source: LMDZ5/trunk/libf/dynphy_lonlat/phylmd/etat0phys_netcdf.F90 @ 2588

Last change on this file since 2588 was 2531, checked in by oboucher, 8 years ago

Needed for rev2530.

File size: 20.5 KB
Line 
1MODULE etat0phys
2!
3!*******************************************************************************
4! Purpose: Create physical initial state using atmospheric fields from a
5!          database of atmospheric to initialize the model.
6!-------------------------------------------------------------------------------
7! Comments:
8!
9!    *  This module is designed to work for Earth (and with ioipsl)
10!
11!    *  etat0phys_netcdf routine can access to NetCDF data through subroutines:
12!         "start_init_phys" for variables contained in file "ECPHY.nc":
13!            'ST'     : Surface temperature
14!            'CDSW'   : Soil moisture
15!         "start_init_orog" for variables contained in file "Relief.nc":
16!            'RELIEF' : High resolution orography
17!
18!    * The land mask and corresponding weights can be:
19!      1) computed using the ocean mask from the ocean model (to ensure ocean
20!         fractions are the same for atmosphere and ocean) for coupled runs.
21!         File name: "o2a.nc"  ;  variable name: "OceMask"
22!      2) computed from topography file "Relief.nc" for forced runs.
23!
24!    * Allowed values for read_climoz flag are 0, 1 and 2:
25!      0: do not read an ozone climatology
26!      1: read a single ozone climatology that will be used day and night
27!      2: read two ozone climatologies, the average day and night climatology
28!         and the daylight climatology
29!-------------------------------------------------------------------------------
30!    * There is a big mess with the longitude size. Should it be iml or iml+1 ?
31!  I have chosen to use the iml+1 as an argument to this routine and we declare
32!  internaly smaller fields when needed. This needs to be cleared once and for
33!  all in LMDZ. A convention is required.
34!-------------------------------------------------------------------------------
35
36  USE ioipsl,             ONLY: flininfo, flinopen, flinget, flinclo
37  USE assert_eq_m,        ONLY: assert_eq
38  USE dimphy,             ONLY: klon
39  USE conf_dat_m,         ONLY: conf_dat2d
40  USE phys_state_var_mod, ONLY: zmea, zstd, zsig, zgam, zthe, zpic, zval, z0m, &
41          solsw, radsol, t_ancien, wake_deltat, wake_s,  rain_fall, qsol, z0h, &
42          sollw, rugoro, q_ancien, wake_deltaq, wake_pe, snow_fall, ratqs,w01, &
43    sig1, ftsol, clwcon, fm_therm, wake_Cstar,  pctsrf,  entr_therm,radpas, f0,&
44    zmax0,fevap, rnebcon,falb_dir, wake_fip,    agesno,  detr_therm, pbl_tke,  &
45    phys_state_var_init
46
47  PRIVATE
48  PUBLIC :: etat0phys_netcdf
49
50  include "iniprint.h"
51  include "dimensions.h"
52  include "paramet.h"
53  include "comgeom2.h"
54  include "comconst.h"
55  include "dimsoil.h"
56  include "temps.h"
57  include "clesphys.h"
58  REAL, SAVE :: deg2rad
59  REAL, SAVE, ALLOCATABLE :: tsol(:)
60  INTEGER,            SAVE      :: iml_phys, jml_phys, llm_phys, ttm_phys, fid_phys
61  REAL, ALLOCATABLE,  SAVE      :: lon_phys(:,:), lat_phys(:,:), levphys_ini(:)
62  CHARACTER(LEN=256), PARAMETER :: orofname="Relief.nc", orogvar="RELIEF"
63  CHARACTER(LEN=256), PARAMETER :: phyfname="ECPHY.nc",  psrfvar="SP"
64  CHARACTER(LEN=256), PARAMETER :: qsolvar="CDSW",       tsrfvar="ST"
65
66
67CONTAINS
68
69
70!-------------------------------------------------------------------------------
71!
72SUBROUTINE etat0phys_netcdf(masque, phis)
73!
74!-------------------------------------------------------------------------------
75! Purpose: Creates initial states
76!-------------------------------------------------------------------------------
77! Notes:  1) This routine is designed to work for Earth
78!         2) If masque(:,:)/=-99999., masque and phis are already known.
79!         Otherwise: compute it.
80!-------------------------------------------------------------------------------
81  USE control_mod
82  USE fonte_neige_mod
83  USE pbl_surface_mod
84  USE regr_lat_time_climoz_m, ONLY: regr_lat_time_climoz
85  USE indice_sol_mod
86  USE conf_phys_m, ONLY: conf_phys
87  USE init_ssrf_m, ONLY: start_init_subsurf
88  !use ioipsl_getincom
89  IMPLICIT NONE
90!-------------------------------------------------------------------------------
91! Arguments:
92  REAL,    INTENT(INOUT) :: masque(:,:) !--- Land mask           dim(iip1,jjp1)
93  REAL,    INTENT(INOUT) :: phis  (:,:) !--- Ground geopotential dim(iip1,jjp1)
94!-------------------------------------------------------------------------------
95! Local variables:
96  CHARACTER(LEN=256) :: modname="etat0phys_netcdf", fmt
97  INTEGER            :: i, j, l, ji, iml, jml
98  LOGICAL            :: read_mask
99  REAL               :: phystep, dummy
100  REAL, DIMENSION(SIZE(masque,1),SIZE(masque,2)) :: masque_tmp,phiso
101  REAL, DIMENSION(klon)               :: sn, rugmer, run_off_lic_0, fder
102  REAL, DIMENSION(klon,nbsrf)         :: qsolsrf, snsrf
103  REAL, DIMENSION(klon,nsoilmx,nbsrf) :: tsoil
104
105!--- Arguments for conf_phys
106  LOGICAL :: ok_journe, ok_mensuel, ok_instan, ok_hf, ok_LES, callstats
107  REAL    :: solarlong0, seuil_inversion, fact_cldcon, facttemps
108  LOGICAL :: ok_newmicro
109  INTEGER :: iflag_radia, iflag_cldcon, iflag_ratqs
110  REAL    :: ratqsbas, ratqshaut, tau_ratqs
111  LOGICAL :: ok_ade, ok_aie, ok_cdnc, aerosol_couple
112  INTEGER :: flag_aerosol
113  INTEGER :: flag_aerosol_strat
114  LOGICAL :: new_aod
115  REAL    :: bl95_b0, bl95_b1
116  INTEGER :: read_climoz                        !--- Read ozone climatology
117  REAL    :: alp_offset
118  LOGICAL :: filtre_oro=.false.
119
120  deg2rad= pi/180.0
121  iml=assert_eq(SIZE(masque,1),SIZE(phis,1),TRIM(modname)//" iml")
122  jml=assert_eq(SIZE(masque,2),SIZE(phis,2),TRIM(modname)//" jml")
123
124! Physics configuration
125!*******************************************************************************
126  CALL conf_phys(  ok_journe, ok_mensuel, ok_instan, ok_hf, ok_LES,     &
127                   callstats,                                           &
128                   solarlong0,seuil_inversion,                          &
129                   fact_cldcon, facttemps,ok_newmicro,iflag_radia,      &
130                   iflag_cldcon,                                        &
131                   iflag_ratqs,ratqsbas,ratqshaut,tau_ratqs,            &
132                   ok_ade, ok_aie, ok_cdnc, aerosol_couple,             &
133                   flag_aerosol, flag_aerosol_strat, new_aod,           &
134                   bl95_b0, bl95_b1,                                    &
135                   read_climoz,                                         &
136                   alp_offset)
137  CALL phys_state_var_init(read_climoz)
138
139!--- Initial atmospheric CO2 conc. from .def file
140  co2_ppm0 = co2_ppm
141
142! Compute ground geopotential, sub-cells quantities and possibly the mask.
143!*******************************************************************************
144  read_mask=ANY(masque/=-99999.); masque_tmp=masque
145  CALL start_init_orog(rlonv, rlatu, phis, masque_tmp)
146
147  CALL getin('filtre_oro',filtre_oro)
148  IF (filtre_oro) CALL filtreoro(size(phis,1),size(phis,2),phis,masque_tmp,rlatu)
149
150  WRITE(fmt,"(i4,'i1)')")iml ; fmt='('//ADJUSTL(fmt)
151  IF(.NOT.read_mask) THEN                       !--- Keep mask form orography
152    masque=masque_tmp
153    IF(prt_level>=1) THEN
154      WRITE(lunout,*)'BUILT MASK :'
155      WRITE(lunout,fmt) NINT(masque)
156    END IF
157    WHERE(   masque(:,:)<EPSFRA) masque(:,:)=0.
158    WHERE(1.-masque(:,:)<EPSFRA) masque(:,:)=1.
159  END IF
160  CALL gr_dyn_fi(1,iml,jml,klon,masque,zmasq) !--- Land mask to physical grid
161
162! Compute tsol and qsol on physical grid, knowing phis on 2D grid.
163!*******************************************************************************
164  CALL start_init_phys(rlonu, rlatv, phis)
165
166! Some initializations.
167!*******************************************************************************
168  sn    (:) = 0.0                               !--- Snow
169  radsol(:) = 0.0                               !--- Net radiation at ground
170  rugmer(:) = 0.001                             !--- Ocean rugosity
171  IF(read_climoz>=1) &                          !--- Ozone climatology
172    CALL regr_lat_time_climoz(read_climoz)
173
174! Sub-surfaces initialization.
175!*******************************************************************************
176  CALL start_init_subsurf(read_mask)
177
178! Write physical initial state
179!*******************************************************************************
180  WRITE(lunout,*)'phystep ',dtvr,iphysiq,nbapp_rad
181  phystep = dtvr * FLOAT(iphysiq)
182  radpas  = NINT (86400./phystep/ FLOAT(nbapp_rad) )
183  WRITE(lunout,*)'phystep =', phystep, radpas
184
185! Init: ftsol, snsrf, qsolsrf, tsoil, rain_fall, snow_fall, solsw, sollw, z0
186!*******************************************************************************
187  DO i=1,nbsrf; ftsol(:,i) = tsol; END DO
188  DO i=1,nbsrf; snsrf(:,i) = sn;   END DO
189  falb_dir(:, :, is_ter) = 0.08
190  falb_dir(:, :, is_lic) = 0.6
191  falb_dir(:, :, is_oce) = 0.5
192  falb_dir(:, :, is_sic) = 0.6
193  fevap(:,:) = 0.
194  DO i=1,nbsrf; qsolsrf(:,i)=150.; END DO
195  DO i=1,nbsrf; DO j=1,nsoilmx; tsoil(:,j,i) = tsol; END DO; END DO
196  rain_fall  = 0.
197  snow_fall  = 0.
198  solsw      = 165.
199  sollw      = -53.
200  t_ancien   = 273.15
201  q_ancien   = 0.
202  agesno     = 0.
203
204  z0m(:,is_oce) = rugmer(:)
205  z0m(:,is_ter) = MAX(1.0e-05,zstd(:)*zsig(:)/2.0)
206  z0m(:,is_lic) = MAX(1.0e-05,zstd(:)*zsig(:)/2.0)
207  z0m(:,is_sic) = 0.001
208  z0h(:,:)=z0m(:,:)
209
210  fder    = 0.0
211  clwcon  = 0.0
212  rnebcon = 0.0
213  ratqs   = 0.0
214  run_off_lic_0 = 0.0
215  rugoro  = 0.0
216
217! Before phyredem calling, surface modules and values to be saved in startphy.nc
218! are initialized
219!*******************************************************************************
220  dummy            = 1.0
221  pbl_tke(:,:,:)   = 1.e-8
222  zmax0(:)         = 40.
223  f0(:)            = 1.e-5
224  sig1(:,:)        = 0.
225  w01(:,:)         = 0.
226  wake_deltat(:,:) = 0.
227  wake_deltaq(:,:) = 0.
228  wake_s(:)        = 0.
229  wake_cstar(:)    = 0.
230  wake_fip(:)      = 0.
231  wake_pe          = 0.
232  fm_therm         = 0.
233  entr_therm       = 0.
234  detr_therm       = 0.
235
236  CALL fonte_neige_init(run_off_lic_0)
237  CALL pbl_surface_init( fder, snsrf, qsolsrf, tsoil )
238  CALL phyredem( "startphy.nc" )
239
240!  WRITE(lunout,*)'CCCCCCCCCCCCCCCCCC REACTIVER SORTIE VISU DANS ETAT0'
241!  WRITE(lunout,*)'entree histclo'
242  CALL histclo()
243
244END SUBROUTINE etat0phys_netcdf
245!
246!-------------------------------------------------------------------------------
247
248
249!-------------------------------------------------------------------------------
250!
251SUBROUTINE start_init_orog(lon_in,lat_in,phis,masque)
252!
253!===============================================================================
254! Comment:
255!   This routine launch grid_noro, which computes parameters for SSO scheme as
256!   described in LOTT & MILLER (1997) and LOTT(1999).
257!===============================================================================
258  USE grid_noro_m, ONLY: grid_noro
259  IMPLICIT NONE
260!-------------------------------------------------------------------------------
261! Arguments:
262  REAL,    INTENT(IN)    :: lon_in(:), lat_in(:)   ! dim (iml) (jml)
263  REAL,    INTENT(INOUT) :: phis(:,:), masque(:,:) ! dim (iml,jml)
264!-------------------------------------------------------------------------------
265! Local variables:
266  CHARACTER(LEN=256) :: modname
267  INTEGER            :: fid, llm_tmp,ttm_tmp, iml,jml, iml_rel,jml_rel, itau(1)
268  REAL               :: lev(1), date, dt
269  REAL, ALLOCATABLE  :: lon_rad(:), lon_ini(:), lon_rel(:,:), relief_hi(:,:)
270  REAL, ALLOCATABLE  :: lat_rad(:), lat_ini(:), lat_rel(:,:), tmp_var  (:,:)
271  REAL, ALLOCATABLE  :: zmea0(:,:), zstd0(:,:), zsig0(:,:)
272  REAL, ALLOCATABLE  :: zgam0(:,:), zthe0(:,:), zpic0(:,:), zval0(:,:)
273!-------------------------------------------------------------------------------
274  modname="start_init_orog"
275  iml=assert_eq(SIZE(lon_in),SIZE(phis,1),SIZE(masque,1),TRIM(modname)//" iml")
276  jml=assert_eq(SIZE(lat_in),SIZE(phis,2),SIZE(masque,2),TRIM(modname)//" jml")
277
278!--- HIGH RESOLUTION OROGRAPHY
279  CALL flininfo(orofname, iml_rel, jml_rel, llm_tmp, ttm_tmp, fid)
280
281  ALLOCATE(lat_rel(iml_rel,jml_rel),lon_rel(iml_rel,jml_rel))
282  CALL flinopen(orofname, .FALSE., iml_rel, jml_rel, llm_tmp, lon_rel, lat_rel,&
283                lev, ttm_tmp, itau, date, dt, fid)
284  ALLOCATE(relief_hi(iml_rel,jml_rel))
285  CALL flinget(fid, orogvar, iml_rel, jml_rel, llm_tmp, ttm_tmp, 1,1, relief_hi)
286  CALL flinclo(fid)
287
288!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
289  ALLOCATE(lon_ini(iml_rel),lat_ini(jml_rel))
290  lon_ini(:)=lon_rel(:,1); IF(MAXVAL(lon_rel)>pi) lon_ini=lon_ini*deg2rad
291  lat_ini(:)=lat_rel(1,:); IF(MAXVAL(lat_rel)>pi) lat_ini=lat_ini*deg2rad
292
293!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
294  ALLOCATE(lon_rad(iml_rel),lat_rad(jml_rel))
295  CALL conf_dat2d(orogvar, lon_ini, lat_ini, lon_rad, lat_rad, relief_hi,.FALSE.)
296  DEALLOCATE(lon_ini,lat_ini)
297
298!--- COMPUTING THE REQUIRED FIELDS USING ROUTINE grid_noro
299  WRITE(lunout,*)
300  WRITE(lunout,*)'*** Compute parameters needed for gravity wave drag code ***'
301
302!--- ALLOCATIONS OF SUB-CELL SCALES QUANTITIES
303  ALLOCATE(zmea0(iml,jml),zstd0(iml,jml)) !--- Mean orography and std deviation
304  ALLOCATE(zsig0(iml,jml),zgam0(iml,jml)) !--- Slope and nisotropy
305  ALLOCATE(zthe0(iml,jml))                !--- Highest slope orientation
306  ALLOCATE(zpic0(iml,jml),zval0(iml,jml)) !--- Peaks and valley heights
307
308!--- CALL OROGRAPHY MODULE TO COMPUTE FIELDS
309  CALL grid_noro(lon_rad,lat_rad,relief_hi,lon_in,lat_in,phis,zmea0,zstd0,     &
310                                      zsig0,zgam0,zthe0,zpic0,zval0,masque)
311  phis = phis * 9.81
312  phis(iml,:) = phis(1,:)
313  DEALLOCATE(relief_hi,lon_rad,lat_rad)
314
315!--- PUT QUANTITIES TO PHYSICAL GRID
316  CALL gr_dyn_fi(1,iml,jml,klon,zmea0,zmea); DEALLOCATE(zmea0)
317  CALL gr_dyn_fi(1,iml,jml,klon,zstd0,zstd); DEALLOCATE(zstd0)
318  CALL gr_dyn_fi(1,iml,jml,klon,zsig0,zsig); DEALLOCATE(zsig0)
319  CALL gr_dyn_fi(1,iml,jml,klon,zgam0,zgam); DEALLOCATE(zgam0)
320  CALL gr_dyn_fi(1,iml,jml,klon,zthe0,zthe); DEALLOCATE(zthe0)
321  CALL gr_dyn_fi(1,iml,jml,klon,zpic0,zpic); DEALLOCATE(zpic0)
322  CALL gr_dyn_fi(1,iml,jml,klon,zval0,zval); DEALLOCATE(zval0)
323
324
325END SUBROUTINE start_init_orog
326!
327!-------------------------------------------------------------------------------
328
329
330!-------------------------------------------------------------------------------
331!
332SUBROUTINE start_init_phys(lon_in,lat_in,phis)
333!
334!===============================================================================
335! Purpose:   Compute tsol and qsol, knowing phis.
336!===============================================================================
337  IMPLICIT NONE
338!-------------------------------------------------------------------------------
339! Arguments:
340  REAL,    INTENT(IN) :: lon_in(:),  lat_in(:)       ! dim (iml) (jml2)
341  REAL,    INTENT(IN) :: phis(:,:)                   ! dim (iml,jml)
342!-------------------------------------------------------------------------------
343! Local variables:
344  CHARACTER(LEN=256) :: modname
345  REAL               :: date, dt
346  INTEGER            :: iml, jml, jml2, itau(1)
347  REAL, ALLOCATABLE  :: lon_rad(:), lon_ini(:), var_ana(:,:)
348  REAL, ALLOCATABLE  :: lat_rad(:), lat_ini(:)
349  REAL, ALLOCATABLE  :: ts(:,:), qs(:,:)
350!-------------------------------------------------------------------------------
351  modname="start_init_phys"
352  iml=assert_eq(SIZE(lon_in),SIZE(phis,1),TRIM(modname)//" iml")
353  jml=SIZE(phis,2); jml2=SIZE(lat_in)
354
355  WRITE(lunout,*)'Opening the surface analysis'
356  CALL flininfo(phyfname, iml_phys, jml_phys, llm_phys, ttm_phys, fid_phys)
357  WRITE(lunout,*) 'Values read: ',  iml_phys, jml_phys, llm_phys, ttm_phys
358
359  ALLOCATE(lat_phys(iml_phys,jml_phys),lon_phys(iml_phys,jml_phys))
360  ALLOCATE(levphys_ini(llm_phys))
361  CALL flinopen(phyfname, .FALSE., iml_phys, jml_phys, llm_phys,              &
362                lon_phys,lat_phys,levphys_ini,ttm_phys,itau,date,dt,fid_phys)
363
364!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
365  ALLOCATE(lon_ini(iml_phys),lat_ini(jml_phys))
366  lon_ini(:)=lon_phys(:,1); IF(MAXVAL(lon_phys)>pi) lon_ini=lon_ini*deg2rad
367  lat_ini(:)=lat_phys(1,:); IF(MAXVAL(lat_phys)>pi) lat_ini=lat_ini*deg2rad
368
369  ALLOCATE(var_ana(iml_phys,jml_phys),lon_rad(iml_phys),lat_rad(jml_phys))
370  CALL get_var_phys(tsrfvar,ts)                   !--- SURFACE TEMPERATURE
371  CALL get_var_phys(qsolvar,qs)                   !--- SOIL MOISTURE
372  CALL flinclo(fid_phys)
373  DEALLOCATE(var_ana,lon_rad,lat_rad,lon_ini,lat_ini)
374
375!--- TSOL AND QSOL ON PHYSICAL GRID
376  ALLOCATE(tsol(klon))
377  CALL gr_dyn_fi(1,iml,jml,klon,ts,tsol)
378  CALL gr_dyn_fi(1,iml,jml,klon,qs,qsol)
379  DEALLOCATE(ts,qs)
380
381CONTAINS
382
383!-------------------------------------------------------------------------------
384!
385SUBROUTINE get_var_phys(title,field)
386!
387!-------------------------------------------------------------------------------
388  IMPLICIT NONE
389!-------------------------------------------------------------------------------
390! Arguments:
391  CHARACTER(LEN=*),  INTENT(IN)    :: title
392  REAL, ALLOCATABLE, INTENT(INOUT) :: field(:,:)
393!-------------------------------------------------------------------------------
394! Local variables:
395  INTEGER :: tllm
396!-------------------------------------------------------------------------------
397  SELECT CASE(title)
398    CASE(psrfvar);         tllm=0
399    CASE(tsrfvar,qsolvar); tllm=llm_phys
400  END SELECT
401  IF(ALLOCATED(field)) RETURN
402  ALLOCATE(field(iml,jml)); field(:,:)=0.
403  CALL flinget(fid_phys,title,iml_phys,jml_phys,tllm,ttm_phys,1,1,var_ana)
404  CALL conf_dat2d(title, lon_ini, lat_ini, lon_rad, lat_rad, var_ana, .TRUE.)
405  CALL interp_startvar(title, .TRUE., lon_rad, lat_rad, var_ana,               &
406                                      lon_in,  lat_in,  field)
407
408END SUBROUTINE get_var_phys
409!
410!-------------------------------------------------------------------------------
411!
412END SUBROUTINE start_init_phys
413!
414!-------------------------------------------------------------------------------
415
416
417!-------------------------------------------------------------------------------
418!
419SUBROUTINE interp_startvar(nam,ibeg,lon,lat,vari,lon2,lat2,varo)
420!
421!-------------------------------------------------------------------------------
422  USE inter_barxy_m, ONLY: inter_barxy
423  IMPLICIT NONE
424!-------------------------------------------------------------------------------
425! Arguments:
426  CHARACTER(LEN=*), INTENT(IN)  :: nam
427  LOGICAL,          INTENT(IN)  :: ibeg
428  REAL,             INTENT(IN)  :: lon(:), lat(:)   ! dim (ii) (jj)
429  REAL,             INTENT(IN)  :: vari(:,:)        ! dim (ii,jj)
430  REAL,             INTENT(IN)  :: lon2(:), lat2(:) ! dim (i1) (j2)
431  REAL,             INTENT(OUT) :: varo(:,:)        ! dim (i1) (j1)
432!-------------------------------------------------------------------------------
433! Local variables:
434  CHARACTER(LEN=256) :: modname
435  INTEGER            :: ii, jj, i1, j1, j2
436  REAL, ALLOCATABLE  :: vtmp(:,:)
437!-------------------------------------------------------------------------------
438  modname="interp_startvar"
439  ii=assert_eq(SIZE(lon), SIZE(vari,1),TRIM(modname)//" ii")
440  jj=assert_eq(SIZE(lat), SIZE(vari,2),TRIM(modname)//" jj")
441  i1=assert_eq(SIZE(lon2),SIZE(varo,1),TRIM(modname)//" i1")
442  j1=SIZE(varo,2); j2=SIZE(lat2)
443  ALLOCATE(vtmp(i1-1,j1))
444  IF(ibeg.AND.prt_level>1) THEN
445    WRITE(lunout,*)"--------------------------------------------------------"
446    WRITE(lunout,*)"$$$ Interpolation barycentrique pour "//TRIM(nam)//" $$$"
447    WRITE(lunout,*)"--------------------------------------------------------"
448  END IF
449  CALL inter_barxy(lon, lat(:jj-1), vari, lon2(:i1-1), lat2, vtmp)
450  CALL gr_int_dyn(vtmp, varo, i1-1, j1)
451
452END SUBROUTINE interp_startvar
453!
454!-------------------------------------------------------------------------------
455!
456!*******************************************************************************
457
458SUBROUTINE filtreoro(imp1,jmp1,phis,masque,rlatu)
459
460IMPLICIT NONE
461
462  INTEGER imp1,jmp1
463  REAL, DIMENSION(imp1,jmp1) :: phis,masque
464  REAL, DIMENSION(jmp1) :: rlatu
465  REAL, DIMENSION(imp1) :: wwf
466  REAL, DIMENSION(imp1,jmp1) :: phiso
467  INTEGER :: ifiltre,ifi,ii,i,j
468  REAL :: coslat0,ssz
469
470  coslat0=0.5
471  phiso=phis
472  do j=2,jmp1-1
473     print*,'avant if ',cos(rlatu(j)),coslat0
474     if (cos(rlatu(j))<coslat0) then
475         ! nb de pts affectes par le filtrage de part et d'autre du pt
476         ifiltre=(coslat0/cos(rlatu(j))-1.)/2.
477         wwf=0.
478         do i=1,ifiltre
479            wwf(i)=1.
480         enddo
481         wwf(ifiltre+1)=(coslat0/cos(rlatu(j))-1.)/2.-ifiltre
482         do i=1,imp1-1
483            if (masque(i,j)>0.9) then
484               ssz=phis(i,j)
485               do ifi=1,ifiltre+1
486                  ii=i+ifi
487                  if (ii>imp1-1) ii=ii-imp1+1
488                  ssz=ssz+wwf(ifi)*phis(ii,j)
489                  ii=i-ifi
490                  if (ii<1) ii=ii+imp1-1
491                  ssz=ssz+wwf(ifi)*phis(ii,j)
492               enddo
493               phis(i,j)=ssz*cos(rlatu(j))/coslat0
494            endif
495         enddo
496         print*,'j=',j,coslat0/cos(rlatu(j)), (1.+2.*sum(wwf))*cos(rlatu(j))/coslat0
497     endif
498  enddo
499  call dump2d(imp1,jmp1,phis,'phis ')
500  call dump2d(imp1,jmp1,masque,'masque ')
501  call dump2d(imp1,jmp1,phis-phiso,'dphis ')
502
503END SUBROUTINE filtreoro
504
505
506END MODULE etat0phys
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