== Listing of the steering parameters in alphabetical order ==
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[[NoteBox(warn, We encountered that the alphabetical list is not always up-to-date. Please also search the pages of the module-specific namelists!,43%)]]


'''Namelist abbreviations:'''\\
* agt:   {{{&agent_parameters}}}\\
* biomet: {{{&biometeorology_parameters}}}\\
* bulkc: {{{&bulk_cloud_parameters}}}\\
* chem:  {{{&chemistry_parameters}}}\\
* indoor:  {{{&indoor_parameters}}}\\
* ini:   {{{&initialization_parameters}}}\\
* lpm:   {{{&particle_parameters}}}\\
* lsm:   {{{&land_surface_parameters}}}\\
* nest:  {{{&nesting_parameters}}}\\
* ocean: {{{&ocean_parameters}}}\\
* pcm:   {{{&plant_canopy_parameters}}}\\
* rrtmg: {{{&radiation_parameters}}}\\
* run:   {{{&runtime_parameters}}}\\
* salsa: {{{&salsa_parameters}}}\\
* spec:  {{{&spectra_parameters}}}\\
* stg:   {{{&stg_par}}}\\
* surf:   {{{&surface_data_output_parameters}}}\\
* user:  {{{&user_parameters}}}\\
* usm:  {{{&urban_surface_parameters}}}\\ 
* vfm:  {{{&virtual_flight_parameters}}}\\
* vmm:  {{{&virtual_measurement_parameters}}}\\
* wtm:  {{{&wind_turbine_parameters}}}



Jump to '''[#a A] [#b B] [#c C] [#d D] [#e E] [#f F] [#g G] [#h H] [#i I] J [#k K] [#l L] [#m M] [#n N] [#o O] [#p P] [#q Q] [#r R] [#s S] [#t T] [#u U] [#v V] [#w W] [#x X] [#y Y] [#z Z]'''
\\

||='''Parameter Name'''||='''Namelist\\ Group'''||='''[../fortrantypes Fortran] \\ [../fortrantypes Type]'''=||='''Default \\ Value'''||='''Explanation'''
|| [../agent_parameters#a_rand_target a_rand_target] [=#a] || agt || L(100) || 100 * .F. || Flag for agents within a group to have random targets outside of model domain.
|| [../salsa_parameters#advect_particle_water advect_particle_water] || salsa || L || .T. || Parameter to switch on the advection of condensed water in aerosol particles.
|| [../agent_parameters#adx adx] || agt || R(100) || 100 * 9999999.9 || Distance along x between agents within an agent source (in m).
|| [../agent_parameters#ady ady] || agt || R(100) || 100 * 9999999.9 || Distance along y between agents within an agent source (in m).
|| [../land_surface_parameters#aero_resist_kray aero_resist_kray] || lsm || L || .T. || If set to .TRUE., the parameterization of the aerodynamic resistance for vertical land surface elements follows Krayenhoff & Voogt (2007).  
|| [../particle_parameters#aero_species aero_species] || lpm || C*15 || 'nacl' || Define chemical composition of aerosol particles. 
|| [../particle_parameters#aero_type aero_type] || lpm || C*15 || 'maritime' || Define an aerosol spectrum using three log-normal distributions. 
|| [../particle_parameters#aero_weight aero_weight] || lpm || R || 1.0 || Scale the number concentration defined by aero_type. 
|| [../bulk_cloud_parameters#aerosol_bulk aerosol_bulk] || bulkc || C*20 || 'nacl' || Parameter to choose the used aerosol type. 
|| [../salsa_parameters#aerosol_flux_dpg aerosol_flux_dpg] || salsa || R(7) || 1.3E-8, 5.4E-8, 8.6E-7, 2.0E-7, 2.0E-7, 2.0E-7, 2.0E-7 || The number geometric mean diameter per aerosol emission mode. 
|| [../salsa_parameters#aerosol_flux_mass_fracs_a aerosol_flux_mass_fracs_a] || salsa || R(7) || 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0 || Mass fractions of chemical components for horizontally homogeneous aerosol emission. 
|| [../salsa_parameters#aerosol_flux_sigmag aerosol_flux_sigmag] || salsa || R(7) || 1.8, 2.16, 2.21, 2.0, 2.0, 2.0, 2.0 || The standard deviation of the log-normal size distribution per aerosol emission mode. 
|| [../agent_parameters#agent_maximum_age agent_maximum_age] || agt || R(100) || 100 * 9999999.9 || Maximum time an agent can spend in the simulation before it is deleted. 
|| [../wind_turbine_parameters#air_density air_density] || wtm || R ||1.225|| The air density (in kg/m^3^) is necessary to convert the aerodynamic torque of the rotor into a power (in W). 
|| [../radiation_parameters#albedo albedo] || rrtmg || R || 0.2 || Surface albedo. 
|| [../radiation_parameters#albedo_lw_dif albedo_lw_dif] || rrtmg || R || depends on \\ [../radiation_parameters#albedo_type albedo_type] || Surface albedo for longwave diffuse radiation for a solar angle of 60°. 
|| [../radiation_parameters#albedo_lw_dir albedo_lw_dir] || rrtmg || R || depends on \\ [../radiation_parameters#albedo_type albedo_type] || Surface albedo for longwave direct radiation for a solar angle of 60°.
|| [../radiation_parameters#albedo_type albedo_type] || rrtmg || I ||5|| Controls the choice of the surface albedos for direct/diffuse/broadband albedo according to the predefined land surfaces. 
|| [../radiation_parameters#albedo_sw_dif albedo_sw_dif] || rrtmg || R || depends on \\ [../radiation_parameters#albedo_type albedo_type] || Surface albedo for shortwave diffuse radiation for a solar angle of 60°. 
|| [../radiation_parameters#albedo_sw_dir albedo_sw_dir] || rrtmg || R || depends on \\ [../radiation_parameters#albedo_type albedo_type] || Surface albedo for shortwave direct radiation for a solar angle of 60°.  
|| [../particle_parameters#alloc_factor alloc_factor] || lpm || R || 20.0 || Factor (in percent) describing the memory allocated additionally to the memory needed for initial particles at a given grid cell. 
|| [../agent_parameters#alloc_factor_mas alloc_factor_mas ] || agt || R || 20.0  || Factor (in percent) describing the memory allocated additionally to the memory needed for initial agents at a given grid cell.
|| [../plant_canopy_parameters#alpha_lad alpha_lad] || pcm || R || 9999999.9 || Coefficient for constructing leaf area density profile. 
|| [../initialization_parameters#alpha_surface alpha_surface] || ini || R || 0.0 || Inclination of the model domain with respect to the horizontal (in degrees). 
|| [../land_surface_parameters#alpha_vangenuchten alpha_vangenuchten] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Value of the coefficient alpha for the calculation of the hydraulic conductivity of soil in the parametrization after Van Genuchten
|| [../nesting_parameters#anterpolation_buffer_width anterpolation_buffer_width] || nest || I || 2 || Width of the anterpolation boundary buffer in terms of number of parent-grid points. 
|| [../nesting_parameters#anterpolation_starting_height anterpolation_starting_height] || nest || R || 0.0 || This parameter controls the canopy-restricted anterpolation.
||[../initialization_parameters#approximation approximation] || ini || C*20 || 'boussinesq' || Parameter to choose the approximation of the model equations. 
|| [../agent_parameters#asl asl ] || agt || R(100) || 100 * 9999999.9  || Left border of agent source(s) (in m).
|| [../agent_parameters#asn asn ] || agt || R(100) || 100 * 9999999.9  || North border of agent source(s) (in m).
|| [../agent_parameters#asr asr ] || agt || R(100) || 100 * 9999999.9  || Right border of agent source(s) (in m).
|| [../agent_parameters#ass ass ] || agt || R(100) || 100 * 9999999.9  || South border of agent source(s) (in m).
|| [../agent_parameters#at_x at_x ] || agt || R(100) || 100 * 9999999.9  || x-coordinate of agent group target (in m).
|| [../agent_parameters#at_y at_y ] || agt || R(100) || 100 * 9999999.9  || y-coordinate of agent group target (in m).
|| [../runtime_parameters#averaging_interval averaging_interval] || run || R || 0.0 || Averaging interval for all output of temporally averaged data (in s). 
|| [../runtime_parameters#averaging_interval_pr averaging_interval_pr] || run || R || value of [../runtime_parameters#averaging_interval averaging_interval] || Averaging interval for vertical profiles output to local file [../iofiles#DATA_1D_PR_NETCDF DATA_1D_PR_NETCDF] (in s). 
|| [../spectra_parameters#averaging_interval_sp averaging_interval_sp] || spec || R || value of [../runtime_parameters#averaging_interval averaging_interval] || Averaging interval for spectra output to local file [../iofiles#DATA_1D_SP_NETCDF DATA_1D_SP_NETCDF] (in s).
|| [../surface_data_output_parameters#averaging_interval_surf averaging_interval_surf] || surf || R || value of [../runtime_parameters#averaging_interval averaging_interval] || Averaging interval for surface output data (in s). 
|| [../salsa_parameters#bc_aer_b bc_aer_b] || salsa || C*20 || 'neumann' || The bottom boundary condition of the aerosol (and gas) concentrations. 
|| [../salsa_parameters#bc_aer_l bc_aer_l] || salsa || C*20 || value of [wiki:doc/app/initialization_parameters#bc_lr bc_lr] || The left boundary condition of the aerosol (and gas) concentrations. 
|| [../salsa_parameters#bc_aer_n bc_aer_n] || salsa || C*20 || value of [wiki:doc/app/initialization_parameters#bc_ns bc_ns] || The north boundary condition of the aerosol (and gas) concentrations. 
|| [../salsa_parameters#bc_aer_r bc_aer_r] || salsa || C*20 || value of [wiki:doc/app/initialization_parameters#bc_lr bc_lr] || The right boundary condition of the aerosol (and gas) concentrations. 
|| [../salsa_parameters#bc_aer_s bc_aer_s] || salsa || C*20 || value of [wiki:doc/app/initialization_parameters#bc_ns bc_ns] || The south boundary condition of the aerosol (and gas) concentrations. 
|| [../salsa_parameters#bc_aer_t bc_aer_t] || salsa || C*20 || 'neumann' || The top boundary condition of the aerosol (and gas) concentrations. 
|| [../chemistry_parameters#bc_cs_b bc_cs_b] [=#b] || chem || C*20 || 'dirichlet' || Bottom boundary condition of the chemical species (cs) concentration. ||
|| [../chemistry_parameters#bc_cs_l bc_cs_l] || chem || C*20 || value of [wiki:doc/app/initialization_parameters#bc_lr bc_lr] || Left boundary condition of the chemical species (cs) concentration.  ||
|| [../chemistry_parameters#bc_cs_n bc_cs_n] || chem || C*20 || value of [wiki:doc/app/initialization_parameters#bc_ns bc_ns] || North boundary condition of the chemical species (cs) concentration.  ||
|| [../chemistry_parameters#bc_cs_r bc_cs_r] || chem || C*20 || value of [wiki:doc/app/initialization_parameters#bc_lr bc_lr] || Right boundary condition of the chemical species (cs) concentration.  ||
|| [../chemistry_parameters#bc_cs_s bc_cs_s] || chem || C*20 || value of [wiki:doc/app/initialization_parameters#bc_ns bc_ns] || South boundary condition of the chemical species (cs) concentration.  ||
|| [../chemistry_parameters#bc_cs_t bc_cs_t] || chem || C*20 || 'initial_gradient' || Top boundary condition of the chemical species (cs) concentration.  ||
|| [../initialization_parameters#bc_e_b bc_e_b] || ini || C*20 || 'neumann' || Bottom boundary condition of the TKE. 
|| [../initialization_parameters#bc_lr bc_lr] || ini || C*20 || 'cyclic' || Boundary condition along x (for all quantities). 
|| [../agent_parameters#bc_mas_lr bc_mas_lr] || agt || C*15  || 'absorb'   || Boundary condition for agents at the left and right model boundary.
|| [../agent_parameters#bc_mas_ns bc_mas_ns] || agt || C*15  || 'absorb'   || Boundary condition for agents at the north and south model boundary.
|| [../initialization_parameters#bc_ns bc_ns] || ini || C*20 || 'cyclic' || Boundary condition along y (for all quantities). 
|| [../initialization_parameters#bc_p_b bc_p_b] || ini || C*20 || 'neumann' || Bottom boundary condition of the perturbation pressure. 
|| [../initialization_parameters#bc_p_t bc_p_t] || ini || C*20 || 'dirichlet' || Top boundary condition of the perturbation pressure. 
|| [../particle_parameters#bc_par_b bc_par_b] || lpm || C*15 || 'reflect' || Bottom boundary condition for particle transport. 
|| [../particle_parameters#bc_par_lr bc_par_lr] || lpm || C*15 || 'cyclic' || Lateral boundary condition (x-direction) for particle transport. 
|| [../particle_parameters#bc_par_ns bc_par_ns] || lpm || C*15 || 'cyclic' || Lateral boundary condition (y-direction) for particle transport. 
|| [../particle_parameters#bc_par_t bc_par_t] || lpm || C*15 || 'absorb' || Top boundary condition for particle transport. 
|| [../initialization_parameters#bc_pt_b bc_pt_b] || ini || C*20 || 'dirichlet' || Bottom boundary condition of the potential temperature. 
|| [../initialization_parameters#bc_pt_t bc_pt_t] || ini || C*20 || 'initial_gradient' || Top boundary condition of the potential temperature. 
|| [../initialization_parameters#bc_q_b bc_q_b] || ini || C*20 || 'dirichlet' || Bottom boundary condition of the water vapor / total water mixing ratio.
|| [../initialization_parameters#bc_q_t bc_q_t] || ini || C*20 || 'neumann' || Top boundary condition of the water vapor / total water mixing ratio. 
|| [../initialization_parameters#bc_s_b bc_s_b] || ini || C*20 || 'dirichlet' || Bottom boundary condition of the scalar concentration.
|| [../initialization_parameters#bc_s_t bc_s_t] || ini || C*20 || 'neumann' || Top boundary condition of the scalar concentration.
|| [../ocean_parameters#bc_sa_t bc_sa_t] || ocean || C*20 || 'neumann' || Top boundary condition of the salinity.
|| [../initialization_parameters#bc_uv_b bc_uv_b] || ini || C*20 || 'dirichlet' || Bottom boundary condition of the horizontal wind components u and v. 
|| [../initialization_parameters#bc_uv_t bc_uv_t] || ini || C*20 || 'dirichlet' || Top boundary condition of the horizontal velocity components u and v. 
|| [../plant_canopy_parameters#beta_lad beta_lad] || pcm || R || 9999999.9 || Coefficient for constructing leaf area density profile. 
|| [../ocean_parameters#bottom_salinityflux bottom_salinityflux] || ocean || R || 0.0 || Kinematic salinity flux near the surface (in psu m/s).
|| [../radiation_parameters#bufsize_alltoall bufsize_alltoall] || rtm || I || 0 || Parameter to set max number of items sent in MPI_AlltoAll calls (0=infinite). 
|| [../initialization_parameters#building_height building_height] || ini || R || 50.0 || Height of a single building in m. 
|| [../initialization_parameters#building_length_x building_length_x] || ini || R || 50.0 || Width of a single building in m. 
|| [../initialization_parameters#building_length_y building_length_y] || ini || R || 50.0 || Depth of a single building in m. 
|| [../urban_surface_parameters#building_type building_type] || usm || I || 1 || Index of used building type in building database.
|| [../initialization_parameters#building_wall_left building_wall_left] || ini || R || building centered in \\ x-direction || x-coordinate of the left building wall in m. 
|| [../initialization_parameters#building_wall_south building_wall_south] || ini || R || building centered in \\ y-direction || y-coordinate of the South building wall in m. 
|| [../bulk_cloud_parameters#c_sedimentation c_sedimentation] [=#c] || bulkc || R || 2.0 || Courant number of sedimentation process. 
|| [../land_surface_parameters#c_surface c_surface] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Heat capacity of the surface (skin layer) per unit of area (in J/m²/K). 
|| [../initialization_parameters#calc_soil_moisture_during_spinup calc_soil_moisture] \\ [../initialization_parameters#calc_soil_moisture_during_spinup  _during_spinup] || ini || L || .F. || Solve prognosic equation for soil moisture in the spinup phase. 
|| [../chemistry_parameters#call_chem_at_all_substeps   call_chem_at_all_substeps ] || chem || L || .FALSE. || Switch whether chemistry is called at each substep of the Runge-Kutta scheme or just at each full dynamical time step 'dt'.
|| [../initialization_parameters#call_psolver_at_all_substeps call_psolver_at] \\ [../initialization_parameters#call_psolver_at_all_substeps _all_substeps] || ini || L || .T. || Switch to steer the call of the pressure solver. 
|| [../bulk_cloud_parameters#call_microphysics_at_all_substeps call_microphysics_at] \\ [../bulk_cloud_parameters#call_microphysics_at_all_substeps _all_substeps] || bulkc || L || .F. || Switch to steer the call of 2-moment microphysics. 
|| [../plant_canopy_parameters#canopy_drag_coeff canopy_drag_coeff] || pcm || R || 0.0 || Drag coefficient used in the [/wiki/doc/tut/the/canopy#Canopymodel plant canopy model]. 
|| [../plant_canopy_parameters#canopy_mode canopy_mode] || pcm || C*20 || 'homogeneous' || Canopy mode. 
|| [../initialization_parameters#canyon_height canyon_height] || ini || R || 50.0 || Street canyon height in m. 
|| [../land_surface_parameters#canopy_resistance_coefficient canopy_resistance] \\ [../land_surface_parameters#canopy_resistance_coefficient _coefficient] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || A coefficient (in 1/hPa) for the dependence of the canopy resistance on water vapor pressure deficit. 
|| [../initialization_parameters#canyon_width_x canyon_width_x] || ini || R || 9999999.9 || Street canyon width in x-direction in m. 
|| [../initialization_parameters#canyon_width_y canyon_width_y] || ini || R || 9999999.9 || Street canyon width in y-direction in m. 
|| [../initialization_parameters#canyon_wall_left canyon_wall_left] || ini || R || canyon centered in \\ x-direction || x-coordinate of the left canyon wall in m. 
|| [../initialization_parameters#canyon_wall_south canyon_wall_south] || ini || R || canyon centered in \\ y-direction || y-coordinate of the South canyon wall in m.
|| [../chemistry_parameters#chem_gasphase_on   chem_gasphase_on ] || chem || L || .TRUE. || Switch for switching off the chemical reactions but still doing the transport for all chemical compounds. Useful for test purposes. 
|| [../chemistry_parameters#chem_mechanism   chem_mechanism ] || chem || C*30 || 'phstatp' || Parameter for check of chemistry mechanism.
|| [../initialization_parameters#cfl_factor cfl_factor] || ini || R || 0.1, 0.8 or 0.9 || Time step limiting factor. 
|| [../biometeorology_parameters#clothing clothing] || biomet || I || 1 || Choose clothing outfit for human model. 
|| [../initialization_parameters#cloud_droplets cloud_droplets] || ini || L || .F. || Parameter to switch on usage of cloud droplets. 
|| [../bulk_cloud_parameters#cloud_scheme cloud_scheme] || bulkc || C*20 || 'saturation_adjust' || Parameter to choose microphysics for bulk cloud physics.
|| [../bulk_cloud_parameters#cloud_water_sedimentation cloud_water_sedimentation] || bulkc || L || .F. || Parameterize cloud water sedimentation in cloud physics scheme. 
|| [../agent_parameters#coll_t_0 coll_t_0] || agt || R ||3.0|| Range of unscreened interactions for social force model (in s).
|| [../initialization_parameters#collective_wait collective_wait] || ini || L || see parameter \\ description || Set barriers in front of collective MPI operations. 
|| [../particle_parameters#collision_kernel collision_kernel] || lpm || C*15 || 'none' || Parameter to steer cloud droplet growth by collision processes. 
|| [../bulk_cloud_parameters#collision_turbulence collision_turbulence] || bulkc || L || .F. || Parameterize turbulence effects on autoconversion and accretion of cloud droplets. 
|| [../spectra_parameters#comp_spectra_level comp_spectra_level] || spec || I(100) || no level || Vertical level for which horizontal spectra are to be calculated and output (gridpoints).
|| [../stg_par#compute_velocity_seeds_local compute_velocity_seeds] \\ [../stg_par#compute_velocity_seeds_local _local] || stg || L || .F. || Flag to control the computation of velocity seeds that are the basis of the imposed disturbances.
|| [../initialization_parameters#complex_terrain complex_terrain] || ini || L || .F. || Parameter to enable simulations featuring complex topography. 
|| [../initialization_parameters#conserve_volume_flow conserve_volume_flow] || ini || L || .F. || Conservation of volume flow in x- and y-direction. 
|| [../initialization_parameters#conserve_volume_flow_mode conserve_volume] \\ [../initialization_parameters#conserve_volume_flow_mode _flow_mode] || ini || C*16 || 'default' || Modus of volume flow conservation. 
|| [../land_surface_parameters#conserve_water_content conserve_water_content] || lsm || L || .T. || Flag parameter for the bottom boundary condition of the soil model. 
|| [../biometeorology_parameters#consider_obstructions consider_obstructions] || biomet || L || .T. || Considers obstruction. 
|| [../radiation_parameters#constant_albedo constant_albedo] || rrtmg || L || .F. || Parameter to fix the surface albedo. 
|| [../initialization_parameters#constant_flux_layer constant_flux_layer] || ini || L || .T. || Parameter to switch on a constant flux layer between the surface and first computational grid level. 
|| [../land_surface_parameters#constant_roughness constant_roughness] || lsm || L || .F. || Keep prescribed roughness length constant in time.
|| [../agent_parameters#corner_gate_start corner_gate_start] || agt || R ||0.5|| Distance of navigation gate starting point to obstacle corner (in m).
|| [../agent_parameters#corner_gate_width corner_gate_width] || agt || R ||1.0|| Width of navigation gate at obstacle corners (in m).
|| [../initialization_parameters#coupling_start_time coupling_start_time] || ini || R || 0.0 || Simulation time of a precursor run.. 
|| [../runtime_parameters#cpu_log_barrierwait cpu_log_barrierwait] || run || L || .F. || Set an MPI-barrier at the beginning of each CPU time measurement. 
|| [../runtime_parameters#create_disturbances create_disturbances] || run || L || .T. || Switch to impose random perturbations to the horizontal velocity field.
|| [../runtime_parameters#cross_profiles cross_profiles] || run || C*100(100) || see parameter \\ description || Determines which vertical profiles are to be presented in which coordinate system if the plot software '''palmplot''' is used. 
|| [../chemistry_parameters#cs_heights   cs_heights ] || chem || R(99,100) || 9999999.9  || Height levels above ground (in m) to go with [../chemistry_parameters#cs_profile cs_profile] in order to define initial profiles of chemical species.
|| [../chemistry_parameters#cs_name   cs_name ] || chem || C*11(99) || 'novalue'  || Names of chemical species where surface concentrations or concentration profiles are prescribed. 
|| [../chemistry_parameters#cs_profile   cs_profile ] || chem || R(99,100) || 9999999.9  ||  Concentration values of chemical species (gases in ppm, particulate matter in kg m^-3^) at [../chemistry_parameters#cs_heights cs_heights].
|| [../chemistry_parameters#cs_surface   cs_surface ] || chem || R || 0.0  || Concentration value for chemical species at the surface (gases in ppm, particulate matter in kg m^-3^).
|| [../plant_canopy_parameters#cthf cthf] || pcm || R || 0.0 || Average heat flux that is prescribed at the top of the plant canopy (in K m/s). 
|| [../particle_parameters#curvature_solution_effects curvature_solution] \\ [../particle_parameters#curvature_solution_effects _effects] || lpm || L || .F. || Parameter to consider solution and curvature effects on the equilibrium vapor pressure of cloud droplets. 
|| [../bulk_cloud_parameters#curvature_solution_effects_bulk curvature_solution] \\ [../bulk_cloud_parameters#curvature_solution_effects_bulk _effects_bulk] || bulkc || L || .F. || Parameter to switch on an activation scheme which considers curvature and solution effects of cloud droplet activation. 
|| [../initialization_parameters#cycle_mg cycle_mg] || ini || C*1 || 'w' || Type of cycle to be used with the multi-grid method. 
|| [../initialization_parameters#damp_level_1d damp_level_1d] [=#d] || ini || R || zu(nz + 1) || Height where the damping layer begins in the 1d-model (in m). 
|| [../runtime_parameters#data_output data_output] || run || C*10(100) || 100*' ' || Quantities for which 2d cross section and/or 3d volume data are to be output. 
|| [../runtime_parameters#data_output_2d_on_each_pe data_output_2d_on] \\ [../runtime_parameters#data_output_2d_on_each_pe _each_pe] || run || L || .T. || Output 2d cross section data by one or all processors.
|| [../initialization_parameters#data_output_during_spinup data_output] \\ [../initialization_parameters#data_output_during_spinup _during_spinup] || ini || L || .F. || Parameter for switching on data output in the spinup phase (see spinup_time). 
|| [../runtime_parameters#data_output_masks data_output_masks] || run || C*10 \\ (max_masks, \\ 100) || max_masks*100*' ' || Quantities for which masked data are to be output. 
|| [../user_parameters#data_output_masks_user data_output_masks_user] || user || C*10 \\ (max_masks, \\ 100) || max_masks*100*' ' || User-defined quantities for which masked data are to be output. 
|| [../runtime_parameters#data_output_pr data_output_pr] || run || C*10(100) || 100*' ' || Quantities for which vertical profiles (horizontally averaged) are to be output. 
|| [../user_parameters#data_output_pr_user data_output_pr_user] || user || C*10(200) || 200*' ' || User defined quantities for which horizontally averaged profile data is to be output.
|| [../particle_parameters#data_output_pts data_output_pts] || lpm || C*30(50) ||  ||  
||[../spectra_parameters#data_output_sp data_output_sp] || spec ||C*10(10)|| 10*' ' ||Quantities for which horizontal spectra are to be calculated and output.
||[../surface_data_output_parameters#data_output_surf data_output_surf] || surf || C*300(100) || ' ' || Quantities for which surface data shall be output.
|| [../user_parameters#data_output_user data_output_user] || user || C*10(100) || 100*' ' || User defined quantities for which 2d cross section and/or 3d volume data are to be output. 
|| [../chemistry_parameters#daytype_mdh daytype_mdh] || chem || C*80 || 'workday' || Type of weekday required for the MDH (!MonthDayHour) case of the DEFAULT mode of the emissions module.
|| [../particle_parameters#deallocate_memory deallocate_memory] || lpm || L || .T. || Parameter to enable deallocation of unused memory.
|| [../agent_parameters#deallocate_memory_mas deallocate_memory_mas] || agt || L ||.T.|| Parameter to enable deallocation of unused memory.
|| [../land_surface_parameters#deep_soil_temperature deep_soil_temperature] || lsm || R || 9999999.9 || Deep soil temperature (K) used as bottom boundary condition for the heat diffusion in the soil model.
|| [../particle_parameters#density_ratio density_ratio] || lpm || R(10) || 0.0, 9*9999999.9 || Ratio of the density of the fluid and the density of the particles. 
|| [../salsa_parameters#depo_pcm_par depo_pcm_par] || salsa || C(20) || 'zhang2001'  || The method to solve the aerosol size specific dry deposition velocity (in m s^-1^). 
|| [../salsa_parameters#depo_pcm_type depo_pcm_type] || salsa || C(20) || 'deciduous_broadleaf'  || Leaf type applied in the dry deposition model. 
|| [../salsa_parameters#depo_surf_par depo_surf_par] || salsa || C(20) || 'zhang2001'  || The method to solve the aerosol size specific dry deposition velocity (in m s^-1^) over an urban surface. 
|| [../chemistry_parameters#deposition_dry deposition_dry] || chem || L || .FALSE. || Switches the deposition calculation for particles and gases ON (.TRUE.) or OFF (.FALSE.)  
|| [../agent_parameters#dim_size_agtnum_manual dim_size_agtnum_manual] || agt || I ||9999999|| Manually set size for agent-number dimension.
|| [../agent_parameters#dim_size_factor_agtnum dim_size_factor_agtnum] || agt || R ||1.0|| Factor to modify the agent-number dimension size for agent output.
|| [../particle_parameters#dissipation_classes dissipation_classes] || lpm || I ||10|| Number of dissipation classes to be used in the collision efficiency table. 
|| [../initialization_parameters#dissipation_1d dissipation_1d] || ini || C*20 || 'detering' || Calculation method for the energy dissipation term in the TKE equation of the 1d-model. 
|| [../agent_parameters#dist_to_int_target dist_to_int_target] || agt || R ||0.25|| Distance (in m) at which an intermittent target counts as reached.
|| [../runtime_parameters#disturbance_amplitude disturbance_amplitude] || run || R || 0.25 || Maximum perturbation amplitude of the random perturbations imposed to the horizontal velocity field (in m/s).
|| [../runtime_parameters#disturbance_energy_limit disturbance_energy] \\ [../runtime_parameters#disturbance_energy_limit _limit] || run || R || 0.01 || Upper limit value of the perturbation energy of the velocity field used as a criterion for imposing random perturbations (in m^2^/s^2^). 
|| [../runtime_parameters#disturbance_level_b disturbance_level_b] || run || R || zu(3) or zu(nz*2/3) || Lower limit of the vertical range for which random perturbations are to be imposed on the horizontal wind field (in m). 
|| [../runtime_parameters#disturbance_level_t disturbance_level_t] || run || R || zu(nz/3) or zu(nzt-3) || Upper limit of the vertical range for which random perturbations are to be imposed on the horizontal wind field (in m). 
|| [../nesting_parameters#domain_layouts domain_layouts] || nest || derived TYPE pmc_layout(64) || None || General information about the nested domains to be used. 
|| [../runtime_parameters#do2d_at_begin do2d_at_begin] || run || L || .F. || Output 2d cross section data by one or all processors. 
|| [../runtime_parameters#do3d_at_begin do3d_at_begin] || run || L || .F. || Output of 3d volume data at the beginning of a run. 
|| [../initialization_parameters#dp_external dp_external] || run || L || .F. || External pressure gradient switch. 
|| [../initialization_parameters#dp_smooth dp_smooth] || run || L || .F. || Vertically smooth the external pressure gradient using a sinusoidal smoothing function. 
|| [../initialization_parameters#dp_level_b dp_level_b] || run || R || 0.0 || Lower limit of the vertical range for which the external pressure gradient is applied (in m). 
|| [../initialization_parameters#dpdxy dpdxy] || run || R(2) || 2*0.0 || Values of the external pressure gradient applied in x- and y-direction, respectively (in Pa/m). 
|| [../salsa_parameters#dpg dpg] || salsa || R(7) || 1.3E-8, 5.4E-8, 8.6E-7, 2.0E-7, 2.0E-7, 2.0E-7, 2.0E-7 || The number geometric mean diameter per aerosol mode (in m).
|| [../bulk_cloud_parameters#dry_aerosol_radius dry_aerosol_radius] || bulkc || R || 0.05E-6 || The mean geometric radius of the dry aerosol spectrum. 
|| [../runtime_parameters#dt dt] || run || R || variable || Time step for the 3d-model (in s). 
|| [../agent_parameters#dt_agent dt_agent] || agt || R ||0.02|| Agent timestep (in seconds).
|| [../agent_parameters#dt_arel dt_arel] || agt || R ||9999999.9|| Interval in which agents are released at their respective sources (in s).
|| [../runtime_parameters#dt_averaging_input dt_averaging_input] || run || R || 0.0 || Temporal interval of data which are subject to temporal averaging (in s). 
|| [../runtime_parameters#dt_averaging_input_pr dt_averaging] \\ [../runtime_parameters#dt_averaging_input_pr _input_pr] || run || R || value of \\ [../runtime_parameters#dt_averaging_input dt_averaging_input] || Temporal interval of data which are subject to temporal averaging of vertical profiles and/or spectra (in s). 
|| [../runtime_parameters#dt_coupling dt_coupling] || run || R || 9999999.9 || Temporal interval for the data exchange in case of runs with coupled models (e.g. atmosphere - ocean) (in s). 
|| [../runtime_parameters#dt_data_output dt_data_output] || run || R || 9999999.9 || Temporal interval at which data (3d volume data, cross sections, vertical profiles, spectra) shall be output (in s). 
|| [../runtime_parameters#dt_data_output_av dt_data_output_av] || run || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which time averaged 3d volume data and/or 2d cross section data shall be output (in s).
|| [../wind_turbine_parameters#dt_data_output_wtm dt_data_output_wtm] || wtm || R || 0.0 || Output interval (s) for NetCDF data. this parameter does not affect the deprecated ASCII data output that is written at each time step. With the default value 0.0 data will be output every time step.
|| [../runtime_parameters#dt_disturb dt_disturb] || run || R || 9999999.9 || Temporal interval at which random perturbations are to be imposed on the horizontal velocity field (in s). 
|| [../runtime_parameters#dt_domask dt_domask] || run || R \\ (max_masks) || max_masks * value \\ of [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which instantaneous masked data shall be output (in s). 
|| [../runtime_parameters#dt_dopr dt_dopr] || run || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which data of vertical profiles shall be output (to local file [../iofiles#DATA_1D_PR_NETCDF DATA_1D_PR_NETCDF] (in s). 
|| [../runtime_parameters#dt_dopr_listing dt_dopr_listing] || run || R || 9999999.9 ||Temporal interval at which data of vertical profiles shall be output (output for printouts, local file [../iofiles#LIST_PROFIL LIST_PROFIL]) (in s).
|| [../particle_parameters#dt_dopts dt_dopts] || lpm || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which time series data of particle quantities shall be output (in s). 
|| [../spectra_parameters#dt_dosp dt_dosp] || spec || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which spectra data shall be output (in s).
|| [../surface_data_output_parameters#dt_dosurf dt_dosurf] || surf || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which instantaneous surface data shall be output (in s).
|| [../surface_data_output_parameters#dt_dosurf_av dt_dosurf_av] || surf || R || value of \\ [../surface_data_output_parameters#dt_dosurf dt_dosurf] || Temporal interval at which time averaged surface data shall be output (in s).
|| [../runtime_parameters#dt_dots dt_dots] || run || R || see parameter \\ description || Temporal interval at which time series data shall be output (in s). 
|| [../runtime_parameters#dt_do2d_xy dt_do2d_xy] || run || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which horizontal cross section data shall be output (in s). 
|| [../runtime_parameters#dt_do2d_xz dt_do2d_xz] || run || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which vertical cross section data (xz) shall be output (in s). 
|| [../runtime_parameters#dt_do2d_yz dt_do2d_yz] || run || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which vertical cross section data (yz) shall be output (in s). 
|| [../runtime_parameters#dt_do3d dt_do3d] || run || R || value of \\ [../runtime_parameters#dt_data_output dt_data_output] || Temporal interval at which 3d volume data shall be output (in s). 
|| [../runtime_parameters#dt_max dt_max] || run || R || 20.0 || Maximum allowed value of the timestep (in s). 
|| [../particle_parameters#dt_min_part dt_min_part] || lpm || R || 0.0002 || Minimum value for the particle timestep when SGS velocities are used (in s). 
|| [../particle_parameters#dt_prel dt_prel] || lpm || R || 9999999.9 || Temporal interval at which particles are to be released from a particle source (in s). 
|| [../initialization_parameters#dt_pr_1d dt_pr_1d] || ini || R || 9999999.9 || Temporal interval of vertical profile output of the 1D-model (in s). 
|| [../radiation_parameters#dt_radiation dt_radiation] || rrtmg || R || 0.0 || Time step of the radiation model (in s). 
|| [../runtime_parameters#dt_restart dt_restart] || run || R || 9999999.9 || Temporal interval at which a new restart run is to be carried out (in s). 
|| [../runtime_parameters#dt_run_control dt_run_control] || run || R || 60.0 || Temporal interval at which run control output is to be made (in s). 
|| [../initialization_parameters#dt_run_control_1d dt_run_control_1d] || ini || R || 60.0 || Temporal interval of runtime control output of the 1d-model (in s). 
|| [../salsa_parameters#dt_salsa dt_salsa] || salsa || R || 0.1   || Time step for calling aerosol dynamic processes of SALSA.
|| [../initialization_parameters#dt_spinup dt_spinup] || ini || R || 5.0 || Time step during integration of the land surface, urban surface, and radiation models during the spinup phase.
|| [../stg_par#dt_stg_adjust dt_stg_adjust] || stg || R || 1800.0 || Time interval (in seconds) to adjust the turbulence statistics, i.e. the Reynolds-stress tensor, which define the amplitude and correlation of imposed correlation.
|| [../stg_par#dt_stg_call dt_stg_call] || stg || R || 0.0 || Time interval to call the synthetic turbulence generator.
|| [../virtual_measurement_parameters#dt_virtual_measurement dt_virtual_measurement] || vmm || R || 0.01 || Temporal interval at which virtual measurements shall be output (in s).
|| [../agent_parameters#dt_write_agent_data dt_write_agent_data] || agt || R ||9999999.9|| Output interval for agent NetCDF output (in s).
|| [../particle_parameters#dt_write_particle_data dt_write_particle] \\ [../particle_parameters#dt_write_particle_data _data] || lpm || R || 9999999.9 || Temporal interval for output of particle data (in s). 
|| [../initialization_parameters#dx dx] || ini || R || 1.0 || Horizontal grid spacing along the x-direction (in m). 
|| [../initialization_parameters#dy dy] || ini || R || 1.0 || Horizontal grid spacing along the y-direction (in m). 
|| [../initialization_parameters#dz dz] || ini || R(10) || 10 * -1 || Vertical grid spacing (in m). 
|| [../initialization_parameters#dz_max dz_max] || ini || R || 999.0 || Allowed maximum vertical grid spacing (in m).
|| [../land_surface_parameters#dz_soil dz_soil] || lsm || R(20) || see description || Thickness of the individual soil layers (in m). 
|| [../initialization_parameters#dz_stretch_factor dz_stretch_factor] || ini || R || 1.08 || Stretch factor for a vertically stretched grid (see [../initialization_parameters#dz_stretch_level dz_stretch_level]). 
|| [../initialization_parameters#dz_stretch_level dz_stretch_level] || ini || R || +/- 9999999.9 || Height level above/below which the grid is to be stretched vertically (in m). 
|| [../initialization_parameters#e_init e_init] [=#e] || ini || R || 0.0 || Initial TKE in m^2^s^-2^. 
|| [../initialization_parameters#e_min e_min] || ini || R || 0.0 || Minimum TKE in m^2^s^-2^. 
|| [../chemistry_parameters#emiss_factor_main emiss_factor_main] || chem || R(99) || -9999.0 ||  Constant emission scaling factor for MAIN street types, used in the PARAMETERIZED mode of chem_emission module.
|| [../salsa_parameters#emiss_factor_main emiss_factor_main] || salsa || R || 0.0 || Constant emission scaling factor for main street types.   
|| [../chemistry_parameters#emiss_factor_side emiss_factor_side] || chem || R(99) || -9999.0 ||  Constant emission scaling factor for SIDE (secondary) street types, used in the PARAMETERIZED mode of chem_emission module.
|| [../salsa_parameters#emiss_factor_side emiss_factor_side] || salsa || R || 0.0 || Constant emission scaling factor for side street types.
|| [../chemistry_parameters#emiss_lod emiss_lod] || chem || I || -1 ||  Level of Detail / Mode of chemistry emissions (Options: 0=='PARAMETERIZED', 1=='DEFAULT', 2=='PREPROCESSED').
|| [../chemistry_parameters#emissions_anthropogenic emisssions_anthropogenic] || chem || L || .FALSE. ||  Switches the chem_emission module ON (.TRUE.) or OFF (.FALSE.) 
|| [../radiation_parameters#emissivity emissivity] || rrtmg || R || 0.95 || Surface emissivity (0-1). 
|| [../runtime_parameters#end_time end_time] || run || R || 0.0 || Simulation time of the 3D model (in s). 
|| [../agent_parameters#end_time_arel end_time_arel] || agt || R ||9999999.9|| Simulation time at which the release of agent is stopped (in s).
|| [../particle_parameters#end_time_prel end_time_prel] || lpm || R || 9999999.9 || Time of the last release of particles (in s). 
|| [../initialization_parameters#end_time_1d end_time_1d] || ini || R || 864000.0 || Time to be simulated for the 1D-model (in s). 
|| [../initialization_parameters#ensemble_member_nr ensemble_member_nr] || ini || I ||0|| Number of statistically independent members of a simulation. 
|| [../land_surface_parameters#f_shortwave_incoming f_shortwave_incoming] [=#f] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Fraction of the net shortwave radiation that is transmitted directly to the top soil layer. 
|| [../salsa_parameters#feedback_to_palm feedback_to_palm] || salsa || L || .F. || Parameter to switch on the dynamic feedback to the flow due to condensation of water vapour on aerosol particles. 
|| [../land_surface_parameters#field_capacity field_capacity] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Soil moisture at field capacity (in m³/m³). 
|| [../initialization_parameters#fft_method fft_method] || ini || C*20 || 'system specific' || FFT-method to be used. 
|| [../virtual_flight_parameters#flight_angle flight_angle] || vfm || R(100) || 100*45.0 || Horizontal flight angle (in degrees) describing the flight direction.  
|| [../virtual_flight_parameters#flight_begin flight_begin] || vfm || R || 0.0 || Start time of virtual flight measurement. 
|| [../virtual_flight_parameters#flight_end flight_end] || vfm || R ||  9999999.9 || End time of virtual flight measurement.  
|| [../virtual_flight_parameters#flight_level flight_level] || vfm || R(100) || 100*100.0 || Flight level in meter.
|| [../initialization_parameters#flux_input_mode flux_input_mode] || ini || C*40 || 'approximation-specific' || Parameter to choose the flux unit for input data. 
|| [../initialization_parameters#flux_output_mode flux_output_mode] || ini || C*40 || 'approximation-specific' || Parameter to choose the flux unit for outputdata. 
|| [../runtime_parameters#force_print_header force_print_header] || run || L || .F. || Steering of header output to the local file [../iofiles#RUN_CONTROL RUN_CONTROL]. 
|| [../initialization_parameters#galilei_transformation galilei_transformation] [=#g] || ini || L || .F. || Application of a Galilei-transformation to the coordinate system of the model. 
|| [../wind_turbine_parameters#gear_efficiency gear_efficiency] || wtm || R || 1.0 || Efficiency of the gear: Loss between rotor and generator. 
|| [../wind_turbine_parameters#gear_ratio gear_ratio] || wtm || R || 97.0 || Gear ratio from rotor to generator. 
|| [../wind_turbine_parameters#generator_efficiency generator_efficiency] || wtm || R || 0.944 || Electric efficiency of the generator.
|| [../wind_turbine_parameters#generator_inertia generator_inertia] || wtm || R ||534.116|| Inertia of the generator (in kg/m^2^).
|| [../wind_turbine_parameters#generator_power_rated generator_power_rated] || wtm || R || 5296610.0 || Rated power of the wind turbine (in W). 
|| [../wind_turbine_parameters#generator_speed_rated generator_speed_rated] || wtm || R ||121.6805|| Rated generator speed (in rad/s). 
|| [../wind_turbine_parameters#generator_torque_max generator_torque_max] || wtm || R || 47402.91 || Maximum Torque of the generator (in Nm). 
|| [../wind_turbine_parameters#generator_torque_rate_max generator_torque_rate_max] || wtm || R || 15000.0 || Maximum generator torque rate (in Nm/s).
|| [../bulk_cloud_parameters#graupel graupel] || bulkc || L || .F. || Parameter to turn on prognostic equations of mixing ratio and number concentration for graupel.
|| [../salsa_parameters#h2so4_init h2so4_init] [=#h] || salsa || R || 1.0 || Initial number concentration (in m^-3^) of gaseous sulphuric acid H2SO4 (g). 
|| [../salsa_parameters#hno3_init hno3_init] || salsa || R || 1.0 || Initial number concentration (in m^-3^) of gaseous nitric acid HNO3 (g). 
|| [../wind_turbine_parameters#hub_x hub_x] || wtm || R(100) || 9999999.9 || Longitudinal position of the rotor center (in m). 
|| [../wind_turbine_parameters#hub_y hub_y] || wtm || R(100) || 9999999.9 || Lateral position of the rotor center (in m). 
|| [../wind_turbine_parameters#hub_z hub_z] || wtm || R(100) || 9999999.9 || Vertical position of the rotor center (in m). This represents the hub height of the turbine. 
|| [../initialization_parameters#humidity humidity]  || ini || L || .F. || Parameter to switch on the prognostic equation for water vapor mixing ratio q. 
|| [../land_surface_parameters#hydraulic_conductivity hydraulic_conductivity] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Hydraulic conductivity of the soil at saturation (in m/s).
|| [../bulk_cloud_parameters#ice_crystal_sedimentation ice_crystal_sedimentation] || bulkc || L || .F. || Parameter to consider sedimentation of ice crystal according to Seifert and Beheng 2006. 
|| [../chemistry_parameters#icntrl icntrl] [=#i] || chem || I(20) || 0 ||  Selection and steering of the chemistry solver.
|| [../bulk_cloud_parameters#in_init in_init] || bulkc || R || 1.0E3 || Background ice nuclei concentration.
|| [../indoor_parameters#indoor_during_spinup indoor_during_spinup] || indoor || L || .F. || Control flag to switch-off/on the indoor-model during wall/soil spinup.   
|| [../initialization_parameters#inflow_damping_height inflow_damping_height] || ini || R || from precursor run || Height below which the turbulence signal is used for turbulence recycling (in m). 
|| [../initialization_parameters#inflow_damping_width inflow_damping_width] || ini || R || 0.1* [../initialization_parameters#inflow_damping_height inflow] \\ [../initialization_parameters#inflow_damping_height _damping_height] || Transition range within which the turbulence signal is damped to zero (in m). 
|| [../initialization_parameters#inflow_disturbance_begin inflow_disturbance] \\ [../initialization_parameters#inflow_disturbance_begin _begin] || ini || I || MIN(10, nx/2 or ny/2) || Lower limit of the horizontal range for which random perturbations are to be imposed on the horizontal velocity field (gridpoints). 
|| [../initialization_parameters#inflow_disturbance_end inflow_disturbance] \\ [../initialization_parameters#inflow_disturbance_end _end] || ini || I || MIN(100, 3/4*nx or 3/4*ny) || Upper limit of the horizontal range for which random perturbations are to be imposed on the horizontal velocity field (gridpoints).
|| [../indoor_parameters#initial_indoor_temperature initial_indoor_temperature] || indoor || R || 293.15 || Initial indoor temperatures.
|| [../particle_parameters#initial_weighting_factor initial_weighting_factor] || lpm || R || 1.0 || Factor to define the real number of initial droplets in a grid box. 
|| [../initialization_parameters#initializing_actions initializing_actions] || ini || C*100 || no default value || Initialization actions to be carried out. 
|| [../particle_parameters#initial_weighting_factor initial_weighting] \\ [../particle_parameters#initial_weighting_factor _factor] || lpm || R || 1.0 || Factor to define the real number of initial droplets in a grid cell. 
|| [../initialization_parameters#km_constant km_constant] [=#k] || ini || R || variable (computed \\ from TKE) || Constant eddy diffusivities are used (laminar simulations). 
|| [../land_surface_parameters#l_vangenuchten l_vangenuchten] [=#l] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Value of the coefficient l for the calculation of the hydraulic conductivity of soil in the parametrization after Van Genuchten. 
|| [../plant_canopy_parameters#lad_surface lad_surface] || pcm || R || 0.0 || Surface value of the leaf area density (in m^2^/m^3^). 
|| [../plant_canopy_parameters#lad_type_coef lad_type_coef] || pcm || R(11) || 1.0 || Multiplicative coefficients for different types of plant canopy, e.g. to account for deciduous tree during wintertime. Please note, this is only active when data is read from ASCII file.
|| [../plant_canopy_parameters#lad_vertical_gradient lad_vertical_gradient] || pcm || R(10) || 10*0.0 || Gradient(s) of the leaf area density (in m^2^/m^4^). 
|| [../plant_canopy_parameters#lad_vertical_gradient_level lad_vertical_gradient] \\ [../plant_canopy_parameters#lad_vertical_gradient_level _level] || pcm || R(10) || 10*0.0 || Height level above which the gradient of the leaf area density defined by [../plant_canopy_parameters#lad_vertical_gradient lad_vertical_gradient] is effective (in m). 
|| [../plant_canopy_parameters#lai_beta lai_beta] || pcm || R || 0.0 || Leaf area index needed for construction of leaf area density profile. 
||[../land_surface_parameters#lambda_surface_stable lambda_surface_stable ] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Heat conductivity (between atmosphere and soil) (in W/m²/K) in case of stable stratification. 
||[../land_surface_parameters#lambda_surface_unstable lambda_surface_unstable ] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Heat conductivity (between atmosphere and soil) (in W/m²/K) in case of unstable stratification. 
|| [../initialization_parameters#large_scale_forcing large_scale_forcing] || ini || L || .F. || Parameter to switch on the use of large-scale forcing information from an external file.
|| [../initialization_parameters#large_scale_subsidence large_scale_subsidence] || ini || L || .F. || Parameter to switch on the use of large scale subsidence/ascent.
|| [../initialization_parameters#latitude latitude] || ini || R || 55.0 || Geographical latitude (in degrees). 
|| [../land_surface_parameters#leaf_area_index leaf_area_index] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Leaf area index of the canopy (in m²/m²). 
|| [../plant_canopy_parameters#leaf_scalar_exch_coeff leaf_scalar_exch_coeff] || pcm || R || 0.0 || Scalar exchange coefficient for a leaf (dimensionless). 
|| [../plant_canopy_parameters#leaf_surface_conc leaf_surface_conc] || pcm || R || 0.0 || Concentration of a passive scalar at the surface of a leaf \\ (in kg m^-3^ or ppm). 
|| [../virtual_flight_parameters#leg_mode leg_mode] || vfm || C(100) || 100*'cyclic'  || Flight mode, either 'cyclic' or 'return'. 
|| [../bulk_cloud_parameters#limiter_sedimentation limiter_sedimentation] || bulkc || L || .T. || Use limiter in raindrop sedimentation process. 
|| [../salsa_parameters#listspec listspec] || salsa || C*3(7)  || 'SO4', 6 * ' '  || List of activated aerosol chemical components. 
|| [../particle_parameters#log_sigma log_sigma] || lpm || R(3) || 2.0 || Parameters of initial aerosol spectrum. 
|| [../initialization_parameters#longitude longitude] || ini || R || 0.0 || Geographical longitude (in degrees). 
|| [../initialization_parameters#loop_optimization loop_optimization] || ini || C*16 || 'cache' || Method used to optimize loops for solving the prognostic equations. 
|| [../initialization_parameters#lsf_exception lsf_exception] || ini || L || .F. || Parameter to explicitly allow large-scale forcing in case of topography /= 'flat' .
|| [../radiation_parameters#lw_radiation lw_radiation] || rrtmg || L || .T. || Parameter to switch on/off longwave radiation. 
|| [../chemistry_parameters#main_street_id main_street_id] [=#m] || chem /\\ salsa || I(99) || 0 ||  Index for identifying MAIN streets following street type classes from {{{OpenStreetMap}}}. 
|| [../initialization_parameters#masking_method masking_method]  || ini || L || .F. || Switch for topography boundary conditions in multigrid solver. 
|| [../runtime_parameters#mask_scale_x mask_scale_x] || run || R || 1.0 || Scaling length for masked data output along x-direction. 
|| [../runtime_parameters#mask_scale_y mask_scale_y] || run || R || 1.0 || Scaling length for masked data output along y-direction. 
|| [../runtime_parameters#mask_scale_z mask_scale_z] || run || R || 1.0 || Scaling length for masked data output along z-direction. 
|| [../runtime_parameters#mask_x mask_x] || run || R \\ (max_masks, \\ 100) || max_masks*100*-1.0 || All x-coordinates of mask positions (in multiples of [../runtime_parameters#mask_scale_x mask_scale_x]). 
|| [../runtime_parameters#mask_y mask_y] || run || R \\ (max_masks, \\ 100) || max_masks*100*-1.0 || All y-coordinates of mask positions (in multiples of [../runtime_parameters#mask_scale_y mask_scale_y]). 
|| [../runtime_parameters#mask_z mask_z] || run || R \\ (max_masks, \\ 100) || max_masks*100*-1.0 || All z-coordinates of mask positions (in multiples of [../runtime_parameters#mask_scale_z mask_scale_z]). 
|| [../runtime_parameters#mask_x_loop mask_x_loop] || run || R \\ (max_masks, \\ 3) || max_masks * \\ (/-1.0,-1.0,-1.0/) || Loop begin, end and stride for x-coordinates of mask locations for masks (in multiples of [../runtime_parameters#mask_scale_x mask_scale_x]). 
|| [../runtime_parameters#mask_y_loop mask_y_loop] || run || R \\ (max_masks, \\ 3) || max_masks * \\ (/-1.0,-1.0,-1.0/) || Loop begin, end and stride for y-coordinates of mask locations for masks (in multiples of [../runtime_parameters#mask_scale_y mask_scale_y]). 
|| [../runtime_parameters#mask_z_loop mask_z_loop] || run || R \\ (max_masks, \\ 3) || max_masks * \\ (/-1.0,-1.0,-1.0/) || Loop begin, end and stride for z-coordinates of mask locations for masks (in multiples of [../runtime_parameters#mask_scale_z mask_scale_z]). 
|| [../salsa_parameters#mass_fracs_a mass_fracs_a] || salsa || R(7) || 1.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0  || Mass fractions of soluble chemical components (subrange 2a). 
|| [../salsa_parameters#mass_fracs_b mass_fracs_b] || salsa || R(7) || 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0   || Mass fractions of insoluble chemical components (subrange 2b). 
|| [../agent_parameters#max_dist_from_path max_dist_from_path] || agt || R ||1.0|| Agent distance from current path section that triggers recalculation of that agent's path (in m).
|| [../virtual_flight_parameters#max_elev_change max_elev_change] || vfm || R(100) ||100*0.0|| Maximum possible elevation change in case rate_of_climb is not equal to zero.
|| [../particle_parameters#max_number_particles_per_gridbox max_number_particles] \\ [../particle_parameters#max_number_particles_per_gridbox _per_gridbox] || lpm || I || 100 || Threshold for splitting of super droplets.
|| [../radiation_parameters#max_raytracing_dist max_raytracing_dist] || rrtmg || R || -999.0 || Maximum distance for raytracing (in meters).
|| [../chemistry_parameters#max_street_id max_street_id] || chem / \\ salsa || I(99) || 0 ||  Maximum index value for identifying ALL (MAIN and SIDE) streets following street type classes from {{{OpenStreetMap}}}.
|| [../particle_parameters#merging merging] || lpm || L || .F. || Switch on/off merging algorithm for particles (if cloud_droplets=.T.). 
|| [../initialization_parameters#mg_cycles mg_cycles] || ini || I || 4 || Number of cycles to be used with the multigrid scheme. 
|| [../initialization_parameters#mg_switch_to_pe0_level mg_switch_to] \\ [../initialization_parameters#mg_switch_to_pe0_level _pe0_level] || ini || I || -1 || Grid level at which data shall be gathered on PE0. 
|| [../bulk_cloud_parameters#microphysics_ice_phase microphysics_ice_phase] || bulkc || L || .F. || Parameter to turn on ice phase and calculate prognostic equations for ice crystal number concentration and mixing ratio.
|| [../land_surface_parameters#min_canopy_resistance min_canopy_resistance] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Minimum canopy (i.e., stomatal) resistance (in s/m).
|| [../radiation_parameters#min_irrf_value min_irrf_value] || rrtmg || R || 1E-6 || Minimum potential irradiance factor value for raytracing. 
|| [../agent_parameters#min_nr_agent min_nr_agent] || agt || I ||2|| Minimum number of agents for which memory is allocated at every grid cell.
|| [../land_surface_parameters#min_soil_resistance min_soil_resistance] || lsm || R || 50.0 || Minimum soil resistance (in s/m). 
|| [../initialization_parameters#mixing_length_1d mixing_length_1d] || ini || C*20 || 'blackadar' || Mixing length used in the 1d-model. 
|| [../chemistry_parameters#mode_emis mode_emis] || chem || C*80 || 'PARAMETERIZED' ||  Mode of chemistry emissions (Options: 'PARAMETERIZED', 'DEFAULT', 'PREPROCESSED'). '''Obsolete, use emiss_lod instead'''
|| [../initialization_parameters#momentum_advec momentum_advec] || ini || C*10 || 'ws-scheme' || Advection scheme to be used for the momentum equations.
|| [../radiation_parameters#mrt_geom mrt_geom] || rrtmg || I || 1 || Method for MRT direction weights simulating a sphere or a human body.
|| [../radiation_parameters#mrt_geom_params mrt_geom_params] || rrtmg || R(2) || 0.12, 0.88 || Parameters of selected weighting method.
|| [../radiation_parameters#mrt_include_sw mrt_include_sw] || rrtmg || L || .T. || Parameter to include SW radiation into the mean radiant temperature (MRT) calculation.
|| [../radiation_parameters#mrt_nlevels mrt_nlevels] || rrtmg || I || 0 || Number of vertical boxes above surface for which to calculate mean radiant temperature (MRT).
|| [../radiation_parameters#mrt_skip_roof mrt_skip_roof] || rrtmg || L || .T. || Parameter to skip calculating mean radiant temperature (MRT) above the roof surfaces.
|| [../agent_parameters#multi_agent_system_end multi_agent_system_end] || agt || R ||9999999.9|| Simulation time at which the multi agent system will stop excuting (in s).
|| [../agent_parameters#multi_agent_system_start multi_agent_system_start] || agt || R ||0.0|| Simulation time at which the multi agent system will start excuting (in s).
|| [../chemistry_parameters#my_steps my_steps] || chem || I(50) || 0 ||  List of fixed timesteps.
|| [../wind_turbine_parameters#n_airfoils n_airfoils] || wtm || I ||8|| Number of airfoils of the used turbine model. 
|| [../salsa_parameters#n_lognorm n_lognorm] [=#n] || salsa || R(7) || 1.04E11, 3.23E10, 5.4E6, 0.0, 0.0, 0.0, 0.0 || The total aerosol number concentration per aerosol mode (in m^-3^). 
|| [../wind_turbine_parameters#n_turbines n_turbines] || wtm || I ||1|| Number of the turbines to be included. Maximum is 100.
|| [../land_surface_parameters#n_vangenuchten n_vangenuchten] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Value of the coefficient n for the calculation of the hydraulic conductivity of soil in the parametrization after Van Genuchten. 
|| [../particle_parameters#na na] || lpm || R(3) || 100.0 || Parameters of initial aerosol spectrum. 
|| [../bulk_cloud_parameters#na_init na_init] || bulkc || R || 100.0E6 || Background dry aerosol concentration. 
|| [../wind_turbine_parameters#nacelle_radius nacelle_radius] || wtm || R(100) || 0.0 || Radius of the nacelle for each turbine (in m). This parameter has to be non-zero if the nacelle should be included. 
|| [../salsa_parameters#nbin nbin] || salsa || I(2) || 3, 7 || Number of aerosol size bins per subrange. 
|| [../bulk_cloud_parameters#nc_const nc_const] || bulkc || R || 70.0E6 || Fixed cloud droplet number density (in 1/m3). 
|| [../chemistry_parameters#nesting_chem nesting_chem] || chem || L || .TRUE. || Parameter to switch off self-nesting for chemistry variables.
|| [../nesting_parameters#nesting_datatransfer_mode nesting_datatransfer_mode] || nest || C*7 || 'mixed' || Type of nesting data transfer mode. 
|| [../nesting_parameters#nesting_mode nesting_mode] || nest || C*7 || 'two-way' || Type of nesting mode.
|| [../chemistry_parameters#nesting_offline_chem nesting_offline_chem] || chem || L || .TRUE. || Parameter to switch off offline-nesting for chemistry variables.
|| [../salsa_parameters#nesting_offline_salsa nesting_offline_salsa] || salsa || L || .T. || Parameter to switch off offline nesting for salsa variables.
|| [../salsa_parameters#nesting_salsa nesting_salsa] || salsa || L || .T. || Parameter to switch off self-nesting for salsa variables.  
|| [../radiation_parameters#net_radiation net_radiation] || rrtmg || R || 0.0 || Net radiation at the surface (in W/m^2). 
|| [../runtime_parameters#netcdf_data_format netcdf_data_format] || run || I ||2|| Data format for netCDF files. 
|| [../runtime_parameters#netcdf_deflate netcdf_deflate] || run || I ||0|| Data compression level for NetCDF4/HDF5 format. 
|| [../initialization_parameters#netcdf_precision netcdf_precision] || ini || C*20(10) || single precision for \\ all output quantities || Defines the accuracy of the netCDF output. 
|| [../initialization_parameters#neutral neutral] || ini || L || .F. || Parameter to switch off calculation of temperature equation. 
|| [../salsa_parameters#nf2a nf2a] || salsa || R || 1.0 || The number fraction allocated to subrange 2a.
|| [../initialization_parameters#ngsrb ngsrb] || ini || I ||2|| Number of Gauss-Seidel iterations to be carried out on each grid level of the multigrid Poisson solver. 
|| [../salsa_parameters#nh3_init nh3_init] || salsa || R || 1.0 || Initial number concentration (in m^-3^) of gaseous ammonia NH3 (g). 
|| [../salsa_parameters#nj3 nj3] || salsa || I || 1 || Parametrisation for calculating the apparent formation rate of 3 nm sized aerosol particles (J,,3,,, in # s^-1^). 
|| [../salsa_parameters#nlcnd nlcnd] || salsa || L || .F. || Parameter to switch on the condensation of gaseous compounds on aerosol particles. 
|| [../salsa_parameters#nlcndgas  nlcndgas] || salsa || L || .F. || Parameter to switch on the condensation of gaseous compounds, excluding water vapour, on aerosol particles. 
|| [../salsa_parameters#nlcndgash2oae nlcndgash2oae] || salsa || L || .F. || Parameter to switch on the condensation of water vapour on aerosol particles. 
|| [../salsa_parameters#nlcoag nlcoag] || salsa || L || .F. || Parameter to switch on the coagulation of aerosol particles. 
|| [../salsa_parameters#nldepo nldepo] || salsa || L || .F. || Parameter to switch of the dry deposition and sedimentation of aerosol particles.
|| [../salsa_parameters#nldepo_pcm nldepo_pcm] || salsa || L || .F. || Parameter to switch on aerosol dry deposition on resolved scale vegetation.
|| [../salsa_parameters#nldepo_surf nldepo_surf] || salsa || L || .F. || Parameter to switch aerosol dry deposition on topography elements (ground, wall, roofs).
|| [../salsa_parameters#nldistupdate nldistupdate] || salsa || L || .T. || Parameter to switch on the aerosol number size distribution update switch. 
|| [../runtime_parameters#normalizing_region normalizing_region] || run || I ||0|| Determines the subdomain from which the normalization quantities are calculated. 
|| [../runtime_parameters#npex npex] || run || I || no default value || Number of processors along x-direction of the virtual processor net. 
|| [../runtime_parameters#npey npey] || run || I || no default value || Number of processors along y-direction of the virtual processor net.
|| [../radiation_parameters#nrefsteps nrefsteps] || rrtmg || I || 3 || Number of reflection steps to be performed inside RTM for the reflected short- and long-wave radiation between mutually visible surfaces. 
|| [../salsa_parameters#nsnucl nsnucl] || salsa || I ||0|| The nucleation scheme applied. 
|| [../initialization_parameters#nsor nsor] || run || I ||20|| Number of iterations to be used with the SOR-scheme. 
|| [../initialization_parameters#nsor_ini nsor_ini] || ini || I ||100|| Initial number of iterations with the SOR algorithm. 
|| [../initialization_parameters#nudging nudging] || ini || L || .F. || Parameter to switch on nudging with data from larger scale models or from measurements.
|| [../particle_parameters#number_concentration number_concentration] || lpm || R || -1.0 || Initial particle number concentration. 
|| [../agent_parameters#number_of_agent_groups number_of_agent_groups] || agt || I ||1|| Number of agent groups.
|| [../particle_parameters#number_of_output_particles number_of_output_particles] || lpm || I || 0 || 
|| [../particle_parameters#number_of_particle_groups number_of] \\ [../particle_parameters#number_of_particle_groups _particle_groups] || lpm || I ||1|| Number of particle groups to be used. 
|| [../particle_parameters#number_particles_per_gridbox number_particles] \\ [../particle_parameters#number_particles_per_gridbox _per_gridbox] || lpm || I || -1 || Number of created particles per gridbox. 
|| [../initialization_parameters#nx nx] || ini || I || no default value || Number of grid points in x-direction. 
|| [../initialization_parameters#ny ny] || ini || I || no default value || Number of grid points in y-direction. 
|| [../initialization_parameters#nz nz] || ini || I || no default value || Number of grid points in z-direction. 
|| [../runtime_parameters#nz_do3d nz_do3d] || ini || I || nz + 1 || Limits the output of 3d volume data along the vertical direction (grid point index k). 
|| [../salsa_parameters#ocnv_init ocnv_init] [=#o] || salsa || R || 1.0 || Initial number concentration (in m^-3^) of gaseous non-volatile organic compounds. 
|| [../salsa_parameters#ocsv_init ocsv_init] || salsa || R || 1.0 || Initial number concentration (in m^-3^) of gaseous semi-volatile organic compounds.
|| [../virtual_measurement_parameters#off_pr off_pr] || vmm || I || 1 || Number of surrounding grid points (in horizontal direction) around the original measurement location where variables shall be sampled (for profile measurements).
|| [../virtual_measurement_parameters#off_pr_z off_pr_z] || vmm || I || 0 || Number of surrounding grid points (in vertical direction) around the original measurement location where variables shall be sampled (for profile measurements). 
|| [../virtual_measurement_parameters#off_tr off_tr] || vmm || I || 1 || Number of surrounding grid points (in horizontal direction) around the original measurement location where variables shall be sampled (for trajectory measurements).
|| [../virtual_measurement_parameters#off_tr_z off_tr_z] || vmm || I || 1 || Number of surrounding grid points (in vertical direction) around the original measurement location where variables shall be sampled (for trajectory measurements).
|| [../virtual_measurement_parameters#off_ts off_ts] || vmm || I || 1 || Number of surrounding grid points (in horizontal direction) around the original measurement location where variables shall be sampled (for stationary timeseries measurements).
|| [../virtual_measurement_parameters#off_ts_z off_ts_z] || vmm || I || 50 || Number of surrounding grid points (in vertical direction) around the original measurement location where variables shall be sampled (for stationary timeseries measurements).
|| [../initialization_parameters#omega omega] || ini || R || 7.29212E-5 || Angular velocity of the rotating system (in rad s^-1^). 
|| [../initialization_parameters#omega_sor omega_sor] || ini || R || 1.8 || Convergence factor to be used with the SOR-scheme. 
|| [../biometeorology_parameters#orientation_angle orientation_angle] || biomet || R || 0.0 || Orientation angle of front/face of the human model.
|| [../particle_parameters#oversize oversize] || lpm || R || 100.0 ||  
|| [../initialization_parameters#outflow_source_plane outflow_source] \\ [../initialization_parameters#outflow_source_plane _plane] || ini || R || - || Horizontal position (in m) of the vertical source plane from where instantaneous values of u, v, w, pt, q, s, and e are copied to the outflow boundary. 
|| [../particle_parameters#particles_per_point particles_per_point] [=#p] || lpm || I ||1|| Number of particles to be started per point. 
|| [../particle_parameters#particle_advection_interpolation particle_advection] \\ [../particle_parameters#particle_advection_interpolation _interpolation] || lpm || c*25 || 'trilinear' || Method for interpolating velocities to particle position.
|| [../particle_parameters#particle_advection_start particle_advection] \\ [../particle_parameters#particle_advection_start _start] || lpm || R || 0.0 || Time of the first release of particles (in s).  
|| [../particle_parameters#particle_maximum_age particle_maximum] \\ [../particle_parameters#particle_maximum_age _age] || lpm || R || 9999999.9 || Maximum allowed age of particles (in s). 
|| [../initialization_parameters#passive_scalar passive_scalar] || ini || L || .F. || Parameter to switch on the prognostic equation for a passive scalar. 
|| [../land_surface_parameters#pavement_depth_level pavement_depth_level] || lsm || I || depending on [../land_surface_parameters#pavement_type pavement_type] || Extend of the depth of the pavement in grid levels below the surface. 
|| [../land_surface_parameters#pavement_heat_capacity pavement_heat_capacity] || lsm || R || depending on [../land_surface_parameters#pavement_type pavement_type] || Heat capacity of the pavement (J/K/m³).
|| [../land_surface_parameters#pavement_heat_conduct pavement_heat_conduct] || lsm || R || depending on [../land_surface_parameters#pavement_type pavement_type] || Thermal conductivity of the pavement (W/m/K).
|| [../land_surface_parameters#pavement_type pavement_type] || lsm || I || 1 || Pavement type classification according to the following list and which loosely follows the Open Street Map classification.
|| [../plant_canopy_parameters#pch_index pch_index] || pcm || I ||0|| Grid point index (w-grid) of the upper boundary of the plant canopy layer. 
|| [../particle_parameters#pdx pdx] || lpm || R(10) || 10*dx || Distance along x between particles within a particle source (in m). 
|| [../particle_parameters#pdy pdy] || lpm || R(10) || 10*dy || Distance along y between particles within a particle source (in m). 
|| [../particle_parameters#pdz pdz] || lpm || R(10) || 10*(zu(2) - zu(1)) || Distance along z between particles within a particle source (in m). 
|| [../chemistry_parameters#photolysis_scheme photolysis_scheme] || chem || C*10 || 'simple' ||  Photolysis scheme.
|| [../wind_turbine_parameters#pitch_angle pitch_angle] || wtm || R(100) || 0.0 || Pitch angle for a constant pitch angle (in degrees). 
|| [../wind_turbine_parameters#pitch_control pitch_control] || wtm || L || .F. || Parameter to switch on the pitch control. 
|| [../wind_turbine_parameters#pitch_rate pitch_rate] || wtm || R || 8.0 || Maximum pitch rate (in degree/s). 
|| [../plant_canopy_parameters#plant_canopy_transpiration plant_canopy_transpiration] || pcm || L || .F. || Enables calculation of evapotranspiration and corresponding latent heat flux of the resolved plant canopy which utilizes SW and LW radiation fluxes calculated in RTM.
|| [../radiation_parameters#plant_lw_interact plant_lw_interact] || rrtmg || L || .T. || The parameter steers if plant canopy interacts with LW radiation. 
|| [../initialization_parameters#prandtl_number prandtl_number] || ini || R || 1.0 || Ratio of the eddy diffusivities for momentum and heat (K,,m,,/K,,h,,). 
|| [../runtime_parameters#precipitation_amount_interval precipitation_amount] \\ [../runtime_parameters#precipitation_amount_interval _interval] || run || R || value of [../runtime_parameters#dt_do2d_xy dt_do2d_xy] || Temporal interval for which the precipitation amount (in mm) shall be calculated and output (in s). 
|| [../runtime_parameters#profile_columns profile_columns] || run || I ||3|| Number of coordinate systems to be plotted in one row by plot software '''palmplot'''. 
|| [../runtime_parameters#profile_rows profile_rows] || run || I ||2|| Number of rows of coordinate systems to be plotted on one page by plot software '''palmplot'''. 
|| [../particle_parameters#psb psb] || lpm || R(10) || 10*zu(nz/2) || Bottom edge of a particle source (in m). 
|| [../particle_parameters#psl psl] || lpm || R(10) || 10*0.0 || Left edge of a particle source (in m). 
|| [../particle_parameters#psn psn] || lpm || R(10) || 10*(ny*dy) || Rear ("north") edge of a particle source (in m). 
|| [../initialization_parameters#psolver psolver] || ini || C*10 || 'poisfft' || Scheme to be used to solve the Poisson equation for the perturbation pressure. 
|| [../particle_parameters#psr psr] || lpm || R(10) || 10*(nx*dx) || Right edge of a particle source (in m). 
|| [../particle_parameters#pss pss] || lpm || R(10) || 10*0.0 || Front ("south") edge of a particle source (in m). 
|| [../particle_parameters#pst pst] || lpm || R(10) || 10*zu(nz/2) || Top edge of a particle source (in m). 
|| [../initialization_parameters#pt_damping_factor pt_damping_factor] || ini || R || 0.0 || Factor for damping the potential temperature. 
|| [../initialization_parameters#pt_damping_width pt_damping_width] || ini || R || 0.0 || Width of the damping domain of the potential temperature (in m). 
|| [../initialization_parameters#pt_reference pt_reference] || ini || R || value of [../initialization_parameters#pt_surface pt_surface] || Reference temperature to be used in the buoyancy term (in K). 
|| [../initialization_parameters#pt_surface pt_surface] || ini || R || 300.0 || Surface potential temperature (in K). 
|| [../initialization_parameters#pt_surface_initial_change pt_surface_initial] \\ [../initialization_parameters#pt_surface_initial_change _change] || ini || R || 0.0 || Change in surface temperature to be made at the beginning of the 3d run (in K). 
|| [../initialization_parameters#pt_vertical_gradient pt_vertical_gradient] || ini || R(10) || 10*0.0 || Temperature gradient(s) of the initial temperature profile (in K / 100 m). 
|| [../initialization_parameters#pt_vertical_gradient_level pt_vertical_gradient] \\ [../initialization_parameters#pt_vertical_gradient_level _level] || ini || R(10) || 10*0.0 || Height level above which the temperature gradient defined by [../initialization_parameters#pt_vertical_gradient pt_vertical_gradient] is effective (in m).
|| [../particle_parameters#pts_id_file pts_id_file] || lpm || C*64  ||  || 
|| [../particle_parameters#pts_increment pts_increment] || lpm || I || 1 ||
|| [../particle_parameters#pts_percentage pts_percentage] || lpm || R || 100.0 ||
|| [../initialization_parameters#q_surface q_surface] [=#q] || ini || R || 0.0 || Surface water vapor / total water mixing ratio (kg/kg). 
|| [../initialization_parameters#q_surface_initial_change q_surface_initial] \\ [../initialization_parameters#q_surface_initial_change _change] || ini || R || 0.0 || Change in surface water vapor / total water mixing ratio to be made at the beginning of the 3d run (kg/kg). 
|| [../initialization_parameters#q_vertical_gradient q_vertical_gradient] || ini || R(10) || 10*0.0 || Humidity gradient(s) of the initial humidity profile (in 1/100 m). 
|| [../initialization_parameters#q_vertical_gradient_level q_vertical_gradient] \\ [../initialization_parameters#q_vertical_gradient_level _level] || ini || R(10) || 10*0.0 || Height level above which the humidity gradient defined by [../initialization_parameters#q_vertical_gradient q_vertical_gradient] is effective (in m). 
|| [../radiation_parameters#rad_angular_discretization rad_angular_discretization] || rrtmg || L || .T. || Parameter to enable using of the angular discretization for calculation of view factors for reflected radiation.
|| [../radiation_parameters#radiation_interactions_on radiation_interactions_on] || rrtmg || L || .T. || The setting of this parameter to .FALSE. forces not to activate RTM even if vertical urban/land surfaces or trees exist in the domain.
|| [../radiation_parameters#radiation_scheme radiation_scheme] || rrtmg || C*10 || 'clear-sky' || Radiation scheme to be used. 
|| [../particle_parameters#radius radius] || lpm || R(10) || 0.0, 9* \\ 9999999.9 || Particle radius (in m). 
|| [../agent_parameters#radius_agent radius_agent] || agt || R ||0.25|| Quasi-solid core of agents.
|| [../particle_parameters#radius_classes radius_classes] || lpm || I ||20|| Number of radius classes to be used in the collision efficiency table.
|| [../particle_parameters#radius_merge radius_merge] || lpm || R || 0.1E-6 || Radius threshold for merging of super droplets.
|| [../particle_parameters#radius_split radius_split] || lpm || R || 40E-6 || Radius threshold for splitting of super droplets.
|| [../initialization_parameters#random_generator random_generator] || ini || C*20 || 'random-parallel' || Random number generator to be used for creating uniformly distributed random numbers. 
|| [../initialization_parameters#random_heatflux random_heatflux] || ini || L || .F. || Parameter to impose random perturbations on the internal two-dimensional near surface heat flux field ''shf.'' 
|| [../particle_parameters#random_start_position random_start_position] || lpm || L || .F. || Initial position of the particles is varied randomly within certain limits. 
|| [../agent_parameters#random_start_position_agents random_start_position] \\ [../agent_parameters#random_start_position_agents _agents] || agt || L ||.T.|| Initial position of the particles is varied randomly within certain limits. 
|| [../virtual_flight_parameters#rate_of_climb rate_of_climb] || vfm || R(100) ||100*0.0|| Vertical speed of the aircraft in meter per second. 
|| [../initialization_parameters#rayleigh_damping_factor rayleigh_damping] \\ [../initialization_parameters#rayleigh_damping_factor _factor] || ini || R || 0.0 || Factor for Rayleigh damping. 
|| [../initialization_parameters#rayleigh_damping_height rayleigh_damping] \\ [../initialization_parameters#rayleigh_damping_height _height] || ini || R || 2/3*zu(nzt),\\ (ocean: 2/3*zu(nzb)) || Height where the Rayleigh damping starts (in m).
|| [../radiation_parameters#raytrace_discrete_azims raytrace_discrete_azims] || rrtmg || I || 80 || Number of horizontal discrete directions (azimuths) for angular discretization used to calculate the sky view factors, surface-surface view factor, and direct solar visibility for all surfaces.
|| [../radiation_parameters#raytrace_discrete_elevs raytrace_discrete_elevs] || rrtmg || I || 40 || Number of vertical descrete elevations for angular discretization used to calculate the sky view factors, surface-surface view factor, and direct solar visibility for all surfaces.
|| [../radiation_parameters#raytrace_mpi_rma raytrace_mpi_rma] || rrtmg || L || .T. || Parameter to enable the one-sided MPI communication to access LAD array and grid surfaces for raytracing.  
|| [../chemistry_parameters#rcntrl rcntrl] || chem || R(20) || 0.0 ||  Steering of the chemistry solver. 
|| [../agent_parameters#read_agents_from_restartfile read_agents_from] \\ [../agent_parameters#read_agents_from_restartfile _restartfile] || agt || L ||.F.|| Flag to read agent data from restart file.
|| [../particle_parameters#read_particles_from_restartfile read_particles_from] \\ [../particle_parameters#read_particles_from_restartfile _restartfile] || lpm || L || .T. || Read particle data from the previous run. 
|| [../initialization_parameters#recycling_width recycling_width] || ini || R || 9999999.9 || Distance of the recycling plane from the inflow boundary (in m). 
|| [../initialization_parameters#reference_state reference_state] || ini || C*20 || '' 'initial_profile' '' || Defines what is used as reference state in the buoyancy term. 
|| [../user_parameters#region region] || user || C*40(0:9) || 'total domain' || Name(s) of the subdomain(s) defined by the user. 
|| [../wind_turbine_parameters#region_15_min region_15_min] || wtm || R ||70.16224|| Lower generator speed boundary of region 1.5 (in rad/s). 
|| [../wind_turbine_parameters#region_2_min region_2_min] || wtm || R ||91.21091|| Lower generator speed boundary of region 2 [rad/s]. 
|| [../wind_turbine_parameters#region_2_slope region_2_slope] || wtm || R ||2.332287|| Slope constant for region 2. 
|| [../salsa_parameters#reglim reglim]  || salsa || R(3) || 3.0E-9, 5.0E-8, 1.0E-5  || Aerosol diameter limits for the subranges (in m) in the following order: lower limit of 1, upper limit of 1 and lower limit of 2, upper limit of 2. 
|| [../agent_parameters#repuls_agent repuls_agent] || agt || R ||1.5|| Magnitude of the repulsive force agents exert on each other (in m^2^ s^-2^).
|| [../agent_parameters#repuls_wall repuls_wall] || agt || R ||7.0|| Magnitude of the repulsive force obstacles exert on agents (in m^2^ s^-2^).
|| [../initialization_parameters#residual_limit residual_limit] || ini || R || 1.0E-4 || Largest residual permitted for the multigrid scheme (in s^-2^m^-3^). 
|| [../land_surface_parameters#residual_moisture residual_moisture] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Residual soil moisture content (in m³/m³). ||
|| [../initialization_parameters#restart_data_format restart_data_format] || ini || C*20 || 'fortran_binary' || Binary format of the input and output restart files. ||
|| [../initialization_parameters#restart_data_format_input restart_data_format_input] || ini || C*20 || value of [../runtime_parameters#restart_data_format restart_data_format] || Binary format of the input restart file. ||
|| [../initialization_parameters#restart_data_format_output restart_data_format_output] || ini || C*20 || value of [../runtime_parameters#restart_data_format restart_data_format] || Binary format of the output restart file. ||
|| [../runtime_parameters#restart_time restart_time] || run || R || 9999999.9 || Simulated time after which a restart run is to be carried out (in s). 
|| [../particle_parameters#rm rm] || lpm || R(3) || 0.05E-6 || Parameters of initial aerosol spectrum.
|| [../urban_surface_parameters#roof_category roof_category] || usm || I || 2 || Roof category.
|| [../urban_surface_parameters#roof_inner_temperature roof_inner] \\ [../urban_surface_parameters#roof_inner_temperature _temperature] || usm || R || 295.0 || Inner temperature of roofs.
|| [../land_surface_parameters#root_fraction root_fraction] || lsm || R(21) || 9999999.9 || Root distribution over the four soil layers. 
|| [../wind_turbine_parameters#rotor_inertia rotor_inertia] || wtm || R || 34784179.0 || Inertia of the rotor (in kg/m^2). 
|| [../wind_turbine_parameters#rotor_radius rotor_radius] || wtm || R(100) ||63.0|| Radius of the rotor (in m). 
|| [../wind_turbine_parameters#rotor_speed rotor_speed] || wtm || R(100) || 0.9 || Initial rotational speed for each turbine (in rad s^-1^). 
|| [../initialization_parameters#roughness_length roughness_length] || ini || R || 0.1 || Roughness length (in m). 
|| [../initialization_parameters#s_surface s_surface] [=#s] || ini || R || 0.0 || Surface value of the passive scalar (in kg m^-3^ or ppm). 
|| [../initialization_parameters#s_surface_initial_change s_surface_initial] \\ [../initialization_parameters#s_surface_initial_change _change] || ini || R || 0.0 || Change in surface scalar concentration to be made at the beginning of the 3d run (in kg m^-3^ or ppm). 
|| [../initialization_parameters#s_vertical_gradient s_vertical_gradient] || ini || R(10) || 10*0.0 || Scalar concentration gradient(s) of the initial scalar concentration profile (in (kg m^-3^ or ppm) / 100 m). 
|| [../initialization_parameters#s_vertical_gradient_level s_vertical_gradient] \\ [../initialization_parameters#s_vertical_gradient_level _level] || ini || R(10) || 10*0.0 || Height level above which the scalar gradient defined by [../initialization_parameters#s_vertical_gradient s_vertical_gradient] is effective (in m). 
|| [../ocean_parameters#salinity salinity] || ocean || L || .T. || Parameter to switch on/off calculation of salinity equation. 
|| [../salsa_parameters#salsa_emission_mode salsa_emission_mode] || salsa || C(20) || 'no_emission'  || Source mode for aerosol and gaseous emissions. 
|| [../ocean_parameters#sa_surface sa_surface] || ocean || R || 35.0 || Surface salinity (in psu). 
|| [../ocean_parameters#sa_vertical_gradient sa_vertical_gradient] || ocean || R(10) || 10*0.0 || Salinity gradient(s) of the initial salinity profile (in psu / 100 m). 
|| [../ocean_parameters#sa_vertical_gradient_level sa_vertical_gradient] \\ [../initialization_parameters#sa_vertical_gradient_level _level] || ocean || R(10) || 10*0.0 || Height level above which the salinity gradient defined by [../ocean_parameters#sa_vertical_gradient sa_vertical_gradient] is effective (in m). 
|| [../land_surface_parameters#saturation_moisture saturation_moisture] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Soil moisture at saturation (in m³/m³). 
|| [../initialization_parameters#scalar_advec scalar_advec] || ini || C*10 || 'ws-scheme' || Advection scheme to be used for the scalar quantities. 
|| [../initialization_parameters#scalar_rayleigh_damping scalar_rayleigh] \\ [../initialization_parameters#scalar_rayleigh_damping _damping] || ini || L || .T. || Application of Rayleigh damping to scalars. 
|| [../agent_parameters#scan_radius_agent scan_radius_agent] || agt || R ||3.0|| Radius around the agent in which it scans for obstacles (in m).
|| [../salsa_parameters#season_z01 season_z01] || salsa || I || 1 || Modelling season if the dry deposition parametrisation by Zhang et al. 2001 is applied. 
|| [../runtime_parameters#section_xy section_xy] || run || I(100) || no section || Position of cross section(s) for output of 2d horizontal cross sections (grid point index k). 
|| [../runtime_parameters#section_xz section_xz] || run || I(100) || no section || Position of cross section(s) for output of 2d (xz) vertical cross sections (grid point index j). 
|| [../runtime_parameters#section_yz section_yz] || run || I(100) || no section || Position of cross section(s) for output of 2d (yz) vertical cross sections (grid point index i). 
|| [../particle_parameters#seed_follows_topography seed_follows_topography] || lpm || L || .F. || Heights of initial particles are interpreted relative to the given topography. 
|| [../wind_turbine_parameters#segment_length_tangential segment_length_tangential] || wtm || R || 1.0 || Length of each rotor segment the rotor area is divided into, in tangential direction, as factor of the grid spacing. 
|| [../wind_turbine_parameters#segment_width_radial segment_width_radial] || wtm || R || 0.5 || Length of each rotor segment the rotor area is divided into, in radial direction, as factor of the grid spacing. 
|| [../chemistry_parameters#side_street_id side_street_id] || chem / \\ salsa || I(99) || 0 ||  Index for identifying SIDE streets following street type classes from !OpenStreetMap. 
|| [../bulk_cloud_parameters#sigma_bulk sigma_bulk] || bulkc || R || 2.0 || The dispersion of the dry aerosol spectrum. 
|| [../agent_parameters#sigma_rep_agent sigma_rep_agent] || agt || R ||0.3|| Width of agent repulsive field (in m).
|| [../agent_parameters#sigma_rep_wall sigma_rep_wall] || agt || R ||0.1|| Width of obstacle repulsive field (in m).
|| [../salsa_parameters#sigmag sigmag] || salsa || R(7) || 1.8, 2.16, 2.21, 2.0, 2.0, 2.0, 2.0   || The standard deviation of the log-normal aerosol number size distribution per aerosol mode.
|| [../runtime_parameters#skip_time_data_output skip_time_data_output] || run || R || 0.0 || No data output before this interval has passed (in s). 
|| [../runtime_parameters#skip_time_data_output_av skip_time_data] \\ [../runtime_parameters#skip_time_data_output_av _output_av] || run || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of temporally averaged 2d/3d data before this interval has passed (in s). 
|| [../land_surface_parameters#skip_time_do_lsm skip_time_do_lsm] || lsm || R || 0.0 || Time after which the land surface model is switched on. 
|| [../radiation_parameters#skip_time_do_radiation skip_time_do_radiation] || rrtmg || R || 0.0 || Time after which the radiation model is switched on. 
|| [../salsa_parameters#skip_time_do_salsa skip_time_do_salsa] || salsa || R || 0.0 || Time after which SALSA is switched on. 
|| [../runtime_parameters#skip_time_domask skip_time_domask] || run || R \\ (max_masks) || max_masks*0.0 || No output of masked data before this interval has passed (in s). 
|| [../runtime_parameters#skip_time_dopr skip_time_dopr] || run || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of vertical profile data before this interval has passed (in s). 
|| [../spectra_parameters#skip_time_dosp skip_time_dosp] || spec || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of spectra data before this interval has passed (in s).
|| [../surface_data_output_parameters#skip_time_dosurf skip_time_dosurf] || surf || R || 0.0 || No surface data output before this interval has passed (in s).
|| [../surface_data_output_parameters#skip_time_dosurf_av skip_time_dosurf_av] || surf || R || 0.0 || No surfave data output of averaged variables before this interval has passed (in s).
|| [../runtime_parameters#skip_time_do2d_xy skip_time_do2d_xy] || run || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of instantaneous horizontal cross section data before this interval has passed (in s). 
|| [../runtime_parameters#skip_time_do2d_xz skip_time_do2d_xz] || run || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of instantaneous vertical (xz) cross section data before this interval has passed (in s). 
|| [../runtime_parameters#skip_time_do2d_yz skip_time_do2d_yz] || run || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of instantaneous vertical (yz) cross section data before this interval has passed (in s). 
|| [../runtime_parameters#skip_time_do3d skip_time_do3d] || run || R || value of [../runtime_parameters#skip_time_data_output skip_time] \\ [../runtime_parameters#skip_time_data_output _data_output] || No output of instantaneous 3d volume data before this interval has passed (in s).
|| [../wind_turbine_parameters#smearing_kernel_size smearing_kernel_size] || wtm || R || 2.0 || Size of the smearing kernel given as multiples of the grid spacing [../initialization_parameters#dx dx].
|| [../bulk_cloud_parameters#snow snow] || bulkc || L || .F. || Parameter to turn on prognostic equations of mixing ratio and number concentration for snow aggregates. 
|| [../urban_surface_parameters#soil_inner_temperature soil_inner] \\ [../urban_surface_parameters#soil_inner_temperature _temperature] || usm || R || 288.0 ||Deep soil temperature.
|| [../land_surface_parameters#soil_moisture soil_moisture] || lsm || R(21) || 21*0.0 || Soil moisture distribution over the four soil layers.
|| [../land_surface_parameters#soil_temperature soil_temperature] || lsm || R(21) || 21*9999999.9 || Soil temperature distribution over the four soil layers (in K). 
|| [../land_surface_parameters#soil_type soil_type] || lsm || I ||3|| Soil type to be used in the soil model. 
|| [../spectra_parameters#spectra_direction spectra_direction] || spec || C*2(10) || 10*' ' || Direction(s) along which spectra are to be calculated. 
|| [../virtual_flight_parameters#speed_agl speed_agl] || vfm || R(100) ||100*25.0|| Horizontal speed of the aircraft above ground level in meter per second. 
|| [../wind_turbine_parameters#speed_control speed_control] || wtm || L || .F. || Parameter to switch on the speed control. 
|| [../initialization_parameters#spinup_pt_amplitude spinup_pt_amplitude] || ini || R || 0.0 || Representative amplitude of the diurnal near-surface temperature variation during the spinup phase. 
|| [../initialization_parameters#spinup_pt_mean spinup_pt_mean] || ini || R || value of [../initialization_parameters#pt_surface pt_surface] || Mean near-surface air temperature during the spinup phase (see spinup_time). 
|| [../initialization_parameters#spinup_time spinup_time] || ini || R || 0.0 || Parameter for steering of the spinup time.
|| [../particle_parameters#splitting splitting] || lpm || L || .F. || Switch on/off the splitting algorithm for cloud droplets (if cloud_droplets=.T.). 
|| [../particle_parameters#splitting_factor splitting_factor] || lpm || I || 2 || This parameter is used for splitting_mode = 'const'. It defines the number into how many partiles one particle is divided.
|| [../particle_parameters#splitting_factor_max splitting_factor_max] || lpm || I || 5 || This parameter restricts the splitting_factor to an upper bound.
|| [../particle_parameters#splitting_function splitting_function] || lpm || C || 'gamma' || Parameter to steer splitting algorithm. 
|| [../particle_parameters#splitting_mode splitting_mode] || lpm || C || 'const' || Parameter to steer splitting algorithm.
|| [../bulk_cloud_parameters#start_ice_microphysics start_ice_microphysics] || bulkc || R || 0.0 || Time in seconds after ice microphysicsal processes are calculated.
|| [../initialization_parameters#statistic_regions statistic_regions] || ini || I ||0|| Number of additional user-defined subdomains for which statistical analysis and corresponding output (profiles, time series) shall be made. 
|| [../particle_parameters#step_dealloc step_dealloc] || lpm || I || 100 || Number of timesteps after which particle memory is deallocated.
|| [../agent_parameters#step_dealloc_mas step_dealloc_mas] || agt || I ||100|| Interval for memory reallocation.
|| [../ocean_parameters#stokes_waveheight stokes_waveheight] || ocean || R || 0.0 || Parameter to switch on and set the effects of Langmuir circulation in PALM's ocean mode.
|| [../ocean_parameters#stokes_wavelength stokes_wavelength] || ocean || R || 0.0 || Parameter to switch on and set the effects of Langmuir circulation in PALM's ocean mode.
|| [../initialization_parameters#subs_vertical_gradient subs_vertical_gradient] || ini || R(10) || 10*0.0 || Gradient(s) of the profile for the large scale subsidence/ascent velocity (in (m/s) / 100 m). 
|| [../initialization_parameters#subs_vertical_gradient_level subs_vertical_gradient] \\ [../initialization_parameters#subs_vertical_gradient_level _level] || ini || R(10) || 10*0.0 || Height level above which the gradient for the subsidence/ascent velocity defined by [../initialization_parameters#subs_vertical_gradient subs_vertical_gradient] is effective (in m). 
|| [../biometeorology_parameters#sun_in_south sun_in_south] || biomet || L || .F. || Azimuthal position of the sun.  
|| [../salsa_parameters#surface_aerosol_flux surface_aerosol_flux] || salsa || R(7) || 1.04e+11, 3.23E+10, 5.4E+6, 0.0, 0.0, 0.0, 0.0 || The total surface number flux per aerosol mode (in m^-2^s^-1^).
|| [../ocean_parameters#surface_cooling_spinup_time surface_cooling] \\ [../ocean_parameters#surface_cooling_spinup_time _spinup_time] || ocean || R || 999999.9 || Time (in s) after which the surface heat flux is switched off.
|| [../chemistry_parameters#surface_csflux surface_csflux] || chem || R(99) || 0.0 ||  Values of surface fluxes of chemistry emissions to be used in the PARAMETERIZED mode.
|| [../chemistry_parameters#surface_csflux_name surface_csflux_name] || chem || C*11(99) || 'novalue' ||  Names of chemical species which are emitted.
|| [../initialization_parameters#surface_heatflux surface_heatflux] || ini || R || no prescribed \\ heatflux || Kinematic sensible heat flux at the bottom surface (in K m/s). 
|| [../initialization_parameters#surface_pressure surface_pressure] || ini || R || 1013.25 || Atmospheric pressure at the surface (in hPa).
|| [../radiation_parameters#surface_reflections surface_reflections] || rrtmg || L || .T. || Parameter to switch off the surface-surface reflections in RTM.
|| [../initialization_parameters#surface_scalarflux surface_scalarflux] || ini || R || 999999.9 || Scalar flux at the surface (in kg m^-2^ s^-1^ or ppm m s^-1^).
|| [../land_surface_parameters#surface_type surface_type] || lsm || C*10 || 'netcdf' || Surface type classification.  
|| [../initialization_parameters#surface_waterflux surface_waterflux] || ini || R || 9999999.9 || Kinematic water flux near the surface (in m/s).
|| [../radiation_parameters#svfnorm_report_thresh svfnorm_report_thresh] || rrtmg || R || 1E21 || Thresholds for reporting of normalization factors in calculation of surface view factors to report. 
|| [../radiation_parameters#sw_radiation sw_radiation] || rrtmg || L || .T. || Parameter to switch on/off shortwave radiation. 
|| [../runtime_parameters#synchronous_exchange synchronous_exchange] || run || L || .F. || Defines how MPI handles the exchange of ghost points. 
|| [../agent_parameters#tau_accel_agent tau_accel_agent] [=#t] || agt || R ||0.5|| Relaxation time in social force model (in s).
|| [../runtime_parameters#termination_time_needed termination_time_needed] || run || R || 35.0 || CPU time needed for terminal actions at the end of a run in batch mode (in s). 
|| [../biometeorology_parameters#thermal_comfort thermal_comfort] || biomet || L || .F. || Switch the calculation of all three thermal comfort indices off (.F.) or on (.T.). 
|| [../wind_turbine_parameters#tilt_angle tilt_angle] || wtm || R || 0.0 || Rotor tilt_angle of the rotor plane (in degrees). 
|| [../chemistry_parameters#time_fac_type time_fac_type] || chem || C*80 || MDH ||  Type of time treatment for LOD 1 mode of the chem_emission module. 
|| [../wind_turbine_parameters#time_turbine_on time_turbine_on] || wtm || R || 0.0 || Simulation time at which the turbines are switched on. 
|| [../initialization_parameters#timestep_scheme timestep_scheme] || ini || C*20 || 'runge-kutta-3' || Time step scheme to be used for integration of the prognostic variables. 
|| [../wind_turbine_parameters#tip_loss_correction tip_loss_correction] || wtm || L || .F. || Parameter to switch on the tip loss correction.
|| [../surface_data_output_parameters#to_netcdf to_netcdf] || surf || L || .F. || Control parameter enabling surface data output to NetCDF. 
|| [../surface_data_output_parameters#to_vtk to_vtk] || surf || L || .F. || Control parameter enabling surface data output to VTK format. 
|| [../chemistry_parameters#top_csflux top_csflux] || chem || R(99) || 0.0 || 
|| [../initialization_parameters#top_heatflux top_heatflux] || ini || R || no prescribed \\ heatflux || Kinematic sensible heat flux at the top surface (in K m/s). 
|| [../initialization_parameters#top_momentumflux_u top_momentumflux_u] || ini || R || no prescribed momentumflux || Momentum flux along x at the top boundary (in m^2^/s^2^). 
|| [../initialization_parameters#top_momentumflux_v top_momentumflux_v] || ini || R || no prescribed momentumflux || Momentum flux along y at the top boundary (in m^2^/s^2^). 
|| [../ocean_parameters#top_salinityflux top_salinityflux] || ocean || R || no prescribed \\ salinityflux || Kinematic salinity flux at the top boundary, i.e. the sea surface (in psu m/s). 
|| [../initialization_parameters#top_scalarflux top_scalarflux] || ini || R || no prescribed \\ scalarflux || Scalar flux at the top surface (in kg m^-2^ s^-1^ or ppm m s^-1^). 
|| [../initialization_parameters#topography topography] || ini || C*40 || 'flat' || Topography mode. 
|| [../initialization_parameters#topography_grid_convention topography_grid] \\ [../initialization_parameters#topography_grid_convention _convention] || ini || C*11 || default depends on \\ value of [../initialization_parameters#topography topography] || Convention for defining the topography grid. 
|| [../wind_turbine_parameters#tower_cd tower_cd] || wtm || R(10000) || 1.2 ||Drag coefficient for each tower. This parameter needs to be specified for each turbine.
|| [../wind_turbine_parameters#tower_diameter tower_diameter] || wtm || R(10000) || 0.0 || Diameter of the tower of the wind turbine used below the rotor. This parameter has to be non-zero if a tower should be included. The parameter needs to be specified for every turbine separately. 
|| [../radiation_parameters#trace_fluxes_above trace_fluxes_above] || rrtmg || R || -1.0 || This parameter enables tracing of values of radiative fluxes in RTM.
|| [../initialization_parameters#transpose_compute_overlap transpose_compute] \\ [../initialization_parameters#transpose_compute_overlap _overlap] || ini || L || .F. || Parameter to switch on parallel execution of fft and transpositions (with MPI_ALLTOALL). 
|| [../initialization_parameters#tunnel_height tunnel_height] || ini || R || 9999999.9 || Height of outer-wall tunnel top. 
|| [../initialization_parameters#tunnel_length tunnel_length] || ini || R || 9999999.9 || Length of the tunnel. 
|| [../initialization_parameters#tunnel_width_x tunnel_width_x] || ini || R || 9999999.9 || Tunnel width along x-direction. 
|| [../initialization_parameters#tunnel_width_y tunnel_width_y] || ini || R || 9999999.9 || Tunnel width along y-direction. 
|| [../initialization_parameters#tunnel_wall_depth tunnel_wall_depth] || ini || R || max( dx, dy, dz ) || Depth of tunnel walls. 
|| [../initialization_parameters#turbulent_inflow turbulent_inflow] || ini || L || .F. || Generates a turbulent inflow at side boundaries using a turbulence recycling method. 
|| [../initialization_parameters#turbulent_outflow turbulent_outflow] || ini || L || .F. || Generates a turbulent outflow at side boundaries using a turbulence recycling method. 
|| [../biometeorology_parameters#turn_to_sun turn_to_sun] || biomet || L || .T. || Orientation of the front/face of the human model. 
|| [../initialization_parameters#u_bulk u_bulk] [=#u] || ini || R || 0.0 || u-component of the predefined bulk velocity (in m/s). 
|| [../initialization_parameters#u_profile u_profile] || ini || R(100) || 100 * 9999999.9 || Values of u-velocity component to be used as initial profile (in m/s). 
|| [../initialization_parameters#ug_surface ug_surface] || ini || R || 0.0 || u-component of the geostrophic wind at the surface (in m/s). 
|| [../initialization_parameters#ug_vertical_gradient ug_vertical_gradient] || ini || R(10) || 10*0.0 || Gradient(s) of the initial profile of the u-component of the geostrophic wind (in 1/100s). 
|| [../initialization_parameters#ug_vertical_gradient_level ug_vertical_gradient] \\ [../initialization_parameters#ug_vertical_gradient_level _level] || ini || R(10) || 10*0.0 || Height level above which the gradient defined by [../initialization_parameters#ug_vertical_gradient ug_vertical_gradient] is effective (in m). 
|| [../particle_parameters#unlimited_dimension unlimited_dimension] || lpm || L || .T. || 
|| [../radiation_parameters#unscheduled_radiation_calls unscheduled_radiation_calls] || rrtmg || L || .F. || Parameter to allow additional calls of the radiation code. 
|| [../initialization_parameters#use_free_convection_scaling use_free_convection] \\ [../initialization_parameters#use_free_convection_scaling _scaling] || ini || L || .F. || Parameter to switch on the use of the local free convection velocity scale. 
|| [../particle_parameters#use_sgs_for_particles use_sgs_for_particles] || lpm || L || .F. || Use subgrid-scale velocities for particle advection. 
|| [../initialization_parameters#use_subsidence_tendencies use_subsidence] \\ [../initialization_parameters#use_subsidence_tendencies _tendencies] || ini || L || .F. || Parameter to choose the calculation method of subsidence in case of runs with large scale forcing. 
|| [../initialization_parameters#use_surface_fluxes use_surface_fluxes] || ini || L || .F. || Parameter to steer the treatment of the subgrid-scale vertical fluxes within the diffusion terms at k=1 (bottom boundary). 
|| [../initialization_parameters#use_top_fluxes use_top_fluxes] || ini || L || .F. || Parameter to steer the treatment of the subgrid-scale vertical fluxes within the diffusion terms at k=nz (top boundary). 
|| [../initialization_parameters#use_ug_for_galilei_tr use_ug_for_galilei_tr] || ini || L || .T. || Switch to determine the translation velocity in case that a Galilean transformation is used. 
|| [../initialization_parameters#use_upstream_for_tke use_upstream] \\ [../initialization_parameters#use_upstream_for_tke _for_tke] || ini || L || .F. || Parameter to choose the advection/timestep scheme to be used for the subgrid-scale TKE. 
|| [../urban_surface_parameters#usm_wall_mod usm_wall_mod] || usm || L || .F. || Wall conductivity reduction.
|| [../biometeorology_parameters#uv_exposure uv_exposure] || biomet || L || .F. || Activation of the UV Exposure Model.
|| [../initialization_parameters#uv_heights uv_heights] || ini || R(100) || 100 * 9999999.9 || Height levels for prescribed u,v-profiles (in m). 
|| [../initialization_parameters#v_bulk v_bulk] [=#v] || ini || R || 0.0 || v-component of the predefined bulk velocity (in m/s). 
|| [../initialization_parameters#v_profile v_profile] || ini || R(100) || 100 * 9999999.9 || Values of v-velocity component to be used as initial profile (in m/s). 
|| [../salsa_parameters#van_der_waals_coagc van_der_waals_coagc] || salsa || L ||.F.|| Parameter to switch on the van der Waals forces when calculating the collision kernel in the coagulation subroutine.
|| [../initialization_parameters#vdi_checks vdi_checks] || ini || L || .F. || Switch the internal controls according to VDI 3783 Part 9 on. 
|| [../land_surface_parameters#vegetation_coverage vegetation_coverage] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Vegetation coverage of the surface.
|| [../land_surface_parameters#vegetation_type vegetation_type] || lsm || I ||2|| Vegetation type to be used in the land surface model. 
|| [../bulk_cloud_parameters#ventilation_effect ventilation_effect] || bulkc || L || .T. || Parameterize ventilation effect on evaporation of raindrops. 
|| [../particle_parameters#vertical_particle_advection vertical_particle] \\ [../particle_parameters#vertical_particle_advection _advection] || lpm || L || .T. || Switch on/off vertical particle transport.
|| [../initialization_parameters#vg_surface vg_surface] || ini || R || 0.0 || v-component of the geostrophic wind at the surface (in m/s). 
|| [../initialization_parameters#vg_vertical_gradient vg_vertical_gradient] || ini || R(10) || 10*0.0 || Gradient(s) of the initial profile of thev-component of the geostrophic wind (in 1/100s). 
|| [../initialization_parameters#vg_vertical_gradient_level vg_vertical_gradient] \\ [../initialization_parameters#vg_vertical_gradient_level _level] || ini || R(10) || 10*0.0 || Height level above which the gradient defined by [../initialization_parameters#vg_vertical_gradient vg_vertical_gradient] is effective (in m). 
|| [../virtual_measurement_parameters#vm_time_start vm_time_start] || vmm || R || 0.0 || Start time of the virtual measurements.
|| [../initialization_parameters#wall_adjustment wall_adjustment] [=#w] || ini || L || .T. || Parameter to restrict the mixing length in the vicinity of the bottom boundary (and near vertical walls of a non-flat [../initialization_parameters#topography topography]).
|| [../urban_surface_parameters#wall_category wall_category] || usm || I || 2 || Wall category.
|| [../chemistry_parameters#wall_csflux wall_csflux] || chem || R(99,6) || 0.0 ||  
|| [../initialization_parameters#wall_heatflux wall_heatflux] || ini || R(6) || 6*0.0 || Prescribed kinematic sensible heat flux in K m/s at the five topography faces. 
|| [../initialization_parameters#wall_humidityflux wall_humidityflux] || ini || R(6) || 6*0.0 || Prescribed kinematic humidity flux in m/s at the five topography faces. 
|| [../urban_surface_parameters#wall_inner_temperature wall_inner_temperature] || usm || R || 295.0 || Inner wall temperature.
|| [../ocean_parameters#wall_salinityflux wall_salinityflux] || ocean || R(6) || 6*0.0 || Prescribed kinematic salinity flux in Psu m/s at the six topography faces
|| [../initialization_parameters#wall_scalarflux wall_scalarflux] || ini || R(6) || 6*0.0 || Prescribed scalar flux at the five topography faces (in kg m^-2^ s^-1^ or ppm m s^-1^).
|| [../land_surface_parameters#water_temperature water_temperature] || lsm || R || depends on [../land_surface_parameters#water_type water_type]  || Water temperature (K), by default constant during the entire run.
|| [../land_surface_parameters#water_type water_type] || lsm || I || 1 || Water type classification according to the following list.
|| [../ocean_parameters#wave_breaking wave_breaking] || ocean || L || .F. || Parameter to switch on turbulence generation by wave breaking.
|| [../particle_parameters#weight_factor_merge weight_factor_merge] || lpm || R || 0.5 * \\ [../particle_parameters#initial_weighting_factor initial_weight_factor] || Threshold for merging of super droplets.
|| [../particle_parameters#weight_factor_split weight_factor_split] || lpm || R || 0.1 * \\ [../particle_parameters#initial_weighting_factor initial_weight_factor] || For splitting_mode='const' a critical weighting factor must be prescribed.
|| [../land_surface_parameters#wilting_point wilting_point] || lsm || R || depends on [../land_surface_parameters#soil_type soil_type] || Soil moisture at permanent wilting point (in m³/m³).
|| [../urban_surface_parameters#window_inner_temperature window_inner_temperature] || usm || R || 295.0 || Inner window temperature. 
|| [../particle_parameters#write_particle_statistics write_particle] \\ [../particle_parameters#write_particle_statistics _statistics] || lpm || L || .F. || Switch on/off output of particle information. 
|| [../virtual_flight_parameters#x_end x_end] [=#x] || vfm || R(100) || 100*999999999.0 || End-position of the flight leg along x in meter. 
|| [../virtual_flight_parameters#x_start x_start] || vfm || R(100) || 100*999999999.0 || Start-position of the flight leg along x in meter. 
|| [../virtual_flight_parameters#y_end y_end] [=#y] || vfm || R(100) || 100*999999999.0 || End-position of the flight leg along y in meter. 
|| [../virtual_flight_parameters#y_start y_start] || vfm || R(100) || 100*999999999.0 || Start-position of the flight leg along y in meter. 
|| [../wind_turbine_parameters#yaw_angle yaw_angle] || wtm || R(10000) || 0.0 || Yaw angle for each turbine in degrees. A positive yaw means a rotation of the rotor in clockwise direction within the xy-plane. 
|| [../wind_turbine_parameters#yaw_control yaw_control] || wtm || L || .F. || Parameter to switch on the yaw controller. 
|| [../wind_turbine_parameters#yaw_misalignment_max yaw_misalignment_max] || wtm || R || 0.08726 || Maximum tolerated yaw misalignment (in rad). 
|| [../wind_turbine_parameters#yaw_misalignment_min yaw_misalignment_min] || wtm || R || 0.008726 || Minimum yaw misalignment for which the actuator stops (in rad). 
|| [../wind_turbine_parameters#yaw_speed yaw_speed] || wtm || R || 0.005236 || Speed of the yaw actuator (in rad/s). 
|| [../initialization_parameters#y_shift y_shift] || ini || I ||0|| Distance of y-shift for cyclic and non-cyclic boundary conditions (in number of PEs). 
|| [../land_surface_parameters#z0_pavement z0_pavement] || lsm || R || depends on [../land_surface_parameters#pavement_type pavement_type] || Roughness length for momentum for pavement surface types. 
|| [../land_surface_parameters#z0_vegetation z0_vegetation] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Roughness length for momentum for vegetation surface types. 
|| [../land_surface_parameters#z0_water z0_water] || lsm || R || depends on [../land_surface_parameters#water_type water_type] || Roughness length for momentum for water surface types. 
|| [../land_surface_parameters#z0h_pavement z0h_pavement] || lsm || R || depends on [../land_surface_parameters#pavement_type pavement_type] || Roughness length for heat for pavement surface types. 
|| [../land_surface_parameters#z0h_vegetation z0h_vegetation] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Roughness length for heat for vegetation surface types. 
|| [../land_surface_parameters#z0h_water z0h_water] || lsm || R || depends on [../land_surface_parameters#water_type water_type] || Roughness length for heat for water surface types.
|| [../land_surface_parameters#z0q_pavement z0q_pavement] || lsm || R || depends on [../land_surface_parameters#pavement_type pavement_type] || Roughness length for moisture for pavement surface types. 
|| [../land_surface_parameters#z0q_vegetation z0q_vegetation] || lsm || R || depends on [../land_surface_parameters#vegetation_type vegetation_type] || Roughness length for moisture for vegetation surface types. 
|| [../land_surface_parameters#z0q_water z0q_water] || lsm || R || depends on [../land_surface_parameters#water_type water_type] || Roughness length for moisture for water surface types. 
|| [../initialization_parameters#zeta_max zeta_max] || ini || R || 20.0 || Upper limit of the stability parameter {{{zeta = z_mo/L}}}. 
|| [../initialization_parameters#zeta_min zeta_min] || ini || R || -20.0 || Lower limit of the stability parameter {{{zeta = z_mo/L}}}.