| 1 | ! |
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| 2 | ! $Id: iniphysiq.F 1403 2010-07-01 09:02:53Z fairhead $ |
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| 3 | ! |
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| 4 | MODULE iniphysiq_mod |
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| 5 | |
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| 6 | CONTAINS |
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| 7 | |
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| 8 | SUBROUTINE iniphysiq(iim,jjm,nlayer,punjours, pdayref,ptimestep, & |
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| 9 | rlatu,rlatv,rlonu,rlonv,aire,cu,cv, & |
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| 10 | prad,pg,pr,pcpp,iflag_phys) |
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| 11 | USE dimphy, ONLY: klev ! number of atmospheric levels |
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| 12 | USE mod_grid_phy_lmdz, ONLY: klon_glo ! number of atmospheric columns |
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| 13 | ! (on full grid) |
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| 14 | USE mod_phys_lmdz_para, ONLY: klon_omp, & ! number of columns (on local omp grid) |
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| 15 | klon_omp_begin, & ! start index of local omp subgrid |
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| 16 | klon_omp_end, & ! end index of local omp subgrid |
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| 17 | klon_mpi_begin ! start indes of columns (on local mpi grid) |
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| 18 | USE comgeomphy, ONLY: initcomgeomphy, & |
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| 19 | airephy, & ! physics grid area (m2) |
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| 20 | cuphy, & ! cu coeff. (u_covariant = cu * u) |
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| 21 | cvphy, & ! cv coeff. (v_covariant = cv * v) |
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| 22 | rlond, & ! longitudes |
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| 23 | rlatd ! latitudes |
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| 24 | USE comcstphy, ONLY: rradius, & ! planet radius (m) |
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| 25 | rr, & ! recuced gas constant: R/molar mass of atm |
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| 26 | rg, & ! gravity |
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| 27 | rcpp ! specific heat of the atmosphere |
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| 28 | ! USE phyaqua_mod, ONLY: iniaqua |
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| 29 | USE regular_lonlat_mod, ONLY : init_regular_lonlat, & |
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| 30 | east, west, north, south, & |
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| 31 | north_east, north_west, & |
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| 32 | south_west, south_east |
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| 33 | USE nrtype, ONLY: pi |
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| 34 | IMPLICIT NONE |
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| 35 | ! |
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| 36 | !======================================================================= |
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| 37 | ! Initialisation of the physical constants and some positional and |
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| 38 | ! geometrical arrays for the physics |
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| 39 | !======================================================================= |
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| 40 | |
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| 41 | |
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| 42 | include "iniprint.h" |
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| 43 | |
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| 44 | REAL,INTENT(IN) :: prad ! radius of the planet (m) |
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| 45 | REAL,INTENT(IN) :: pg ! gravitational acceleration (m/s2) |
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| 46 | REAL,INTENT(IN) :: pr ! ! reduced gas constant R/mu |
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| 47 | REAL,INTENT(IN) :: pcpp ! specific heat Cp |
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| 48 | REAL,INTENT(IN) :: punjours ! length (in s) of a standard day |
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| 49 | INTEGER, INTENT (IN) :: nlayer ! number of atmospheric layers |
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| 50 | INTEGER, INTENT (IN) :: iim ! number of atmospheric coulumns along longitudes |
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| 51 | INTEGER, INTENT (IN) :: jjm ! number of atompsheric columns along latitudes |
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| 52 | REAL, INTENT (IN) :: rlatu(jjm+1) ! latitudes of the physics grid |
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| 53 | REAL, INTENT (IN) :: rlatv(jjm) ! latitude boundaries of the physics grid |
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| 54 | REAL, INTENT (IN) :: rlonv(iim+1) ! longitudes of the physics grid |
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| 55 | REAL, INTENT (IN) :: rlonu(iim+1) ! longitude boundaries of the physics grid |
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| 56 | REAL, INTENT (IN) :: aire(iim+1,jjm+1) ! area of the dynamics grid (m2) |
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| 57 | REAL, INTENT (IN) :: cu((iim+1)*(jjm+1)) ! cu coeff. (u_covariant = cu * u) |
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| 58 | REAL, INTENT (IN) :: cv((iim+1)*jjm) ! cv coeff. (v_covariant = cv * v) |
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| 59 | INTEGER, INTENT (IN) :: pdayref ! reference day of for the simulation |
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| 60 | REAL,INTENT(IN) :: ptimestep !physics time step (s) |
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| 61 | INTEGER,INTENT(IN) :: iflag_phys ! type of physics to be called |
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| 62 | |
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| 63 | INTEGER :: ibegin,iend,offset |
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| 64 | INTEGER :: i,j |
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| 65 | CHARACTER (LEN=20) :: modname='iniphysiq' |
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| 66 | CHARACTER (LEN=80) :: abort_message |
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| 67 | REAL :: total_area_phy, total_area_dyn |
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| 68 | |
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| 69 | ! boundaries, on global grid |
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| 70 | REAL,ALLOCATABLE :: boundslon_reg(:,:) |
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| 71 | REAL,ALLOCATABLE :: boundslat_reg(:,:) |
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| 72 | |
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| 73 | ! global array, on full physics grid: |
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| 74 | REAL,ALLOCATABLE :: latfi(:) |
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| 75 | REAL,ALLOCATABLE :: lonfi(:) |
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| 76 | REAL,ALLOCATABLE :: cufi(:) |
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| 77 | REAL,ALLOCATABLE :: cvfi(:) |
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| 78 | REAL,ALLOCATABLE :: airefi(:) |
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| 79 | |
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| 80 | IF (nlayer.NE.klev) THEN |
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| 81 | WRITE(lunout,*) 'STOP in ',trim(modname) |
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| 82 | WRITE(lunout,*) 'Problem with dimensions :' |
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| 83 | WRITE(lunout,*) 'nlayer = ',nlayer |
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| 84 | WRITE(lunout,*) 'klev = ',klev |
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| 85 | abort_message = '' |
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| 86 | CALL abort_gcm (modname,abort_message,1) |
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| 87 | ENDIF |
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| 88 | |
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| 89 | ! init regular global longitude-latitude grid points and boundaries |
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| 90 | ALLOCATE(boundslon_reg(iim,2)) |
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| 91 | ALLOCATE(boundslat_reg(jjm+1,2)) |
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| 92 | |
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| 93 | DO i=1,iim |
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| 94 | boundslon_reg(i,east)=rlonu(i) |
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| 95 | boundslon_reg(i,west)=rlonu(i+1) |
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| 96 | ENDDO |
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| 97 | |
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| 98 | boundslat_reg(1,north)= PI/2 |
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| 99 | boundslat_reg(1,south)= rlatv(1) |
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| 100 | DO j=2,jjm |
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| 101 | boundslat_reg(j,north)=rlatv(j-1) |
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| 102 | boundslat_reg(j,south)=rlatv(j) |
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| 103 | ENDDO |
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| 104 | boundslat_reg(jjm+1,north)= rlatv(jjm) |
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| 105 | boundslat_reg(jjm+1,south)= -PI/2 |
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| 106 | |
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| 107 | ! Write values in module regular_lonlat_mod |
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| 108 | CALL init_regular_lonlat(iim,jjm+1, rlonv(1:iim), rlatu, & |
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| 109 | boundslon_reg, boundslat_reg) |
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| 110 | |
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| 111 | ! Generate global arrays on full physics grid |
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| 112 | ALLOCATE(latfi(klon_glo),lonfi(klon_glo),cufi(klon_glo),cvfi(klon_glo)) |
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| 113 | ALLOCATE(airefi(klon_glo)) |
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| 114 | |
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| 115 | IF (klon_glo>1) THEN ! general case |
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| 116 | ! North pole |
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| 117 | latfi(1)=rlatu(1) |
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| 118 | lonfi(1)=0. |
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| 119 | cufi(1) = cu(1) |
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| 120 | cvfi(1) = cv(1) |
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| 121 | DO j=2,jjm |
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| 122 | DO i=1,iim |
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| 123 | latfi((j-2)*iim+1+i)= rlatu(j) |
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| 124 | lonfi((j-2)*iim+1+i)= rlonv(i) |
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| 125 | cufi((j-2)*iim+1+i) = cu((j-1)*iim+1+i) |
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| 126 | cvfi((j-2)*iim+1+i) = cv((j-1)*iim+1+i) |
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| 127 | ENDDO |
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| 128 | ENDDO |
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| 129 | ! South pole |
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| 130 | latfi(klon_glo)= rlatu(jjm+1) |
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| 131 | lonfi(klon_glo)= 0. |
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| 132 | cufi(klon_glo) = cu((iim+1)*jjm+1) |
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| 133 | cvfi(klon_glo) = cv((iim+1)*jjm-iim) |
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| 134 | |
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| 135 | ! build airefi(), mesh area on physics grid |
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| 136 | CALL gr_dyn_fi(1,iim+1,jjm+1,klon_glo,aire,airefi) |
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| 137 | ! Poles are single points on physics grid |
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| 138 | airefi(1)=sum(aire(1:iim,1)) |
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| 139 | airefi(klon_glo)=sum(aire(1:iim,jjm+1)) |
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| 140 | |
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| 141 | ! Sanity check: do total planet area match between physics and dynamics? |
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| 142 | total_area_dyn=sum(aire(1:iim,1:jjm+1)) |
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| 143 | total_area_phy=sum(airefi(1:klon_glo)) |
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| 144 | IF (total_area_dyn/=total_area_phy) THEN |
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| 145 | WRITE (lunout, *) 'iniphysiq: planet total surface discrepancy !!!' |
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| 146 | WRITE (lunout, *) ' in the dynamics total_area_dyn=', total_area_dyn |
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| 147 | WRITE (lunout, *) ' but in the physics total_area_phy=', total_area_phy |
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| 148 | IF (abs(total_area_dyn-total_area_phy)>0.00001*total_area_dyn) THEN |
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| 149 | ! stop here if the relative difference is more than 0.001% |
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| 150 | abort_message = 'planet total surface discrepancy' |
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| 151 | CALL abort_gcm(modname, abort_message, 1) |
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| 152 | ENDIF |
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| 153 | ENDIF |
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| 154 | ELSE ! klon_glo==1, running the 1D model |
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| 155 | ! just copy over input values |
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| 156 | latfi(1)=rlatu(1) |
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| 157 | lonfi(1)=rlonv(1) |
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| 158 | cufi(1)=cu(1) |
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| 159 | cvfi(1)=cv(1) |
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| 160 | airefi(1)=aire(1,1) |
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| 161 | ENDIF ! of IF (klon_glo>1) |
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| 162 | |
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| 163 | !$OMP PARALLEL |
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| 164 | ! Now generate local lon/lat/cu/cv/area arrays |
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| 165 | CALL initcomgeomphy |
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| 166 | |
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| 167 | offset = klon_mpi_begin - 1 |
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| 168 | airephy(1:klon_omp) = airefi(offset+klon_omp_begin:offset+klon_omp_end) |
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| 169 | cuphy(1:klon_omp) = cufi(offset+klon_omp_begin:offset+klon_omp_end) |
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| 170 | cvphy(1:klon_omp) = cvfi(offset+klon_omp_begin:offset+klon_omp_end) |
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| 171 | rlond(1:klon_omp) = lonfi(offset+klon_omp_begin:offset+klon_omp_end) |
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| 172 | rlatd(1:klon_omp) = latfi(offset+klon_omp_begin:offset+klon_omp_end) |
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| 173 | |
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| 174 | ! copy some fundamental parameters to physics |
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| 175 | rradius=prad |
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| 176 | rg=pg |
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| 177 | rr=pr |
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| 178 | rcpp=pcpp |
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| 179 | |
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| 180 | !$OMP END PARALLEL |
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| 181 | |
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| 182 | ! print*,'ATTENTION !!! TRAVAILLER SUR INIPHYSIQ' |
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| 183 | ! print*,'CONTROLE DES LATITUDES, LONGITUDES, PARAMETRES ...' |
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| 184 | |
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| 185 | ! Additional initializations for aquaplanets |
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| 186 | !!$OMP PARALLEL |
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| 187 | ! if (iflag_phys>=100) then |
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| 188 | ! call iniaqua(klon_omp,rlatd,rlond,iflag_phys) |
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| 189 | ! endif |
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| 190 | !!$OMP END PARALLEL |
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| 191 | |
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| 192 | END SUBROUTINE iniphysiq |
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| 193 | |
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| 194 | END MODULE iniphysiq_mod |
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