source: trunk/LMDZ.COMMON/libf/evolution/read_data_GCM.F90 @ 2857

Last change on this file since 2857 was 2855, checked in by llange, 3 years ago

PEM
Documentation of the main subroutines, and variables.
Unused programs have been removed.
LL
File size: 11.8 KB
Line 
1!
2! $Id $
3!
4SUBROUTINE read_data_GCM(fichnom,timelen, iim_input,jjm_input,min_h2o_ice_s,min_co2_ice_s,vmr_co2_gcm,ps_GCM, &
5             min_co2_ice_slope,min_h2o_ice_slope,nslope,tsurf_ave,tsoil_ave,tsurf_gcm,tsoil_gcm,TI_ave,q_co2_GCM,q_h2o_GCM,co2_ice_slope, &
6             watersurf_density,watersoil_density)
7
8      use netcdf, only: nf90_open,NF90_NOWRITE,nf90_noerr,nf90_strerror, &
9                        nf90_get_var, nf90_inq_varid, nf90_inq_dimid, &
10                        nf90_inquire_dimension,nf90_close
11      use comsoil_h, only: nsoilmx
12      USE comsoil_h_PEM, ONLY: soil_pem
13
14      IMPLICIT NONE
15
16!=======================================================================
17!
18! Purpose: Read initial confitions file from the GCM
19!
20! Authors: RV & LL
21!=======================================================================
22
23  include "dimensions.h"
24
25!===============================================================================
26! Arguments:
27
28  CHARACTER(LEN=*), INTENT(IN) :: fichnom          !--- FILE NAME
29  INTEGER, INTENT(IN) :: timelen                   ! number of times stored in the file
30  INTEGER :: iim_input,jjm_input,nslope            ! number of points in the lat x lon dynamical grid, number of subgrid slopes
31
32! Ouputs
33  REAL, INTENT(OUT) ::  min_h2o_ice_s(iim_input+1,jjm_input+1) ! Minimum of h2o ice, mesh averaged of the year  [kg/m^2]
34  REAL, INTENT(OUT) ::  min_co2_ice_s(iim_input+1,jjm_input+1) ! Minimum of co2 ice, mesh averaged  of the year [kg/m^2]
35  REAL, INTENT(OUT) ::  min_co2_ice_slope(iim_input+1,jjm_input+1,nslope) ! Minimum of co2 ice  per slope of the year [kg/m^2]
36  REAL, INTENT(OUT) ::  min_h2o_ice_slope(iim_input+1,jjm_input+1,nslope) ! Minimum of h2o ice per slope of the year [kg/m^2]
37  REAL, INTENT(OUT) ::  vmr_co2_gcm(iim_input+1,jjm_input+1,timelen)      ! CO2 volume mixing ratio in the first layer  [mol/m^3]
38  REAL, INTENT(OUT) ::  q_h2o_GCM(iim_input+1,jjm_input+1,timelen)        ! H2O mass mixing ratio in the first layer [kg/m^3]
39  REAL, INTENT(OUT) ::  q_co2_GCM(iim_input+1,jjm_input+1,timelen)        ! CO2 mass mixing ratio in the first layer [kg/m^3]
40  REAL,  INTENT(OUT) ::  ps_GCM(iim_input+1,jjm_input+1,timelen)          ! Surface Pressure [Pa]
41  REAL, INTENT(OUT) ::  co2_ice_slope(iim_input+1,jjm_input+1,nslope,timelen) ! co2 ice amount per  slope of the year [kg/m^2]
42
43!SOIL
44  REAL, INTENT(OUT) ::  tsurf_ave(iim_input+1,jjm_input+1,nslope)         ! Average surface temperature of the concatenated file [K]
45  REAL, INTENT(OUT) ::  tsoil_ave(iim_input+1,jjm_input+1,nsoilmx,nslope) ! Average soil temperature of the concatenated file [K]
46  REAL ,INTENT(OUT) ::  tsurf_gcm(iim_input+1,jjm_input+1,nslope,timelen)                  ! Surface temperature of the concatenated file, time series [K]
47  REAL , INTENT(OUT) ::  tsoil_gcm(iim_input+1,jjm_input+1,nsoilmx,nslope,timelen)         ! Soil temperature of the concatenated file, time series [K]
48  REAL , INTENT(OUT) ::  watersurf_density(iim_input+1,jjm_input+1,nslope,timelen)         ! Water density at the surface, time series [kg/m^3]
49  REAL , INTENT(OUT) ::  watersoil_density(iim_input+1,jjm_input+1,nsoilmx,nslope,timelen) ! Water density in the soil layer, time series [kg/m^3]
50  REAL ::  TI_gcm(iim_input+1,jjm_input+1,nsoilmx,nslope,timelen)                          ! Thermal Inertia  of the concatenated file, times series [SI]
51  REAL, INTENT(OUT) ::  TI_ave(iim_input+1,jjm_input+1,nsoilmx,nslope)                     ! Average Thermal Inertia  of the concatenated file [SI]
52!===============================================================================
53!   Local Variables
54  CHARACTER(LEN=256) :: msg, var, modname               ! for reading
55  INTEGER :: iq, fID, vID, idecal                       ! for reading
56  INTEGER :: ierr                                       ! for reading
57  CHARACTER(len=12) :: start_file_type="earth" ! default start file type
58
59  REAL,ALLOCATABLE :: time(:) ! times stored in start
60  INTEGER :: indextime ! index of selected time
61
62  INTEGER :: edges(4),corner(4)
63  INTEGER :: i,j,t                                                     ! loop variables
64  real,save :: m_co2, m_noco2, A , B, mmean                            ! Molar Mass of co2 and no co2, A;B intermediate variables to compute the mean molar mass of the layer
65
66  INTEGER :: islope                                                    ! loop for variables
67  CHARACTER*2 :: num                                                   ! for reading sloped variables
68  REAL, ALLOCATABLE ::  h2o_ice_s(:,:,:)                               ! h2o ice, mesh averaged, of the concatenated file [kg/m^2]
69  REAL, ALLOCATABLE ::  co2_ice_s(:,:,:)                               ! co2 ice, mesh averaged, of the concatenated file [kg/m^2]
70  REAL, ALLOCATABLE ::  h2o_ice_s_slope(:,:,:,:)                       ! h2o ice per slope of the concatenated file [kg/m^2]
71
72!-----------------------------------------------------------------------
73  modname="read_data_gcm"
74
75      m_co2 = 44.01E-3  ! CO2 molecular mass (kg/mol)   
76      m_noco2 = 33.37E-3  ! Non condensible mol mass (kg/mol)   
77      A =(1/m_co2 - 1/m_noco2)
78      B=1/m_noco2
79
80      allocate(co2_ice_s(iim+1,jjm+1,timelen))
81      allocate(h2o_ice_s_slope(iim+1,jjm+1,nslope,timelen))
82      allocate(h2o_ice_s(iim+1,jjm+1,timelen))
83
84  print *, "Opening ", fichnom, "..."
85
86!  Open initial state NetCDF file
87  var=fichnom
88  CALL err(NF90_OPEN(var,NF90_NOWRITE,fID),"open",var)
89
90     print *, "Downloading data for h2oice ..."
91
92! Get h2o_ice_s of the concatenated file
93  CALL get_var3("h2o_ice_s"   ,h2o_ice_s)
94
95     print *, "Downloading data for h2oice done"
96     print *, "Downloading data for co2ice ..."
97
98  CALL get_var3("co2ice"   ,co2_ice_s)
99
100     print *, "Downloading data for co2ice done"
101     print *, "Downloading data for vmr co2..."
102
103  CALL get_var3("co2_cropped"   ,q_co2_GCM)
104
105     print *, "Downloading data for vmr co2 done"
106     print *, "Downloading data for vmr h20..."
107
108  CALL get_var3("h2o_cropped"   ,q_h2o_GCM)
109
110     print *, "Downloading data for vmr h2o done"
111     print *, "Downloading data for surface pressure ..."
112
113  CALL get_var3("ps"   ,ps_GCM)
114
115     print *, "Downloading data for surface pressure done"
116     print *, "nslope=", nslope
117     print *, "Downloading data for co2ice_slope ..."
118
119if(nslope.gt.1) then
120
121DO islope=1,nslope
122  write(num,fmt='(i2.2)') islope
123  call get_var3("co2ice_slope"//num,co2_ice_slope(:,:,islope,:))
124ENDDO
125
126     print *, "Downloading data for co2ice_slope done"
127     print *, "Downloading data for h2o_ice_s_slope ..."
128
129DO islope=1,nslope
130  write(num,fmt='(i2.2)') islope
131  call get_var3("h2o_ice_s_slope"//num,h2o_ice_s_slope(:,:,islope,:))
132ENDDO
133
134     print *, "Downloading data for h2o_ice_s_slope done"
135     print *, "Downloading data for tsurf_slope ..."
136
137DO islope=1,nslope
138  write(num,fmt='(i2.2)') islope
139  call get_var3("tsurf_slope"//num,tsurf_gcm(:,:,islope,:))
140ENDDO
141
142     print *, "Downloading data for tsurf_slope done"
143
144     if(soil_pem) then
145
146     print *, "Downloading data for tsoil_slope ..."
147
148DO islope=1,nslope
149  write(num,fmt='(i2.2)') islope
150  call get_var4("tsoil_slope"//num,tsoil_gcm(:,:,:,islope,:))
151ENDDO
152
153     print *, "Downloading data for tsoil_slope done"
154     print *, "Downloading data for inertiesoil_slope ..."
155
156DO islope=1,nslope
157  write(num,fmt='(i2.2)') islope
158  call get_var4("inertiesoil_slope"//num,TI_gcm(:,:,:,islope,:))
159ENDDO
160
161     print *, "Downloading data for inertiesoil_slope done"
162
163     print *, "Downloading data for watersoil_density ..."
164
165DO islope=1,nslope
166  write(num,fmt='(i2.2)') islope
167  call get_var4("Waterdensity_soil_slope"//num,watersoil_density(:,:,:,islope,:))
168ENDDO
169
170     print *, "Downloading data for  watersoil_density  done"
171
172     print *, "Downloading data for  watersurf_density  ..."
173
174DO islope=1,nslope
175  write(num,fmt='(i2.2)') islope
176  call get_var3("Waterdensity_surface"//num,watersurf_density(:,:,islope,:))
177ENDDO
178
179     print *, "Downloading data for  watersurf_density  done"
180
181  endif !soil_pem
182
183  else !nslope=1 no slope, we copy all the values
184    co2_ice_slope(:,:,1,:)=co2_ice_s(:,:,:)
185    h2o_ice_s_slope(:,:,1,:)=h2o_ice_s(:,:,:)
186    call get_var3("tsurf",tsurf_gcm(:,:,1,:))
187    if(soil_pem) then
188      call get_var4("tsoil",tsoil_gcm(:,:,:,1,:))
189      call get_var4("inertiesoil",TI_gcm(:,:,:,1,:))
190    endif !soil_pem
191  endif !nslope=1
192
193! Compute the minimum over the year for each point
194  print *, "Computing the min of h2o_ice"
195  min_h2o_ice_s(:,:)=minval(h2o_ice_s,3)
196  print *, "Computing the min of co2_ice"
197  min_co2_ice_s(:,:)=minval(co2_ice_s,3)
198
199  print *, "Computing the min of h2o_ice_slope"
200  min_h2o_ice_slope(:,:,:)=minval(h2o_ice_s_slope,4)
201  print *, "Computing the min of co2_ice_slope"
202  min_co2_ice_slope(:,:,:)=minval(co2_ice_slope,4)
203
204!Compute averages
205
206    print *, "Computing average of tsurf"
207    tsurf_ave(:,:,:)=SUM(tsurf_gcm(:,:,:,:),4)/timelen
208
209  if(soil_pem) then
210    print *, "Computing average of tsoil"
211    tsoil_ave(:,:,:,:)=SUM(tsoil_gcm(:,:,:,:,:),5)/timelen
212    print *, "Computing average of TI"
213    TI_ave(:,:,:,:)=SUM(TI_gcm(:,:,:,:,:),5)/timelen
214  endif
215
216! By definition, a density is positive, we get rid of the negative values
217  DO i=1,iim+1
218    DO j = 1, jjm+1
219       if (min_co2_ice_s(i,j).LT.0) then
220          min_h2o_ice_s(i,j)  = 0.
221          min_co2_ice_s(i,j)  = 0.
222       endif
223       DO islope=1,nslope
224          if (min_co2_ice_slope(i,j,islope).LT.0) then
225            min_co2_ice_slope(i,j,islope)  = 0.
226          endif
227          if (min_h2o_ice_slope(i,j,islope).LT.0) then
228            min_h2o_ice_slope(i,j,islope)  = 0.
229          endif
230       ENDDO
231    ENDDO
232  ENDDO
233
234  DO i=1,iim+1
235    DO j = 1, jjm+1
236      DO t = 1, timelen
237         if (q_co2_GCM(i,j,t).LT.0) then
238              q_co2_GCM(i,j,t)=1E-10
239         elseif (q_co2_GCM(i,j,t).GT.1) then
240              q_co2_GCM(i,j,t)=1.
241         endif
242         if (q_h2o_GCM(i,j,t).LT.0) then
243              q_h2o_GCM(i,j,t)=1E-30
244         elseif (q_h2o_GCM(i,j,t).GT.1) then
245              q_h2o_GCM(i,j,t)=1.
246         endif
247         mmean=1/(A*q_co2_GCM(i,j,t) +B)
248         vmr_co2_gcm(i,j,t) = q_co2_GCM(i,j,t)*mmean/m_co2
249      ENDDO
250    ENDDO
251  ENDDO
252
253
254      deallocate(co2_ice_s)
255      deallocate(h2o_ice_s_slope)
256      deallocate(h2o_ice_s)
257
258
259  CONTAINS
260
261SUBROUTINE check_dim(n1,n2,str1,str2)
262  INTEGER,          INTENT(IN) :: n1, n2
263  CHARACTER(LEN=*), INTENT(IN) :: str1, str2
264  CHARACTER(LEN=256) :: s1, s2
265  IF(n1/=n2) THEN
266    s1='value of '//TRIM(str1)//' ='
267    s2=' read in starting file differs from parametrized '//TRIM(str2)//' ='
268    WRITE(msg,'(10x,a,i4,2x,a,i4)')TRIM(s1),n1,TRIM(s2),n2
269    CALL ABORT_gcm(TRIM(modname),TRIM(msg),1)
270  END IF
271END SUBROUTINE check_dim
272
273
274SUBROUTINE get_var1(var,v)
275  CHARACTER(LEN=*), INTENT(IN)  :: var
276  REAL,             INTENT(OUT) :: v(:)
277  CALL err(NF90_INQ_VARID(fID,var,vID),"inq",var)
278  CALL err(NF90_GET_VAR(fID,vID,v),"get",var)
279END SUBROUTINE get_var1
280
281
282SUBROUTINE get_var3(var,v) ! on U grid
283  CHARACTER(LEN=*), INTENT(IN)  :: var
284  REAL,             INTENT(OUT) :: v(:,:,:)
285  CALL err(NF90_INQ_VARID(fID,var,vID),"inq",var)
286  CALL err(NF90_GET_VAR(fID,vID,v),"get",var)
287
288END SUBROUTINE get_var3
289
290SUBROUTINE get_var4(var,v)
291  CHARACTER(LEN=*), INTENT(IN)  :: var
292  REAL,             INTENT(OUT) :: v(:,:,:,:)
293  CALL err(NF90_INQ_VARID(fID,var,vID),"inq",var)
294  CALL err(NF90_GET_VAR(fID,vID,v),"get",var)
295END SUBROUTINE get_var4
296
297SUBROUTINE err(ierr,typ,nam)
298  INTEGER,          INTENT(IN) :: ierr   !--- NetCDF ERROR CODE
299  CHARACTER(LEN=*), INTENT(IN) :: typ    !--- TYPE OF OPERATION
300  CHARACTER(LEN=*), INTENT(IN) :: nam    !--- FIELD/FILE NAME
301  IF(ierr==NF90_NoERR) RETURN
302  SELECT CASE(typ)
303    CASE('inq');   msg="Field <"//TRIM(nam)//"> is missing"
304    CASE('get');   msg="Reading failed for <"//TRIM(nam)//">"
305    CASE('open');  msg="File opening failed for <"//TRIM(nam)//">"
306    CASE('close'); msg="File closing failed for <"//TRIM(nam)//">"
307  END SELECT
308  CALL ABORT_gcm(TRIM(modname),TRIM(msg),ierr)
309END SUBROUTINE err
310
311END SUBROUTINE read_data_gcm
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