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rrtm_instructions
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C path: $Source$
C author: $Author$
C revision: $Revision$
C created: $Date$
USER INSTRUCTIONS FOR RRTM
Contents:
1. Instructions for INPUT_RRTM
2. Instructions for IN_CLD_RRTM
INPUT_RRTM Instructions
-------------------------
RECORD 1.1
CXID: 80 characters of user identification (80A1)
CXID(1) is the flag which determines program initialization and termination.
The actual input data stream for RRTM commences with the record
containing a '$' in CXID(1). Any records that are read prior to a
record containing a '$' in CXID(1) are ignored.Since RRTM automatically
recycles and reads Record 1.1 at the end of each run (this allows the
stacking of multiple runs), each subsequent run of RRTM must also have
a '$' in CXID(1) on Record 1.1. In order to effect a normal termination of
RRTM, CXID(1) should be set to '%', on the final record of
the input file. Thus a standard RRTM input file would begin with a '$'
and end with a '%'.
RECORD 1.2
IATM, IXSECT, ISCAT, NUMANGS, IOUT, ICLD
50, 70, 83, 84-85, 88-90, 95
49X, I1, 19X, I1, 12X, I1, I2, 2X, I3, 4X, I1
IATM (0,1) flag for RRTATM
1 = yes
IXSECT (0,1) flag for cross-sections
= 0 no cross-sections included in calculation
= 1 cross-sections included in calculation
ISCAT (0,1,2) flag for radiative transfer solver
= 0 Use RRTM radiative transfer solver (see Mlawer et al., 1997),
only absorption considered (i.e. no scattering).
= 1 Use DISORT radiative transfer solver, only absorption considered
(i.e. no scattering). (Note: This option is significantly slower than
ISCAT = 0 and provides no accuracy benefit. The option is available to facilitate
forcing calculations in conjunction with ISCAT = 2.)
= 2 Use DISORT radiative transfer solver, absorption and scattering
is considered. (Note: Please see instructions for IN_CLD_RRTM for restrictions
when using this option.)
RRTM Reference:
Mlawer, E.J., S.J. Taubman, P.D. Brown, M.J. Iacono and
S.A. Clough: RRTM, a validated correlated-k model for the
longwave. J. Geophys. Res., 102, 16,663-16,682, 1997
DISORT Reference:
Stamnes, K., S.C. Tsay, W. Wiscombe and K. Jayaweera:
A Numerically Stable Algorithm for Discrete-Ordinate-Method
Radiative Transfer in Multiple Scattering and Emitting Layered
Media, Appl. Opt. (June, 1988).
NUMANGS (0,1,2,3,4) flag for number of quadrature angles to use in RT
calculations.
If ISCAT = 0 then the NUMANGS choices are:
NUMANGS = 0 if the radiance is to be computed at 1 angle, the cosine of
which equals 1/1.66 (standard angle in diffusivity approximation)
= n (1-4) if the radiances are to be computed at n angles
chosen such that their cosines have the standard x-axis
values in first-moment Gaussian quadrature. This requires
the computation of one exponential for each angle.
If ISCAT = 1 then the NUMANGS choices correspond to the number of streams
to be used in DISORT. These quadrature angles are not identical to those used in
ISCAT = 0.
NUMANGS = 0 - 4 streams
= 1 - 8 streams
= 2 - 16 streams
IOUT = -1 if no output is to be printed out.
= 0 if the only output is for 10-3250 cm-1.
= n (n = 1-16) if the only output is from band n.
For the wavenumbers for each band, see Table I.
= 99 if output is generated for 17 spectral intervals, one
for the full longwave spectrum (10-3250 cm-1), and one
for each of the 16 bands.
ICLD (0,1,2) flag for clouds
= 0 no cloudy layers in atmosphere
= 1 one or more cloudy layers present in atmosphere. Cloud layers
are treated using a random overlap assmption.
(requires the presence of file IN_CLD_RRTM)
= 2 one or more cloudy layers present in atmosphere. Cloud layers
are treated using a maximum/random overlap assmption.
(requires the presence of file IN_CLD_RRTM)
RECORD 1.4
TBOUND, IEMIS, IREFLECT, (SEMISS(IB),IB=1,16)
1-10, 12, 15, 16-95
E10.3 1X, I1, 2X, I1, 16E5.3
TBOUND temperature at the surface. If input value < 0, then surface temperature
is set to the temperature at the bottom of the first layer (see Record 2.1.1)
IEMIS = 0 each band has surface emissivity equal to 1.0
= 1 each band has the same surface emissivity (equal to SEMISS(1))
= 2 each band has different surface emissivity (for band IB, equal to SEMISS(IB))
IREFLECT = 0 for Lambertian reflection at surface, i.e. reflected radiance
is equal at all angles
= 1 for specular reflection at surface, i.e. reflected radiance at angle
is equal to downward surface radiance at same angle multiplied by
the reflectance
(Note: for each band, surface reflectance = 1 - surface emissivity)
SEMISS the surface emissivity for each band (see Table I). All values must be
greater than 0 and less than or equal to 1. If IEMIS = 1, only
SEMISS(1) is considered. If IEMIS = 2 and no surface emissivity value
is given for SEMISS(IB), a value of 1.0 is used for band IB.
*****************************************************************************
****** these records applicable only if RRTATM not selected (IATM=0) ******
LAYER INPUT (MOLECULES ONLY)
RECORD 2.1
IFORM, NLAYRS, NMOL
2 3-5, 6-10
1X,I1 I3, I5
IFORM (0,1) column amount format flag
= 0 read PAVE, WKL(M,L), WBROADL(L) in F10.4, E10.3, E10.3 formats (default)
= 1 read PAVE, WKL(M,L), WBROADL(L) in E15.7 format
NLAYRS number of layers (maximum of 200)
NMOL value of highest molecule number used (default = 7; maximum of 35)
See Table II for molecule numbers.
RECORD 2.1.1
PAVE, TAVE, PZ(L-1), TZ(L-1), PZ(L), TZ(L)
1-10, 11-20, 44-51, 52-58, 66-73, 74-80
F10.4, F10.4, 23X, F8.3, F7.2, 7X, F8.3, F7.2
PAVE average pressure of layer (millibars) (**If IFORM=1, then PAVE in E15.7 format**)
TAVE average temperature of layer (K)
PZ(L-1) pressure at bottom of layer L
TZ(L-1) temperature at bottom of layer L - used by RRTM for Planck Function Calculation
** NOTE ** PZ(L-1) and TZ(L-1) are only required for the first layer. RRTM assumes that
these quantites are equal to the top of the previous layer for L > 1.
PZ(L) pressure at top of layer L
TZ(L) temperature at top of layer L - used by RRTM for Planck Function Calculation
RECORD 2.1.2
(WKL(M,L), M=1, 7), WBROADL(L)
(8E10.3)
WKL(M,L) column densities or mixing ratios for 7 molecular species (molecules/cm**2)
WBROADL(L) column density for broadening gases (molecules/cm**2)
**NOTE** If IFORM=1, then WKL(M,L) and WBROADL(L) are in 8E15.7 format
RECORD 2.1.3 only if (NMOL .GT . 7) # records depends on NMOL
(WKL(M,L), M=8, NMOL)
(8E10.3)
NMOL is set from LINFIL (TAPE3)
(NMOL limited to 35 in RRTM) **NOTE: If IFORM=1 then WKL(M,L) in 8E15.7 format**
REPEAT RECORDS 2.1.1 through 2.1.3 for the remaining layers (up to NLAYRS)
*****************************************************************************
****** these records applicable only if RRTATM not selected (IATM=0) ******
**************** and cross-sections ARE selected (IXSECT=1) ***************
LAYER INPUT (CROSS-SECTIONS ONLY)
RECORD 2.2
IXMOLS
5
I5
IXMOLS number of cross-section molecules to be inputed (maximum of 35)
RECORD 2.2.1
XSNAME(I), I=1, IXMOLS
(7A10,(/,8A10))
XSNAME name of the cross-section molecules to be used
(See Table III for allowed aliases.)
RECORD 2.2.2
IFRMX
2
1X,I1
IFRMX (0,1) column amount format flag
= 0 read XAMNT(M,L) in E10.3 format (default)
= 1 read XAMNT(M,L) in E15.7 format
RECORD 2.2.3
This record is a dummy record. Its presence is required but it is not read.
RECORD 2.2.4
(XAMNT(I,L), I=1, 7)
(7E10.3)
XAMNT(I,L) column densities or mixing ratios for 7 cross-section molecules (molecules/cm**2)
**NOTE** If IFRMX=1, then XAMNT(I,L) is in 7E15.7 format
RECORD 2.2.5 only if (IXMOL .GT . 7) # records depends on IXMOL
(XAMNT(I,L), I=8, IXMOL)
(8E10.3)
**NOTE: If IFRMX=1 then XAMNT(I,L) in 8E15.7 format**
REPEAT RECORDS 2.2.3 through 2.2.5 for the remaining layers (up to NLAYRS)
*****************************************************************************
******** these records applicable if RRTATM selected (IATM=1) ********
RECORD 3.1
MODEL, IBMAX, NOPRNT, NMOL, IPUNCH, MUNITS, RE, CO2MX
5, 15, 25, 30, 35, 39-40, 41-50, 71-80
I5, 5X, I5, 5X, I5, I5, I5, 3X, I2, F10.3, 20X, F10.3
MODEL selects atmospheric profile
= 0 user supplied atmospheric profile
= 1 tropical model
= 2 midlatitude summer model
= 3 midlatitude winter model
= 4 subarctic summer model
= 5 subarctic winter model
= 6 U.S. standard 1976
IBMAX selects layering for RRTM
= 0 RRTM layers are generated internally (default)
> 0 IBMAX is the number of layer boundaries read in on Record 3.3B which are
used to define the layers used in RRTM calculation
If IBMAX is set to a negative value, the layer boundaries are
specified in PRESSURE (mbars).
NOPRNT = 0 full printout
= 1 selects short printout
NMOL number of molecular species (default = 7; maximum value is 35)
IPUNCH = 0 layer data not written (default)
= 1 layer data written to unit IPU (TAPE7)
MUNITS = 0 write molecular column amounts to TAPE7 (if IPUNCH = 1, default)
= 1 write molecular mixing ratios to TAPE7 (if IPUNCH = 1)
RE radius of earth (km)
defaults for RE=0:
a) MODEL 0,2,3,6 RE = 6371.23 km
b) 1 RE = 6378.39 km
c) 4,5 RE = 6356.91 km
CO2MX mixing ratio for CO2 (ppm). Default is 330 ppm.
Note: if CO2MX > 0. the user input profile values
for CO2 are ignored in Record 3.6.N
REF_LAT latitude of location of calculation (degrees)
defaults for REF_LAT = 0:
a) MODEL 0,2,3,6 REF_LAT = 45.0 degrees
b) MODEL 1 REF_LAT = 15.0
c) MODEL 4,5 REF_LAT = 60.0
-----------------------------------------------------------------------------
RECORD 3.2
HBOUND, HTOA
1-10, 11-20
F10.3, F10.3
HBOUND altitude of the surface (km)
If IBMAX is negative, H1 is provided in pressure units (mbars)
HTOA altitude of the top of the atmosphere (km)
If IBMAX is negative, H2 is provided in pressure units (mbars)
RECORD 3.3 options
RECORD 3.3A For IBMAX = 0 (from RECORD 3.1)
AVTRAT, TDIFF1, TDIFF2, ALTD1, ALTD2
1-10, 11-20, 21-30, 31-40, 41-50
F10.3, F10.3, F10.3, F10.3, F10.3
AVTRAT maximum Voigt width ratio across a layer
(if zero, default = 1.5)
TDIFF1 maximum layer temperature difference at
ALTD1 (if zero, default = 5 K)
TDIFF2 maximum layer temperature difference at
ALTD2 (if zero, default = 8 K)
ALTD1 altitude of TDIFF1 (if zero, default = 0 Km)
ALTD2 altitude of TDIFF2 (if zero, default = 100 Km)
RECORD 3.3B For IBMAX > 0 (from RECORD 3.1)
ZBND(I), I=1, IBMAX altitudes of RRTM layer boundaries
(8F10.3)
If IBMAX < 0
PBND(I), I=1, ABS(IBMAX) pressures of LBLRTM layer boundaries
(8F10.3)
--------------------------------------------------------------------------------
-----------------------------------------------------------------------------
User Defined Atmospheric Profile
-------------------------------- (MODEL = 0) --------------------------------
RECORD 3.4
IMMAX, HMOD
5, 6-29
I5, 3A8
IMMAX number of atmospheric profile boundaries
If IMMAX is set to a negative value, the level boundaries are
specified in PRESSURE (mbars).
HMOD 24 character description of profile
RECORD 3.5
ZM, PM, TM, JCHARP, JCHART, (JCHAR(K),K =1,28)
1-10, 11-20, 21-30, 36, 37, 41 through 68
E10.3, E10.3, E10.3, 5x, A1, A1, 3X, 28A1
ZM boundary altitude (km). If IMMAX < 0, altitude levels are
computed from pressure levels PM. If any altitude levels are
provided, they are ignored if IMMAX < 0 (exception: The
first input level must have an accompanying ZM for input
into the hydrostatic equation)
PM pressure (units and input options set by JCHARP)
TM temperature (units and input options set by JCHART)
JCHARP flag for units and input options for pressure (see Table II)
JCHART flag for units and input options for temperature (see Table II)
JCHAR(K) flag for units and input options for
the K'th molecule (see Table II)
RECORD 3.6.1 ... 3.6.N
VMOL(K), K=1, NMOL
8E10.3
VMOL(K) density of the K'th molecule in units set by JCHAR(K)
REPEAT records 3.5 and 3.6.1 to 3.6.N for each of the remaining IMMAX boundaries
*****************************************************************************
********** these records applicable if RRTATM selected (IATM=1) ***********
**************** and cross-sections ARE selected (IXSECT=1) ***************
RECORD 3.7
IXMOLS, IPRFL, IXSBIN
5, 10, 15
I5, I5, I5
IXMOLS number of cross-section molecules to be inputed (maximum of 35)
IPRFL (0,1)
= 0 user input profile
= 1 standard profile as determined by RRTATM
IXSBIN (0,1) flag to deselect pressure convolution of cross-sections
= 0 cross-sections convolved with pressure (default)
= 1 cross-sections not convolved with pressure
RECORD 3.7.1
XSNAME(I), I=1, IXMOLS
(7A10,(/,8A10))
XSNAME name of the cross-section molecules to be used
(Note: See Table III for allowed aliases.)
-----------------------------------------------------------------------------
User Defined Atmospheric Profile
-------------------------------- (IPRFL = 0) --------------------------------
RECORD 3.8
LAYX, IZORP, XTITLE
5, 10, 11-60
I5, I5 A50
LAYX number of atmospheric profile boundaries
IZORP (0,1) flag which determines value of ZORP on Record 3.8.1
= 0 ZORP is an altitude in KM
= 1 ZORP is a pressure in millibars
XTITLE 50 character description of profile
RECORD 3.8.1
ZORP, (JCHAR(K),K =1,28)
1-10, 16 through 50
F10.3, 5X, 35A1
ZORP boundary altitude (km) or pressure (millibars) as determined by IZORP on Record 3.8
JCHAR(K) flag for units and input options for
the K'th cross-section
JCHAR = 1-1 - default to value for specified model atmosphere
= " ",A - volume mixing ratio (ppmv)
RECORD 3.8.2 ... 3.8.N
DENX(K), K=1, IXMOLS
8E10.3
DENX(K) density of the K'th cross-section in units set by JCHAR(K)
REPEAT records 3.8.1 to 3.8.N for each of the remaining LAYX boundaries
----------------------------------------------------------------------------
TABLE I. RRTM Bands and Included Species
Band Wavenumber 1050 - 96 mb 96 - 0.01 mb Halocarbons
Range (cm-1)
1 10 - 350 H2O,N2~ H2O,N2~ ----
2 350 - 500 H2O H2O ----
3 500 - 630 H2O,CO2,N2O~ H2O,CO2,N2O~ ----
4 630 - 700 H2O,CO2 CO2,O3 ----
5 700 - 820 H2O,CO2,O3~ CO2,O3 CCL4
6 820 - 980 H2O,CO2~ --- CFC11^,CFC12
7 980 - 1080 H2O,O3,CO2~ O3,CO2 ----
8 1080 - 1180 H2O,CO2~,O3~,N2O~ O3,CO2~,N2O~ CFC12,CFC22^
9 1180 - 1390 H2O,CH4,N2O~ CH4,N2O ----
10 1390 - 1480 H2O H2O ----
11 1480 - 1800 H2O,O2~ H2O,O2~ ----
12 1800 - 2080 H2O,CO2 --- ----
13 2080 - 2250 H2O,N2O,CO2~,CO~ O3~ ----
14 2250 - 2380 CO2 CO2 ----
15 2380 - 2600 N2O,CO2,WV~,N2~ --- ----
16 2600 - 3250 H2O,CH4 CH4 ----
~ Included by less rigorous method.
^ The optical depths of these halocarbons are increased to account for other absorption
bands of these species that are not implemented.
TABLE II. Units and input options for the K'th molecule
TABLE II
USER OPTIONS FOR PRESSURE, TEMPERATURE, AND MOLECULAR DENSITY
JCHARP
PRESSURE 1-6 default to value for specified model atmosphere
(JCHARP) " ",A pressure in (mb)
B " " (atm)
C " " (torr)
JCHART
TEMPERATURE 1-6 default to value for specified model atmosphere
(JCHART) " ",A ambient temperature in deg (K)
B " " " " " " (C)
JCHAR(M)
(M): AVAILABLE ( 1) H2O ( 2) CO2 ( 3) O3 ( 4) N2O ( 5) CO ( 6) CH4 ( 7) O2
MOLECULAR SPECIES ( 8) NO ( 9) SO2 (10) NO2 (11) NH3 (12) HNO3 (13) OH (14) HF
(15) HCL (16) HBR (17) HI (18) CLO (19) OCS (20) H2CO (21) HOCL
(22) N2 (23) HCN (24) CH3CL (25) H2O2 (26) C2H2 (27) C2H6 (28) PH3
(29) COF2 (30) SF6 (31) H2S (32) HCOOH (33) EMPTY (34) EMPTY (35) EMPTY
potential choice of units for above species:
JCHAR = 1-6 - default to value for specified model atmosphere
= " ",A - volume mixing ratio (ppmv)
= B - number density (cm-3)
= C - mass mixing ratio (gm/kg)
= D - mass density (gm m-3)
= E - partial pressure (mb)
= F - dew point temp (K) *H2O only*
= G - dew point temp (C) *H2O only*
= H - relative humidity (percent) *H2O only*
= I - available for user definition
JCHAR must be less than "J"
TABLE III. Allowed aliases for cross-sectional molecules.
TABLE III
Cross-Section Molecules and Aliases
-----------------------------------
Alias(1) Alias(2) Alias(3) Alias(4)
---------- ---------- ---------- ----------
CCL4
CCL3F CFCL3 CFC11 F11
CCL2F2 CF2CL2 CFC12 F12
CHCLF2 CHF2CL CFC22 F22
----------------------------------------------------------------------------
****************************************************************************
IN_CLD_RRTM Instructions (this file required if ICLD = 1 in Record 1.2 of INPUT_RRTM)
--------------------------
RECORD C1.1
INFLAG, ICEFLAG, LIQFLAG
5 10 15
3X, I2, 4X, I1, 4X, I1
Note: ICEFLAG and LIQFLAG are required only if INFLAG = 2.
INFLAG = 0 direct specification of optical properties of clouds, no spectral dependence
cloud fraction, cloud optical depth, and (if ISCAT=2) single-scattering albedo,
and phase-function moments are input for each cloudy layer
= 1 calculation of combined ice and liquid cloud optical depths (gray)
as in CCM2; cloud fraction and cloud water path are input for
each cloudy layer (Note: ISCAT must equal 0 or 1).
= 2 calculation of separate ice and liquid cloud optical depths, with
parameterizations determined by values of ICEFLAG and LIQFLAG.
Cloud fraction, cloud water path, cloud ice fraction, and
effective ice radius are input for each cloudy layer for all
parameterizations. If LIQFLAG = 1, effective liquid droplet radius
is also needed.
= 10 direct specification of optical depths of clouds, spectral dependence
cloud fraction, cloud optical depth, and (if ISCAT=2) single-scattering albedo,
and phase-function moments are input for each band and cloudy layer
ICEFLAG = 0 the optical depths (gray) due to ice clouds are computed as in CCM3.
= 1 the optical depths (non-gray) due to ice clouds are computed as closely as
possible to the method in E.E. Ebert and J.A. Curry, JGR, 97, 3831-3836 (1992).
= 2 the optical properties (non-gray) due to ice clouds are computed by a method
based on the parameterization used in the radiative transfer model Streamer
(reference: Key. J., Streamer User's Guide, Cooperative Institute for
Meteorological Satellite Studies, 2001, 96 pp.), which is closely related
to the parameterization of water clouds due to Hu and Stamnes (see below).
= 3 the optical properties (non-gray) due to ice clouds are computed by a method
based on the parameterization given in Fu et al., J. Clim.,11,2223-2237 (1998).
LIQFLAG = 0 the optical depths (gray) due to water clouds are computed as in CCM3.
= 1 the optical depths (non-gray) due to water clouds are computed by a method
based on the parameterization of water clouds due to Y.X. Hu and K. Stamnes,
J. Clim., 6, 728-742 (1993).
NOTE: Scattering properties for the liquid water parameterizations are not yet
available in RRTM. Must use ISCAT = 0 or ISCAT = 1 option when LIQFLAG = 0 or 1.
These methods are further detailed in the comments in the routine 'cldprop.f'.
RECORD C1.2 (for INFLAG = 1 or 2)
(one record for each cloudy layer)
TESTCHAR, LAY, CLDFRAC, CWP, FRACICE, EFFSIZEICE, EFFSIZELIQ
1, 3-5, 6-15, 16-25, 26-35, 36-45, 46-55
A1, 1X, I3, E10.5, E10.5, E10.5, E10.5, E10.5
TESTCHAR control character -- if equal to '%', cloud input processing
is terminated
LAY layer number of cloudy layer. The layer numbering refers to the
ordering for the upward radiative transfer, i.e. botton to top.
For IATM = 0 (Record 1.2), each layer's number is equal to the
position of its Record 2.1.1 in the grouping of these records.
For example, the second Record 2.1.1 occurring after Record 2.1
corresponds to the second layer. For IATM = 1 (Record 1.2) and
IBMAX > 0 (Record 3.1), layer n corresponds to the region between
altitudes n and n+1 in the list of layer boundaries in Record 3.3B.
For IATM = 1 (Record 1.2) and IBMAX = 0 (Record 3.1), the layer
numbers can be determined by running RRTM for the cloudless case
and examining the TAPE6 output from this run.
CLDFRAC cloud fraction for the layer
CWP (INFLAG = 1 or 2) cloud water path for the layer (g/m2)
FRACICE (INFLAG = 2) fraction of the layer's cloud water path in the form
of ice particles
EFFSIZEICE (INFLAG = 2 and ICEFLAG = 2) Effective radius of spherical
ice crystals, re (see STREAMER manual for defition of this parameter)
Valid sizes are 5.0 - 131.0 microns.
(INFLAG = 2 and ICEFLAG = 3) Generalized effective size of hexagonal
ice crystals, dge (see Q. Fu, 1996, for definition of this parameter)
Valid sizes are 5.0 - 140.0 microns.
NOTE: The size descriptions for the two iceflag options are NOT
equivalent. See the particular references for the appropriate definition.
EFFSIZELIQ (INFLAG = 2 and LIQFLAG = 1) liquid droplet effective radius (microns)
RECORD C1.3 (for INFLAG = 0 or 10)
(one record for each cloudy layer; if INFLAG = 10, each C1.3 record must be followed by 15 C1.3a records)
TESTCHAR, LAY, CLDFRAC, TAUCLD, SINGLE-SCATTERING ALBEDO, PMOM(0:NSTR)
1, 3-5, 6-15, 16-25, 26-35, 36-196
A1, 1X, I3, E10.5, E10.5, E10.5, 17E10.5
TESTCHAR control character -- if equal to '%', cloud input processing is terminated
LAY layer number of cloudy layer. The layer numbering refers to the
ordering for the upward radiative transfer, i.e. botton to top.
For IATM = 0 (Record 1.2), each layer's number is equal to the
position of its Record 2.1.1 in the grouping of these records.
For example, the second Record 2.1.1 occurring after Record 2.1
corresponds to the second layer. For IATM = 1 (Record 1.2) and
IBMAX > 0 (Record 3.1), layer n corresponds to the region between
altitudes n and n+1 in the list of layer boundaries in Record 3.3B.
For IATM = 1 (Record 1.2) and IBMAX = 0 (Record 3.1), the layer
numbers can be determined by running RRTM for the cloudless case
and examining the TAPE6 output from this run.
CLDFRAC cloud fraction for the layer
TAUCLD total (ice and water) optical depth for the layer
for Band 1; if INFLAG = 0, this optical depth is used for all bands
SINGLE-SCATTERING Single-scattering albedo for cloudy layer (unitless);
ALBEDO if INFLAG = 0, this value is used for all bands
(only used for ISCAT = 2)
PMOM Moments of the phase function, from 0 to NSTR. (unitless)
if INFLAG = 0, this value is used for all bands
(only used for ISCAT = 2)
RECORD C1.3a (for INFLAG = 10)
(15 records for each cloudy layer must follow each Recod C1.3 and apply to the layer listed
there; each Record C1.3a corresponds to a separate RRTM band -- the first record to Band2, etc.)
TAUCLD, SINGLE-SCATTERING ALBEDO, PMOM(0:NSTR)
16-25, 26-35, 36-196
15X, E10.5, E10.5, 16E10.5
TAUCLD total (ice and water) optical depth for the band and layer
SINGLE-SCATTERING Single-scattering albedo for band and layer (unitless)
ALBEDO
(only used for ISCAT = 2)
PMOM Moments of the phase function for the band and layer, from 0 to NSTR. (unitles)
(only used for ISCAT = 2)