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CCPP Scientific Documentation
v4.0
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CCPP Scientific Documentation
v4.0
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This module includes NCEP's modifications of the RRTMG-LW radiation code from AER. More...
The RRTM-LW package includes three files:
| local_name | standard_name | long_name | units | type | dimensions | kind | intent | optional |
|---|---|---|---|---|---|---|---|---|
| plyr | air_pressure_at_layer_for_radiation_in_hPa | air pressure layer | hPa | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| plvl | air_pressure_at_interface_for_radiation_in_hPa | air pressure level | hPa | real | (horizontal_dimension, adjusted_vertical_level_dimension_for_radiation) | kind_phys | in | False |
| tlyr | air_temperature_at_layer_for_radiation | air temperature layer | K | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| tlvl | air_temperature_at_interface_for_radiation | air temperature level | K | real | (horizontal_dimension, adjusted_vertical_level_dimension_for_radiation) | kind_phys | in | False |
| qlyr | water_vapor_specific_humidity_at_layer_for_radiation | specific humidity layer | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| olyr | ozone_concentration_at_layer_for_radiation | ozone concentration layer | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_co2 | volume_mixing_ratio_co2 | volume mixing ratio co2 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_n2o | volume_mixing_ratio_n2o | volume mixing ratio no2 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_ch4 | volume_mixing_ratio_ch4 | volume mixing ratio ch4 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_o2 | volume_mixing_ratio_o2 | volume mixing ratio o2 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_co | volume_mixing_ratio_co | volume mixing ratio co | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_cfc11 | volume_mixing_ratio_cfc11 | volume mixing ratio cfc11 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_cfc12 | volume_mixing_ratio_cfc12 | volume mixing ratio cfc12 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_cfc22 | volume_mixing_ratio_cfc22 | volume mixing ratio cfc22 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| gasvmr_ccl4 | volume_mixing_ratio_ccl4 | volume mixing ratio ccl4 | kg kg-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| icseed | seed_random_numbers_lw | seed for random number generation for longwave radiation | none | integer | (horizontal_dimension) | in | False | |
| aeraod | aerosol_optical_depth_for_longwave_bands_01_16 | aerosol optical depth for longwave bands 01-16 | none | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation, number_of_aerosol_bands_for_longwave_radiation) | kind_phys | in | False |
| aerssa | aerosol_single_scattering_albedo_for_longwave_bands_01_16 | aerosol single scattering albedo for longwave bands 01-16 | frac | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation, number_of_aerosol_bands_for_longwave_radiation) | kind_phys | in | False |
| sfemis | surface_longwave_emissivity | surface emissivity | frac | real | (horizontal_dimension) | kind_phys | in | False |
| sfgtmp | surface_ground_temperature_for_radiation | surface ground temperature for radiation | K | real | (horizontal_dimension) | kind_phys | in | False |
| dzlyr | layer_thickness_for_radiation | layer thickness | km | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| delpin | layer_pressure_thickness_for_radiation | layer pressure thickness | hPa | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | in | False |
| de_lgth | cloud_decorrelation_length | cloud decorrelation length | km | real | (horizontal_dimension) | kind_phys | in | False |
| npts | horizontal_loop_extent | horizontal dimension | count | integer | () | in | False | |
| nlay | adjusted_vertical_layer_dimension_for_radiation | number of vertical layers for radiation | count | integer | () | in | False | |
| nlp1 | adjusted_vertical_level_dimension_for_radiation | number of vertical levels for radiation | count | integer | () | in | False | |
| lprnt | flag_print | flag to print | flag | logical | () | in | False | |
| cld_cf | total_cloud_fraction | total cloud fraction | frac | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | False |
| lslwr | flag_to_calc_lw | flag to calculate LW irradiances | flag | logical | () | in | False | |
| hlwc | tendency_of_air_temperature_due_to_longwave_heating_on_radiation_time_step | longwave total sky heating rate | K s-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | inout | False |
| topflx | lw_fluxes_top_atmosphere | longwave total sky fluxes at the top of the atm | W m-2 | topflw_type | (horizontal_dimension) | inout | False | |
| sfcflx | lw_fluxes_sfc | longwave total sky fluxes at the Earth surface | W m-2 | sfcflw_type | (horizontal_dimension) | inout | False | |
| cldtau | cloud_optical_depth_layers_at_10mu_band | approx 10mu band layer cloud optical depth | none | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | inout | False |
| hlw0 | tendency_of_air_temperature_due_to_longwave_heating_assuming_clear_sky_on_radiation_time_step | longwave clear sky heating rate | K s-1 | real | (horizontal_dimension, adjusted_vertical_layer_dimension_for_radiation) | kind_phys | inout | True |
| cld_lwp | cloud_liquid_water_path | cloud liquid water path | g m-2 | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_ref_liq | mean_effective_radius_for_liquid_cloud | mean effective radius for liquid cloud | micron | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_iwp | cloud_ice_water_path | cloud ice water path | g m-2 | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_ref_ice | mean_effective_radius_for_ice_cloud | mean effective radius for ice cloud | micron | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_rwp | cloud_rain_water_path | cloud ice water path | g m-2 | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_ref_rain | mean_effective_radius_for_rain_drop | mean effective radius for rain drop | micron | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_swp | cloud_snow_water_path | cloud snow water path | g m-2 | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| cld_ref_snow | mean_effective_radius_for_snow_flake | mean effective radius for snow flake | micron | real | (horizontal_dimension, vertical_dimension) | kind_phys | in | True |
| errmsg | ccpp_error_message | error message for error handling in CCPP | none | character | () | len=* | out | False |
| errflg | ccpp_error_flag | error flag for error handling in CCPP | flag | integer | () | out | False |
Modules | |
| module | module_radlw_parameters |
| This module contains LW band parameters set up. | |
| module | module_radlw_avplank |
| This module contains plank flux data. | |
| module | module_radlw_ref |
| This module contains reference temperature and pressure. | |
| module | module_radlw_cldprlw |
| This module contains cloud property coefficients. | |
| module | module_radlw_kgb01 |
| This module sets up absorption coefficients for band 01: 10-250 cm-1 (low - h2o; high - h2o) | |
| module | module_radlw_kgb02 |
| This module sets up absorption coefficients for band 02: 250-500 cm-1 (low - h2o; high - h2o) | |
| module | module_radlw_kgb03 |
| This module sets up absorption coefficients for band 03: 500-630 cm-1 (low - h2o, co2; high - h2o, co2) | |
| module | module_radlw_kgb04 |
| This module sets up absorption coefficients for band 04: 630-700 cm-1 (low - h2o, co2; high - co2, o3) | |
| module | module_radlw_kgb05 |
| This module sets up absorption coefficients for band 05: 700-820 cm-1 (low - h2o, co2; high - co2, o3) | |
| module | module_radlw_kgb06 |
| This module sets up absorption coefficients for band 06: 820-980 cm-1 (low - h2o; high - /) | |
| module | module_radlw_kgb07 |
| This module sets up absorption coefficients for band 07: 980-1080 cm-1 (low - h2o, o3; high - o3) | |
| module | module_radlw_kgb08 |
| This module sets up absorption coefficients for band 08: 1080-1180 cm-1 (low - h2o; high - o3) | |
| module | module_radlw_kgb09 |
| This module sets up absorption coefficients for band 09: 1180-1390 cm-1 (low - h2o, ch4; high - ch4) | |
| module | module_radlw_kgb10 |
| This module sets up absorption coefficients for band 10: 1390-1480 cm-1 (low - h2o; high - h2o) | |
| module | module_radlw_kgb11 |
| This module sets up absorption coefficients for band 11: 1480-1800 cm-1 (low - h2o; high - h2o) | |
| module | module_radlw_kgb12 |
| This module sets up absorption coefficients for band 12: 1800-2080 cm-1 (low - h2o, co2; high - /) | |
| module | module_radlw_kgb13 |
| This module sets up absorption coefficients for band 13: 2080-2250 cm-1 (low - h2o, n2o; high - /) | |
| module | module_radlw_kgb14 |
| This module sets up absorption coefficients for band 14: 2250-2380 cm-1 (low - co2; high - co2) | |
| module | module_radlw_kgb15 |
| This module sets up absorption coefficients for band 15: 2380-2600 cm-1 (low - n2o, co2; high - /) | |
| module | module_radlw_kgb16 |
| This module sets up absorption coefficients for band 16: 2600-3000 cm-1 (low - h2o, ch4; high - /) | |
Functions/Subroutines | |
| subroutine, public | rrtmg_lw::rrtmg_lw_run (plyr, plvl, tlyr, tlvl, qlyr, olyr, gasvmr_co2, gasvmr_n2o, gasvmr_ch4, gasvmr_o2, gasvmr_co, gasvmr_cfc11, gasvmr_cfc12, gasvmr_cfc22, gasvmr_ccl4, icseed, aeraod, aerssa, sfemis, sfgtmp, dzlyr, delpin, de_lgth, npts, nlay, nlp1, lprnt, cld_cf, lslwr, hlwc, topflx, sfcflx, cldtau, HLW0, HLWB, FLXPRF, cld_lwp, cld_ref_liq, cld_iwp, cld_ref_ice, cld_rwp, cld_ref_rain, cld_swp, cld_ref_snow, cld_od, errmsg, errflg ) |
| subroutine | taugb02 |
| Band 2: 350-500 cm-1 (low key - h2o; high key - h2o) More... | |
| subroutine | taugb03 |
| Band 3: 500-630 cm-1 (low key - h2o,co2; low minor - n2o); (high key - h2o,co2; high minor - n2o) More... | |
| subroutine | taugb04 |
| Band 4: 630-700 cm-1 (low key - h2o,co2; high key - o3,co2) More... | |
| subroutine | taugb05 |
| Band 5: 700-820 cm-1 (low key - h2o,co2; low minor - o3, ccl4) (high key - o3,co2) More... | |
| subroutine | taugb06 |
| Band 6: 820-980 cm-1 (low key - h2o; low minor - co2) (high key - none; high minor - cfc11, cfc12) More... | |
| subroutine | taugb07 |
| Band 7: 980-1080 cm-1 (low key - h2o,o3; low minor - co2) (high key - o3; high minor - co2) More... | |
| subroutine | taugb08 |
| Band 8: 1080-1180 cm-1 (low key - h2o; low minor - co2,o3,n2o) (high key - o3; high minor - co2, n2o) More... | |
| subroutine | taugb09 |
| Band 9: 1180-1390 cm-1 (low key - h2o,ch4; low minor - n2o) (high key - ch4; high minor - n2o) More... | |
| subroutine | taugb10 |
| Band 10: 1390-1480 cm-1 (low key - h2o; high key - h2o) More... | |
| subroutine | taugb11 |
| Band 11: 1480-1800 cm-1 (low - h2o; low minor - o2) (high key - h2o; high minor - o2) More... | |
| subroutine | taugb12 |
| Band 12: 1800-2080 cm-1 (low - h2o,co2; high - nothing) More... | |
| subroutine | taugb13 |
| Band 13: 2080-2250 cm-1 (low key-h2o,n2o; high minor-o3 minor) More... | |
| subroutine | taugb14 |
| Band 14: 2250-2380 cm-1 (low - co2; high - co2) More... | |
| subroutine | taugb15 |
| Band 15: 2380-2600 cm-1 (low - n2o,co2; low minor - n2) (high - nothing) More... | |
| subroutine | taugb16 |
| Band 16: 2600-3250 cm-1 (low key- h2o,ch4; high key - ch4) More... | |
| subroutine, public | rrtmg_lw::rlwinit (me) |
| This subroutine performs calculations necessary for the initialization of the longwave model, which includes non-varying model variables, conversion factors, and look-up tables. More... | |
| subroutine | rrtmg_lw::cldprop (cfrac, cliqp, reliq, cicep, reice, cdat1, cdat2, cdat3, cdat4, nlay, nlp1, ipseed, dz, de_lgth, cldfmc, taucld ) |
| This subroutine computes the cloud optical depth(s) for each cloudy layer and g-point interval. More... | |
| subroutine | rrtmg_lw::mcica_subcol (cldf, nlay, ipseed, dz, de_lgth, lcloudy ) |
| This suroutine computes sub-colum cloud profile flag array. More... | |
| subroutine | rrtmg_lw::setcoef (pavel, tavel, tz, stemp, h2ovmr, colamt, coldry, colbrd, nlay, nlp1, laytrop, pklay, pklev, jp, jt, jt1, rfrate, fac00, fac01, fac10, fac11, selffac, selffrac, indself, forfac, forfrac, indfor, minorfrac, scaleminor, scaleminorn2, indminor ) |
| This subroutine computes various coefficients needed in radiative transfer calculations. More... | |
| subroutine | rrtmg_lw::rtrn (semiss, delp, cldfrc, taucld, tautot, pklay, pklev, fracs, secdif, nlay, nlp1, totuflux, totdflux, htr, totuclfl, totdclfl, htrcl, htrb ) |
| This subroutine computes the upward/downward radiative fluxes, and heating rates for both clear or cloudy atmosphere. Clouds assumed as randomly overlaping in a vertical column. More... | |
| subroutine | rrtmg_lw::rtrnmr (semiss, delp, cldfrc, taucld, tautot, pklay, pklev, fracs, secdif, nlay, nlp1, totuflux, totdflux, htr, totuclfl, totdclfl, htrcl, htrb ) |
| This subroutine computes the upward/downward radiative fluxes, and heating rates for both clear or cloudy atmosphere. Clouds are assumed as in maximum-randomly overlaping in a vertical column. More... | |
| subroutine | rrtmg_lw::rtrnmc (semiss, delp, cldfmc, taucld, tautot, pklay, pklev, fracs, secdif, nlay, nlp1, totuflux, totdflux, htr, totuclfl, totdclfl, htrcl, htrb ) |
| This subroutine computes the upward/downward radiative fluxes, and heating rates for both clear or cloudy atmosphere.Clouds are treated with the mcica stochastic approach. More... | |
| subroutine | rrtmg_lw::taumol (laytrop, pavel, coldry, colamt, colbrd, wx, tauaer, rfrate, fac00, fac01, fac10, fac11, jp, jt, jt1, selffac, selffrac, indself, forfac, forfrac, indfor, minorfrac, scaleminor, scaleminorn2, indminor, nlay, fracs, tautot ) |
| This subroutine contains optical depths developed for the rapid radiative transfer model. More... | |
| subroutine | taugb01 |
| band 1: 10-350 cm-1 (low key - h2o; low minor - n2); (high key - h2o; high minor - n2) More... | |
1.8.11