| 1 | ! |
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| 2 | ! $Header: /home/cvsroot/LMDZ4/libf/phylmd/ocean_slab_mod.F90,v 1.3 2008-02-04 16:24:28 fairhead Exp $ |
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| 3 | ! |
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| 4 | MODULE surf_heat_transp_mod |
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| 5 | |
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| 6 | IMPLICIT NONE |
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| 7 | |
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| 8 | ! Variables copied over from dyn3d dynamics: |
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| 9 | REAL,SAVE,ALLOCATABLE :: fext(:) |
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| 10 | REAL,SAVE,ALLOCATABLE :: unsairez(:) |
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| 11 | REAL,SAVE,ALLOCATABLE :: unsaire(:) |
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| 12 | REAL,SAVE,ALLOCATABLE :: cu(:) |
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| 13 | REAL,SAVE,ALLOCATABLE :: cv(:) |
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| 14 | REAL,SAVE,ALLOCATABLE :: cuvsurcv(:) |
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| 15 | REAL,SAVE,ALLOCATABLE :: cvusurcu(:) |
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| 16 | REAL,SAVE,ALLOCATABLE :: aire(:) |
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| 17 | REAL,SAVE :: apoln |
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| 18 | REAL,SAVE :: apols |
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| 19 | REAL,SAVE,ALLOCATABLE :: aireu(:) |
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| 20 | REAL,SAVE,ALLOCATABLE :: airev(:) |
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| 21 | |
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| 22 | LOGICAL,SAVE :: alpha_var |
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| 23 | LOGICAL,SAVE :: slab_upstream |
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| 24 | REAL,SAVE,ALLOCATABLE :: zmasqu(:) |
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| 25 | REAL,SAVE,ALLOCATABLE :: zmasqv(:) |
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| 26 | REAL,SAVE,ALLOCATABLE :: unsfv(:) |
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| 27 | REAL,SAVE,ALLOCATABLE :: unsev(:) |
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| 28 | REAL,SAVE,ALLOCATABLE :: unsfu(:) |
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| 29 | REAL,SAVE,ALLOCATABLE :: unseu(:) |
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| 30 | |
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| 31 | ! Routines usable only by routines within this module: |
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| 32 | PRIVATE :: gr_fi_dyn, gr_dyn_fi |
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| 33 | ! Routines from dyn3d, valid on global dynamics grid only: |
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| 34 | PRIVATE :: grad,diverg,gr_v_scal,gr_scal_v,gr_scal_u |
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| 35 | |
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| 36 | CONTAINS |
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| 37 | |
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| 38 | SUBROUTINE ini_surf_heat_transp(ip1jm,ip1jmp1,unsairez_,fext_,unsaire_,& |
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| 39 | cu_,cuvsurcv_,cv_,cvusurcu_, & |
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| 40 | aire_,apoln_,apols_, & |
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| 41 | aireu_,airev_) |
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| 42 | USE mod_grid_phy_lmdz, only: nbp_lon, nbp_lat |
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| 43 | IMPLICIT NONE |
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| 44 | ! Transfer some variables from dyn3d dynamics |
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| 45 | INTEGER,INTENT(IN) :: ip1jm |
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| 46 | INTEGER,INTENT(IN) :: ip1jmp1 |
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| 47 | REAL,INTENT(IN) :: unsairez_(ip1jm) |
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| 48 | REAL,INTENT(IN) :: fext_(ip1jm) |
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| 49 | REAL,INTENT(IN) :: unsaire_(ip1jmp1) |
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| 50 | REAL,INTENT(IN) :: cu_(ip1jmp1) |
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| 51 | REAL,INTENT(IN) :: cuvsurcv_(ip1jm) |
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| 52 | REAL,INTENT(IN) :: cv_(ip1jm) |
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| 53 | REAL,INTENT(IN) :: cvusurcu_(ip1jmp1) |
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| 54 | REAL,INTENT(IN) :: aire_(ip1jmp1) |
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| 55 | REAL,INTENT(IN) :: apoln_ |
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| 56 | REAL,INTENT(IN) :: apols_ |
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| 57 | REAL,INTENT(IN) :: aireu_(ip1jmp1) |
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| 58 | REAL,INTENT(IN) :: airev_(ip1jm) |
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| 59 | |
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| 60 | ! Sanity check |
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| 61 | if ((ip1jm.ne.((nbp_lon+1)*(nbp_lat-1))).or. & |
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| 62 | (ip1jmp1.ne.((nbp_lon+1)*nbp_lat))) then |
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| 63 | write(*,*) "ini_surf_heat_transp Error: wrong array sizes" |
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| 64 | stop |
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| 65 | endif |
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| 66 | |
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| 67 | allocate(unsairez(ip1jm)) |
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| 68 | unsairez(:)=unsairez_(:) |
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| 69 | allocate(fext(ip1jm)) |
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| 70 | fext(:)=fext_(:) |
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| 71 | allocate(unsaire(ip1jmp1)) |
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| 72 | unsaire(:)=unsaire_(:) |
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| 73 | allocate(cu(ip1jmp1)) |
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| 74 | cu(:)=cu_(:) |
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| 75 | allocate(cuvsurcv(ip1jm)) |
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| 76 | cuvsurcv(:)=cuvsurcv_(:) |
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| 77 | allocate(cv(ip1jm)) |
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| 78 | cv(:)=cv_(:) |
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| 79 | allocate(cvusurcu(ip1jmp1)) |
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| 80 | cvusurcu(:)=cvusurcu_(:) |
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| 81 | allocate(aire(ip1jmp1)) |
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| 82 | aire(:)=aire_(:) |
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| 83 | apoln=apoln_ |
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| 84 | apols=apols_ |
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| 85 | allocate(aireu(ip1jmp1)) |
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| 86 | aireu(:)=aireu_(:) |
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| 87 | allocate(airev(ip1jm)) |
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| 88 | airev(:)=airev_(:) |
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| 89 | |
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| 90 | END SUBROUTINE ini_surf_heat_transp |
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| 91 | |
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| 92 | SUBROUTINE ini_surf_heat_transp_mod |
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| 93 | USE mod_grid_phy_lmdz, only: nbp_lon, nbp_lat |
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| 94 | IMPLICIT NONE |
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| 95 | INTEGER :: ip1jm, ip1jmp1 |
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| 96 | |
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| 97 | ip1jm=(nbp_lon+1)*(nbp_lat-1) |
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| 98 | ip1jmp1=(nbp_lon+1)*nbp_lat |
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| 99 | |
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| 100 | allocate(zmasqu(ip1jmp1)) |
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| 101 | allocate(zmasqv(ip1jm)) |
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| 102 | allocate(unsfv(ip1jm)) |
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| 103 | allocate(unsev(ip1jm)) |
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| 104 | allocate(unsfu(ip1jmp1)) |
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| 105 | allocate(unseu(ip1jmp1)) |
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| 106 | |
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| 107 | END SUBROUTINE ini_surf_heat_transp_mod |
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| 108 | |
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| 109 | SUBROUTINE divgrad_phy(ngrid,nlevs,temp,delta) |
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| 110 | |
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| 111 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
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| 112 | IMPLICIT NONE |
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| 113 | |
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| 114 | INTEGER,INTENT(IN) :: ngrid, nlevs |
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| 115 | REAL,INTENT(IN) :: temp(ngrid,nlevs) |
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| 116 | REAL,INTENT(OUT) :: delta(ngrid,nlevs) |
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| 117 | REAL delta_2d((nbp_lon+1)*nbp_lat,nlevs) |
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| 118 | INTEGER :: ll |
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| 119 | REAL ghx((nbp_lon+1)*nbp_lat,nlevs) |
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| 120 | REAL ghy((nbp_lon+1)*(nbp_lat-1),nlevs) |
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| 121 | INTEGER :: iip1,jjp1 |
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| 122 | |
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| 123 | iip1=nbp_lon+1 |
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| 124 | jjp1=nbp_lat |
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| 125 | |
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| 126 | CALL gr_fi_dyn(nlevs,ngrid,iip1,jjp1,temp,delta_2d) |
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| 127 | CALL grad(nlevs,delta_2d,ghx,ghy) |
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| 128 | DO ll=1,nlevs |
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| 129 | ghx(:,ll)=ghx(:,ll)*zmasqu |
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| 130 | ! pas de diffusion zonale |
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| 131 | ! ghx(:,ll)=0. |
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| 132 | ghy(:,ll)=ghy(:,ll)*zmasqv |
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| 133 | END DO |
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| 134 | CALL diverg(nlevs,ghx,ghy,delta_2d) |
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| 135 | CALL gr_dyn_fi(nlevs,iip1,jjp1,ngrid,delta_2d,delta) |
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| 136 | |
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| 137 | |
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| 138 | END SUBROUTINE divgrad_phy |
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| 139 | |
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| 140 | |
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| 141 | |
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| 142 | SUBROUTINE init_masquv(ngrid,zmasq) |
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| 143 | |
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| 144 | USE mod_grid_phy_lmdz, only: nbp_lon, nbp_lat |
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| 145 | IMPLICIT NONE |
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| 146 | |
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| 147 | |
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| 148 | INTEGER,INTENT(IN) :: ngrid |
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| 149 | REAL zmasq(ngrid) |
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| 150 | REAL zmasq_2d((nbp_lon+1)*nbp_lat) |
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| 151 | REAL ff((nbp_lon+1)*(nbp_lat-1)) |
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| 152 | REAL eps |
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| 153 | INTEGER i |
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| 154 | INTEGER :: iim,iip1,jjp1,ip1jm,ip1jmp1 |
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| 155 | |
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| 156 | iim=nbp_lon |
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| 157 | iip1=nbp_lon+1 |
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| 158 | jjp1=nbp_lat |
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| 159 | ip1jm=(nbp_lon+1)*(nbp_lat-1) |
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| 160 | ip1jmp1=(nbp_lon+1)*nbp_lat |
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| 161 | |
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| 162 | ! Masques u,v |
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| 163 | zmasqu=1. |
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| 164 | zmasqv=1. |
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| 165 | |
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| 166 | CALL gr_fi_dyn(1,ngrid,iip1,jjp1,zmasq,zmasq_2d) |
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| 167 | |
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| 168 | DO i=1,ip1jmp1-1 |
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| 169 | IF (zmasq_2d(i).GT.1e-5 .OR. zmasq_2d(i+1).GT.1e-5) THEN |
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| 170 | zmasqu(i)=0. |
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| 171 | ENDIF |
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| 172 | END DO |
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| 173 | DO i=iip1,ip1jmp1,iip1 |
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| 174 | zmasqu(i)=zmasqu(i-iim) |
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| 175 | END DO |
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| 176 | DO i=1,ip1jm |
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| 177 | IF (zmasq_2d(i).GT.1e-5 .OR. zmasq_2d(i+iip1).GT.1e-5) THEN |
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| 178 | zmasqv(i)=0. |
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| 179 | END IF |
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| 180 | END DO |
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| 181 | |
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| 182 | |
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| 183 | ! Coriolis (pour Ekman transp.) |
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| 184 | eps=1e-5 |
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| 185 | ! CALL getin('slab_eps',eps) |
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| 186 | ! print *,'epsilon=',eps |
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| 187 | ff=fext*unsairez |
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| 188 | DO i=1,ip1jm |
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| 189 | unsev(i)=eps/(ff(i)*ff(i)+eps**2) |
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| 190 | unsfv(i)=ff(i)/(ff(i)*ff(i)+eps**2) |
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| 191 | ENDDO |
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| 192 | CALL gr_v_scal(1,unsfv,unsfu) |
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| 193 | CALL gr_v_scal(1,unsev,unseu) |
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| 194 | ! Alpha variable? |
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| 195 | ! alpha_var=.FALSE. |
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| 196 | ! CALL getin('slab_alphav',alpha_var) |
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| 197 | |
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| 198 | |
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| 199 | |
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| 200 | END SUBROUTINE init_masquv |
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| 201 | |
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| 202 | |
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| 203 | |
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| 204 | SUBROUTINE slab_ekman2(ngrid,tx_phy,ty_phy,ts_phy,dt_phy) |
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| 205 | |
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| 206 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
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| 207 | USE slab_ice_h, ONLY: noceanmx |
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| 208 | |
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| 209 | IMPLICIT NONE |
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| 210 | |
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| 211 | INTEGER,INTENT(IN) :: ngrid |
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| 212 | INTEGER ij |
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| 213 | REAL txv((nbp_lon+1)*(nbp_lat-1)),fluxm((nbp_lon+1)*(nbp_lat-1)) |
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| 214 | REAL tyv((nbp_lon+1)*(nbp_lat-1)) |
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| 215 | REAL fluxtm((nbp_lon+1)*(nbp_lat-1),noceanmx) |
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| 216 | REAL fluxtz((nbp_lon+1)*nbp_lat,noceanmx) |
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| 217 | REAL tyu((nbp_lon+1)*nbp_lat),txu((nbp_lon+1)*nbp_lat) |
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| 218 | REAL fluxz((nbp_lon+1)*nbp_lat),fluxv((nbp_lon+1)*nbp_lat) |
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| 219 | REAL dt((nbp_lon+1)*nbp_lat,noceanmx),ts((nbp_lon+1)*nbp_lat,noceanmx) |
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| 220 | REAL tx_phy(ngrid),ty_phy(ngrid) |
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| 221 | REAL dt_phy(ngrid,noceanmx),ts_phy(ngrid,noceanmx) |
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| 222 | |
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| 223 | INTEGER iim,iip1,iip2,jjp1,ip1jm,ip1jmi1,ip1jmp1 |
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| 224 | |
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| 225 | iim=nbp_lon |
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| 226 | iip1=nbp_lon+1 |
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| 227 | iip2=nbp_lon+2 |
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| 228 | jjp1=nbp_lat |
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| 229 | ip1jm=(nbp_lon+1)*(nbp_lat-1) ! = iip1*jjm |
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| 230 | ip1jmi1=(nbp_lon+1)*(nbp_lat-1)-(nbp_lon+1) ! = ip1jm - iip1 |
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| 231 | ip1jmp1=(nbp_lon+1)*nbp_lat ! = iip1*jjp1 |
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| 232 | |
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| 233 | ! Convert taux,y to 2D scalar grid |
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| 234 | ! north and south poles tx,ty no meaning |
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| 235 | tx_phy(1)=0. |
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| 236 | tx_phy(ngrid)=0. |
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| 237 | ty_phy(1)=0. |
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| 238 | ty_phy(ngrid)=0. |
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| 239 | CALL gr_fi_dyn(1,ngrid,iip1,jjp1,tx_phy,txu) |
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| 240 | CALL gr_fi_dyn(1,ngrid,iip1,jjp1,ty_phy,tyu) |
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| 241 | |
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| 242 | ! Divide taux,y by f or eps, and convert to 2D u,v grids |
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| 243 | ! (Arakawa C grid) |
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| 244 | CALL gr_scal_v(1,txu,txv) ! wind stress at v points |
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| 245 | CALL gr_scal_v(1,tyu,tyv) |
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| 246 | fluxm=tyv*unsev-txv*unsfv |
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| 247 | ! fluxm=-txv*unsfv |
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| 248 | ! Zonal flux |
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| 249 | CALL gr_scal_u(1,txu,txu) ! wind stress at u points |
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| 250 | CALL gr_scal_u(1,tyu,tyu) |
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| 251 | fluxz=tyu*unsfu+txu*unseu |
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| 252 | ! fluxz=tyu*unsfu |
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| 253 | |
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| 254 | ! Convert temperature to 2D grid |
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| 255 | CALL gr_fi_dyn(2,ngrid,iip1,jjp1,ts_phy,ts) |
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| 256 | |
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| 257 | ! Flux de masse |
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| 258 | fluxm=fluxm*cv*cuvsurcv*zmasqv |
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| 259 | fluxz=fluxz*cu*cvusurcu*zmasqu |
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| 260 | ! Flux de masse vertical |
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| 261 | DO ij=iip2,ip1jm |
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| 262 | fluxv(ij)=fluxz(ij)-fluxz(ij-1)-fluxm(ij)+fluxm(ij-iip1) |
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| 263 | ENDDO |
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| 264 | DO ij=iip1,ip1jmi1,iip1 |
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| 265 | fluxv(ij+1)=fluxv(ij+iip1) |
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| 266 | END DO |
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| 267 | ! Poles |
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| 268 | fluxv(1)=-SUM(fluxm(1:iim)) |
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| 269 | fluxv(ip1jmp1)=SUM(fluxm(ip1jm-iim:ip1jm-1)) |
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| 270 | fluxv=fluxv |
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| 271 | |
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| 272 | ! Meridional heat fluxes |
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| 273 | DO ij=1,ip1jm |
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| 274 | ! centered scheme |
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| 275 | fluxtm(ij,1)=fluxm(ij)*(ts(ij+iip1,1)+ts(ij,1))/2. |
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| 276 | fluxtm(ij,2)=-fluxm(ij)*(ts(ij+iip1,2)+ts(ij,2))/2. |
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| 277 | END DO |
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| 278 | |
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| 279 | ! Zonal heat fluxes |
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| 280 | ! Schema upstream |
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| 281 | fluxtz(1:iip1,:)=0 ! no zonal heat flux at north pole |
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| 282 | DO ij=iip2,ip1jm |
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| 283 | IF (fluxz(ij).GE.0.) THEN |
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| 284 | fluxtz(ij,1)=fluxz(ij)*ts(ij,1) |
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| 285 | fluxtz(ij,2)=-fluxz(ij)*ts(ij+1,2) |
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| 286 | ELSE |
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| 287 | fluxtz(ij,1)=fluxz(ij)*ts(ij+1,1) |
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| 288 | fluxtz(ij,2)=-fluxz(ij)*ts(ij,2) |
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| 289 | ENDIF |
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| 290 | END DO |
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| 291 | DO ij=iip1*2,ip1jmp1,iip1 |
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| 292 | fluxtz(ij,:)=fluxtz(ij-iim,:) |
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| 293 | END DO |
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| 294 | |
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| 295 | ! Calcul de dT |
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| 296 | DO ij=iip2,ip1jm |
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| 297 | dt(ij,:)=fluxtz(ij-1,:)-fluxtz(ij,:) & |
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| 298 | +fluxtm(ij,:)-fluxtm(ij-iip1,:) |
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| 299 | IF (fluxv(ij).GT.0.) THEN |
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| 300 | dt(ij,1)=dt(ij,1)+fluxv(ij)*ts(ij,2) |
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| 301 | dt(ij,2)=dt(ij,2)-fluxv(ij)*ts(ij,2) |
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| 302 | ELSE |
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| 303 | dt(ij,1)=dt(ij,1)+fluxv(ij)*ts(ij,1) |
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| 304 | dt(ij,2)=dt(ij,2)-fluxv(ij)*ts(ij,1) |
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| 305 | ENDIF |
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| 306 | dt(ij,:)=dt(ij,:)/aire(ij) |
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| 307 | END DO |
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| 308 | DO ij=iip1,ip1jmi1,iip1 |
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| 309 | dt(ij+1,:)=dt(ij+iip1,:) |
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| 310 | END DO |
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| 311 | ! Pôles |
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| 312 | dt(1,:)=SUM(fluxtm(1:iim,:),dim=1) |
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| 313 | IF (fluxv(1).GT.0.) THEN |
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| 314 | dt(1,1)=dt(1,1)+fluxv(1)*ts(1,2) |
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| 315 | dt(1,2)=dt(1,2)-fluxv(1)*ts(1,2) |
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| 316 | ELSE |
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| 317 | dt(1,1)=dt(1,1)+fluxv(1)*ts(1,1) |
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| 318 | dt(1,2)=dt(1,2)-fluxv(1)*ts(1,1) |
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| 319 | ENDIF |
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| 320 | dt(1,:)=dt(1,:)/apoln |
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| 321 | dt(ip1jmp1,:)=-SUM(fluxtm(ip1jm-iim:ip1jm-1,:),dim=1) |
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| 322 | IF (fluxv(ip1jmp1).GT.0.) THEN |
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| 323 | dt(ip1jmp1,1)=dt(ip1jmp1,1)+fluxv(ip1jmp1)*ts(ip1jmp1,2) |
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| 324 | dt(ip1jmp1,2)=dt(ip1jmp1,2)-fluxv(ip1jmp1)*ts(ip1jmp1,2) |
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| 325 | ELSE |
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| 326 | dt(ip1jmp1,1)=dt(ip1jmp1,1)+fluxv(ip1jmp1)*ts(ip1jmp1,1) |
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| 327 | dt(ip1jmp1,2)=dt(ip1jmp1,2)-fluxv(ip1jmp1)*ts(ip1jmp1,1) |
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| 328 | ENDIF |
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| 329 | dt(ip1jmp1,:)=dt(ip1jmp1,:)/apols |
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| 330 | dt(2:iip1,1)=dt(1,1) |
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| 331 | dt(2:iip1,2)=dt(1,2) |
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| 332 | dt(ip1jm+1:ip1jmp1,1)=dt(ip1jmp1,1) |
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| 333 | dt(ip1jm+1:ip1jmp1,2)=dt(ip1jmp1,2) |
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| 334 | |
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| 335 | ! Retour grille physique |
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| 336 | CALL gr_dyn_fi(2,iip1,jjp1,ngrid,dt,dt_phy) |
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| 337 | |
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| 338 | |
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| 339 | END SUBROUTINE slab_ekman2 |
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| 340 | |
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| 341 | !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 342 | |
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| 343 | SUBROUTINE gr_fi_dyn(nfield,ngrid,im,jm,pfi,pdyn) |
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| 344 | ! Transfer a variable on global "physics" grid to global "dynamics" grid |
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| 345 | IMPLICIT NONE |
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| 346 | |
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| 347 | INTEGER,INTENT(IN) :: im,jm,ngrid,nfield |
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| 348 | REAL,INTENT(IN) :: pfi(ngrid,nfield) |
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| 349 | REAL,INTENT(OUT) :: pdyn(im,jm,nfield) |
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| 350 | |
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| 351 | INTEGER :: i,j,ifield,ig |
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| 352 | |
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| 353 | DO ifield=1,nfield |
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| 354 | ! Handle poles |
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| 355 | DO i=1,im |
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| 356 | pdyn(i,1,ifield)=pfi(1,ifield) |
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| 357 | pdyn(i,jm,ifield)=pfi(ngrid,ifield) |
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| 358 | ENDDO |
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| 359 | ! Other points |
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| 360 | DO j=2,jm-1 |
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| 361 | ig=2+(j-2)*(im-1) |
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| 362 | CALL SCOPY(im-1,pfi(ig,ifield),1,pdyn(1,j,ifield),1) |
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| 363 | pdyn(im,j,ifield)=pdyn(1,j,ifield) |
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| 364 | ENDDO |
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| 365 | ENDDO ! of DO ifield=1,nfield |
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| 366 | |
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| 367 | END SUBROUTINE gr_fi_dyn |
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| 368 | |
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| 369 | |
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| 370 | |
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| 371 | SUBROUTINE gr_dyn_fi(nfield,im,jm,ngrid,pdyn,pfi) |
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| 372 | ! Transfer a variable on global "dynamics" grid to global "physics" grid |
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| 373 | IMPLICIT NONE |
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| 374 | |
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| 375 | INTEGER,INTENT(IN) :: im,jm,ngrid,nfield |
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| 376 | REAL,INTENT(IN) :: pdyn(im,jm,nfield) |
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| 377 | REAL,INTENT(OUT) :: pfi(ngrid,nfield) |
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| 378 | |
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| 379 | INTEGER j,ifield,ig |
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| 380 | |
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| 381 | ! Sanity check: |
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| 382 | IF(ngrid.NE.2+(jm-2)*(im-1)) THEN |
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| 383 | WRITE(*,*) "gr_dyn_fi error, wrong sizes" |
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| 384 | STOP |
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| 385 | ENDIF |
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| 386 | |
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| 387 | ! Handle poles |
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| 388 | CALL SCOPY(nfield,pdyn,im*jm,pfi,ngrid) |
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| 389 | CALL SCOPY(nfield,pdyn(1,jm,1),im*jm,pfi(ngrid,1),ngrid) |
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| 390 | ! Other points |
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| 391 | DO ifield=1,nfield |
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| 392 | DO j=2,jm-1 |
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| 393 | ig=2+(j-2)*(im-1) |
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| 394 | CALL SCOPY(im-1,pdyn(1,j,ifield),1,pfi(ig,ifield),1) |
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| 395 | ENDDO |
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| 396 | ENDDO |
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| 397 | |
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| 398 | END SUBROUTINE gr_dyn_fi |
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| 399 | |
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| 400 | |
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| 401 | |
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| 402 | SUBROUTINE grad(klevel,pg,pgx,pgy) |
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| 403 | ! compute the covariant components x,y of the gradient of pg |
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| 404 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
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| 405 | IMPLICIT NONE |
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| 406 | |
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| 407 | INTEGER,INTENT(IN) :: klevel |
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| 408 | REAL,INTENT(IN) :: pg((nbp_lon+1)*nbp_lat,klevel) |
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| 409 | REAL,INTENT(OUT) :: pgx((nbp_lon+1)*nbp_lat,klevel) |
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| 410 | REAL,INTENT(OUT) :: pgy((nbp_lon+1)*(nbp_lat-1),klevel) |
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| 411 | |
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| 412 | INTEGER :: l,ij |
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| 413 | INTEGER :: iim,iip1,ip1jm,ip1jmp1 |
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| 414 | |
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| 415 | iim=nbp_lon |
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| 416 | iip1=nbp_lon+1 |
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| 417 | ip1jm=(nbp_lon+1)*(nbp_lat-1) ! = iip1*jjm |
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| 418 | ip1jmp1=(nbp_lon+1)*nbp_lat ! = iip1*jjp1 |
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| 419 | |
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| 420 | DO l=1,klevel |
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| 421 | DO ij=1,ip1jmp1-1 |
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| 422 | pgx(ij,l)=pg(ij+1,l)-pg(ij,l) |
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| 423 | ENDDO |
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| 424 | ! correction for pgx(ip1,j,l) ... |
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| 425 | ! ... pgx(iip1,j,l)=pgx(1,j,l) ... |
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| 426 | DO ij=iip1,ip1jmp1,iip1 |
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| 427 | pgx(ij,l)=pgx(ij-iim,l) |
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| 428 | ENDDO |
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| 429 | DO ij=1,ip1jm |
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| 430 | pgy(ij,l)=pg(ij,l)-pg(ij+iip1,l) |
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| 431 | ENDDO |
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| 432 | ENDDO |
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| 433 | |
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| 434 | END SUBROUTINE grad |
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| 435 | |
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| 436 | |
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| 437 | |
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| 438 | SUBROUTINE diverg(klevel,x,y,div) |
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| 439 | ! compute the divergence of a vector field of components |
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| 440 | ! x,y. y and y being covriant components |
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| 441 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
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| 442 | IMPLICIT NONE |
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| 443 | |
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| 444 | INTEGER,INTENT(IN) :: klevel |
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| 445 | REAL,INTENT(IN) :: x((nbp_lon+1)*nbp_lat,klevel) |
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| 446 | REAL,INTENT(IN) :: y((nbp_lon+1)*(nbp_lat-1),klevel) |
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| 447 | REAL,INTENT(OUT) :: div((nbp_lon+1)*nbp_lat,klevel) |
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| 448 | |
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| 449 | INTEGER :: l,ij |
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| 450 | INTEGER :: iim,iip1,iip2,ip1jm,ip1jmp1,ip1jmi1 |
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| 451 | |
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| 452 | REAL :: aiy1(nbp_lon+1),aiy2(nbp_lon+1) |
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| 453 | REAL :: sumypn,sumyps |
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| 454 | REAL,EXTERNAL :: SSUM |
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| 455 | |
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| 456 | iim=nbp_lon |
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| 457 | iip1=nbp_lon+1 |
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| 458 | iip2=nbp_lon+2 |
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| 459 | ip1jm=(nbp_lon+1)*(nbp_lat-1) ! = iip1*jjm |
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| 460 | ip1jmp1=(nbp_lon+1)*nbp_lat ! = iip1*jjp1 |
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| 461 | ip1jmi1=(nbp_lon+1)*(nbp_lat-1)-(nbp_lon+1) ! = ip1jm - iip1 |
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| 462 | |
|---|
| 463 | DO l=1,klevel |
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| 464 | DO ij=iip2,ip1jm-1 |
|---|
| 465 | div(ij+1,l)= & |
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| 466 | cvusurcu(ij+1)*x(ij+1,l)-cvusurcu(ij)*x(ij,l)+ & |
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| 467 | cuvsurcv(ij-iim)*y(ij-iim,l)-cuvsurcv(ij+1)*y(ij+1,l) |
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| 468 | ENDDO |
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| 469 | ! correction for div(1,j,l) ... |
|---|
| 470 | ! ... div(1,j,l)= div(iip1,j,l) ... |
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| 471 | DO ij=iip2,ip1jm,iip1 |
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| 472 | div(ij,l)=div(ij+iim,l) |
|---|
| 473 | ENDDO |
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| 474 | ! at the poles |
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| 475 | DO ij=1,iim |
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| 476 | aiy1(ij)=cuvsurcv(ij)*y(ij,l) |
|---|
| 477 | aiy2(ij)=cuvsurcv(ij+ip1jmi1)*y(ij+ip1jmi1,l) |
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| 478 | ENDDO |
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| 479 | sumypn=SSUM(iim,aiy1,1)/apoln |
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| 480 | sumyps=SSUM(iim,aiy2,1)/apols |
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| 481 | DO ij=1,iip1 |
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| 482 | div(ij,l)=-sumypn |
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| 483 | div(ij+ip1jm,l)=sumyps |
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| 484 | ENDDO |
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| 485 | ENDDO ! of DO l=1,klevel |
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| 486 | |
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| 487 | !!! CALL filtreg( div, jjp1, klevel, 2, 2, .TRUE., 1 ) |
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| 488 | |
|---|
| 489 | DO l=1,klevel |
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| 490 | DO ij=iip2,ip1jm |
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| 491 | div(ij,l)=div(ij,l)*unsaire(ij) |
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| 492 | ENDDO |
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| 493 | ENDDO |
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| 494 | |
|---|
| 495 | END SUBROUTINE diverg |
|---|
| 496 | |
|---|
| 497 | |
|---|
| 498 | |
|---|
| 499 | SUBROUTINE gr_v_scal(nx,x_v,x_scal) |
|---|
| 500 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
|---|
| 501 | IMPLICIT NONE |
|---|
| 502 | |
|---|
| 503 | INTEGER,INTENT(IN) :: nx |
|---|
| 504 | REAL,INTENT(IN) :: x_v((nbp_lon+1)*(nbp_lat-1),nx) |
|---|
| 505 | REAL,INTENT(OUT) :: x_scal((nbp_lon+1)*nbp_lat,nx) |
|---|
| 506 | |
|---|
| 507 | INTEGER :: l,ij |
|---|
| 508 | INTEGER :: iip1,iip2,ip1jm,ip1jmp1 |
|---|
| 509 | |
|---|
| 510 | iip1=nbp_lon+1 |
|---|
| 511 | iip2=nbp_lon+2 |
|---|
| 512 | ip1jm=(nbp_lon+1)*(nbp_lat-1) ! = iip1*jjm |
|---|
| 513 | ip1jmp1=(nbp_lon+1)*nbp_lat ! = iip1*jjp1 |
|---|
| 514 | |
|---|
| 515 | DO l=1,nx |
|---|
| 516 | DO ij=iip2,ip1jm |
|---|
| 517 | x_scal(ij,l)= & |
|---|
| 518 | (airev(ij-iip1)*x_v(ij-iip1,l)+airev(ij)*x_v(ij,l)) & |
|---|
| 519 | /(airev(ij-iip1)+airev(ij)) |
|---|
| 520 | ENDDO |
|---|
| 521 | DO ij=1,iip1 |
|---|
| 522 | x_scal(ij,l)=0. |
|---|
| 523 | ENDDO |
|---|
| 524 | DO ij=ip1jm+1,ip1jmp1 |
|---|
| 525 | x_scal(ij,l)=0. |
|---|
| 526 | ENDDO |
|---|
| 527 | ENDDO |
|---|
| 528 | |
|---|
| 529 | END SUBROUTINE gr_v_scal |
|---|
| 530 | |
|---|
| 531 | SUBROUTINE gr_scal_v(nx,x_scal,x_v) |
|---|
| 532 | ! convert values from scalar points to v points on C-grid |
|---|
| 533 | ! used to compute wind stress at V points |
|---|
| 534 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
|---|
| 535 | IMPLICIT NONE |
|---|
| 536 | |
|---|
| 537 | INTEGER,INTENT(IN) :: nx ! number of levels or fields |
|---|
| 538 | REAL,INTENT(OUT) :: x_v((nbp_lon+1)*(nbp_lat-1),nx) |
|---|
| 539 | REAL,INTENT(IN) :: x_scal((nbp_lon+1)*nbp_lat,nx) |
|---|
| 540 | |
|---|
| 541 | INTEGER :: l,ij |
|---|
| 542 | INTEGER :: iip1,ip1jm |
|---|
| 543 | |
|---|
| 544 | iip1=nbp_lon+1 |
|---|
| 545 | ip1jm=(nbp_lon+1)*(nbp_lat-1) ! = iip1*jjm |
|---|
| 546 | |
|---|
| 547 | DO l=1,nx |
|---|
| 548 | DO ij=1,ip1jm |
|---|
| 549 | x_v(ij,l)= & |
|---|
| 550 | (cu(ij)*cvusurcu(ij)*x_scal(ij,l)+ & |
|---|
| 551 | cu(ij+iip1)*cvusurcu(ij+iip1)*x_scal(ij+iip1,l)) & |
|---|
| 552 | /(cu(ij)*cvusurcu(ij)+cu(ij+iip1)*cvusurcu(ij+iip1)) |
|---|
| 553 | ENDDO |
|---|
| 554 | ENDDO |
|---|
| 555 | |
|---|
| 556 | END SUBROUTINE gr_scal_v |
|---|
| 557 | |
|---|
| 558 | SUBROUTINE gr_scal_u(nx,x_scal,x_u) |
|---|
| 559 | ! convert values from scalar points to U points on C-grid |
|---|
| 560 | ! used to compute wind stress at U points |
|---|
| 561 | USE mod_grid_phy_lmdz, ONLY: nbp_lon, nbp_lat |
|---|
| 562 | IMPLICIT NONE |
|---|
| 563 | |
|---|
| 564 | INTEGER,INTENT(IN) :: nx |
|---|
| 565 | REAL,INTENT(OUT) :: x_u((nbp_lon+1)*nbp_lat,nx) |
|---|
| 566 | REAL,INTENT(IN) :: x_scal((nbp_lon+1)*nbp_lat,nx) |
|---|
| 567 | |
|---|
| 568 | INTEGER :: l,ij |
|---|
| 569 | INTEGER :: iip1,jjp1,ip1jmp1 |
|---|
| 570 | |
|---|
| 571 | iip1=nbp_lon+1 |
|---|
| 572 | jjp1=nbp_lat |
|---|
| 573 | ip1jmp1=(nbp_lon+1)*nbp_lat ! = iip1*jjp1 |
|---|
| 574 | |
|---|
| 575 | DO l=1,nx |
|---|
| 576 | DO ij=1,ip1jmp1-1 |
|---|
| 577 | x_u(ij,l)= & |
|---|
| 578 | (aire(ij)*x_scal(ij,l)+aire(ij+1)*x_scal(ij+1,l)) & |
|---|
| 579 | /(aire(ij)+aire(ij+1)) |
|---|
| 580 | ENDDO |
|---|
| 581 | ENDDO |
|---|
| 582 | |
|---|
| 583 | CALL SCOPY(nx*jjp1,x_u(1,1),iip1,x_u(iip1,1),iip1) |
|---|
| 584 | |
|---|
| 585 | END SUBROUTINE gr_scal_u |
|---|
| 586 | |
|---|
| 587 | END MODULE surf_heat_transp_mod |
|---|
| 588 | |
|---|
| 589 | |
|---|
| 590 | |
|---|
