== Listing of the steering parameters in alphabetical order ==

\\
Initialization parameters (NAMELIST Group = I), run parameters (R), package parameters (P) as well as user-defined parameters (U) are alphabetically listed in the following table. 

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, y, [#z z]

||='''Parameter Name'''  =||='''NAMELIST \\ Group'''  =||='''Parameter Class \\'''  =||='''FORTRAN \\ Type'''  =|| \
||='''Default \\ Value'''  =||='''Explanation'''  =||
|| [../inipar#adjust_mixing_length adjust_mixing_length] [=#a] || I || bc || L || .F. || \
|| Near-surface adjustment of the mixing length to the Prandtl-layer law. ||
|| [../inipar#alpha_surface alpha_surface] || I || others || R || 0.0 || \
|| Inclination of the model domain with respect to the horizontal (in degrees). ||
|| [../d3par#averaging_interval averaging_interval] || R || output || R || 0.0 || \
|| Averaging interval for all output of temporally averaged data (in s). ||
|| [../d3par#averaging_interval_pr averaging_interval_pr] || R || output || R || value of [../d3par#averaging_interval averaging_interval] || \
|| Averaging interval for vertical profiles output to local file [../iofiles#DATA_1D_PR_NETCDF DATA_1D_PR_NETCDF] (in s). ||
|| [../sppar#averaging_interval_sp averaging_interval_sp] || R || output || R || value of [../d3par#averaging_interval averaging_interval] || \
|| Averaging interval for spectra output to local file [../iofiles#DATA_1D_SP_NETCDF DATA_1D_SP_NETCDF] (in s). ||
|| [../inipar#bc_e_b bc_e_b] [=#b] || I || bc || C*20 || 'neumann' || Bottom boundary condition of the TKE. ||
|| [../inipar#bc_lr bc_lr] || I || bc || C*20 || 'cyclic' || Boundary condition along x (for all quantities). ||
|| [../inipar#bc_ns bc_ns] || I || bc || C*20 || 'cyclic' || Boundary condition along y (for all quantities). ||
|| [../d3par#bc_p_b bc_p_b] || I || bc || C*20 || 'neumann' || Bottom boundary condition of the perturbation pressure. ||
|| [../parpar#bc_par_b bc_par_b] || P || bc || C*15 || 'reflect' || Bottom boundary condition for particle transport. ||
|| [../parpar#bc_par_lr bc_par_lr] || P || bc || C*15 || 'cyclic' || Lateral boundary condition (x-direction) for particle transport. ||
|| [../parpar#bc_par_ns bc_par_ns] || P || bc || C*15 || 'cyclic' || Lateral boundary condition (y-direction) for particle transport. ||
|| [../parpar#bc_par_t bc_par_t] || P || bc || C*15 || 'absorb' || Top boundary condition for particle transport. ||
|| [../inipar#bc_pt_b bc_pt_b] || I || bc || C*20 || 'dirichlet' || Bottom boundary condition of the potential temperature. ||
|| [../inipar#bc_pt_t bc_pt_t] || I || bc || C*20 || 'initial_gradient' || Top boundary condition of the potential temperature. ||
|| [../inipar#bc_q_b bc_q_b] || I || bc || C*20 || 'dirichlet' || Bottom boundary condition of the specific humidity / total water content.  ||
|| [../inipar#bc_q_t bc_q_t] || I || bc || C*20 || 'neumann' || Top boundary condition of the specific humidity / total water content. ||
|| [../inipar#bc_s_b bc_s_b] || I || bc || C*20 || 'dirichlet' || Bottom boundary condition of the scalar concentration.  ||
|| [../inipar#bc_s_t bc_st] || I || bc || C*20 || 'neumann' || Top boundary condition of the scalar concentration.  ||
|| [../inipar#bc_sa_t bc_sa_t] || I || bc || C*20 || 'neumann' || Top boundary condition of the salinity.  ||
|| [../inipar#bc_uv_t bc_uv_t] || I || bc || C*20 || 'dirichlet' || Bottom boundary condition of the horizontal wind components u and v. ||
|| [../inipar#bc_uv_t bc_uv_t] || I || bc || C*20 || 'dirichlet' || Top boundary condition of the horizontal velocity components u and v. ||
|| [../inipar#bottom_salinityflux bottom_salinityflux] || I || bc || R || 0.0 || Kinematic salinity flux near the surface (in psu m/s). ||
|| [../inipar#building_height building_height] || I || topo || R || 50.0 || Height of a single building in m. ||
|| [../inipar#building_length_x building_length_x] || I || topo || R || 50.0 || Width of a single building in m. ||
|| [../inipar#building_length_y building_length_y] || I || topo || R || 50.0 || Depth of a single building in m. ||
|| [../inipar#building_wall_left building_wall_left] || I || topo || R || building centered in \\ x-direction || \
|| x-coordinate of the left building wall in m. ||
|| [../inipar#building_wall_south building_wall_south] || I || topo || R || building centered in \\ y-direction || \
|| y-coordinate of the South building wall in m. ||
|| [../inipar#call_psolver_at_all_substeps call_psolver_at_all_substeps] [=#c] || I || num || L || T || \
|| Switch to steer the call of the pressure solver. ||
|| [../inipar#canopy_mode canopy_mode] || I || canopy || C*20 || 'block' || Canopy mode. ||
|| [../inipar#canyon_height canyon_height] || I || topo || R || 50.0 || Street canyon height in m. ||
|| [../inipar#canyon_width_x canyon_width_x] || I || topo || R || 9999999.9 || Street canyon width in x-direction in m. ||
|| [../inipar#canyon_width_y canyon_width_y] || I || topo || R || 9999999.9 || Street canyon width in y-direction in m. ||
|| [../inipar#canyon_wall_left canyon_wall_left] || I || topo || R || canyon centered in x-direction || \
|| x-coordinate of the left canyon wall in m. ||
|| [../inipar#canyon_wall_south canyon_wall_south] || I || topo || R || canyon centered in y-direction || \
|| y-coordinate of the South canyon wall in m. ||
|| [../d3par#cfl_factor cfl_factor] || R || num || R || 0.1, 0.8 or 0.9 (see \\ parameter description) || \
|| Time step limiting factor. ||
|| [../dvrpar#clip_dvrp_l clip_dvrp_l] || P || dvr || R || 0.0 || Left boundary of the displayed domain (in m). ||
|| [../dvrpar#clip_dvrp_n clip_dvrp_n] || P || dvr || R || (ny + 1)*dy || North boundary of the displayed domain (in m). ||
|| [../dvrpar#clip_dvrp_r clip_dvrp_r] || P || dvr || R || (nx + 1)*dx || Right boundary of the displayed domain (in m). ||
|| [../dvrpar#clip_dvrp_s clip_dvrp_s] || P || dvr || R || 0.0 || South boundary of the displayed domain (in m). ||
|| [../inipar#cloud_droplets cloud_droplets] || I || mode || L || .F. || Parameter to switch on usage of cloud droplets. ||
|| [../inipar#cloud_physics cloud_physics] || I || mode || L || .F. || Parameter to switch on the condensation scheme.  ||
|| [../dvrpar#cluster_size cluster_size] || P || dvr || I || 1 || Vertex cluster size for polygon reduction of topography. ||
|| [../dvrpar#color_interval color_interval] || P || dvr || R(2) || 0.0, 1.0 || \
|| Interval of values used for determining the particle color displayed in the animation. ||
|| [../sppar#comp_spectra_level comp_spectra_level] || P || output || I(100) || no level || \
|| Vertical level for which horizontal spectra are to be calculated and output (gridpoints). ||
|| [../inipar#conserve_volume_flow conserve_volume_flow] || I || mode || L || .F. || Conservation of volume flow in x- and y-direction. ||
|| [../inipar#conserve_volume_flow_mode conserve_volume_flow_mode] || I || mode || C*16 || 'default' || Modus of volume flow conservation. ||
|| [../inipar#coupling_start_time coupling_start_time] || I || mode || R || 0.0 || Simulation time of a precursor run.. ||
|| [../d3par#create_disturbances create_disturbances] || R || run steering || L || .T. || \
|| Switch to impose random perturbations to the horizontal velocity field.  ||
|| [../d3par#cross_normalized_x cross_normalized_x] || R || output || C*10(100) || 100*' ' || \
|| Type of normalization applied to the x-coordinate of vertical profiles to be plotted with 'profil'. ||
|| [../d3par#cross_normalized_y cross_normalized_y] || R || output || C*10(100) || 100*' ' || \
|| Type of normalization applied to the y-coordinate of vertical profiles to be plotted with 'profil'. ||
|| [../d3par#cross_profiles cross_profiles] || R || output || C*100(100) || see parameter \\ description || \
|| Determines which vertical profiles are to be presented in which coordinate system if the plot software profil is used. ||
|| [../d3par#cross_xtext cross_xtext] || R || output || C*40(100) || see parameter \\ description || \
|| x-axis labels of vertical profile coordinate systems to be plotted with 'profil'. ||
|| [../d3par#cthf cthf] || R || canopy || R || 0.0 || Average heat flux that is prescribed at the top of the plant canopy (in K m/s). ||
|| [../inipar#cycle_mg cycle_mg] || I || num || C*1 || 'w' || Type of cycle to be used with the multi-grid method. ||
|| [../inipar#damp_level_1d damp_level_1d] [=#d] || I || ini || R || zu(nz + 1) || Height where the damping layer begins in the 1d-model (in m). ||
|| [../d3par#data_output data_output] || R || output || C*10(100) || 100*' ' || \
|| Quantities for which 2d cross section and/or 3d volume data are to be output. ||
|| [../d3par#data_output_format data_output_format] || R || output || C*10(10) || 'netCDF' || Format of output data. ||
|| [../d3par#data_output_pr data_output_pr] || R || output || C*10(100) || 100*' ' || \
|| Quantities for which vertical profiles (horizontally averaged) are to be output. ||
|| [../d3par#data_output_pr_user data_output_pr_user] || U || output || C*10(200) || 200*' ' || \
|| User defined quantities for which horizontally averaged profile data is to be output. ||
|| [../d3par#data_output_2d_on_each_pe data_output_on_each_pe] || R || output || L || .T. || \
|| Output 2d cross section data by one or all processors.  ||
|| [../parpar#density_ratio density_ratio] || P || particle || R(10) || 0.0, 9*9999999.9 || \
|| Ratio of the density of the fluid and the density of the particles. ||
|| [../inipar#dissipation_1d dissipation_id] || I || ini || C*20 || 'as_in_3d_model' || \
|| Calculation method for the energy dissipation term in the TKE equation of the 1d-model. ||
|| [../d3par#disturbance_amplitude disturbance_amplitude] || R || run steering || R || 0.25 || \
|| Maximum perturbation amplitude of the random perturbations imposed to the horizontal velocity field (in m/s).  ||
|| [../d3par#disturbance_energy_limit disturbance_energy_limit] || R || run steering || 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^). ||
|| [../d3par#disturbance_level_b disturbance_level_b] || R || run steering || 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). ||
|| [../d3par#disturbance_level_t disturbance_level_t] || R || run steering || 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). ||
|| [../d3par#do2d_at_begin do2d_at_begin] || R || output || L || .F. || Output 2d cross section data by one or all processors. ||
|| [../d3par#do3d_at_begin do3d_at_begin] || R || output || L || .F. || Output of 3d volume data at the beginning of a run. ||
|| [../d3par#do3d_compress do3d_compress] || R || output || L || .F. || Output of data for 3d plots in compressed form. ||
|| [../d3par#do3d_comp_prec do3d_comp_prec] || R || output || C*7(100) || see parameter \\ description || \
|| Significant digits in case of compressed data output. ||
|| [../d3par#dp_external dp_external] || R || mode || L || .F. || External pressure gradient switch. ||
|| [../d3par#dp_smooth dp_smooth] || R || mode || L || .F. || Vertically smooth the external pressure gradient using a sinusoidal smoothing function. ||
|| [../d3par#dp_level_b dp_level_b] || R || mode || R || 0.0 || \
|| Lower limit of the vertical range for which the external pressure gradient is applied (in m). ||
|| [../d3par#dpdxy dpdxy] || R || mode || R(2) || 2*0.0 || \
|| Values of the external pressure gradient applied in x- and y-direction, respectively (in Pa/m). ||
|| [../inipar#drag_coefficient drag_coefficient] || I || canopy || R || 0.0 || Drag coefficient used in the plant canopy model. ||
|| [../d3par#dt dt] || R || run steering || R || variable || Time step for the 3d-model (in s). ||
|| [../d3par#dt_averaging_input dt_averaging_input] || R || output || R || 0.0 || \
|| Temporal interval of data which are subject to temporal averaging (in s). ||
|| [../d3par#dt_averaging_input_pr dt_averaging_input_pr] || R || output || R || value of \\ [../d3par#dt_averaging_input dt_averaging_input] || \
|| Temporal interval of data which are subject to temporal averaging of vertical profiles and/or spectra (in s). ||
|| [../d3par#dt_coupling dt_coupling] || R || ocean || R || 9999999.9 || \
|| Temporal interval for the data exchange in case of runs with coupled models (e.g. atmosphere - ocean) (in s). ||
|| [../d3par#dt_data_output dt_data_output] || R || output || R || 9999999.9 || \
|| Temporal interval at which data (3d volume data, cross sections, vertical profiles, spectra) shall be output (in s). ||
|| [../d3par#dt_data_output_av dt_data_output_av] || R || output || R || value of \\ [../d3par#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). ||
|| [../d3par#dt_disturb dt_disturb] || R || run steering || R || 9999999.9 || \
|| Temporal interval at which random perturbations are to be imposed on the horizontal velocity field (in s). ||
|| [../d3par#dt_dopr dt_dopr] || R || output || R || value of \\ [../d3par#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). ||
|| [../d3par#dt_dopr_listing dt_dopr_listing] || R || output || 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).||
|| [../d3par#dt_dopts dt_dopts] || P || output || R || value of \\ [../d3par#dt_data_output dt_data_output] || \
|| Temporal interval at which time series data of particle quantities shall be output (in s). ||
|| [../d3par#dt_dosp dt_dosp] || P || output || R || value of \\ [../d3par#dt_data_output dt_data_output] || \
|| Temporal interval at which spectra data shall be output (in s). ||
|| [../d3par#dt_dots dt_dots] || R || output || R || see parameter \\ description || \
|| Temporal interval at which time series data shall be output (in s). ||
|| [../d3par#dt_do2d_xy dt_do2d_xy] || R || output || R || value of \\ [../d3par#dt_data_output dt_data_output] || \
|| Temporal interval at which horizontal cross section data shall be output (in s). ||
|| [../d3par#dt_do2d_xz dt_do2d_xz] || R || output || R || value of \\ [../d3par#dt_data_output dt_data_output] || \
|| Temporal interval at which vertical cross section data (xz) shall be output (in s). ||
|| [../d3par#dt_do2d_yz dt_do2d_yz] || R || output || R || value of \\ [../d3par#dt_data_output dt_data_output] || \
|| Temporal interval at which vertical cross section data (yz) shall be output (in s). ||
|| [../d3par#dt_do3d dt_do3d] || R || output || R || value of \\ [../d3par#dt_data_output dt_data_output] || \
|| Temporal interval at which 3d volume data shall be output (in s). ||
|| [../dvrpar#dt_dvr dt_dvr] || P || dvr || R || 9999999.9 || Temporal interval of scenes to be displayed with the dvrp software (in s). ||
|| [../d3par#dt_max dt_max] || R || run steering || R || 20.0 || Maximum allowed value of the timestep (in s). ||
|| [../parpar#dt_min_part dt_min_part] || P || particle || R || 0.0002 || \
|| Minimum value for the particle timestep when SGS velocities are used (in s). ||
|| [../parpar#dt_prel dt_prel] || P || particle || R || 9999999.9 || \
|| Temporal interval at which particles are to be released from a particle source (in s). ||
|| [../inipar#dt_pr_1d dt_pr_1d] || I || ini || R || 9999999.9 || Temporal interval of vertical profile output of the 1D-model (in s). ||
|| [../d3par#dt_restart dt_restart] || R || run steering || R || 9999999.9 || \
|| Temporal interval at which a new restart run is to be carried out (in s). ||
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