source: LMDZ5/trunk/libf/dyn3dpar/exner_milieu_p_m.F90 @ 2021

Last change on this file since 2021 was 2021, checked in by lguez, 10 years ago

Removed unused variables pks, pk, pkf from main program unit gcm.

Encapsulated procedures exner_hyb, exner_hyb_p, exner_hyb_loc,
exner_milieu, exner_milieu_p and exner_milieu_loc into
modules. (Compulsory to allow optional arguments.)

In the procedures exner_hyb, exner_hyb_p, exner_hyb_loc, donwgraded
arguments alpha and beta to local variables. In exner_milieu,
exner_milieu_p and exner_milieu_loc, removed beta altogether. In the
six procedures exner_*, made pkf an optional argument. Made some
cosmetic modifications in order to keep the six procedures exner_* as
close as possible.

In the six procedures exner_*, removed the averaging of pks at the
poles: this is not useful because ps is already the same at all
longitudes at the poles. This modification changes the results of the
program. Motivation: had to do this for exner_hyb because we call it
from test_disvert with a few surface pressure values.

In all the procedures calling exner_*, removed the variables alpha and
beta. Also removed variables alpha and beta from module leapfrog_mod
and from module call_calfis_mod.

Removed actual argument pkf in call to exner_hyb* and exner_milieu*
from guide_interp, guide_main, iniacademic and iniacademic_loc (pkf
was not used in those procedures).

Argument workvar of startget_dyn is used only if varname is tpot or

  1. When varname is tpot or q, the actual argument associated to

workvar in etat0_netcdf is not y. So y in etat0_netcdf is a
place-holder, never used. So we remove optional argument y in the
calls to exner_hyb and exner_milieu from etat0_netcdf.

Created procedure test_disvert, called only by etat0_netcdf. This
procedure tests the order of pressure values at half-levels and full
levels.

  • Property copyright set to
    Name of program: LMDZ
    Creation date: 1984
    Version: LMDZ5
    License: CeCILL version 2
    Holder: Laboratoire de m\'et\'eorologie dynamique, CNRS, UMR 8539
    See the license file in the root directory
File size: 4.3 KB
Line 
1module exner_milieu_p_m
2
3  IMPLICIT NONE
4
5contains
6
7  SUBROUTINE  exner_milieu_p ( ngrid, ps, p, pks, pk, pkf )
8    !
9    !     Auteurs :  F. Forget , Y. Wanherdrick
10    ! P.Le Van  , Fr. Hourdin  .
11    !    ..........
12    !
13    !    ....  ngrid, ps,p             sont des argum.d'entree  au sous-prog ...
14    !    ....  pks,pk,pkf   sont des argum.de sortie au sous-prog ...
15    !
16    !   ************************************************************************
17    !    Calcule la fonction d'Exner pk = Cp * (p/preff) ** kappa , aux milieux des
18    !    couches .   Pk(l) sera calcule aux milieux  des couches l ,entre les
19    !    pressions p(l) et p(l+1) ,definis aux interfaces des llm couches .
20    !   ************************************************************************
21    !  .. N.B : Au sommet de l'atmosphere,  p(llm+1) = 0. , et ps et pks sont
22    !    la pression et la fonction d'Exner  au  sol  .
23    !
24    !     WARNING : CECI est une version speciale de exner_hyb originale
25    !               Utilise dans la version martienne pour pouvoir
26    !               tourner avec des coordonnees verticales complexe
27    !              => Il ne verifie PAS la condition la proportionalite en
28    !              energie totale/ interne / potentielle (F.Forget 2001)
29    !    ( voir note de Fr.Hourdin )  ,
30    !
31    USE parallel_lmdz
32    !
33    include "dimensions.h"
34    include "paramet.h"
35    include "comconst.h"
36    include "comgeom.h"
37    include "comvert.h"
38    include "serre.h"
39
40    INTEGER  ngrid
41    REAL p(ngrid,llmp1),pk(ngrid,llm)
42    REAL, optional:: pkf(ngrid,llm)
43    REAL ps(ngrid),pks(ngrid)
44
45    !    .... variables locales   ...
46
47    INTEGER l, ij
48    REAL dum1
49
50    logical,save :: firstcall=.true.
51    !$OMP THREADPRIVATE(firstcall)
52    character(len=*),parameter :: modname="exner_milieu_p"
53
54    ! Sanity check
55    if (firstcall) then
56       ! sanity checks for Shallow Water case (1 vertical layer)
57       if (llm.eq.1) then
58          if (kappa.ne.1) then
59             call abort_gcm(modname, &
60                  "kappa!=1 , but running in Shallow Water mode!!",42)
61          endif
62          if (cpp.ne.r) then
63             call abort_gcm(modname, &
64                  "cpp!=r , but running in Shallow Water mode!!",42)
65          endif
66       endif ! of if (llm.eq.1)
67
68       firstcall=.false.
69    endif ! of if (firstcall)
70
71    !$OMP BARRIER
72
73    ! Specific behaviour for Shallow Water (1 vertical layer) case:
74    if (llm.eq.1) then
75
76       ! Compute pks(:),pk(:),pkf(:)
77       ijb=ij_begin
78       ije=ij_end
79       !$OMP DO SCHEDULE(STATIC)
80       DO ij=ijb, ije
81          pks(ij) = (cpp/preff) * ps(ij)
82          pk(ij,1) = .5*pks(ij)
83          if (present(pkf)) pkf(ij,1)=pk(ij,1)
84       ENDDO
85       !$OMP ENDDO
86
87       !$OMP BARRIER
88       if (present(pkf)) then
89          jjb=jj_begin
90          jje=jj_end
91          CALL filtreg_p ( pkf,jjb,jje, jmp1, llm, 2, 1, .TRUE., 1 )
92       end if
93
94       ! our work is done, exit routine
95       return
96    endif ! of if (llm.eq.1)
97
98    ! General case:
99
100    !     -------------
101    !     Calcul de pks
102    !     -------------
103
104    ijb=ij_begin
105    ije=ij_end
106
107    !$OMP DO SCHEDULE(STATIC)
108    DO   ij  = ijb, ije
109       pks(ij) = cpp * ( ps(ij)/preff ) ** kappa
110    ENDDO
111    !$OMP ENDDO
112    ! Synchro OPENMP ici
113
114    !$OMP BARRIER
115    !
116    !
117    !    .... Calcul de pk  pour la couche l
118    !    --------------------------------------------
119    !
120    dum1 = cpp * (2*preff)**(-kappa)
121    DO l = 1, llm-1
122       !$OMP DO SCHEDULE(STATIC)
123       DO   ij   = ijb, ije
124          pk(ij,l) = dum1 * (p(ij,l) + p(ij,l+1))**kappa
125       ENDDO
126       !$OMP ENDDO NOWAIT
127    ENDDO
128
129    !    .... Calcul de pk  pour la couche l = llm ..
130    !    (on met la meme distance (en log pression)  entre Pk(llm)
131    !    et Pk(llm -1) qu'entre Pk(llm-1) et Pk(llm-2)
132
133    !$OMP DO SCHEDULE(STATIC)
134    DO   ij   = ijb, ije
135       pk(ij,llm) = pk(ij,llm-1)**2 / pk(ij,llm-2)
136    ENDDO
137    !$OMP ENDDO NOWAIT       
138
139    if (present(pkf)) then
140       !    calcul de pkf
141
142       DO l = 1, llm
143          !$OMP DO SCHEDULE(STATIC)
144          DO   ij   = ijb, ije
145             pkf(ij,l)=pk(ij,l)
146          ENDDO
147          !$OMP ENDDO NOWAIT
148       ENDDO
149
150       !$OMP BARRIER
151
152       jjb=jj_begin
153       jje=jj_end
154       CALL filtreg_p ( pkf,jjb,jje, jmp1, llm, 2, 1, .TRUE., 1 )
155    end if
156
157  END SUBROUTINE exner_milieu_p
158
159end module exner_milieu_p_m
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