source: LMDZ6/branches/IPSLCM6.0.14/libf/dynphy_lonlat/phylmd/limit_netcdf.F90 @ 3406

Last change on this file since 3406 was 2947, checked in by dcugnet, 7 years ago
  • The "units" attribute of SST variable is now checked to allow celcius degrees to kelvins conversion if required.
  • Few cosmetic changes for output text file to make it more readable (and help to detect if ce0l has really done what was expected).
  • 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: 34.2 KB
Line 
1MODULE limit
2!
3!*******************************************************************************
4! Author : L. Fairhead, 27/01/94
5!-------------------------------------------------------------------------------
6! Purpose: Boundary conditions files building for new model using climatologies.
7!          Both grids have to be regular.
8!-------------------------------------------------------------------------------
9! Note: This routine is designed to work for Earth
10!-------------------------------------------------------------------------------
11! Modification history:
12!  * 23/03/1994: Z. X. Li
13!  *    09/1999: L. Fairhead (netcdf reading in LMDZ.3.3)
14!  *    07/2001: P. Le Van
15!  *    11/2009: L. Guez     (ozone day & night climatos, see etat0_netcdf.F90)
16!  *    12/2009: D. Cugnet   (f77->f90, calendars, files from coupled runs)
17!-------------------------------------------------------------------------------
18
19  USE ioipsl,             ONLY: flininfo, flinopen, flinget, flinclo
20  USE assert_eq_m,        ONLY: assert_eq
21  USE cal_tools_m,        ONLY: year_len, mid_month
22  USE conf_dat_m,         ONLY: conf_dat2d, conf_dat3d
23  USE dimphy,             ONLY: klon, zmasq
24  USE geometry_mod,       ONLY: longitude_deg, latitude_deg
25  USE phys_state_var_mod, ONLY: pctsrf
26  USE control_mod,        ONLY: anneeref
27  USE init_ssrf_m,        ONLY: start_init_subsurf
28
29  CHARACTER(LEN=20), PARAMETER :: &
30  fsst(5)=['amipbc_sst_1x1.nc   ','amip_sst_1x1.nc     ','cpl_atm_sst.nc      '&
31          ,'histmth_sst.nc      ','sstk.nc             ']
32  CHARACTER(LEN=20), PARAMETER :: &
33  fsic(5)=['amipbc_sic_1x1.nc   ','amip_sic_1x1.nc     ','cpl_atm_sic.nc      '&
34          ,'histmth_sic.nc      ','ci.nc               ']
35  CHARACTER(LEN=10), PARAMETER :: &
36  vsst(5)=['tosbcs    ','tos       ','SISUTESW  ','tsol_oce  ','sstk      '],  &
37  vsic(5)=['sicbcs    ','sic       ','SIICECOV  ','pourc_sic ','ci        ']
38  CHARACTER(LEN=10), PARAMETER :: &
39  frugo='Rugos.nc  ', falbe='Albedo.nc ', frelf='Relief.nc ',    &
40   vrug='RUGOS     ',  valb='ALBEDO    ',  vrel='RELIEF    '
41
42CONTAINS
43
44!-------------------------------------------------------------------------------
45!
46SUBROUTINE limit_netcdf(masque, phis, extrap)
47!
48!-------------------------------------------------------------------------------
49! Author : L. Fairhead, 27/01/94
50!-------------------------------------------------------------------------------
51! Purpose: Boundary conditions files building for new model using climatologies.
52!          Both grids have to be regular.
53!-------------------------------------------------------------------------------
54! Note: This routine is designed to work for Earth
55!-------------------------------------------------------------------------------
56! Modification history:
57!  * 23/03/1994: Z. X. Li
58!  *    09/1999: L. Fairhead (netcdf reading in LMDZ.3.3)
59!  *    07/2001: P. Le Van
60!  *    11/2009: L. Guez     (ozone day & night climatos, see etat0_netcdf.F90)
61!  *    12/2009: D. Cugnet   (f77->f90, calendars, files from coupled runs)
62!  *    04/2016: D. Cugnet   (12/14 recs SST/SIC files: cyclic/interannual runs)
63!  *    05/2017: D. Cugnet   (linear time interpolation for BCS files)
64!-------------------------------------------------------------------------------
65#ifndef CPP_1D
66  USE indice_sol_mod
67  USE netcdf,             ONLY: NF90_OPEN,    NF90_CREATE,  NF90_CLOSE,        &
68                  NF90_DEF_DIM, NF90_DEF_VAR, NF90_PUT_VAR, NF90_PUT_ATT,      &
69                  NF90_NOERR,   NF90_NOWRITE, NF90_DOUBLE,  NF90_GLOBAL,       &
70                  NF90_CLOBBER, NF90_ENDDEF,  NF90_UNLIMITED, NF90_FLOAT
71  USE inter_barxy_m,      ONLY: inter_barxy
72  USE netcdf95,           ONLY: nf95_def_var, nf95_put_att, nf95_put_var
73  USE comconst_mod, ONLY: pi
74  USE phys_cal_mod, ONLY: calend
75  IMPLICIT NONE
76!-------------------------------------------------------------------------------
77! Arguments:
78  include "iniprint.h"
79  include "dimensions.h"
80  include "paramet.h"
81  REAL, DIMENSION(iip1,jjp1), INTENT(INOUT) :: masque ! land mask
82  REAL, DIMENSION(iip1,jjp1), INTENT(INOUT) :: phis   ! ground geopotential
83  LOGICAL,                    INTENT(IN)    :: extrap ! SST extrapolation flag
84!-------------------------------------------------------------------------------
85! Local variables:
86  include "comgeom2.h"
87
88!--- INPUT NETCDF FILES NAMES --------------------------------------------------
89  CHARACTER(LEN=20) :: icefile, sstfile, dumstr, fnam
90  CHARACTER(LEN=10) :: varname
91
92!--- OUTPUT VARIABLES FOR NETCDF FILE ------------------------------------------
93  REAL               :: fi_ice(klon), verif(klon)
94  REAL, POINTER      :: phy_rug(:,:)=>NULL(), phy_ice(:,:)=>NULL()
95  REAL, POINTER      :: phy_sst(:,:)=>NULL(), phy_alb(:,:)=>NULL()
96  REAL, ALLOCATABLE  :: phy_bil(:,:), pctsrf_t(:,:,:)
97  INTEGER            :: nbad
98
99!--- VARIABLES FOR OUTPUT FILE WRITING -----------------------------------------
100  INTEGER :: ierr, nid, ndim, ntim, k, dims(2), ix_sic, ix_sst
101  INTEGER :: id_tim,  id_SST,  id_BILS, id_RUG, id_ALB
102  INTEGER :: id_FOCE, id_FSIC, id_FTER, id_FLIC, varid_longitude, varid_latitude
103  INTEGER :: NF90_FORMAT
104  INTEGER :: ndays                   !--- Depending on the output calendar
105  CHARACTER(LEN=256) :: str
106
107!--- INITIALIZATIONS -----------------------------------------------------------
108#ifdef NC_DOUBLE
109  NF90_FORMAT=NF90_DOUBLE
110#else
111  NF90_FORMAT=NF90_FLOAT
112#endif
113  CALL inigeom
114
115!--- MASK, GROUND GEOPOT. & SUBSURFACES COMPUTATION (IN CASE ok_etat0==.FALSE.)
116   IF(ALL(masque==-99999.)) THEN
117    CALL start_init_orog0(rlonv,rlatu,phis,masque)
118    CALL gr_dyn_fi(1,iip1,jjp1,klon,masque,zmasq)          !--- To physical grid
119    ALLOCATE(pctsrf(klon,nbsrf))
120    CALL start_init_subsurf(.FALSE.)
121  !--- TO MATCH EXACTLY WHAT WOULD BE DONE IN etat0phys_netcdf
122    WHERE(   masque(:,:)<EPSFRA) masque(:,:)=0.
123    WHERE(1.-masque(:,:)<EPSFRA) masque(:,:)=1.
124  END IF
125
126!--- Beware: anneeref (from gcm.def) is used to determine output time sampling
127  ndays=year_len(anneeref)
128
129!--- RUGOSITY TREATMENT --------------------------------------------------------
130  CALL msg(0,""); CALL msg(0," *** TRAITEMENT DE LA RUGOSITE ***")
131  CALL get_2Dfield(frugo,vrug,'RUG',ndays,phy_rug,mask=masque(1:iim,:))
132
133!--- OCEAN TREATMENT -----------------------------------------------------------
134  CALL msg(0,""); CALL msg(0," *** TRAITEMENT DE LA GLACE OCEANIQUE ***")
135
136! Input SIC file selection
137! Open file only to test if available
138  DO ix_sic=1,SIZE(fsic)
139     IF ( NF90_OPEN(TRIM(fsic(ix_sic)),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
140        icefile=fsic(ix_sic); varname=vsic(ix_sic); EXIT
141     END IF
142  END DO
143  IF(ix_sic==SIZE(fsic)+1) THEN
144     WRITE(lunout,*) 'ERROR! No sea-ice input file was found.'
145     WRITE(lunout,*) 'One of following files must be available : '
146     DO k=1,SIZE(fsic); WRITE(lunout,*) TRIM(fsic(k)); END DO
147     CALL abort_physic('limit_netcdf','No sea-ice file was found',1)
148  END IF
149  CALL ncerr(NF90_CLOSE(nid),icefile)
150  CALL msg(0,'Fichier choisi pour la glace de mer:'//TRIM(icefile))
151
152  CALL get_2Dfield(icefile,varname, 'SIC',ndays,phy_ice)
153
154  ALLOCATE(pctsrf_t(klon,nbsrf,ndays))
155  DO k=1,ndays
156     fi_ice=phy_ice(:,k)
157     WHERE(fi_ice>=1.0  ) fi_ice=1.0
158     WHERE(fi_ice<EPSFRA) fi_ice=0.0
159     pctsrf_t(:,is_ter,k)=pctsrf(:,is_ter)       ! land soil
160     pctsrf_t(:,is_lic,k)=pctsrf(:,is_lic)       ! land ice
161     SELECT CASE(ix_sic)
162        CASE(3)                                   ! SIC=pICE*(1-LIC-TER) (CPL)
163        pctsrf_t(:,is_sic,k)=fi_ice(:)*(1.-pctsrf(:,is_lic)-pctsrf(:,is_ter))
164        CASE(4)                                   ! SIC=pICE            (HIST)
165        pctsrf_t(:,is_sic,k)=fi_ice(:)
166        CASE DEFAULT                              ! SIC=pICE-LIC   (AMIP,ERAI)
167        pctsrf_t(:,is_sic,k)=fi_ice-pctsrf_t(:,is_lic,k)
168     END SELECT
169     WHERE(pctsrf_t(:,is_sic,k)<=0) pctsrf_t(:,is_sic,k)=0.
170     WHERE(1.0-zmasq<EPSFRA)
171        pctsrf_t(:,is_sic,k)=0.0
172        pctsrf_t(:,is_oce,k)=0.0
173     ELSEWHERE
174        WHERE(pctsrf_t(:,is_sic,k)>=1.0-zmasq)
175           pctsrf_t(:,is_sic,k)=1.0-zmasq
176           pctsrf_t(:,is_oce,k)=0.0
177        ELSEWHERE
178           pctsrf_t(:,is_oce,k)=1.0-zmasq-pctsrf_t(:,is_sic,k)
179           WHERE(pctsrf_t(:,is_oce,k)<EPSFRA)
180              pctsrf_t(:,is_oce,k)=0.0
181              pctsrf_t(:,is_sic,k)=1.0-zmasq
182           END WHERE
183        END WHERE
184     END WHERE
185     nbad=COUNT(pctsrf_t(:,is_oce,k)<0.0)
186     IF(nbad>0) WRITE(lunout,*) 'pb sous maille pour nb points = ',nbad
187     nbad=COUNT(ABS(SUM(pctsrf_t(:,:,k),DIM=2)-1.0)>EPSFRA)
188     IF(nbad>0) WRITE(lunout,*) 'pb sous surface pour nb points = ',nbad
189  END DO
190  DEALLOCATE(phy_ice)
191
192!--- SST TREATMENT -------------------------------------------------------------
193  CALL msg(0,""); CALL msg(0," *** TRAITEMENT DE LA SST ***")
194
195! Input SST file selection
196! Open file only to test if available
197  DO ix_sst=1,SIZE(fsst)
198     IF ( NF90_OPEN(TRIM(fsst(ix_sst)),NF90_NOWRITE,nid)==NF90_NOERR ) THEN
199       sstfile=fsst(ix_sst); varname=vsst(ix_sst); EXIT
200     END IF
201  END DO
202  IF(ix_sst==SIZE(fsst)+1) THEN
203     WRITE(lunout,*) 'ERROR! No sst input file was found.'
204     WRITE(lunout,*) 'One of following files must be available : '
205     DO k=1,SIZE(fsst); WRITE(lunout,*) TRIM(fsst(k)); END DO
206     CALL abort_physic('limit_netcdf','No sst file was found',1)
207  END IF
208  CALL ncerr(NF90_CLOSE(nid),sstfile)
209  CALL msg(0,'Fichier choisi pour la temperature de mer: '//TRIM(sstfile))
210
211  CALL get_2Dfield(sstfile,varname,'SST',ndays,phy_sst,flag=extrap)
212
213!--- ALBEDO TREATMENT ----------------------------------------------------------
214  CALL msg(0,""); CALL msg(0," *** TRAITEMENT DE L'ALBEDO ***")
215  CALL get_2Dfield(falbe,valb,'ALB',ndays,phy_alb)
216
217!--- REFERENCE GROUND HEAT FLUX TREATMENT --------------------------------------
218  ALLOCATE(phy_bil(klon,ndays)); phy_bil=0.0
219
220!--- OUTPUT FILE WRITING -------------------------------------------------------
221  CALL msg(0,""); CALL msg(0,' *** Ecriture du fichier limit : debut ***')
222  fnam="limit.nc"
223
224  !--- File creation
225  CALL ncerr(NF90_CREATE(fnam,NF90_CLOBBER,nid),fnam)
226  CALL ncerr(NF90_PUT_ATT(nid,NF90_GLOBAL,"title","Fichier conditions aux limites"),fnam)
227  str='File produced using ce0l executable.'
228  str=TRIM(str)//NEW_LINE(' ')//'Sea Ice Concentration built from'
229  SELECT CASE(ix_sic)
230    CASE(1); str=TRIM(str)//' Amip mid-month boundary condition (BCS).'
231    CASE(2); str=TRIM(str)//' Amip monthly mean observations.'
232    CASE(3); str=TRIM(str)//' IPSL coupled model outputs.'
233    CASE(4); str=TRIM(str)//' LMDZ model outputs.'
234    CASE(5); str=TRIM(str)//' ci.nc file.'
235  END SELECT
236  str=TRIM(str)//NEW_LINE(' ')//'Sea Surface Temperature built from'
237  SELECT CASE(ix_sst)
238    CASE(1); str=TRIM(str)//' Amip mid-month boundary condition (BCS).'
239    CASE(2); str=TRIM(str)//' Amip monthly mean observations.'
240    CASE(3); str=TRIM(str)//' IPSL coupled model outputs.'
241    CASE(4); str=TRIM(str)//' LMDZ model outputs.'
242    CASE(5); str=TRIM(str)//' sstk.nc file.'
243  END SELECT
244  CALL ncerr(NF90_PUT_ATT(nid,NF90_GLOBAL,"history",TRIM(str)),fnam)
245
246  !--- Dimensions creation
247  CALL ncerr(NF90_DEF_DIM(nid,"points_physiques",klon,ndim),fnam)
248  CALL ncerr(NF90_DEF_DIM(nid,"time",NF90_UNLIMITED,ntim),fnam)
249
250  dims=[ndim,ntim]
251
252  !--- Variables creation
253  CALL ncerr(NF90_DEF_VAR(nid,"TEMPS",NF90_FORMAT,[ntim],id_tim),fnam)
254  CALL ncerr(NF90_DEF_VAR(nid,"FOCE", NF90_FORMAT,dims,id_FOCE),fnam)
255  CALL ncerr(NF90_DEF_VAR(nid,"FSIC", NF90_FORMAT,dims,id_FSIC),fnam)
256  CALL ncerr(NF90_DEF_VAR(nid,"FTER", NF90_FORMAT,dims,id_FTER),fnam)
257  CALL ncerr(NF90_DEF_VAR(nid,"FLIC", NF90_FORMAT,dims,id_FLIC),fnam)
258  CALL ncerr(NF90_DEF_VAR(nid,"SST",  NF90_FORMAT,dims,id_SST),fnam)
259  CALL ncerr(NF90_DEF_VAR(nid,"BILS", NF90_FORMAT,dims,id_BILS),fnam)
260  CALL ncerr(NF90_DEF_VAR(nid,"ALB",  NF90_FORMAT,dims,id_ALB),fnam)
261  CALL ncerr(NF90_DEF_VAR(nid,"RUG",  NF90_FORMAT,dims,id_RUG),fnam)
262  call nf95_def_var(nid, "longitude", NF90_FLOAT, ndim, varid_longitude)
263  call nf95_def_var(nid, "latitude",  NF90_FLOAT, ndim, varid_latitude)
264
265  !--- Attributes creation
266  CALL ncerr(NF90_PUT_ATT(nid,id_tim, "title","Jour dans l annee"),fnam)
267  CALL ncerr(NF90_PUT_ATT(nid,id_tim, "calendar",calend),fnam)
268  CALL ncerr(NF90_PUT_ATT(nid,id_FOCE,"title","Fraction ocean"),fnam)
269  CALL ncerr(NF90_PUT_ATT(nid,id_FSIC,"title","Fraction glace de mer"),fnam)
270  CALL ncerr(NF90_PUT_ATT(nid,id_FTER,"title","Fraction terre"),fnam)
271  CALL ncerr(NF90_PUT_ATT(nid,id_FLIC,"title","Fraction land ice"),fnam)
272  CALL ncerr(NF90_PUT_ATT(nid,id_SST ,"title","Temperature superficielle de la mer"),fnam)
273  CALL ncerr(NF90_PUT_ATT(nid,id_BILS,"title","Reference flux de chaleur au sol"),fnam)
274  CALL ncerr(NF90_PUT_ATT(nid,id_ALB, "title","Albedo a la surface"),fnam)
275  CALL ncerr(NF90_PUT_ATT(nid,id_RUG, "title","Rugosite"),fnam)
276
277  call nf95_put_att(nid, varid_longitude, "standard_name", "longitude")
278  call nf95_put_att(nid, varid_longitude, "units", "degrees_east")
279
280  call nf95_put_att(nid, varid_latitude, "standard_name", "latitude")
281  call nf95_put_att(nid, varid_latitude, "units", "degrees_north")
282
283  CALL ncerr(NF90_ENDDEF(nid),fnam)
284
285  !--- Variables saving
286  CALL ncerr(NF90_PUT_VAR(nid,id_tim,[(REAL(k),k=1,ndays)]),fnam)
287  CALL ncerr(NF90_PUT_VAR(nid,id_FOCE,pctsrf_t(:,is_oce,:),[1,1],[klon,ndays]),fnam)
288  CALL ncerr(NF90_PUT_VAR(nid,id_FSIC,pctsrf_t(:,is_sic,:),[1,1],[klon,ndays]),fnam)
289  CALL ncerr(NF90_PUT_VAR(nid,id_FTER,pctsrf_t(:,is_ter,:),[1,1],[klon,ndays]),fnam)
290  CALL ncerr(NF90_PUT_VAR(nid,id_FLIC,pctsrf_t(:,is_lic,:),[1,1],[klon,ndays]),fnam)
291  CALL ncerr(NF90_PUT_VAR(nid,id_SST ,phy_sst(:,:),[1,1],[klon,ndays]),fnam)
292  CALL ncerr(NF90_PUT_VAR(nid,id_BILS,phy_bil(:,:),[1,1],[klon,ndays]),fnam)
293  CALL ncerr(NF90_PUT_VAR(nid,id_ALB ,phy_alb(:,:),[1,1],[klon,ndays]),fnam)
294  CALL ncerr(NF90_PUT_VAR(nid,id_RUG ,phy_rug(:,:),[1,1],[klon,ndays]),fnam)
295  call nf95_put_var(nid, varid_longitude, longitude_deg)
296  call nf95_put_var(nid, varid_latitude, latitude_deg)
297
298  CALL ncerr(NF90_CLOSE(nid),fnam)
299
300  CALL msg(0,""); CALL msg(0,' *** Ecriture du fichier limit : fin ***')
301
302  DEALLOCATE(pctsrf_t,phy_sst,phy_bil,phy_alb,phy_rug)
303
304
305!===============================================================================
306!
307  CONTAINS
308!
309!===============================================================================
310
311
312!-------------------------------------------------------------------------------
313!
314SUBROUTINE get_2Dfield(fnam, varname, mode, ndays, champo, flag, mask)
315!
316!-----------------------------------------------------------------------------
317! Comments:
318!   There are two assumptions concerning the NetCDF files, that are satisfied
319!   with files that are conforming NC convention:
320!     1) The last dimension of the variables used is the time record.
321!     2) Dimensional variables have the same names as corresponding dimensions.
322!-----------------------------------------------------------------------------
323  USE netcdf, ONLY: NF90_OPEN, NF90_INQ_VARID, NF90_INQUIRE_VARIABLE, &
324       NF90_CLOSE, NF90_INQ_DIMID, NF90_INQUIRE_DIMENSION, NF90_GET_VAR, &
325       NF90_GET_ATT
326  USE pchsp_95_m, only: pchsp_95
327  USE pchfe_95_m, only: pchfe_95
328  USE arth_m, only: arth
329  USE indice_sol_mod
330
331  IMPLICIT NONE
332  include "dimensions.h"
333  include "paramet.h"
334  include "comgeom2.h"
335!-----------------------------------------------------------------------------
336! Arguments:
337  CHARACTER(LEN=*),  INTENT(IN)     :: fnam     ! NetCDF file name
338  CHARACTER(LEN=10), INTENT(IN)     :: varname  ! NetCDF variable name
339  CHARACTER(LEN=3),  INTENT(IN)     :: mode     ! RUG, SIC, SST or ALB
340  INTEGER,           INTENT(IN)     :: ndays    ! current year number of days
341  REAL,    POINTER,  DIMENSION(:, :) :: champo  ! output field = f(t)
342  LOGICAL, OPTIONAL, INTENT(IN)     :: flag     ! extrapol. (SST) old ice (SIC)
343  REAL,    OPTIONAL, DIMENSION(iim, jjp1), INTENT(IN) :: mask
344!------------------------------------------------------------------------------
345! Local variables:
346!--- NetCDF
347  INTEGER           :: ncid, varid        ! NetCDF identifiers
348  CHARACTER(LEN=30) :: dnam               ! dimension name
349!--- dimensions
350  INTEGER           :: dids(4)            ! NetCDF dimensions identifiers
351  REAL, ALLOCATABLE :: dlon_ini(:)        ! initial longitudes vector
352  REAL, ALLOCATABLE :: dlat_ini(:)        ! initial latitudes  vector
353  REAL, POINTER     :: dlon(:), dlat(:)   ! reordered lon/lat  vectors
354!--- fields
355  INTEGER :: imdep, jmdep, lmdep          ! dimensions of 'champ'
356  REAL, ALLOCATABLE :: champ(:,:)         ! wanted field on initial grid
357  REAL, ALLOCATABLE :: yder(:), timeyear(:)
358  REAL              :: champint(iim,jjp1) ! interpolated field
359  REAL, ALLOCATABLE :: champtime(:,:,:)
360  REAL, ALLOCATABLE :: champan(:,:,:)
361!--- input files
362  CHARACTER(LEN=20) :: fnam_m, fnam_p     ! previous/next files names
363  CHARACTER(LEN=20) :: cal_in             ! calendar
364  CHARACTER(LEN=20) :: unit_sic           ! attribute "units" in sea-ice file
365  CHARACTER(LEN=20) :: unit_sst           ! attribute "units" in sst     file
366  INTEGER           :: ndays_in           ! number of days
367!--- misc
368  INTEGER           :: i, j, k, l, ll     ! loop counters
369  REAL, ALLOCATABLE :: work(:,:)          ! used for extrapolation
370  CHARACTER(LEN=128):: title, mess        ! for messages
371  LOGICAL           :: is_bcs             ! flag for BCS data
372  LOGICAL           :: extrp              ! flag for extrapolation
373  REAL              :: chmin, chmax, timeday, al
374  INTEGER ierr, idx
375  integer n_extrap ! number of extrapolated points
376  logical skip
377
378!------------------------------------------------------------------------------
379!---Variables depending on keyword 'mode' -------------------------------------
380  NULLIFY(champo)
381
382  SELECT CASE(mode)
383  CASE('RUG'); title='Rugosite'
384  CASE('SIC'); title='Sea-ice'
385  CASE('SST'); title='SST'
386  CASE('ALB'); title='Albedo'
387  END SELECT
388  extrp=.FALSE.; IF(PRESENT(flag).AND.mode=='SST') extrp=flag
389  is_bcs=(mode=='SIC'.AND.ix_sic==1).OR.(mode=='SST'.AND.ix_sst==1)
390  idx=INDEX(fnam,'.nc')-1
391
392!--- GETTING SOME DIMENSIONAL VARIABLES FROM FILE -----------------------------
393  CALL msg(5,' Now reading file : '//TRIM(fnam))
394  CALL ncerr(NF90_OPEN(fnam, NF90_NOWRITE, ncid),fnam)
395  CALL ncerr(NF90_INQ_VARID(ncid, trim(varname), varid),fnam)
396  CALL ncerr(NF90_INQUIRE_VARIABLE(ncid, varid, dimids=dids),fnam)
397
398!--- Read unit for sea-ice and sst only
399  IF (mode=='SIC') THEN
400    ierr=NF90_GET_ATT(ncid, varid, 'units', unit_sic); CALL strclean(unit_sic)
401    IF(ierr/=NF90_NOERR) THEN; unit_sic='%'
402      CALL msg(0,'No unit in sea-ice file. Take percentage as default value')
403    ELSE IF(TRIM(unit_sic)=="%") THEN
404      CALL msg(0,'Sea-ice cover is a PERCENTAGE.')
405    ELSE IF(ANY(unit_sic==["1.0","1  "])) THEN; unit_sic="1"
406      CALL msg(0,'Sea-ice cover is a FRACTION.')
407    ELSE
408      CALL abort_physic('SIC','Unrecognized sea-ice unit: '//TRIM(unit_sic),1)
409    END IF
410  END IF
411  IF (mode=='SST') THEN
412    ierr=NF90_GET_ATT(ncid, varid, 'units', unit_sst); CALL strclean(unit_sst)
413    IF(ierr/=NF90_NOERR) THEN
414      CALL msg(0,'No unit in sst file. Take default: kelvins.')
415      unit_sst='X'
416    ELSE IF(ANY(unit_sst==["degC  ","DegC  "])) THEN; unit_sst='C'
417      CALL msg(0,'Sea-surface temperature is in CELCIUS DEGREES.')
418    ELSE IF(ANY(unit_sst==["K     ","Kelvin"])) THEN; unit_sst='K'
419      CALL msg(0,'Sea-surface temperature is in KELVINS.')
420    ELSE
421      CALL abort_physic('SST','Unrecognized sst unit: '//TRIM(unit_sst),1)
422    END IF
423  END IF
424
425!--- Longitude
426  CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(1), name=dnam, len=imdep),fnam)
427  ALLOCATE(dlon_ini(imdep), dlon(imdep))
428  CALL ncerr(NF90_INQ_VARID(ncid, dnam, varid), fnam)
429  CALL ncerr(NF90_GET_VAR(ncid, varid, dlon_ini), fnam)
430  CALL msg(5,'variable '//TRIM(dnam)//' dimension ', imdep)
431
432!--- Latitude
433  CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(2), name=dnam, len=jmdep),fnam)
434  ALLOCATE(dlat_ini(jmdep), dlat(jmdep))
435  CALL ncerr(NF90_INQ_VARID(ncid, dnam, varid), fnam)
436  CALL ncerr(NF90_GET_VAR(ncid, varid, dlat_ini), fnam)
437  CALL msg(5,'variable '//TRIM(dnam)//' dimension ', jmdep)
438
439!--- Time (variable is not needed - it is rebuilt - but calendar is)
440  CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(3), name=dnam, len=lmdep), fnam)
441  ALLOCATE(timeyear(lmdep+2))
442  CALL ncerr(NF90_INQ_VARID(ncid, dnam, varid), fnam)
443  cal_in=' '
444  IF(NF90_GET_ATT(ncid, varid, 'calendar', cal_in)/=NF90_NOERR) THEN
445    SELECT CASE(mode)
446      CASE('RUG', 'ALB'); cal_in='360d'
447      CASE('SIC', 'SST'); cal_in='gregorian'
448    END SELECT
449    CALL msg(0,'WARNING: missing "calendar" attribute for "time" in '&
450     &//TRIM(fnam)//'. Choosing default value.')
451  END IF
452  CALL strclean(cal_in)                     !--- REMOVE (WEIRD) NULL CHARACTERS
453  CALL msg(0,'var, calendar, dim: '//TRIM(dnam)//' '//TRIM(cal_in), lmdep)
454 
455!--- Determining input file number of days, depending on calendar
456  ndays_in=year_len(anneeref, cal_in)
457
458!--- Rebuilding input time vector (field from input file might be unreliable)
459  IF(lmdep==12) THEN
460    timeyear=mid_month(anneeref, cal_in)
461    CALL msg(0,'Monthly input file(s) for '//TRIM(title)//'.')
462  ELSE IF(lmdep==ndays_in) THEN
463    timeyear=[(REAL(k)-0.5,k=0,ndays_in+1)]
464    CALL msg(0,'Daily input file (no time interpolation).')
465  ELSE
466    WRITE(mess,'(a,i3,a,i3,a)')'Mismatching input file: found',lmdep,        &
467      ' records, 12/',ndays_in,' (monthly/daily needed).'
468    CALL abort_physic('mid_month',TRIM(mess),1)
469  END IF
470
471!--- GETTING THE FIELD AND INTERPOLATING IT ----------------------------------
472  ALLOCATE(champ(imdep, jmdep), champtime(iim, jjp1, lmdep+2))
473  IF(extrp) ALLOCATE(work(imdep, jmdep))
474  CALL msg(5,'')
475  CALL msg(5,'READ AND INTERPOLATE HORIZONTALLY ', lmdep, ' FIELDS.')
476  CALL ncerr(NF90_INQ_VARID(ncid, varname, varid), fnam)
477  DO l=1, lmdep
478    CALL ncerr(NF90_GET_VAR(ncid,varid,champ,[1,1,l],[imdep,jmdep,1]),fnam)
479    !--- Check whether values are acceptable for SIC, depending on unit.
480    !--- Dropped for mid-month boundary conditions datasets (BCS, ix_sic==1)
481    IF(mode=='SIC'.AND.ix_sic/=1) THEN
482      IF(TRIM(unit_sic)=="1".OR.TRIM(unit_sic)=="1.0") THEN
483        IF(ANY(champ>1.0+EPSFRA)) &
484          CALL abort_physic('SIC','Found sea-ice fractions greater than 1.')
485      ELSE IF(TRIM(unit_sic)=="%") THEN
486        IF(ANY(champ>100.0+EPSFRA)) &
487          CALL abort_physic('SIC','Found sea-ice percentages greater than 100.')
488!        IF(MAXVAL(champ)< 1.01) &
489!          CALL abort_physic('SIC','All sea-ice percentages lower than 1.')
490      END IF
491    END IF
492    CALL conf_dat2d(title, dlon_ini, dlat_ini, dlon, dlat, champ, .TRUE.)
493    IF(extrp) CALL extrapol(champ,imdep,jmdep,999999.,.TRUE.,.TRUE.,2,work)
494    IF(l==1) THEN
495      CALL msg(5,"----------------------------------------------------------")
496      CALL msg(5,"$$$ Barycentrique interpolation for "//TRIM(title)//" $$$")
497      CALL msg(5,"----------------------------------------------------------")
498    END IF
499    IF(mode=='RUG') champ=LOG(champ)
500    CALL inter_barxy(dlon,dlat(:jmdep-1),champ,rlonu(:iim),rlatv,champint)
501    IF(mode=='RUG') THEN
502      champint=EXP(champint)
503      WHERE(NINT(mask)/=1) champint=0.001
504    END IF
505    champtime(:, :, l+1)=champint
506  END DO
507  CALL ncerr(NF90_CLOSE(ncid), fnam)
508
509!--- FIRST RECORD: LAST ONE OF PREVIOUS YEAR (CURRENT YEAR IF UNAVAILABLE)
510  fnam_m=fnam(1:idx)//'_m.nc'
511  IF(NF90_OPEN(fnam_m,NF90_NOWRITE,ncid)==NF90_NOERR) THEN
512    CALL msg(0,'Reading previous year file ("'//TRIM(fnam_m)//'") last record for '//TRIM(title))
513    CALL ncerr(NF90_INQ_VARID(ncid, varname, varid),fnam_m)
514    CALL ncerr(NF90_INQUIRE_VARIABLE(ncid, varid, dimids=dids),fnam_m)
515    CALL ncerr(NF90_INQUIRE_DIMENSION(ncid, dids(3), len=l), fnam_m)
516    CALL ncerr(NF90_GET_VAR(ncid,varid,champ,[1,1,l],[imdep,jmdep,1]),fnam_m)
517    CALL ncerr(NF90_CLOSE(ncid), fnam_m)
518    CALL conf_dat2d(title, dlon_ini, dlat_ini, dlon, dlat, champ, .TRUE.)
519    IF(extrp) CALL extrapol(champ,imdep,jmdep,999999.,.TRUE.,.TRUE.,2,work)
520    IF(mode=='RUG') champ=LOG(champ)
521    CALL inter_barxy(dlon,dlat(:jmdep-1),champ,rlonu(:iim),rlatv,champint)
522    IF(mode=='RUG') THEN
523      champint=EXP(champint)
524      WHERE(NINT(mask)/=1) champint=0.001
525    END IF
526    champtime(:, :, 1)=champint
527  ELSE
528    CALL msg(0,'Using current year file ("'//TRIM(fnam)//'") last record for '//TRIM(title))
529    champtime(:, :, 1)=champtime(:, :, lmdep+1)
530  END IF
531
532!--- LAST RECORD: FIRST ONE OF NEXT YEAR (CURRENT YEAR IF UNAVAILABLE)
533  fnam_p=fnam(1:idx)//'_p.nc'
534  IF(NF90_OPEN(fnam_p,NF90_NOWRITE,ncid)==NF90_NOERR) THEN
535    CALL msg(0,'Reading next year file ("'//TRIM(fnam_p)//'") first record for '//TRIM(title))
536    CALL ncerr(NF90_INQ_VARID(ncid, varname, varid),fnam_p)
537    CALL ncerr(NF90_GET_VAR(ncid,varid,champ,[1,1,1],[imdep,jmdep,1]),fnam_p)
538    CALL ncerr(NF90_CLOSE(ncid), fnam_p)
539    CALL conf_dat2d(title, dlon_ini, dlat_ini, dlon, dlat, champ, .TRUE.)
540    IF(extrp) CALL extrapol(champ,imdep,jmdep,999999.,.TRUE.,.TRUE.,2,work)
541    IF(mode=='RUG') champ=LOG(champ)
542    CALL inter_barxy(dlon,dlat(:jmdep-1),champ,rlonu(:iim),rlatv,champint)
543    IF(mode=='RUG') THEN
544      champint=EXP(champint)
545      WHERE(NINT(mask)/=1) champint=0.001
546    END IF
547    champtime(:, :, lmdep+2)=champint
548  ELSE
549    CALL msg(0,'Using current year file ("'//TRIM(fnam)//'") first record for '//TRIM(title))
550    champtime(:, :, lmdep+2)=champtime(:, :, 2)
551  END IF
552  DEALLOCATE(dlon_ini, dlat_ini, dlon, dlat, champ)
553  IF(extrp) DEALLOCATE(work)
554
555!--- TIME INTERPOLATION ------------------------------------------------------
556  IF(prt_level>0) THEN
557     IF(ndays/=ndays_in) THEN
558        WRITE(lunout,*)'DIFFERENT YEAR LENGTHS:'
559        WRITE(lunout,*)' In the  input file: ',ndays_in
560        WRITE(lunout,*)' In the output file: ',ndays
561     END IF
562     IF(lmdep==ndays_in) THEN
563        WRITE(lunout, *)'NO TIME INTERPOLATION.'
564        WRITE(lunout, *)' Daily input file.'
565     ELSE
566        IF(     is_bcs) WRITE(lunout, *)'LINEAR TIME INTERPOLATION.'
567        IF(.NOT.is_bcs) WRITE(lunout, *)'SPLINES TIME INTERPOLATION.'
568        WRITE(lunout, *)' Input time vector: ', timeyear
569        WRITE(lunout, *)' Output time vector from 0 to ', ndays-1
570     END IF
571  END IF
572  ALLOCATE(champan(iip1, jjp1, ndays))
573
574  IF(lmdep==ndays_in) THEN  !--- DAILY DATA: NO     TIME INTERPOLATION
575     champan(1:iim,:,:)=champtime
576  ELSE IF(is_bcs) THEN      !--- BCS   DATA: LINEAR TIME INTERPOLATION
577    l=1
578    DO k=1, ndays
579      timeday = (REAL(k)-0.5)*REAL(ndays_in)/ndays
580      IF(timeyear(l+1)<timeday) l=l+1
581      al=(timeday-timeyear(l))/(timeyear(l+1)-timeyear(l))
582      DO j=1, jjp1
583        DO i=1, iim
584          champan(i,j,k) = champtime(i,j,l)+al*(champtime(i,j,l+1)-champtime(i,j,l))
585        END DO
586      END DO
587    END DO
588  ELSE                      !--- AVE   DATA: SPLINE TIME INTERPOLATION
589     skip = .false.
590     n_extrap = 0
591     ALLOCATE(yder(lmdep+2))
592     DO j=1, jjp1
593       DO i=1, iim
594         yder = pchsp_95(timeyear, champtime(i, j, :), ibeg=2, iend=2, &
595              vc_beg=0., vc_end=0.)
596         CALL pchfe_95(timeyear, champtime(i, j, :), yder, skip, &
597              arth(0.5, real(ndays_in) / ndays, ndays), champan(i, j, :), ierr)
598         if (ierr < 0) stop 1
599         n_extrap = n_extrap + ierr
600       END DO
601     END DO
602     IF(n_extrap /= 0) WRITE(lunout,*) "get_2Dfield pchfe_95: n_extrap = ", n_extrap
603     DEALLOCATE(yder)
604  END IF
605  champan(iip1, :, :)=champan(1, :, :)
606  DEALLOCATE(champtime, timeyear)
607
608!--- Checking the result
609  DO j=1, jjp1
610    CALL minmax(iip1, champan(1, j, 10), chmin, chmax)
611    IF (prt_level>5) WRITE(lunout, *)' ',TRIM(title),' at time 10 ', chmin, chmax, j
612  END DO
613
614!--- SPECIAL FILTER FOR SST: SST>271.38 --------------------------------------
615  IF(mode=='SST') THEN
616    IF(TRIM(unit_sst)=="K") THEN
617       ! Nothing to be done if the sst field is already in kelvins
618      CALL msg(0,'SST field is already in kelvins.')
619    ELSE
620       ! Convert sst field from celcius degrees to kelvins
621      CALL msg(0,'SST field converted from celcius degrees to kelvins.')
622      champan=champan+273.15
623    END IF
624    CALL msg(0,'Filtering SST: SST >= 271.38')
625    WHERE(champan<271.38) champan=271.38
626  END IF
627
628!--- SPECIAL FILTER FOR SIC: 0.0<SIC<1.0 -------------------------------------
629  IF(mode=='SIC') THEN
630    CALL msg(0,'Filtering SIC: 0.0 < Sea-ice < 1.0')
631    IF(TRIM(unit_sic)=="1") THEN
632       ! Nothing to be done if the sea-ice field is already in fraction of 1
633       ! This is the case for sea-ice in file cpl_atm_sic.nc
634       CALL msg(0,'Sea-ice field already in fraction of 1')
635    ELSE
636       ! Convert sea ice from percentage to fraction of 1
637       CALL msg(0,'Sea-ice field converted from percentage to fraction of 1.')
638       champan(:, :, :)=champan(:, :, :)/100.
639    END IF
640    champan(iip1, :, :)=champan(1, :, :)
641    WHERE(champan>1.0) champan=1.0
642    WHERE(champan<0.0) champan=0.0
643 END IF
644
645!--- DYNAMICAL TO PHYSICAL GRID ----------------------------------------------
646  ALLOCATE(champo(klon, ndays))
647  DO k=1, ndays
648    CALL gr_dyn_fi(1, iip1, jjp1, klon, champan(1, 1, k), champo(1, k))
649  END DO
650  DEALLOCATE(champan)
651
652END SUBROUTINE get_2Dfield
653!
654!-------------------------------------------------------------------------------
655
656
657!-------------------------------------------------------------------------------
658!
659SUBROUTINE start_init_orog0(lon_in,lat_in,phis,masque)
660!
661!-------------------------------------------------------------------------------
662  USE grid_noro_m, ONLY: grid_noro0
663  IMPLICIT NONE
664!===============================================================================
665! Purpose:  Compute "phis" just like it would be in start_init_orog.
666!===============================================================================
667! Arguments:
668  REAL,             INTENT(IN)    :: lon_in(:), lat_in(:)   ! dim (iml) (jml)
669  REAL,             INTENT(INOUT) :: phis(:,:), masque(:,:) ! dim (iml,jml)
670!-------------------------------------------------------------------------------
671! Local variables:
672  CHARACTER(LEN=256) :: modname="start_init_orog0"
673  INTEGER            :: fid, llm_tmp,ttm_tmp, iml,jml, iml_rel,jml_rel, itau(1)
674  REAL               :: lev(1), date, dt, deg2rad
675  REAL, ALLOCATABLE  :: lon_rad(:), lon_ini(:), lon_rel(:,:), relief_hi(:,:)
676  REAL, ALLOCATABLE  :: lat_rad(:), lat_ini(:), lat_rel(:,:)
677!-------------------------------------------------------------------------------
678  iml=assert_eq(SIZE(lon_in),SIZE(phis,1),SIZE(masque,1),TRIM(modname)//" iml")
679  jml=assert_eq(SIZE(lat_in),SIZE(phis,2),SIZE(masque,2),TRIM(modname)//" jml")
680  IF(iml/=iip1) CALL abort_gcm(TRIM(modname),'iml/=iip1',1)
681  IF(jml/=jjp1) CALL abort_gcm(TRIM(modname),'jml/=jjp1',1)
682  pi=2.0*ASIN(1.0); deg2rad=pi/180.0
683  IF(ANY(phis/=-99999.)) RETURN                  !--- phis ALREADY KNOWN
684
685!--- HIGH RESOLUTION OROGRAPHY
686  CALL flininfo(frelf, iml_rel, jml_rel, llm_tmp, ttm_tmp, fid)
687
688  ALLOCATE(lat_rel(iml_rel,jml_rel),lon_rel(iml_rel,jml_rel))
689  CALL flinopen(frelf, .FALSE., iml_rel, jml_rel, llm_tmp, lon_rel, lat_rel,   &
690                lev, ttm_tmp, itau, date, dt, fid)
691  ALLOCATE(relief_hi(iml_rel,jml_rel))
692  CALL flinget(fid, vrel, iml_rel, jml_rel, llm_tmp, ttm_tmp, 1, 1, relief_hi)
693  CALL flinclo(fid)
694
695!--- IF ANGLES ARE IN DEGREES, THEY ARE CONVERTED INTO RADIANS
696  ALLOCATE(lon_ini(iml_rel),lat_ini(jml_rel))
697  lon_ini(:)=lon_rel(:,1); IF(MAXVAL(lon_rel)>pi) lon_ini=lon_ini*deg2rad
698  lat_ini(:)=lat_rel(1,:); IF(MAXVAL(lat_rel)>pi) lat_ini=lat_ini*deg2rad
699
700!--- FIELDS ARE PROCESSED TO BE ON STANDARD ANGULAR DOMAINS
701  ALLOCATE(lon_rad(iml_rel),lat_rad(jml_rel))
702  CALL conf_dat2d(vrel, lon_ini, lat_ini, lon_rad, lat_rad, relief_hi, .FALSE.)
703  DEALLOCATE(lon_ini,lat_ini)
704
705!--- COMPUTING SURFACE GEOPOTENTIAL USING ROUTINE grid_noro0
706  WRITE(lunout,*)
707  WRITE(lunout,*)'*** Compute surface geopotential ***'
708
709!--- CALL OROGRAPHY MODULE (REDUCED VERSION) TO COMPUTE FIELDS
710  CALL grid_noro0(lon_rad, lat_rad, relief_hi, lon_in, lat_in, phis, masque)
711  phis = phis * 9.81
712  phis(iml,:) = phis(1,:)
713  DEALLOCATE(relief_hi,lon_rad,lat_rad)
714
715END SUBROUTINE start_init_orog0
716!
717!-------------------------------------------------------------------------------
718
719
720!-------------------------------------------------------------------------------
721!
722SUBROUTINE msg(lev,str1,i,str2)
723!
724!-------------------------------------------------------------------------------
725! Arguments:
726  INTEGER,                    INTENT(IN) :: lev
727  CHARACTER(LEN=*),           INTENT(IN) :: str1
728  INTEGER,          OPTIONAL, INTENT(IN) :: i
729  CHARACTER(LEN=*), OPTIONAL, INTENT(IN) :: str2
730!-------------------------------------------------------------------------------
731  IF(prt_level>=lev) THEN
732    IF(PRESENT(str2)) THEN
733      WRITE(lunout,*) TRIM(str1), i, TRIM(str2)
734    ELSE IF(PRESENT(i)) THEN
735      WRITE(lunout,*) TRIM(str1), i
736    ELSE
737      WRITE(lunout,*) TRIM(str1)
738    END IF
739  END IF
740
741END SUBROUTINE msg
742!
743!-------------------------------------------------------------------------------
744
745
746!-------------------------------------------------------------------------------
747!
748SUBROUTINE ncerr(ncres,fnam)
749!
750!-------------------------------------------------------------------------------
751! Purpose: NetCDF errors handling.
752!-------------------------------------------------------------------------------
753  USE netcdf, ONLY : NF90_NOERR, NF90_STRERROR
754  IMPLICIT NONE
755!-------------------------------------------------------------------------------
756! Arguments:
757  INTEGER,          INTENT(IN) :: ncres
758  CHARACTER(LEN=*), INTENT(IN) :: fnam
759!-------------------------------------------------------------------------------
760  IF(ncres/=NF90_NOERR) THEN
761    WRITE(lunout,*)'Problem with file '//TRIM(fnam)//' in routine limit_netcdf.'
762    CALL abort_physic('limit_netcdf',NF90_STRERROR(ncres),1)
763  END IF
764
765END SUBROUTINE ncerr
766!
767!-------------------------------------------------------------------------------
768
769
770!-------------------------------------------------------------------------------
771!
772SUBROUTINE strclean(s)
773!
774!-------------------------------------------------------------------------------
775  IMPLICIT NONE
776!-------------------------------------------------------------------------------
777! Purpose: Remove tail null characters from the input string.
778!-------------------------------------------------------------------------------
779! Parameters:
780  CHARACTER(LEN=*), INTENT(INOUT) :: s
781!-------------------------------------------------------------------------------
782! Local variable:
783  INTEGER :: k
784!-------------------------------------------------------------------------------
785  k=LEN_TRIM(s); DO WHILE(ICHAR(s(k:k))==0); s(k:k)=' '; k=LEN_TRIM(s); END DO
786
787END SUBROUTINE strclean
788!
789!-------------------------------------------------------------------------------
790
791#endif
792! of #ifndef CPP_1D
793END SUBROUTINE limit_netcdf
794
795END MODULE limit
796!
797!*******************************************************************************
798
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