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! version 3; Last Modified: May 7, 2008.
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***S/R MFOHRA - CALCULE HUM REL DE HUM SP, TEMP ET PRESSION.
* - (EAU SEULEMENT)
*
#include "phy_macros_f.h"
SUBROUTINE MFOHRA(HR,QQ,TT,PX,LNPS,MODP,NI,NK,N) 7,1
*
#include "impnone.cdk"
*
INTEGER NI, NK, N, MODP
REAL HR(NI,*), QQ(NI,*), TT(NI,*)
REAL PX(*), LNPS(NI,*)
REAL TEMP1,TEMP2
*
*Author
* N. Brunet (Jan91)
*
*Revision
* 001 B. Bilodeau (August 1991)- Adaptation to UNIX
* 002 B. Bilodeau (January 2001) - Automatic arrays
* 003 G. Pellerin (June 2003) - IBM conversion
* - calls to vexp routine (from massvp4 library)
*
*Object
* to calculate relative humidity from specific humidity,
* temperature and pressure(Water phase considered only)
*
*Arguments
*
* - Output -
* HR relative humidity
*
* - Input -
* QQ specific humidity
* TT temperature in Kelvins
* PX see MODP
* LNPS see MODP
* MODP pressure mode (SI units only):
* =0; pressure level in PX
* =1; sigma level in PX and PS(surface pressure) in LNPS
* =2; sigma level in PX and logarithm of sigma level in
* LNPS
* =3; all points of pressure in LNPS(NI,*) in Pascals
* =4; sigma level in PX and logarithm of sigma level in
* LNPS(in millibars unless using SI units)
* =5; logarithm of pressure level in PX(in millibars unless
* using SI units)
* NI horizontal dimension
* NK vertical dimension
* N number of points to process
*
*IMPLICITES
#include "consphy.cdk"
*MODULES
EXTERNAL INCTPHY
*
* FONCTION CALCULANT L'HUMIDITE RELATIVE
* FOHRA(QQQ,TTT,PRS)=DMIN1(DBLE(PRS),FOEFQ(QQQ,PRS))/FOEWA(TTT)
* FONCTION DE VAPEUR SATURANTE (TETENS)
* FOEWA(TTT)=610.78D0*DEXP(17.269D0*(DBLE(TTT)-DBLE(TRPL))/
* W (DBLE(TTT)-35.86D0))
*
**
*
INTEGER K, I
REAL*8 DEPS1,DEPS2,DTRPL,DTEMP
*
************************************************************************
* AUTOMATIC ARRAYS
************************************************************************
*
AUTOMATIC ( PN , REAL , (N) )
AUTOMATIC ( XT , REAL*8 , (NI, NK) )
*
************************************************************************
*
#include "dintern.cdk"
#include "fintern.cdk"
#include "initcph.cdk"
*
DTRPL=DBLE(TRPL)
DEPS1=DBLE(EPS1)
DEPS2=DBLE(EPS2)
*
DO K=1,NK
DO I=1,NI
DTEMP=DBLE(TT(I,K))
XT(I,K)=17.269D0*(DTEMP-DBLE(TRPL))/(DTEMP-35.86D0)
ENDDO
ENDDO
*
CALL VEXP(XT,XT,NI*NK)
*
DO 10 K=1,NK
*
#include "modpr2.cdk"
*
DO 15 I=1,N
TEMP1 = PN(I)
TEMP2 = QQ(I,K)
DTEMP = FOEFQ(TEMP2,TEMP1)
HR(I,K) = DMIN1(DBLE(TEMP1),DTEMP) / (610.78D0*XT(I,K))
15 CONTINUE
10 CONTINUE
*
*
RETURN
CONTAINS
#include "fintern90.cdk"
END