GFS Operational Physics Documentation  gsm/branches/DTC/phys-doc-all phys-doc-all R82971

This module sets up absorption coefficients for band 16: 2600-3000 cm-1 (low - h2o, ch4; high - /) More...

Variables

integer, public msa16
 MSA16=585.
 
minor gas mapping level:
integer, public msb16
 MSB16=235.
 
integer, public msf16
 MSF16=10.
 
integer, public mfr16
 MFR16=4.
 
integer, public maf16
 MAF16=9.
 
real(kind=kind_phys), dimension(ng16, mfr16), public forref
 the array forref contains the coefficient of the water vapor foreign-continuum (including the energy term). the first index refers to reference temperature (296,260,224,260) and pressure (970,475,219,3 mbar) levels. the second index runs over the g-channel (1 to NG16=2).
 
real(kind=kind_phys), dimension(ng16, msa16), public absa
 the array absa(NG16,585) = ka(NG16,9,5,13) contains absorption coefs at the NG16=2 g-intervals for a range of pressure levels > ~100mb, temperatures, and ratios of water vapor to co2. the first index in the array, js, runs from 1 to 9, and corresponds to different column amount ratios, as expressed through the binary species parameter eta, defined as eta = gas1/(gas1+(rat)*gas2), where rat is the ratio of the reference mls column amount value of gas1 to that of gas2. the 2nd index in the array, jt, which runs from 1 to 5, corresponds to different temperatures. more specifically, jt = 1-5 means that the data are for the corresponding temperature of tref-30, tref-15, tref, tref+15, and tref+30, respectively. the third index, jp, runs from 1 to 13 and refers to the reference pressure level (e.g. jp = 1 is for a pressure of 1053.63 mb). the fourth index, ig, goes from 1 to NG16=2, and tells us which g-interval the absorption coefficients are for.
 
real(kind=kind_phys), dimension(ng16, msb16), public absb
 the array absb(NG16,235) = kb(NG16,5,13:59) contains absorption coefs at the NG16=2 chosen g-values for a range of pressure levels< ~100mb and temperatures. the first index in the array, jt, which runs from 1 to 5, corresponds to different temperatures. more specifically, jt = 1-5 means that the data are for the corresponding temperature of tref-30, tref-15, tref, tref+15, and tref+30, respectively. the second index, jp, runs from 13 to 59 and refers to the jpth reference pressure level (see taumol.f for the value of these pressure levels in mb). the third index, ig, goes from 1 to NG16=2, and tells us which g-interval the absorption coefficients are for.
 
real(kind=kind_phys), dimension(ng16, msf16), public selfref
 the array selfref contains the coefficient of the water vapor self-continuum (including the energy term). the first index refers to temperature in 7.2 degree increments. for instance, jt = 1 refers to a temperature of 245.6, jt = 2 refers to 252.8, etc. the second index runs over the g-channel (1 to NG16=2).
 
real(kind=kind_phys), dimension(ng16, maf16), public fracrefa
 planck fraction mapping level: p = 387.6100 mbar, t = 250.17 k
 
real(kind=kind_phys), dimension(ng16), public fracrefb
 planck fraction mapping level : p=95.58350 mb, t = 215.70 k
 

Detailed Description

This module sets up absorption coefficients for band 16: 2600-3000 cm-1 (low - h2o, ch4; high - /)