RRTMG Surface Module

This module sets up surface albedo for sw radiation and surface emissivity for lw radiation. More...

Detailed Description

Version

NCEP-Radiation_surface v5.1 Nov 2012

In the module, the externally callable subroutines are :

• sfc_init(): initialization radiation surface data
• setalb(): set up four-component surface albedoes
• setemis(): set up surface emissivity for lw radiation

Modules
module	module_radiation_surface

Variables
integer, parameter, public	module_radiation_surface::nf_albd = 4
	number of surface albedo components More...
integer, parameter, public	module_radiation_surface::imxems = 360
	number of longtitude points in global emis-type map More...
integer, parameter, public	module_radiation_surface::jmxems = 180
	number of latitude points in global emis-type map More...
real(kind=kind_phys), parameter	module_radiation_surface::f_zero = 0.0
real(kind=kind_phys), parameter	module_radiation_surface::f_one = 1.0
real(kind=kind_phys), parameter	module_radiation_surface::rad2dg = 180.0 / con_pi
integer, dimension(:,:), allocatable	module_radiation_surface::idxems
	global surface emissivity index array More...
integer	module_radiation_surface::iemslw = 0
	global surface emissivity control flag set up in 'sfc_init' More...
subroutine, public	module_radiation_surface::sfc_init (me)
	This subroutine is the initialization program for surface radiation related quantities (albedo, emissivity, etc.) More...
subroutine, public	module_radiation_surface::setalb (slmsk, snowf, sncovr, snoalb, zorlf, coszf, tsknf, tairf, hprif, alvsf, alnsf, alvwf, alnwf, facsf, facwf, fice, tisfc, IMAX, albPpert, pertalb, sfcalb )
	This subroutine computes four components of surface albedos (i.e., vis-nir, direct-diffused) according to control flag ialbflg. 1) climatological surface albedo scheme ([9]) 2) MODIS retrieval based scheme from Boston univ. More...
subroutine, public	module_radiation_surface::setemis (xlon, xlat, slmsk, snowf, sncovr, zorlf, tsknf, tairf, hprif, IMAX, sfcemis )
	This subroutine computes surface emissivity for LW radiation. More...