rrtmgp_sw_gas_optics Module Reference

This module contains a routine to initialize the k-distribution data used by the RRTMGP shortwave radiation scheme.

Functions/Subroutines
subroutine	rrtmgp_sw_gas_optics_init (rrtmgp_root_dir, rrtmgp_sw_file_gas, active_gases_array, mpicomm, mpirank, mpiroot, errmsg, errflg)

Variables
real(kind_phys), parameter	tsi_default = 1360.85767381726
real(kind_phys), parameter	mg_default = 0.1567652
real(kind_phys), parameter	sb_default = 902.7126
type(ty_gas_optics_rrtmgp)	sw_gas_props
integer	ntempssw
integer	npresssw
integer	ngptssw
integer	nabsorberssw
integer	nextrabsorberssw
integer	nminorabsorberssw
integer	nmixingfracssw
integer	nlayerssw
integer	nbndssw
integer	npairssw
integer	nminor_absorber_intervals_lowersw
integer	nminor_absorber_intervals_uppersw
integer	ncontributors_lowersw
integer	ncontributors_uppersw
integer, dimension(:), allocatable	kminor_start_lowersw
	Starting index in the [1, nContributors] vector for a contributor.
integer, dimension(:), allocatable	kminor_start_uppersw
	Starting index in the [1, nContributors] vector for a contributor.
integer, dimension(:,:), allocatable	band2gptsw
	Beginning and ending gpoint for each band.
integer, dimension(:,:), allocatable	minor_limits_gpt_lowersw
	Beginning and ending gpoint for each minor interval in lower atmosphere.
integer, dimension(:,:), allocatable	minor_limits_gpt_uppersw
	Beginning and ending gpoint for each minor interval in upper atmosphere.
integer, dimension(:,:,:), allocatable	key_speciessw
	Key species pair for each band.
real(kind_phys)	press_ref_tropsw
	Reference pressure separating the lower and upper atmosphere [Pa].
real(kind_phys)	temp_ref_psw
	Standard spectroscopic reference pressure [Pa].
real(kind_phys)	temp_ref_tsw
	Standard spectroscopic reference temperature [K].
real(kind_phys)	tsi_defaultsw
real(kind_phys)	mg_defaultsw
	Mean value of Mg2 index over the average solar cycle from the NRLSSI2 model of solar variability.
real(kind_phys)	sb_defaultsw
	Mean value of sunspot index over the average solar cycle from the NRLSSI2 model of solar variability.
real(kind_phys), dimension(:), allocatable	press_refsw
	Pressures for reference atmosphere; press_ref(# reference layers) [Pa].
real(kind_phys), dimension(:), allocatable	temp_refsw
	Temperatures for reference atmosphere; temp_ref(# reference layers) [K].
real(kind_phys), dimension(:), allocatable	solar_quietsw
	Spectrally-dependent quiet sun irradiance from the NRLSSI2 model of solar variability.
real(kind_phys), dimension(:), allocatable	solar_facularsw
	Spectrally-dependent facular term from the NRLSSI2 model of solar variability.
real(kind_phys), dimension(:), allocatable	solar_sunspotsw
	Spectrally-dependent sunspot term from the NRLSSI2 model of solar variability.
real(kind_phys), dimension(:,:), allocatable	band_limssw
	Beginning and ending wavenumber [cm -1] for each band.
real(kind_phys), dimension(:,:,:), allocatable	vmr_refsw
	Volume mixing ratios for reference atmosphere.
real(kind_phys), dimension(:,:,:), allocatable	kminor_lowersw
	(transformed from [nTemp x nEta x nGpt x nAbsorbers] array to
real(kind_phys), dimension(:,:,:), allocatable	kminor_uppersw
	(transformed from [nTemp x nEta x nGpt x nAbsorbers] array to
real(kind_phys), dimension(:,:,:), allocatable	rayl_lowersw
	Stored coefficients due to rayleigh scattering contribution.
real(kind_phys), dimension(:,:,:), allocatable	rayl_uppersw
	Stored coefficients due to rayleigh scattering contribution.
real(kind_phys), dimension(:,:,:,:), allocatable	kmajorsw
	Stored absorption coefficients due to major absorbing gases.
character(len=32), dimension(:), allocatable	gas_namessw
	Names of absorbing gases.
character(len=32), dimension(:), allocatable	gas_minorsw
	Name of absorbing minor gas.
character(len=32), dimension(:), allocatable	identifier_minorsw
	Unique string identifying minor gas.
character(len=32), dimension(:), allocatable	minor_gases_lowersw
	Names of minor absorbing gases in lower atmosphere.
character(len=32), dimension(:), allocatable	minor_gases_uppersw
	Names of minor absorbing gases in upper atmosphere.
character(len=32), dimension(:), allocatable	scaling_gas_lowersw
	Absorption also depends on the concentration of this gas.
character(len=32), dimension(:), allocatable	scaling_gas_uppersw
	Absorption also depends on the concentration of this gas.
logical(wl), dimension(:), allocatable	minor_scales_with_density_lowersw
	Density scaling is applied to minor absorption coefficients.
logical(wl), dimension(:), allocatable	minor_scales_with_density_uppersw
	Density scaling is applied to minor absorption coefficients.
logical(wl), dimension(:), allocatable	scale_by_complement_lowersw
	Absorption is scaled by concentration of scaling_gas (F) or its complement (T)
logical(wl), dimension(:), allocatable	scale_by_complement_uppersw
	Absorption is scaled by concentration of scaling_gas (F) or its complement (T)