source: LMDZ5/branches/IPSLCM5A2.1/libf/dynphy_lonlat/inigeomphy_mod.F90 @ 3570

Last change on this file since 3570 was 2588, checked in by Ehouarn Millour, 8 years ago

-Small change in the dynamics/physics interface organization:
externalize (from iniphysiq) operations wich initialize settings
common to all physics packages (e.g. global grid definitions;
in practice initializations for routines either in phy_common
or in dynphy_lonlat) in inigeomphy (located in dynphy_lonlat).
iniphysiq should only initialize settings in the corresponding
physics package (e.g. phylmd for dynphy_lonlat/phylmd/iniphysiq).

  • Bug fix in phydev/iophy: is_south_pole_dyn replaces

is_south_pole since rev. 2429.

EM

File size: 8.7 KB
Line 
1!
2! $Id: $
3!
4MODULE inigeomphy_mod
5
6CONTAINS
7
8SUBROUTINE inigeomphy(iim,jjm,nlayer, &
9                     nbp, communicator, &
10                     rlatu,rlatv,rlonu,rlonv,aire,cu,cv)
11  USE mod_grid_phy_lmdz, ONLY: klon_glo,  & ! number of atmospheric columns (on full grid)
12                               regular_lonlat, &  ! regular longitude-latitude grid type
13                               nbp_lon, nbp_lat, nbp_lev
14  USE mod_phys_lmdz_para, ONLY: klon_omp, & ! number of columns (on local omp grid)
15                                klon_omp_begin, & ! start index of local omp subgrid
16                                klon_omp_end, & ! end index of local omp subgrid
17                                klon_mpi_begin ! start indes of columns (on local mpi grid)
18  USE geometry_mod, ONLY : init_geometry
19  USE physics_distribution_mod, ONLY : init_physics_distribution
20  USE regular_lonlat_mod, ONLY : init_regular_lonlat, &
21                                 east, west, north, south, &
22                                 north_east, north_west, &
23                                 south_west, south_east
24  USE mod_interface_dyn_phys, ONLY :  init_interface_dyn_phys
25  USE nrtype, ONLY: pi
26  IMPLICIT NONE
27
28  ! =======================================================================
29  ! Initialisation of the physical constants and some positional and
30  ! geometrical arrays for the physics
31  ! =======================================================================
32
33  include "iniprint.h"
34
35  INTEGER, INTENT (IN) :: nlayer ! number of atmospheric layers
36  INTEGER, INTENT (IN) :: iim ! number of atmospheric columns along longitudes
37  INTEGER, INTENT (IN) :: jjm ! number of atompsheric columns along latitudes
38  INTEGER, INTENT(IN) :: nbp ! number of physics columns for this MPI process
39  INTEGER, INTENT(IN) :: communicator ! MPI communicator
40  REAL, INTENT (IN) :: rlatu(jjm+1) ! latitudes of the physics grid
41  REAL, INTENT (IN) :: rlatv(jjm) ! latitude boundaries of the physics grid
42  REAL, INTENT (IN) :: rlonv(iim+1) ! longitudes of the physics grid
43  REAL, INTENT (IN) :: rlonu(iim+1) ! longitude boundaries of the physics grid
44  REAL, INTENT (IN) :: aire(iim+1,jjm+1) ! area of the dynamics grid (m2)
45  REAL, INTENT (IN) :: cu((iim+1)*(jjm+1)) ! cu coeff. (u_covariant = cu * u)
46  REAL, INTENT (IN) :: cv((iim+1)*jjm) ! cv coeff. (v_covariant = cv * v)
47
48  INTEGER :: ibegin, iend, offset
49  INTEGER :: i,j,k
50  CHARACTER (LEN=20) :: modname = 'inigeomphy'
51  CHARACTER (LEN=80) :: abort_message
52  REAL :: total_area_phy, total_area_dyn
53
54  ! boundaries, on global grid
55  REAL,ALLOCATABLE :: boundslon_reg(:,:)
56  REAL,ALLOCATABLE :: boundslat_reg(:,:)
57
58  ! global array, on full physics grid:
59  REAL,ALLOCATABLE :: latfi_glo(:)
60  REAL,ALLOCATABLE :: lonfi_glo(:)
61  REAL,ALLOCATABLE :: cufi_glo(:)
62  REAL,ALLOCATABLE :: cvfi_glo(:)
63  REAL,ALLOCATABLE :: airefi_glo(:)
64  REAL,ALLOCATABLE :: boundslonfi_glo(:,:)
65  REAL,ALLOCATABLE :: boundslatfi_glo(:,:)
66
67  ! local arrays, on given MPI/OpenMP domain:
68  REAL,ALLOCATABLE,SAVE :: latfi(:)
69  REAL,ALLOCATABLE,SAVE :: lonfi(:)
70  REAL,ALLOCATABLE,SAVE :: cufi(:)
71  REAL,ALLOCATABLE,SAVE :: cvfi(:)
72  REAL,ALLOCATABLE,SAVE :: airefi(:)
73  REAL,ALLOCATABLE,SAVE :: boundslonfi(:,:)
74  REAL,ALLOCATABLE,SAVE :: boundslatfi(:,:)
75!$OMP THREADPRIVATE (latfi,lonfi,cufi,cvfi,airefi,boundslonfi,boundslatfi)
76
77  ! Initialize Physics distibution and parameters and interface with dynamics
78  IF (iim*jjm>1) THEN ! general 3D case
79    CALL init_physics_distribution(regular_lonlat,4, &
80                                 nbp,iim,jjm+1,nlayer,communicator)
81  ELSE ! For 1D model
82    CALL init_physics_distribution(regular_lonlat,4, &
83                                 1,1,1,nlayer,communicator)
84  ENDIF
85  CALL init_interface_dyn_phys
86 
87  ! init regular global longitude-latitude grid points and boundaries
88  ALLOCATE(boundslon_reg(iim,2))
89  ALLOCATE(boundslat_reg(jjm+1,2))
90 
91  DO i=1,iim
92   boundslon_reg(i,east)=rlonu(i)
93   boundslon_reg(i,west)=rlonu(i+1)
94  ENDDO
95
96  boundslat_reg(1,north)= PI/2
97  boundslat_reg(1,south)= rlatv(1)
98  DO j=2,jjm
99   boundslat_reg(j,north)=rlatv(j-1)
100   boundslat_reg(j,south)=rlatv(j)
101  ENDDO
102  boundslat_reg(jjm+1,north)= rlatv(jjm)
103  boundslat_reg(jjm+1,south)= -PI/2
104
105  ! Write values in module regular_lonlat_mod
106  CALL init_regular_lonlat(iim,jjm+1, rlonv(1:iim), rlatu, &
107                           boundslon_reg, boundslat_reg)
108
109  ! Generate global arrays on full physics grid
110  ALLOCATE(latfi_glo(klon_glo),lonfi_glo(klon_glo))
111  ALLOCATE(cufi_glo(klon_glo),cvfi_glo(klon_glo))
112  ALLOCATE(airefi_glo(klon_glo))
113  ALLOCATE(boundslonfi_glo(klon_glo,4))
114  ALLOCATE(boundslatfi_glo(klon_glo,4))
115
116  IF (klon_glo>1) THEN ! general case
117    ! North pole
118    latfi_glo(1)=rlatu(1)
119    lonfi_glo(1)=0.
120    cufi_glo(1) = cu(1)
121    cvfi_glo(1) = cv(1)
122    boundslonfi_glo(1,north_east)=0
123    boundslatfi_glo(1,north_east)=PI/2
124    boundslonfi_glo(1,north_west)=2*PI
125    boundslatfi_glo(1,north_west)=PI/2
126    boundslonfi_glo(1,south_west)=2*PI
127    boundslatfi_glo(1,south_west)=rlatv(1)
128    boundslonfi_glo(1,south_east)=0
129    boundslatfi_glo(1,south_east)=rlatv(1)
130    DO j=2,jjm
131      DO i=1,iim
132        k=(j-2)*iim+1+i
133        latfi_glo(k)= rlatu(j)
134        lonfi_glo(k)= rlonv(i)
135        cufi_glo(k) = cu((j-1)*(iim+1)+i)
136        cvfi_glo(k) = cv((j-1)*(iim+1)+i)
137        boundslonfi_glo(k,north_east)=rlonu(i)
138        boundslatfi_glo(k,north_east)=rlatv(j-1)
139        boundslonfi_glo(k,north_west)=rlonu(i+1)
140        boundslatfi_glo(k,north_west)=rlatv(j-1)
141        boundslonfi_glo(k,south_west)=rlonu(i+1)
142        boundslatfi_glo(k,south_west)=rlatv(j)
143        boundslonfi_glo(k,south_east)=rlonu(i)
144        boundslatfi_glo(k,south_east)=rlatv(j)
145      ENDDO
146    ENDDO
147    ! South pole
148    latfi_glo(klon_glo)= rlatu(jjm+1)
149    lonfi_glo(klon_glo)= 0.
150    cufi_glo(klon_glo) = cu((iim+1)*jjm+1)
151    cvfi_glo(klon_glo) = cv((iim+1)*jjm-iim)
152    boundslonfi_glo(klon_glo,north_east)= 0
153    boundslatfi_glo(klon_glo,north_east)= rlatv(jjm)
154    boundslonfi_glo(klon_glo,north_west)= 2*PI
155    boundslatfi_glo(klon_glo,north_west)= rlatv(jjm)
156    boundslonfi_glo(klon_glo,south_west)= 2*PI
157    boundslatfi_glo(klon_glo,south_west)= -PI/2
158    boundslonfi_glo(klon_glo,south_east)= 0
159    boundslatfi_glo(klon_glo,south_east)= -Pi/2
160
161    ! build airefi(), mesh area on physics grid
162    CALL gr_dyn_fi(1,iim+1,jjm+1,klon_glo,aire,airefi_glo)
163    ! Poles are single points on physics grid
164    airefi_glo(1)=sum(aire(1:iim,1))
165    airefi_glo(klon_glo)=sum(aire(1:iim,jjm+1))
166
167    ! Sanity check: do total planet area match between physics and dynamics?
168    total_area_dyn=sum(aire(1:iim,1:jjm+1))
169    total_area_phy=sum(airefi_glo(1:klon_glo))
170    IF (total_area_dyn/=total_area_phy) THEN
171      WRITE (lunout, *) 'inigeomphy: planet total surface discrepancy !!!'
172      WRITE (lunout, *) '     in the dynamics total_area_dyn=', total_area_dyn
173      WRITE (lunout, *) '  but in the physics total_area_phy=', total_area_phy
174      IF (abs(total_area_dyn-total_area_phy)>0.00001*total_area_dyn) THEN
175        ! stop here if the relative difference is more than 0.001%
176        abort_message = 'planet total surface discrepancy'
177        CALL abort_gcm(modname, abort_message, 1)
178      ENDIF
179    ENDIF
180  ELSE ! klon_glo==1, running the 1D model
181    ! just copy over input values
182    latfi_glo(1)=rlatu(1)
183    lonfi_glo(1)=rlonv(1)
184    cufi_glo(1)=cu(1)
185    cvfi_glo(1)=cv(1)
186    airefi_glo(1)=aire(1,1)
187    boundslonfi_glo(1,north_east)=rlonu(1)
188    boundslatfi_glo(1,north_east)=PI/2
189    boundslonfi_glo(1,north_west)=rlonu(2)
190    boundslatfi_glo(1,north_west)=PI/2
191    boundslonfi_glo(1,south_west)=rlonu(2)
192    boundslatfi_glo(1,south_west)=rlatv(1)
193    boundslonfi_glo(1,south_east)=rlonu(1)
194    boundslatfi_glo(1,south_east)=rlatv(1)
195  ENDIF ! of IF (klon_glo>1)
196
197!$OMP PARALLEL
198  ! Now generate local lon/lat/cu/cv/area/bounds arrays
199  ALLOCATE(latfi(klon_omp),lonfi(klon_omp),cufi(klon_omp),cvfi(klon_omp))
200  ALLOCATE(airefi(klon_omp))
201  ALLOCATE(boundslonfi(klon_omp,4))
202  ALLOCATE(boundslatfi(klon_omp,4))
203
204
205  offset = klon_mpi_begin - 1
206  airefi(1:klon_omp) = airefi_glo(offset+klon_omp_begin:offset+klon_omp_end)
207  cufi(1:klon_omp) = cufi_glo(offset+klon_omp_begin:offset+klon_omp_end)
208  cvfi(1:klon_omp) = cvfi_glo(offset+klon_omp_begin:offset+klon_omp_end)
209  lonfi(1:klon_omp) = lonfi_glo(offset+klon_omp_begin:offset+klon_omp_end)
210  latfi(1:klon_omp) = latfi_glo(offset+klon_omp_begin:offset+klon_omp_end)
211  boundslonfi(1:klon_omp,:) = boundslonfi_glo(offset+klon_omp_begin:offset+klon_omp_end,:)
212  boundslatfi(1:klon_omp,:) = boundslatfi_glo(offset+klon_omp_begin:offset+klon_omp_end,:)
213
214  ! copy over local grid longitudes and latitudes
215  CALL init_geometry(klon_omp,lonfi,latfi,boundslonfi,boundslatfi, &
216                     airefi,cufi,cvfi)
217
218!$OMP END PARALLEL
219
220
221END SUBROUTINE inigeomphy
222
223END MODULE inigeomphy_mod
224
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