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MODULE init_ssrf_m |
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! |
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!******************************************************************************* |
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USE indice_sol_mod, ONLY: is_ter, is_oce, is_oce, is_lic, epsfra |
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USE dimphy, ONLY: klon, zmasq |
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USE phys_state_var_mod, ONLY: pctsrf |
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USE geometry_mod, ONLY : longitude_deg, latitude_deg |
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USE grid_atob_m, ONLY: grille_m |
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USE ioipsl, ONLY: flininfo, flinopen, flinget, flinclo |
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USE ioipsl_getin_p_mod, ONLY: getin_p |
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USE comconst_mod, ONLY: im, pi |
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USE surface_data, ONLY: landice_opt |
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CHARACTER(LEN=256), PARAMETER :: icefname="landiceref.nc", icevar="landice" |
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PRIVATE |
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PUBLIC :: start_init_subsurf |
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include "iniprint.h" |
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include "dimensions.h" |
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include "paramet.h" |
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include "comgeom2.h" |
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CONTAINS |
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!------------------------------------------------------------------------------- |
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! |
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SUBROUTINE start_init_subsurf(known_mask) |
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! |
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!------------------------------------------------------------------------------- |
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! Purpose: Subsurfaces initialization. |
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!------------------------------------------------------------------------------- |
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! Comment: Called by etat0phys_netcdf ; also called by limit_netcdf in case |
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! no starting states are required (ok_etat0==.FALSE.). |
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!------------------------------------------------------------------------------- |
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IMPLICIT NONE |
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!------------------------------------------------------------------------------- |
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! Arguments: |
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LOGICAL, INTENT(IN) :: known_mask |
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!------------------------------------------------------------------------------- |
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! Local variables: |
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INTEGER :: iml_lic, jml_lic |
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INTEGER :: fid, llm_tmp, ttm_tmp, itaul(1), ji, j |
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REAL, ALLOCATABLE :: dlon_lic(:), lon_lic(:,:), fraclic (:,:) |
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REAL, ALLOCATABLE :: dlat_lic(:), lat_lic(:,:), flic_tmp(:,:), vtmp(:,:) |
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REAL :: date, lev(1), dt, deg2rad |
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LOGICAL :: no_ter_antartique ! If true, no land points are allowed at Antartic |
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!------------------------------------------------------------------------------- |
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deg2rad= pi/180.0 |
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!--- Physical grid points coordinates |
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DO j=2,jjm; latitude_deg((j-2)*iim+2:(j-1)*iim+1)=rlatu(j); END DO |
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DO j=2,jjm; longitude_deg((j-2)*iim+2:(j-1)*iim+1)=rlonv(1:im); END DO |
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latitude_deg(1) = pi/2.; latitude_deg(klon) = - pi/2. |
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latitude_deg(:)=latitude_deg(:)/deg2rad |
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longitude_deg(1) = 0.0; longitude_deg(klon) = 0.0; |
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longitude_deg(:)=longitude_deg(:)/deg2rad |
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! Compute ground geopotential, sub-cells quantities and possibly the mask. |
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! Sub-surfaces initialization |
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!******************************************************************************* |
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IF (landice_opt .LT. 2) THEN |
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! Continue with reading landice.nc file |
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WRITE(lunout,*)"Read landice.nc file to attribute is_lic fraction" |
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!--- Read and interpolate on model T-grid soil fraction and soil ice fraction. |
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CALL flininfo(icefname, iml_lic, jml_lic, llm_tmp, ttm_tmp, fid) |
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ALLOCATE(lat_lic(iml_lic,jml_lic),lon_lic(iml_lic,jml_lic)) |
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ALLOCATE(fraclic(iml_lic,jml_lic)) |
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CALL flinopen(icefname, .FALSE., iml_lic, jml_lic, llm_tmp, & |
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& lon_lic, lat_lic, lev, ttm_tmp, itaul, date, dt, fid) |
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CALL flinget(fid, icevar, iml_lic, jml_lic, llm_tmp, ttm_tmp, 1,1, fraclic) |
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CALL flinclo(fid) |
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WRITE(lunout,*)'landice dimensions: iml_lic, jml_lic : ',iml_lic,jml_lic |
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ALLOCATE(dlon_lic(iml_lic),dlat_lic(jml_lic)) |
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dlon_lic(:)=lon_lic(:,1); IF(MAXVAL(dlon_lic)>pi) dlon_lic=dlon_lic*pi/180. |
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dlat_lic(:)=lat_lic(1,:); IF(MAXVAL(dlat_lic)>pi) dlat_lic=dlat_lic*pi/180. |
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DEALLOCATE(lon_lic,lat_lic); ALLOCATE(flic_tmp(iip1,jjp1)) |
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CALL grille_m(dlon_lic,dlat_lic,fraclic,rlonv(1:iim),rlatu,flic_tmp(1:iim,:)) |
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flic_tmp(iip1,:)=flic_tmp(1,:) |
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!--- To the physical grid |
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pctsrf(:,:) = 0. |
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CALL gr_dyn_fi(1, iip1, jjp1, klon, flic_tmp, pctsrf(:,is_lic)) |
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DEALLOCATE(flic_tmp) |
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!--- Adequation with soil/sea mask |
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WHERE(pctsrf(:,is_lic)<EPSFRA) pctsrf(:,is_lic)=0. |
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WHERE(zmasq(:)<EPSFRA) pctsrf(:,is_lic)=0. |
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pctsrf(:,is_ter)=zmasq(:) |
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DO ji=1,klon |
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IF(zmasq(ji)>EPSFRA) THEN |
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IF(pctsrf(ji,is_lic)>=zmasq(ji)) THEN |
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pctsrf(ji,is_lic)=zmasq(ji) |
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pctsrf(ji,is_ter)=0. |
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ELSE |
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pctsrf(ji,is_ter)=zmasq(ji)-pctsrf(ji,is_lic) |
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IF(pctsrf(ji,is_ter)<EPSFRA) THEN |
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pctsrf(ji,is_ter)=0. |
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pctsrf(ji,is_lic)=zmasq(ji) |
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END IF |
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END IF |
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END IF |
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END DO |
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!--- Option no_ter_antartique removes all land fractions souther than 60S. |
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!--- Land ice is set instead of the land fractions on these latitudes. |
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!--- The ocean and sea-ice fractions are not changed. |
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no_ter_antartique=.FALSE. |
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CALL getin_p('no_ter_antartique',no_ter_antartique) |
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WRITE(lunout,*)"no_ter_antartique=",no_ter_antartique |
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IF (no_ter_antartique) THEN |
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! Remove all land fractions souther than 60S and set land-ice instead |
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WRITE(lunout,*) "Remove land fractions souther than 60deg south by increasing" |
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WRITE(lunout,*) "the continental ice fractions. No land can now be found at Antartic." |
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DO ji=1, klon |
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IF (latitude_deg(ji)<-60.0) THEN |
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pctsrf(ji,is_lic) = pctsrf(ji,is_lic) + pctsrf(ji,is_ter) |
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pctsrf(ji,is_ter) = 0 |
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END IF |
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END DO |
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END IF |
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ELSE |
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! landice_opt=2 and higher |
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WRITE(lunout,*) 'No landice is attributed is_lic sub-surface because landice_opt=2 or higher.' |
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WRITE(lunout,*) 'This means that the land model will handel land ice as well as all other land areas.' |
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pctsrf(:,is_ter) = zmasq(:) |
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pctsrf(:,is_lic) = 0.0 |
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END IF |
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!--- Sub-surface ocean and sea ice (sea ice set to zero for start). |
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pctsrf(:,is_oce)=(1.-zmasq(:)) |
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WHERE(pctsrf(:,is_oce)<EPSFRA) pctsrf(:,is_oce)=0. |
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IF(known_mask) pctsrf(:,is_oce)=1-zmasq(:) |
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!--- It is checked that the sub-surfaces sum is equal to 1. |
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ji=COUNT((ABS(SUM(pctsrf(:,:),dim=2))-1.0)>EPSFRA) |
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IF(ji/=0) WRITE(lunout,*) 'Sub-cell distribution problem for ',ji,' points' |
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END SUBROUTINE start_init_subsurf |
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! |
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!------------------------------------------------------------------------------- |
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END MODULE init_ssrf_m |
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! |
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!******************************************************************************* |