C $Header: /u/gcmpack/MITgcm/pkg/cheapaml/cheapaml_readparms.F,v 1.13 2014/05/27 23:41:28 jmc Exp $
C $Name: $
#include "CHEAPAML_OPTIONS.h"
SUBROUTINE CHEAPAML_READPARMS( myThid )
C *==========================================================*
C | SUBROUTINE CHEAPAML_READPARMS |
C | o Routine to initialize CHEAPAML variables and consts. |
C *==========================================================*
IMPLICIT NONE
C === Global variables ===
#include "SIZE.h"
#include "EEPARAMS.h"
#include "PARAMS.h"
#include "CHEAPAML.h"
C === Routine arguments ===
INTEGER myThid
C === Local variables ===
C msgBuf :: Informational/error message buffer
C iUnit :: Work variable for IO unit number
CHARACTER*(MAX_LEN_MBUF) msgBuf
INTEGER iUnit
C-- Bulk Formula parameter
NAMELIST //CHEAPAML_CONST
& cheapaml_ntim, cheapaml_mask_width,
& cheapaml_h, cheapaml_kdiff,
& cheapaml_taurelax,
& cheapaml_taurelaxocean,
& cdrag_1,cdrag_2,cdrag_3,
& rhoa, cpair, stefan, gasR, xkar,
& dsolms,dsolmn,zu,zt,zq,
& xphaseinit,gamma_blk,humid_fac,p0,
& cheap_pr1,cheap_pr2
NAMELIST //CHEAPAML_PARM01
& periodicExternalForcing_cheap,
& externForcingPeriod_cheap,
& externForcingCycle_cheap,
& AirTempFile,
& SolarFile,
& UWindFile,
& VWindFile,
& TrFile,
& QrFile,
& AirQFile,
& UStressFile, VStressFile,
& WaveHFile,WavePFile,
& TracerFile,TracerRfile,
& cheapMaskFile,cheap_hFile,
& cheap_clFile,cheap_dlwFile,
& cheap_prFile
NAMELIST //CHEAPAML_PARM02
& cheapamlXperiodic,
& cheapamlYperiodic,
& useFreshWaterFlux,
& useFluxLimit,
& FluxFormula,WaveModel,
& useStressOption,
& useCheapTracer ,
& useTimeVarBLH,
& useClouds,
& useDLongWave
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
IF ( .NOT.useCheapAML ) THEN
C- pkg CHEAPAML is not used
_BEGIN_MASTER(myThid)
C- Track pkg activation status:
C print a (weak) warning if data.cheapaml is found
CALL PACKAGES_UNUSED_MSG( 'useCheapAML', ' ', ' ' )
_END_MASTER(myThid)
RETURN
ENDIF
_BEGIN_MASTER(myThid)
WRITE(msgBuf,'(A)') ' BULKF_READPARMS: opening data.cheapaml'
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
CALL OPEN_COPY_DATA_FILE(
I 'data.cheapaml', 'CHEAPAML_READPARMS',
O iUnit,
I myThid )
C-- Hard-coded values (not in any namelist):
C coeff. used to compute saturation specific humidity (not in namelist)
ssq0 = 3.797915 _d 0
ssq1 = 7.93252 _d -6
ssq2 = 2.166847 _d -3
C-- Default values
C- Physical constant :
cheapaml_ntim = 5
cheapaml_h=1000. _d 0
cheapaml_kdiff=1. _d 4
cheapaml_taurelax = .1 _d 0
cheapaml_taurelaxocean = .0 _d 0
cheapaml_mask_width = 0
rhoa = 1.3 _d 0
cpair = 1004. _d 0
stefan = 5.67 _d -8
dsolms = 50. _d 0
dsolmn = 25. _d 0
C heights of variables
zu=10. _d 0
zt=zu
zq=zu
xphaseinit = 0. _d 0
cdrag_1=0.0027 _d 0
cdrag_2=0.000142 _d 0
cdrag_3=0.0000764 _d 0
C gas constant
gasR=287.04 _d 0
C atmospheric adiabatic lapse rate
gamma_blk=0.0098 _d 0
C humidity factor for computing virtual potential temperature
humid_fac=0.606 _d 0
C surface pressure in mb
p0=1000. _d 0
C latent heat (J/kg)
lath=2.5 _d 6
C von Karman constant
xkar=0.4 _d 0
C periodic forcing
periodicExternalForcing_cheap = periodicExternalForcing
externForcingPeriod_cheap = externForcingPeriod
externForcingCycle_cheap = externForcingCycle
C precipitation time constant
cheap_pr1 = 2*3600.0 _d 0
cheap_pr2 = 36*3600.0 _d 0
C- Input data files names :
AirTempFile=' '
AirQFile=' '
SolarFile=' '
UWindFile=' '
VWindFile=' '
TrFile=' '
QrFile=' '
WaveHFile=' '
WavePFile=' '
TracerFile=' '
TracerRFile=' '
cheapMaskFile=' '
cheap_hFile =' '
cheap_prFile =' '
cheap_clFile =' '
cheap_dlwFile =' '
FluxFormula='COARE3'
WaveModel='Smith'
C- Assumes domain (with land) is periodic in both direction
C (consitent with default EXCH setting)
c cheapamlXperiodic = .TRUE.
c cheapamlYperiodic = .TRUE.
C note: for backward compatibility, switch to non periodic domain:
cheapamlXperiodic = .FALSE.
cheapamlYperiodic = .FALSE.
C- e-p option turned off by default
useFreshWaterFlux=.TRUE.
C- turn off flux limiting advection by default
useFluxLimit=.FALSE.
C- turn off stress option by default
useStressOption=.FALSE.
C- turn off passive tracer option by default
useCheapTracer=.FALSE.
C- turn off time varying BL height option by default
useTimeVarBLH=.FALSE.
C- turn off clouds option by default
useClouds=.FALSE.
C- use imported downward longwave
useDLongWave=.FALSE.
C-- Read parameters from open data file
READ(UNIT=iUnit,NML=CHEAPAML_CONST)
WRITE(msgBuf,'(A)') ' CHEAPAML_READPARMS: read CHEAPAML_CONST'
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
C-- Read parameters from open data file
READ(UNIT=iUnit,NML=CHEAPAML_PARM01)
WRITE(msgBuf,'(A)') ' CHEAPAML_READPARMS: read CHEAPAML_PARM01'
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
C-- Read parameters from open data file
READ(UNIT=iUnit,NML=CHEAPAML_PARM02)
WRITE(msgBuf,'(A)') ' CHEAPAML_READPARMS: read CHEAPAML_PARM02'
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit,
& SQUEEZE_RIGHT, myThid )
C-- Close the open data file
CLOSE(iUnit)
C compute derivative values
C energy flux conversion factor
xef=1. _d 0 /rhoa/cpair
C inverse of layer thickness
hm=1. _d 0/cheapaml_h
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
iUnit = standardMessageUnit
WRITE(iUnit,*) 'Caml: ntim =',cheapaml_ntim
WRITE(iUnit,*) 'Caml: mask_w =',cheapaml_mask_width
WRITE(iUnit,*) 'Caml: h =',cheapaml_h
WRITE(iUnit,*) 'Caml: kdiff =',cheapaml_kdiff
WRITE(iUnit,*) 'Caml: taurelax =',cheapaml_taurelax, ' (days)'
WRITE(iUnit,*) 'Caml: trelaxoce=',cheapaml_taurelaxocean,' (days)'
WRITE(iUnit,*) 'Caml: rhoa =',rhoa
WRITE(iUnit,*) 'Caml: cpair =',cpair
WRITE(iUnit,*) 'Caml: stefan =',stefan
WRITE(iUnit,*) 'Caml: cheapamlXperiodic =',cheapamlXperiodic
WRITE(iUnit,*) 'Caml: cheapamlYperiodic =',cheapamlYperiodic
WRITE(iUnit,*) 'Caml: useFreshWaterFlux =',useFreshWaterFlux
WRITE(iUnit,*) 'Caml: useFluxLimit =',useFluxLimit
WRITE(iUnit,*) 'Caml: useStressOption =',useStressOption
WRITE(iUnit,*) 'Caml: useCheapTracer =',useCheapTracer
WRITE(iUnit,*) 'Caml: useTimeVarBLH =',useTimeVarBLH
WRITE(iUnit,*) 'Caml: useClouds =',useClouds
WRITE(iUnit,*) 'Caml: useDlongwave =',useDLongWave
C---+----1----+----2----+----3----+----4----+----5----+----6----+----7-|--+----|
_END_MASTER(myThid)
C-- Everyone else must wait for the parameters to be loaded
_BARRIER
RETURN
END