Changes between Version 46 and Version 47 of doc/app/radiation_parameters


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Timestamp:
Feb 12, 2020 1:30:30 PM (5 years ago)
Author:
scharf
Comment:

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  • doc/app/radiation_parameters

    v46 v47  
    403403'' 'clear-sky' ''
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    405 A simple clear sky model is used to calculate the radiation fluxes at the surface (shortwave incoming, shortwave outgoing, longwave incoming, longwave outgoing) and consequently the net radiation at the surface. This scheme requires setting [#albedo albedo], [../inipar#day_of_year_init day_of_year_init], [wiki:doc/app/inipar#longitude longitude], [wiki:doc/app/inipar#latitude latitude], and [../inipar#time_utc_init time_utc_init].
     405A simple clear sky model is used to calculate the radiation fluxes at the surface (shortwave incoming, shortwave outgoing, longwave incoming, longwave outgoing) and consequently the net radiation at the surface. This scheme requires setting [#albedo albedo], [../initialization_parameters#day_of_year_init day_of_year_init], [wiki:doc/app/initialization_parameters#longitude longitude], [wiki:doc/app/initialization_parameters#latitude latitude], and [../initialization_parameters#time_utc_init time_utc_init].
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    414414'' 'rrtmg' ''
    415415
    416 The [http://rtweb.aer.com/rrtm_frame.html RRTMG model] is used to calculate the radiative heating rates for each model column. This scheme requires setting [../inipar#day_of_year_init day_of_year_init], [wiki:doc/app/inipar#longitude longitude], [wiki:doc/app/inipar#latitude latitude], [../inipar#time_utc_init time_utc_init]. The following parameters can be set optionally: [#albedo_type albedo_type] (and/or [#albedo_lw_dif albedo_lw_dif], [#albedo_lw_dir albedo_lw_dir], [#albedo_sw_dif albedo_sw_dif], [#albedo_sw_dir albedo_sw_dir]). [#constant_albedo constant_albedo] can be used to fix the albedo during the simulation. It is also possible to use the switches [#lw_radiation lw_radiation] and [#sw_radiation sw_radiation].
     416The [http://rtweb.aer.com/rrtm_frame.html RRTMG model] is used to calculate the radiative heating rates for each model column. This scheme requires setting [../initialization_parameters#day_of_year_init day_of_year_init], [wiki:doc/app/initialization_parameters#longitude longitude], [wiki:doc/app/initialization_parameters#latitude latitude], [../initialization_parameters#time_utc_init time_utc_init]. The following parameters can be set optionally: [#albedo_type albedo_type] (and/or [#albedo_lw_dif albedo_lw_dif], [#albedo_lw_dir albedo_lw_dir], [#albedo_sw_dif albedo_sw_dif], [#albedo_sw_dir albedo_sw_dir]). [#constant_albedo constant_albedo] can be used to fix the albedo during the simulation. It is also possible to use the switches [#lw_radiation lw_radiation] and [#sw_radiation sw_radiation].
    417417
    418418Please note that the use of RRTMG requires to compile PALM with {{{-D__rrtmg}}} preprocessor directive (in .palm.config.<configuration_identifier> file). But before this, the RRTMG libraries need to be [wiki:doc/tec/radiation#Installation installed].