Changeset 1992 for LMDZ5/trunk/libf/phylmd/clift.F90

Timestamp:

Mar 5, 2014, 2:19:12 PM (10 years ago)

Author:

lguez

Message:

Converted to free source form files in libf/phylmd which were still in
fixed source form. The conversion was done using the polish mode of
the NAG Fortran Compiler.

In addition to converting to free source form, the processing of the
files also:

-- indented the code (including comments);

-- set Fortran keywords to uppercase, and set all other identifiers
to lower case;

-- added qualifiers to end statements (for example "end subroutine
conflx", instead of "end");

-- changed the terminating statements of all DO loops so that each
loop ends with an ENDDO statement (instead of a labeled continue).

-- replaced #include by include.

File:

• LMDZ5/trunk/libf/phylmd/clift.F90 (moved) (moved from LMDZ5/trunk/libf/phylmd/clift.F) (1 diff)

LMDZ5/trunk/libf/phylmd/clift.F90

@@ -1 @@
-!
+
 ! $Header$
-!
-        SUBROUTINE CLIFT (P,T,RR,RS,PLCL,DPLCLDT,DPLCLDQ)
-C***************************************************************
-C*                                                             *
-C* CLIFT : COMPUTE LIFTING CONDENSATION LEVEL AND ITS          *
-C*         DERIVATIVES RELATIVE TO T AND R                     *
-C*   (WITHIN 0.2% OF FORMULA OF BOLTON, MON. WEA. REV.,1980)   *
-C*                                                             *
-C* written by   : GRANDPEIX Jean-Yves, 17/11/98, 12.39.01      *
-C* modified by :                                               *
-C***************************************************************
-C*
-C*Arguments :
-C*
-C* Input :  P = pressure of level from wich lifting is performed
-C*          T = temperature of level P
-C*          RR = vapour mixing ratio at level P
-C*          RS = vapour saturation mixing ratio at level P
-C*
-C* Output : PLCL = lifting condensation level
-C*          DPLCLDT = derivative of PLCL relative to T
-C*          DPLCLDQ = derivative of PLCL relative to R
-C*
-ccccccccccccccccccccccc
-c constantes coherentes avec le modele du Centre Europeen
-c      RD = 1000.0 * 1.380658E-23 * 6.0221367E+23 / 28.9644
-c      RV = 1000.0 * 1.380658E-23 * 6.0221367E+23 / 18.0153
-c      CPD = 3.5 * RD
-c      CPV = 4.0 * RV
-c      CL = 4218.0
-c      CI=2090.0
-c      CPVMCL=CL-CPV
-c      CLMCI=CL-CI
-c      EPS=RD/RV
-c      ALV0=2.5008E+06
-c      ALF0=3.34E+05
-c
-c on utilise les constantes thermo du Centre Europeen: (sb)
-c
-#include "YOMCST.h"
-c
-       CPD = RCPD
-       CPV = RCPV
-       CL = RCW
-       CPVMCL = CL-CPV
-       EPS = RD/RV
-       ALV0 = RLVTT
-c
-c
-c      Bolton formula coefficients :
-      A = 1669.0
-      B = 122.0
-c
-      RH=RR/RS
-      CHI=T/(A-B*RH-T)
-      PLCL=P*(RH**CHI)
-c
-      ALV = ALV0 - CPVMCL*(T-273.15)
-c
-c -- sb: correction:
-c       DPLCLDQ = PLCL*CHI*( 1./RR - B*CHI/T/RS*ALOG(RH) )
-      DPLCLDQ = PLCL*CHI*( 1./RR + B*CHI/T/RS*ALOG(RH) )
-c sb --
-c
-      DPLCLDT = PLCL*CHI*((A-B*RH*(1.+ALV/RV/T))/T**2*CHI*ALOG(RH)
-     $                    - ALV/RV/T**2 )
-c
-c
-      RETURN
-      END
+
+SUBROUTINE clift(p, t, rr, rs, plcl, dplcldt, dplcldq)
+  ! ***************************************************************
+  ! *                                                             *
+  ! * CLIFT : COMPUTE LIFTING CONDENSATION LEVEL AND ITS          *
+  ! *         DERIVATIVES RELATIVE TO T AND R                     *
+  ! *   (WITHIN 0.2% OF FORMULA OF BOLTON, MON. WEA. REV.,1980)   *
+  ! *                                                             *
+  ! * written by   : GRANDPEIX Jean-Yves, 17/11/98, 12.39.01      *
+  ! * modified by :                                               *
+  ! ***************************************************************
+  ! *
+  ! *Arguments :
+  ! *
+  ! * Input :  P = pressure of level from wich lifting is performed
+  ! *          T = temperature of level P
+  ! *          RR = vapour mixing ratio at level P
+  ! *          RS = vapour saturation mixing ratio at level P
+  ! *
+  ! * Output : PLCL = lifting condensation level
+  ! *          DPLCLDT = derivative of PLCL relative to T
+  ! *          DPLCLDQ = derivative of PLCL relative to R
+  ! *
+  ! cccccccccccccccccccccc
+  ! constantes coherentes avec le modele du Centre Europeen
+  ! RD = 1000.0 * 1.380658E-23 * 6.0221367E+23 / 28.9644
+  ! RV = 1000.0 * 1.380658E-23 * 6.0221367E+23 / 18.0153
+  ! CPD = 3.5 * RD
+  ! CPV = 4.0 * RV
+  ! CL = 4218.0
+  ! CI=2090.0
+  ! CPVMCL=CL-CPV
+  ! CLMCI=CL-CI
+  ! EPS=RD/RV
+  ! ALV0=2.5008E+06
+  ! ALF0=3.34E+05
+
+  ! on utilise les constantes thermo du Centre Europeen: (sb)
+
+  include "YOMCST.h"
+
+  cpd = rcpd
+  cpv = rcpv
+  cl = rcw
+  cpvmcl = cl - cpv
+  eps = rd/rv
+  alv0 = rlvtt
+
+
+  ! Bolton formula coefficients :
+  a = 1669.0
+  b = 122.0
+
+  rh = rr/rs
+  chi = t/(a-b*rh-t)
+  plcl = p*(rh**chi)
+
+  alv = alv0 - cpvmcl*(t-273.15)
+
+  ! -- sb: correction:
+  ! DPLCLDQ = PLCL*CHI*( 1./RR - B*CHI/T/RS*ALOG(RH) )
+  dplcldq = plcl*chi*(1./rr+b*chi/t/rs*alog(rh))
+  ! sb --
+
+  dplcldt = plcl*chi*((a-b*rh*(1.+alv/rv/t))/t**2*chi*alog(rh)-alv/rv/t**2)
+
+
+  RETURN
+END SUBROUTINE clift