!-------------------------------------------------------------------------------
!-- INITIALIZATION PARAMETER NAMELIST
!   Documentation: https://palm.muk.uni-hannover.de/trac/wiki/doc/app/inipar
!-------------------------------------------------------------------------------
!   This is a setup for generating an ocean mixed layer including the effects
!   of Stokes drift (Langmuir circulation) and wave breaking, based on the
!   case described in Noh, Y., H.S. Min and S. Raasch (2004): Large-eddy
!   simulation of the ocean mixed layer: The effects of wave breaking and
!   Langmuir circulation. J. Phys. Oceanogr., 34, 720-735.
!-------------------------------------------------------------------------------
&initialization_parameters
!
!-- grid parameters
!-------------------------------------------------------------------------------
    nx                      = 63,  ! Number of gridboxes in x-direction (nx+1)
                                   ! For Noh et al. change to nx = 239
    ny                      = 63,  ! Number of gridboxes in y-direction (ny+1)
                                   ! For Noh et al. change to nx = 239
    nz                      = 64,  ! Number of gridboxes in z-direction (nz)

    dx                      = 1.25, ! Size of single gridbox in x-direction
    dy                      = 1.25, ! Size of single gridbox in y-direction
    dz                      = 1.25, ! Size of single gridbox in z-direction
!
!-- initialization
!-------------------------------------------------------------------------------
    initializing_actions    = 'set_constant_profiles', ! initial conditions

    latitude                = 55.0,  ! corresponds to a Coriolis parameter 
                                     ! f = 1.2**-4 s-1

    ug_surface              = 0.0,   ! u-comp of geostrophic flow at surface
    vg_surface              = 0.0,   ! v-comp of geostrophic flow at surface

    pt_surface              = 300.0, ! initial surface potential temp
!
!-- boundary conditions
!-------------------------------------------------------------------------------
    bc_uv_b                 = 'neumann',
    bc_uv_t                 = 'neumann',
    bc_pt_b                 = 'neumann',
    bc_pt_t                 = 'neumann',
    bc_p_b                  = 'neumann',
    bc_p_t                  = 'neumann',

    use_top_fluxes          = .T.,
    use_surface_fluxes      = .F.,
    constant_flux_layer     = .F.,

    top_momentumflux_u      = -0.0001,    ! corresponds to u* = 0.01 m/s
    top_momentumflux_v      = 0.0,

    top_heatflux            = 1.02e-4,    ! gives weak cooling at ocean
                                          ! surface to initiate buoyancy driven
                                          ! turbulence,
                                          ! see surface_cooling_spinup_time
                                          ! below
!
!-- numerics
!-------------------------------------------------------------------------------
    fft_method              = 'temperton-algorithm',   ! build-in fft method

    momentum_advec          = 'ws-scheme',  ! attention: Noh et al. used the
                                            ! Piascek-Williams advection scheme
    scalar_advec            = 'ws-scheme',  ! attention: Noh et al. used the
                                            ! Piascek-Williams advection scheme

/ ! end of initialization parameter namelist

!-------------------------------------------------------------------------------
!-- RUNTIME PARAMETER NAMELIST
!   Documentation: https://palm.muk.uni-hannover.de/trac/wiki/doc/app/d3par
!-------------------------------------------------------------------------------
&runtime_parameters
!
!-- run steering
!-------------------------------------------------------------------------------
    end_time                =   120.0, ! simulation time of the 3D model
                                       ! For Noh et al. change to  28800.0 s

    create_disturbances     = .TRUE.,  ! randomly perturbate horiz. velocity
                                       ! at beginning of the run
    disturbance_amplitude   = 0.25e-3, ! maximum perturbation amplitude

!
!-- data output
!-------------------------------------------------------------------------------
    netcdf_data_format = 2,            ! output in NetCDF3 64bit offset format

    dt_run_control          = 0.0,     ! output interval for run control

! remove the following line to create output of time series 
    dt_dots                 = 100000.0,

    dt_dopr                 = 120.0,   ! For Noh et al. change to 1800.0

    averaging_interval_pr   = 120.0,   ! For Noh et al. change to 600.0
    dt_averaging_input_pr   = 10.0
    data_output_pr          = 'e', 'e*', '#theta',
                              'prho', 'u', 'v', 'w', 'km', 'kh', 'l',
                              'u*2', 'v*2', 'w*2', 'theta*2', 'w*3',
                              'wu', 'w*u*', 'w"u"',
                              'wv', 'w*v*', 'w"v"',
                              'w*e*', 'w*p*',
                              'w*u*u*:dz', 'w*p*:dz', 'w"e:dz',

! uncomment following lines to create some of the output that is shown in
! the Noh et al. paper
!    dt_data_output          = 3600.0,
!    data_output             = 'w', 'theta',

/ ! end of runtime parameter namelist


!-------------------------------------------------------------------------------
!-- OCEAN PARAMETER NAMELIST
!   Documentation: https://palm.muk.uni-hannover.de/trac/wiki/doc/app/oceanpar
!-------------------------------------------------------------------------------
&ocean_parameters

    stokes_waveheight          = 1.0      ! results in a turbulent Langmuir
                                          ! number La = 0.45
    stokes_wavelength          = 40.0,    ! results in a turbulent Langmuir
                                          ! number La = 0.45
    wave_breaking              = .F.,     ! The implemented parameterization is
                                          ! designed for a vertical grid spacing
                                          ! of dz = 1.25m and time steps of
                                          ! about 4 s. It will probably fail for
                                          ! other setups.
                                          ! Attention:
                                          ! For Noh et al. switch to .T.
    surface_cooling_spinup_time = 900.0,  ! add a surface cooling only at start
                                          ! in order to initiate turbulence

    salinity                   = .TRUE.,  ! salinity switched on just for
                                          ! testing the salinity code
                                          ! remove this and the following two
                                          ! parameters for simulating the
                                          ! Noh et al. case
    bc_sa_t                    = 'neumann',
    top_salinityflux           = 0.0,     ! zero salinityflux at ocean surface

/ ! end of ocean parameters

  ! WARNING: do not remove this blank line from the end of this file