Changes between Version 6 and Version 7 of doc/app/ocean_parameters
- Timestamp:
- Feb 12, 2020 1:17:58 PM (5 years ago)
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doc/app/ocean_parameters
v6 v7 110 110 Parameter to switch on and set the effects of Langmuir circulation in PALM's ocean mode. 111 111 112 The effects of Langmuir circulation are considered in PALM by the Craik-Leibovich vortex force and the Stokes drift velocity, as described in Noh et al. (2004), JPO. In order to switch these effects on, you need to set both parameters, '''stokes_waveheight''' as well as [#stokes_wavelength stokes_wavelength] to a non-zero positive value. '''stokes_waveheight''' sets the height of the ocean surface waves to be used for calculating the vertical profile of the Stokes drift velocity. The direction of the Stokes drift velocity is derived from parameters [wiki:doc/app/ini par#top_momentumflux_u top_momentumflux_u] and [wiki:doc/app/inipar#top_momentumflux_v top_momentumflux_v], which define the wind stress at the ocean surface.112 The effects of Langmuir circulation are considered in PALM by the Craik-Leibovich vortex force and the Stokes drift velocity, as described in Noh et al. (2004), JPO. In order to switch these effects on, you need to set both parameters, '''stokes_waveheight''' as well as [#stokes_wavelength stokes_wavelength] to a non-zero positive value. '''stokes_waveheight''' sets the height of the ocean surface waves to be used for calculating the vertical profile of the Stokes drift velocity. The direction of the Stokes drift velocity is derived from parameters [wiki:doc/app/initialization_parameters#top_momentumflux_u top_momentumflux_u] and [wiki:doc/app/initialization_parameters#top_momentumflux_v top_momentumflux_v], which define the wind stress at the ocean surface. 113 113 }}} 114 114 |---------------- … … 125 125 Parameter to switch on and set the effects of Langmuir circulation in PALM's ocean mode. 126 126 127 The effects of Langmuir circulation are considered in PALM by the Craik-Leibovich vortex force and the Stokes drift velocity, as described in Noh et al. (2004), JPO. In order to switch these effects on, you need to set both parameters, '''stokes_wavelength''' as well as [#stokes_waveheight stokes_waveheight] to a non-zero positive value. '''stokes_wavelength''' sets the wave length of the ocean surface waves to be used for calculating the vertical profile of the Stokes drift velocity. The direction of the Stokes drift velocity is derived from parameters [wiki:doc/app/ini par#top_momentumflux_u top_momentumflux_u] and [wiki:doc/app/inipar#top_momentumflux_v top_momentumflux_v], which define the wind stress at the ocean surface.127 The effects of Langmuir circulation are considered in PALM by the Craik-Leibovich vortex force and the Stokes drift velocity, as described in Noh et al. (2004), JPO. In order to switch these effects on, you need to set both parameters, '''stokes_wavelength''' as well as [#stokes_waveheight stokes_waveheight] to a non-zero positive value. '''stokes_wavelength''' sets the wave length of the ocean surface waves to be used for calculating the vertical profile of the Stokes drift velocity. The direction of the Stokes drift velocity is derived from parameters [wiki:doc/app/initialization_parameters#top_momentumflux_u top_momentumflux_u] and [wiki:doc/app/initialization_parameters#top_momentumflux_v top_momentumflux_v], which define the wind stress at the ocean surface. 128 128 129 129 }}} … … 141 141 Time (in s) after which the surface heat flux is switched off. 142 142 143 This parameter can be used to limit the duration of surface heat flux forcing. If, for example, a surface cooling is required during an initial spin-up phase for only 15 minutes in order to trigger the development of a Langmuir circulation, you need to give the heat flux via [wiki:doc/app/ini par#top_heatflux top_heatflux] and set '''surface_cooling_spinup_time''' = 900.0. The default value means that the surface flux is never switched off.143 This parameter can be used to limit the duration of surface heat flux forcing. If, for example, a surface cooling is required during an initial spin-up phase for only 15 minutes in order to trigger the development of a Langmuir circulation, you need to give the heat flux via [wiki:doc/app/initialization_parameters#top_heatflux top_heatflux] and set '''surface_cooling_spinup_time''' = 900.0. The default value means that the surface flux is never switched off. 144 144 }}} 145 145 |---------------- … … 158 158 If a value is assigned to this parameter, the internal surface heat flux array is initialized with the value of '''top_salinityflux''' as top (horizontally homogeneous) boundary condition for the salinity equation. This additionally requires that a Neumann condition must be used for the salinity (see [#bc_sa_t bc_sa_t]), because otherwise the resolved scale may contribute to the top flux so that a constant flux value cannot be guaranteed.\\\\ 159 159 '''Note:'''\\ 160 The application of a salinity flux at the model top additionally requires the setting of initial parameter [wiki:doc/app/ini par#use_top_fluxes use_top_fluxes] = ''.T.''.\\\\160 The application of a salinity flux at the model top additionally requires the setting of initial parameter [wiki:doc/app/initialization_parameters#use_top_fluxes use_top_fluxes] = ''.T.''.\\\\ 161 161 See also [#bottom_salinityflux bottom_salinityflux]. 162 162 }}}
