[3331] | 1 | ! |
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| 2 | MODULE coef_diff_turb_mod |
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| 3 | ! |
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| 4 | ! This module contains some procedures for calculation of the coefficients of the |
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| 5 | ! turbulent diffusion in the atmosphere and coefficients for turbulent diffusion |
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| 6 | ! at surface(cdrag) |
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| 7 | ! |
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| 8 | IMPLICIT NONE |
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| 9 | |
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| 10 | CONTAINS |
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| 11 | ! |
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| 12 | !**************************************************************************************** |
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| 13 | ! |
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| 14 | SUBROUTINE coef_diff_turb(dtime, nsrf, knon, ni, & |
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| 15 | ypaprs, ypplay, yu, yv, yq, yt, yts, yqsurf, ycdragm, & |
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| 16 | ycoefm, ycoefh ,yq2) |
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| 17 | |
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| 18 | USE dimphy |
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| 19 | USE indice_sol_mod |
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| 20 | USE print_control_mod, ONLY: prt_level, lunout |
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| 21 | ! |
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| 22 | ! Calculate coefficients(ycoefm, ycoefh) for turbulent diffusion in the |
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| 23 | ! atmosphere |
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| 24 | ! NB! No values are calculated between surface and the first model layer. |
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| 25 | ! ycoefm(:,1) and ycoefh(:,1) are not valid !!! |
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| 26 | ! |
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| 27 | ! |
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| 28 | ! Input arguments |
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| 29 | !**************************************************************************************** |
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| 30 | REAL, INTENT(IN) :: dtime |
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| 31 | INTEGER, INTENT(IN) :: nsrf, knon |
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| 32 | INTEGER, DIMENSION(klon), INTENT(IN) :: ni |
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| 33 | REAL, DIMENSION(klon,klev+1), INTENT(IN) :: ypaprs |
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| 34 | REAL, DIMENSION(klon,klev), INTENT(IN) :: ypplay |
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| 35 | REAL, DIMENSION(klon,klev), INTENT(IN) :: yu, yv |
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| 36 | REAL, DIMENSION(klon,klev), INTENT(IN) :: yq, yt |
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| 37 | REAL, DIMENSION(klon), INTENT(IN) :: yts, yqsurf |
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| 38 | REAL, DIMENSION(klon), INTENT(IN) :: ycdragm |
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| 39 | |
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| 40 | ! InOutput arguments |
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| 41 | !**************************************************************************************** |
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| 42 | REAL, DIMENSION(klon,klev+1), INTENT(INOUT):: yq2 |
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| 43 | |
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| 44 | ! Output arguments |
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| 45 | !**************************************************************************************** |
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| 46 | REAL, DIMENSION(klon,klev), INTENT(OUT) :: ycoefh |
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| 47 | REAL, DIMENSION(klon,klev), INTENT(OUT) :: ycoefm |
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| 48 | |
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| 49 | ! Other local variables |
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| 50 | !**************************************************************************************** |
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| 51 | INTEGER :: k, i, j |
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| 52 | REAL, DIMENSION(klon,klev) :: ycoefm0, ycoefh0, yzlay, yteta |
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| 53 | REAL, DIMENSION(klon,klev+1) :: yzlev, q2diag, ykmm, ykmn, ykmq |
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| 54 | REAL, DIMENSION(klon) :: yustar |
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| 55 | |
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| 56 | ! Include |
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| 57 | !**************************************************************************************** |
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| 58 | INCLUDE "clesphys.h" |
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| 59 | INCLUDE "compbl.h" |
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| 60 | INCLUDE "YOETHF.h" |
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| 61 | INCLUDE "YOMCST.h" |
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| 62 | |
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| 63 | |
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| 64 | !**************************************************************************************** |
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| 65 | ! Calcul de coefficients de diffusion turbulent de l'atmosphere : |
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| 66 | ! ycoefm(:,2:klev), ycoefh(:,2:klev) |
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| 67 | ! |
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| 68 | !**************************************************************************************** |
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| 69 | |
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| 70 | CALL coefkz(nsrf, knon, ypaprs, ypplay, & |
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| 71 | ksta, ksta_ter, & |
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| 72 | yts, yu, yv, yt, yq, & |
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| 73 | yqsurf, & |
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| 74 | ycoefm, ycoefh) |
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| 75 | |
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| 76 | !**************************************************************************************** |
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| 77 | ! Eventuelle recalcule des coeffeicients de diffusion turbulent de l'atmosphere : |
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| 78 | ! ycoefm(:,2:klev), ycoefh(:,2:klev) |
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| 79 | ! |
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| 80 | !**************************************************************************************** |
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| 81 | |
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| 82 | IF (iflag_pbl.EQ.1) THEN |
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| 83 | CALL coefkz2(nsrf, knon, ypaprs, ypplay, yt, & |
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| 84 | ycoefm0, ycoefh0) |
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| 85 | |
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| 86 | DO k = 2, klev |
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| 87 | DO i = 1, knon |
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| 88 | ycoefm(i,k) = MAX(ycoefm(i,k),ycoefm0(i,k)) |
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| 89 | ycoefh(i,k) = MAX(ycoefh(i,k),ycoefh0(i,k)) |
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| 90 | ENDDO |
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| 91 | ENDDO |
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| 92 | ENDIF |
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| 93 | |
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| 94 | |
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| 95 | !**************************************************************************************** |
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| 96 | ! Calcul d'une diffusion minimale pour les conditions tres stables |
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| 97 | ! |
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| 98 | !**************************************************************************************** |
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| 99 | IF (ok_kzmin) THEN |
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| 100 | CALL coefkzmin(knon,ypaprs,ypplay,yu,yv,yt,yq,ycdragm, & |
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| 101 | ycoefm0,ycoefh0) |
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| 102 | |
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| 103 | DO k = 2, klev |
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| 104 | DO i = 1, knon |
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| 105 | ycoefm(i,k) = MAX(ycoefm(i,k),ycoefm0(i,k)) |
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| 106 | ycoefh(i,k) = MAX(ycoefh(i,k),ycoefh0(i,k)) |
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| 107 | ENDDO |
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| 108 | ENDDO |
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| 109 | |
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| 110 | ENDIF |
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| 111 | |
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| 112 | |
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| 113 | !**************************************************************************************** |
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| 114 | ! MELLOR ET YAMADA adapte a Mars Richard Fournier et Frederic Hourdin |
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| 115 | ! |
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| 116 | !**************************************************************************************** |
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| 117 | |
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| 118 | IF (iflag_pbl.GE.3) THEN |
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| 119 | |
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| 120 | yzlay(1:knon,1)= & |
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| 121 | RD*yt(1:knon,1)/(0.5*(ypaprs(1:knon,1)+ypplay(1:knon,1))) & |
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| 122 | *(ypaprs(1:knon,1)-ypplay(1:knon,1))/RG |
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| 123 | DO k=2,klev |
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| 124 | DO i = 1, knon |
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| 125 | yzlay(i,k)= & |
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| 126 | yzlay(i,k-1)+RD*0.5*(yt(i,k-1)+yt(i,k)) & |
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| 127 | /ypaprs(i,k)*(ypplay(i,k-1)-ypplay(i,k))/RG |
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| 128 | END DO |
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| 129 | END DO |
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| 130 | |
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| 131 | DO k=1,klev |
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| 132 | DO i = 1, knon |
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| 133 | yteta(i,k)= & |
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| 134 | yt(i,k)*(ypaprs(i,1)/ypplay(i,k))**RKAPPA & |
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| 135 | *(1.+0.61*yq(i,k)) |
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| 136 | END DO |
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| 137 | END DO |
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| 138 | |
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| 139 | yzlev(1:knon,1)=0. |
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| 140 | yzlev(1:knon,klev+1)=2.*yzlay(1:knon,klev)-yzlay(1:knon,klev-1) |
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| 141 | DO k=2,klev |
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| 142 | DO i = 1, knon |
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| 143 | yzlev(i,k)=0.5*(yzlay(i,k)+yzlay(i,k-1)) |
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| 144 | END DO |
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| 145 | END DO |
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| 146 | |
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| 147 | !!$!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 148 | !!$! Pour memoire, le papier Hourdin et al. 2002 a ete obtenur avec un |
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| 149 | !!$! bug sur les coefficients de surface : |
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| 150 | !!$! ycdragh(1:knon) = ycoefm(1:knon,1) |
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| 151 | !!$! ycdragm(1:knon) = ycoefh(1:knon,1) |
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| 152 | !!$!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! |
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| 153 | CALL ustarhb(knon,yu,yv,ycdragm, yustar) |
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| 154 | |
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| 155 | IF (prt_level > 9) THEN |
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| 156 | WRITE(lunout,*) 'USTAR = ',yustar |
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| 157 | ENDIF |
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| 158 | |
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| 159 | ! iflag_pbl peut etre utilise comme longuer de melange |
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| 160 | IF (iflag_pbl.GE.31) THEN |
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| 161 | CALL vdif_kcay(knon,dtime,RG,RD,ypaprs,yt, & |
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| 162 | yzlev,yzlay,yu,yv,yteta, & |
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| 163 | ycdragm,yq2,q2diag,ykmm,ykmn,yustar, & |
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| 164 | iflag_pbl) |
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| 165 | ELSE IF (iflag_pbl<20) THEN |
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| 166 | CALL yamada4(ni,nsrf,knon,dtime,RG,RD,ypaprs,yt, & |
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| 167 | yzlev,yzlay,yu,yv,yteta, & |
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| 168 | ycdragm,yq2,ykmm,ykmn,ykmq,yustar, & |
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| 169 | iflag_pbl) |
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| 170 | ENDIF |
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| 171 | |
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| 172 | ycoefm(1:knon,2:klev)=ykmm(1:knon,2:klev) |
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| 173 | ycoefh(1:knon,2:klev)=ykmn(1:knon,2:klev) |
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| 174 | |
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| 175 | ENDIF !(iflag_pbl.ge.3) |
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| 176 | |
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| 177 | END SUBROUTINE coef_diff_turb |
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| 178 | ! |
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| 179 | !**************************************************************************************** |
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| 180 | ! |
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| 181 | SUBROUTINE coefkz(nsrf, knon, paprs, pplay, & |
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| 182 | ksta, ksta_ter, & |
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| 183 | ts, & |
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| 184 | u,v,t,q, & |
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| 185 | qsurf, & |
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| 186 | pcfm, pcfh) |
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| 187 | |
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| 188 | USE dimphy |
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| 189 | USE indice_sol_mod |
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| 190 | USE print_control_mod, ONLY: prt_level, lunout |
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| 191 | |
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| 192 | !====================================================================== |
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| 193 | ! Auteur(s) F. Hourdin, M. Forichon, Z.X. Li (LMD/CNRS) date: 19930922 |
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| 194 | ! (une version strictement identique a l'ancien modele) |
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| 195 | ! Objet: calculer le coefficient du frottement du sol (Cdrag) et les |
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| 196 | ! coefficients d'echange turbulent dans l'atmosphere. |
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| 197 | ! Arguments: |
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| 198 | ! nsrf-----input-I- indicateur de la nature du sol |
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| 199 | ! knon-----input-I- nombre de points a traiter |
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| 200 | ! paprs----input-R- pregssion a chaque intercouche (en Pa) |
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| 201 | ! pplay----input-R- pression au milieu de chaque couche (en Pa) |
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| 202 | ! ts-------input-R- temperature du sol (en Kelvin) |
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| 203 | ! u--------input-R- vitesse u |
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| 204 | ! v--------input-R- vitesse v |
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| 205 | ! t--------input-R- temperature (K) |
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| 206 | ! q--------input-R- vapeur d'eau (kg/kg) |
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| 207 | ! |
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| 208 | ! pcfm-----output-R- coefficients a calculer (vitesse) |
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| 209 | ! pcfh-----output-R- coefficients a calculer (chaleur et humidite) |
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| 210 | !====================================================================== |
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| 211 | INCLUDE "YOETHF.h" |
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| 212 | INCLUDE "YOMCST.h" |
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| 213 | INCLUDE "FCTTRE.h" |
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| 214 | INCLUDE "compbl.h" |
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| 215 | ! |
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| 216 | ! Arguments: |
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| 217 | ! |
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| 218 | INTEGER, INTENT(IN) :: knon, nsrf |
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| 219 | REAL, INTENT(IN) :: ksta, ksta_ter |
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| 220 | REAL, DIMENSION(klon), INTENT(IN) :: ts |
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| 221 | REAL, DIMENSION(klon,klev+1), INTENT(IN) :: paprs |
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| 222 | REAL, DIMENSION(klon,klev), INTENT(IN) :: pplay |
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| 223 | REAL, DIMENSION(klon,klev), INTENT(IN) :: u, v, t, q |
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| 224 | REAL, DIMENSION(klon), INTENT(IN) :: qsurf |
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| 225 | |
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| 226 | REAL, DIMENSION(klon,klev), INTENT(OUT) :: pcfm, pcfh |
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| 227 | |
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| 228 | ! |
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| 229 | ! Local variables: |
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| 230 | ! |
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| 231 | INTEGER, DIMENSION(klon) :: itop ! numero de couche du sommet de la couche limite |
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| 232 | ! |
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| 233 | ! Quelques constantes et options: |
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| 234 | ! |
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| 235 | REAL, PARAMETER :: cepdu2=0.1**2 |
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| 236 | REAL, PARAMETER :: CKAP=0.4 |
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| 237 | REAL, PARAMETER :: cb=5.0 |
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| 238 | REAL, PARAMETER :: cc=5.0 |
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| 239 | REAL, PARAMETER :: cd=5.0 |
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| 240 | REAL, PARAMETER :: clam=160.0 |
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| 241 | REAL, PARAMETER :: ratqs=0.05 ! largeur de distribution de vapeur d'eau |
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| 242 | LOGICAL, PARAMETER :: richum=.TRUE. ! utilise le nombre de Richardson humide |
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| 243 | REAL, PARAMETER :: ric=0.4 ! nombre de Richardson critique |
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| 244 | REAL, PARAMETER :: prandtl=0.4 |
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| 245 | REAL kstable ! diffusion minimale (situation stable) |
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| 246 | ! GKtest |
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| 247 | ! PARAMETER (kstable=1.0e-10) |
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| 248 | !IM: 261103 REAL kstable_ter, kstable_sinon |
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| 249 | !IM: 211003 cf GK PARAMETER (kstable_ter = 1.0e-6) |
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| 250 | !IM: 261103 PARAMETER (kstable_ter = 1.0e-8) |
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| 251 | !IM: 261103 PARAMETER (kstable_ter = 1.0e-10) |
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| 252 | !IM: 261103 PARAMETER (kstable_sinon = 1.0e-10) |
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| 253 | ! fin GKtest |
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| 254 | REAL, PARAMETER :: mixlen=35.0 ! constante controlant longueur de melange |
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| 255 | INTEGER isommet ! le sommet de la couche limite |
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| 256 | LOGICAL, PARAMETER :: tvirtu=.TRUE. ! calculer Ri d'une maniere plus performante |
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| 257 | LOGICAL, PARAMETER :: opt_ec=.FALSE.! formule du Centre Europeen dans l'atmosphere |
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| 258 | |
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| 259 | ! |
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| 260 | ! Variables locales: |
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| 261 | INTEGER i, k !IM 120704 |
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| 262 | REAL zgeop(klon,klev) |
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| 263 | REAL zmgeom(klon) |
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| 264 | REAL zri(klon) |
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| 265 | REAL zl2(klon) |
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| 266 | REAL zdphi, zdu2, ztvd, ztvu, zcdn |
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| 267 | REAL zscf |
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| 268 | REAL zt, zq, zdelta, zcvm5, zcor, zqs, zfr, zdqs |
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| 269 | REAL z2geomf, zalh2, zalm2, zscfh, zscfm |
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| 270 | REAL, PARAMETER :: t_coup=273.15 |
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| 271 | LOGICAL, PARAMETER :: check=.FALSE. |
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| 272 | ! |
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| 273 | ! contre-gradient pour la chaleur sensible: Kelvin/metre |
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| 274 | REAL gamt(2:klev) |
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| 275 | |
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| 276 | LOGICAL, SAVE :: appel1er=.TRUE. |
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| 277 | !$OMP THREADPRIVATE(appel1er) |
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| 278 | ! |
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| 279 | ! Fonctions thermodynamiques et fonctions d'instabilite |
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| 280 | REAL fsta, fins, x |
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| 281 | |
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| 282 | fsta(x) = 1.0 / (1.0+10.0*x*(1+8.0*x)) |
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| 283 | fins(x) = SQRT(1.0-18.0*x) |
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| 284 | |
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| 285 | isommet=klev |
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| 286 | |
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| 287 | IF (appel1er) THEN |
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| 288 | IF (prt_level > 9) THEN |
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| 289 | WRITE(lunout,*)'coefkz, opt_ec:', opt_ec |
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| 290 | WRITE(lunout,*)'coefkz, richum:', richum |
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| 291 | IF (richum) WRITE(lunout,*)'coefkz, ratqs:', ratqs |
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| 292 | WRITE(lunout,*)'coefkz, isommet:', isommet |
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| 293 | WRITE(lunout,*)'coefkz, tvirtu:', tvirtu |
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| 294 | appel1er = .FALSE. |
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| 295 | ENDIF |
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| 296 | ENDIF |
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| 297 | ! |
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| 298 | ! Initialiser les sorties |
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| 299 | ! |
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| 300 | DO k = 1, klev |
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| 301 | DO i = 1, knon |
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| 302 | pcfm(i,k) = 0.0 |
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| 303 | pcfh(i,k) = 0.0 |
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| 304 | ENDDO |
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| 305 | ENDDO |
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| 306 | DO i = 1, knon |
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| 307 | itop(i) = 0 |
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| 308 | ENDDO |
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| 309 | |
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| 310 | ! |
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| 311 | ! Prescrire la valeur de contre-gradient |
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| 312 | ! |
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| 313 | IF (iflag_pbl.EQ.1) THEN |
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| 314 | DO k = 3, klev |
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| 315 | gamt(k) = -1.0E-03 |
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| 316 | ENDDO |
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| 317 | gamt(2) = -2.5E-03 |
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| 318 | ELSE |
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| 319 | DO k = 2, klev |
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| 320 | gamt(k) = 0.0 |
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| 321 | ENDDO |
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| 322 | ENDIF |
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| 323 | !IM cf JLD/ GKtest |
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| 324 | IF ( nsrf .NE. is_oce ) THEN |
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| 325 | !IM 261103 kstable = kstable_ter |
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| 326 | kstable = ksta_ter |
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| 327 | ELSE |
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| 328 | !IM 261103 kstable = kstable_sinon |
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| 329 | kstable = ksta |
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| 330 | ENDIF |
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| 331 | !IM cf JLD/ GKtest fin |
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| 332 | |
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| 333 | ! |
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| 334 | ! Calculer les geopotentiels de chaque couche |
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| 335 | ! |
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| 336 | DO i = 1, knon |
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| 337 | zgeop(i,1) = RD * t(i,1) / (0.5*(paprs(i,1)+pplay(i,1))) & |
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| 338 | * (paprs(i,1)-pplay(i,1)) |
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| 339 | ENDDO |
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| 340 | DO k = 2, klev |
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| 341 | DO i = 1, knon |
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| 342 | zgeop(i,k) = zgeop(i,k-1) & |
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| 343 | + RD * 0.5*(t(i,k-1)+t(i,k)) / paprs(i,k) & |
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| 344 | * (pplay(i,k-1)-pplay(i,k)) |
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| 345 | ENDDO |
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| 346 | ENDDO |
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| 347 | |
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| 348 | ! |
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| 349 | ! Calculer les coefficients turbulents dans l'atmosphere |
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| 350 | ! |
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| 351 | DO i = 1, knon |
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| 352 | itop(i) = isommet |
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| 353 | ENDDO |
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| 354 | |
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| 355 | |
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| 356 | DO k = 2, isommet |
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| 357 | DO i = 1, knon |
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| 358 | zdu2=MAX(cepdu2,(u(i,k)-u(i,k-1))**2 & |
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| 359 | +(v(i,k)-v(i,k-1))**2) |
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| 360 | zmgeom(i)=zgeop(i,k)-zgeop(i,k-1) |
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| 361 | zdphi =zmgeom(i) / 2.0 |
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| 362 | zt = (t(i,k)+t(i,k-1)) * 0.5 |
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| 363 | zq = (q(i,k)+q(i,k-1)) * 0.5 |
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| 364 | |
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| 365 | ! |
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| 366 | ! Calculer Qs et dQs/dT: |
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| 367 | ! |
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| 368 | IF (thermcep) THEN |
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| 369 | zdelta = MAX(0.,SIGN(1.,RTT-zt)) |
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| 370 | zcvm5 = R5LES*RLVTT/RCPD/(1.0+RVTMP2*zq)*(1.-zdelta) & |
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| 371 | + R5IES*RLSTT/RCPD/(1.0+RVTMP2*zq)*zdelta |
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| 372 | zqs = R2ES * FOEEW(zt,zdelta) / pplay(i,k) |
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| 373 | zqs = MIN(0.5,zqs) |
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| 374 | zcor = 1./(1.-RETV*zqs) |
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| 375 | zqs = zqs*zcor |
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| 376 | zdqs = FOEDE(zt,zdelta,zcvm5,zqs,zcor) |
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| 377 | ELSE |
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| 378 | IF (zt .LT. t_coup) THEN |
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| 379 | zqs = qsats(zt) / pplay(i,k) |
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| 380 | zdqs = dqsats(zt,zqs) |
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| 381 | ELSE |
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| 382 | zqs = qsatl(zt) / pplay(i,k) |
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| 383 | zdqs = dqsatl(zt,zqs) |
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| 384 | ENDIF |
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| 385 | ENDIF |
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| 386 | ! |
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| 387 | ! calculer la fraction nuageuse (processus humide): |
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| 388 | ! |
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| 389 | if (zq /= 0.) then |
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| 390 | zfr = (zq+ratqs*zq-zqs) / (2.0*ratqs*zq) |
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| 391 | else |
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| 392 | zfr = 0. |
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| 393 | end if |
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| 394 | zfr = MAX(0.0,MIN(1.0,zfr)) |
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| 395 | IF (.NOT.richum) zfr = 0.0 |
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| 396 | ! |
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| 397 | ! calculer le nombre de Richardson: |
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| 398 | ! |
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| 399 | IF (tvirtu) THEN |
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| 400 | ztvd =( t(i,k) & |
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| 401 | + zdphi/RCPD/(1.+RVTMP2*zq) & |
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| 402 | *( (1.-zfr) + zfr*(1.+RLVTT*zqs/RD/zt)/(1.+zdqs) ) & |
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| 403 | )*(1.+RETV*q(i,k)) |
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| 404 | ztvu =( t(i,k-1) & |
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| 405 | - zdphi/RCPD/(1.+RVTMP2*zq) & |
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| 406 | *( (1.-zfr) + zfr*(1.+RLVTT*zqs/RD/zt)/(1.+zdqs) ) & |
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| 407 | )*(1.+RETV*q(i,k-1)) |
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| 408 | zri(i) =zmgeom(i)*(ztvd-ztvu)/(zdu2*0.5*(ztvd+ztvu)) |
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| 409 | zri(i) = zri(i) & |
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| 410 | + zmgeom(i)*zmgeom(i)/RG*gamt(k) & |
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| 411 | *(paprs(i,k)/101325.0)**RKAPPA & |
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| 412 | /(zdu2*0.5*(ztvd+ztvu)) |
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| 413 | |
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| 414 | ELSE ! calcul de Ridchardson compatible LMD5 |
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| 415 | |
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| 416 | zri(i) =(RCPD*(t(i,k)-t(i,k-1)) & |
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| 417 | -RD*0.5*(t(i,k)+t(i,k-1))/paprs(i,k) & |
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| 418 | *(pplay(i,k)-pplay(i,k-1)) & |
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| 419 | )*zmgeom(i)/(zdu2*0.5*RCPD*(t(i,k-1)+t(i,k))) |
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| 420 | zri(i) = zri(i) + & |
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| 421 | zmgeom(i)*zmgeom(i)*gamt(k)/RG & |
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| 422 | *(paprs(i,k)/101325.0)**RKAPPA & |
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| 423 | /(zdu2*0.5*(t(i,k-1)+t(i,k))) |
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| 424 | ENDIF |
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| 425 | ! |
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| 426 | ! finalement, les coefficients d'echange sont obtenus: |
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| 427 | ! |
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| 428 | zcdn=SQRT(zdu2) / zmgeom(i) * RG |
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| 429 | |
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| 430 | IF (opt_ec) THEN |
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| 431 | z2geomf=zgeop(i,k-1)+zgeop(i,k) |
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| 432 | zalm2=(0.5*ckap/RG*z2geomf & |
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| 433 | /(1.+0.5*ckap/rg/clam*z2geomf))**2 |
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| 434 | zalh2=(0.5*ckap/rg*z2geomf & |
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| 435 | /(1.+0.5*ckap/RG/(clam*SQRT(1.5*cd))*z2geomf))**2 |
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| 436 | IF (zri(i).LT.0.0) THEN ! situation instable |
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| 437 | zscf = ((zgeop(i,k)/zgeop(i,k-1))**(1./3.)-1.)**3 & |
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| 438 | / (zmgeom(i)/RG)**3 / (zgeop(i,k-1)/RG) |
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| 439 | zscf = SQRT(-zri(i)*zscf) |
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| 440 | zscfm = 1.0 / (1.0+3.0*cb*cc*zalm2*zscf) |
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| 441 | zscfh = 1.0 / (1.0+3.0*cb*cc*zalh2*zscf) |
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| 442 | pcfm(i,k)=zcdn*zalm2*(1.-2.0*cb*zri(i)*zscfm) |
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| 443 | pcfh(i,k)=zcdn*zalh2*(1.-3.0*cb*zri(i)*zscfh) |
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| 444 | ELSE ! situation stable |
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| 445 | zscf=SQRT(1.+cd*zri(i)) |
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| 446 | pcfm(i,k)=zcdn*zalm2/(1.+2.0*cb*zri(i)/zscf) |
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| 447 | pcfh(i,k)=zcdn*zalh2/(1.+3.0*cb*zri(i)*zscf) |
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| 448 | ENDIF |
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| 449 | ELSE |
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| 450 | zl2(i)=(mixlen*MAX(0.0,(paprs(i,k)-paprs(i,itop(i)+1)) & |
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| 451 | /(paprs(i,2)-paprs(i,itop(i)+1)) ))**2 |
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| 452 | pcfm(i,k)=SQRT(MAX(zcdn*zcdn*(ric-zri(i))/ric, kstable)) |
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| 453 | pcfm(i,k)= zl2(i)* pcfm(i,k) |
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| 454 | pcfh(i,k) = pcfm(i,k) /prandtl ! h et m different |
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| 455 | ENDIF |
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| 456 | ENDDO |
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| 457 | ENDDO |
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| 458 | |
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| 459 | ! |
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| 460 | ! Au-dela du sommet, pas de diffusion turbulente: |
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| 461 | ! |
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| 462 | DO i = 1, knon |
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| 463 | IF (itop(i)+1 .LE. klev) THEN |
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| 464 | DO k = itop(i)+1, klev |
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| 465 | pcfh(i,k) = 0.0 |
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| 466 | pcfm(i,k) = 0.0 |
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| 467 | ENDDO |
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| 468 | ENDIF |
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| 469 | ENDDO |
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| 470 | |
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| 471 | END SUBROUTINE coefkz |
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| 472 | ! |
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| 473 | !**************************************************************************************** |
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| 474 | ! |
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| 475 | SUBROUTINE coefkz2(nsrf, knon, paprs, pplay,t, & |
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| 476 | pcfm, pcfh) |
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| 477 | |
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| 478 | USE dimphy |
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| 479 | USE indice_sol_mod |
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| 480 | |
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| 481 | !====================================================================== |
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| 482 | ! J'introduit un peu de diffusion sauf dans les endroits |
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| 483 | ! ou une forte inversion est presente |
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| 484 | ! On peut dire qu'il represente la convection peu profonde |
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| 485 | ! |
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| 486 | ! Arguments: |
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| 487 | ! nsrf-----input-I- indicateur de la nature du sol |
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| 488 | ! knon-----input-I- nombre de points a traiter |
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| 489 | ! paprs----input-R- pression a chaque intercouche (en Pa) |
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| 490 | ! pplay----input-R- pression au milieu de chaque couche (en Pa) |
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| 491 | ! t--------input-R- temperature (K) |
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| 492 | ! |
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| 493 | ! pcfm-----output-R- coefficients a calculer (vitesse) |
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| 494 | ! pcfh-----output-R- coefficients a calculer (chaleur et humidite) |
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| 495 | !====================================================================== |
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| 496 | ! |
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| 497 | ! Arguments: |
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| 498 | ! |
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| 499 | INTEGER, INTENT(IN) :: knon, nsrf |
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| 500 | REAL, DIMENSION(klon, klev+1), INTENT(IN) :: paprs |
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| 501 | REAL, DIMENSION(klon, klev), INTENT(IN) :: pplay |
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| 502 | REAL, DIMENSION(klon, klev), INTENT(IN) :: t(klon,klev) |
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| 503 | |
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| 504 | REAL, DIMENSION(klon, klev), INTENT(OUT) :: pcfm, pcfh |
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| 505 | ! |
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| 506 | ! Quelques constantes et options: |
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| 507 | ! |
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| 508 | REAL, PARAMETER :: prandtl=0.4 |
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| 509 | REAL, PARAMETER :: kstable=0.002 |
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| 510 | ! REAL, PARAMETER :: kstable=0.001 |
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| 511 | REAL, PARAMETER :: mixlen=35.0 ! constante controlant longueur de melange |
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| 512 | REAL, PARAMETER :: seuil=-0.02 ! au-dela l'inversion est consideree trop faible |
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| 513 | ! PARAMETER (seuil=-0.04) |
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| 514 | ! PARAMETER (seuil=-0.06) |
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| 515 | ! PARAMETER (seuil=-0.09) |
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| 516 | |
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| 517 | ! |
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| 518 | ! Variables locales: |
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| 519 | ! |
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| 520 | INTEGER i, k, invb(knon) |
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| 521 | REAL zl2(knon) |
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| 522 | REAL zdthmin(knon), zdthdp |
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| 523 | |
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| 524 | INCLUDE "YOMCST.h" |
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| 525 | ! |
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| 526 | ! Initialiser les sorties |
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| 527 | ! |
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| 528 | DO k = 1, klev |
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| 529 | DO i = 1, knon |
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| 530 | pcfm(i,k) = 0.0 |
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| 531 | pcfh(i,k) = 0.0 |
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| 532 | ENDDO |
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| 533 | ENDDO |
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| 534 | |
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| 535 | ! |
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| 536 | ! Chercher la zone d'inversion forte |
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| 537 | ! |
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| 538 | DO i = 1, knon |
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| 539 | invb(i) = klev |
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| 540 | zdthmin(i)=0.0 |
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| 541 | ENDDO |
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| 542 | DO k = 2, klev/2-1 |
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| 543 | DO i = 1, knon |
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| 544 | zdthdp = (t(i,k)-t(i,k+1))/(pplay(i,k)-pplay(i,k+1)) & |
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| 545 | - RD * 0.5*(t(i,k)+t(i,k+1))/RCPD/paprs(i,k+1) |
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| 546 | zdthdp = zdthdp * 100.0 |
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| 547 | IF (pplay(i,k).GT.0.8*paprs(i,1) .AND. & |
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| 548 | zdthdp.LT.zdthmin(i) ) THEN |
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| 549 | zdthmin(i) = zdthdp |
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| 550 | invb(i) = k |
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| 551 | ENDIF |
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| 552 | ENDDO |
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| 553 | ENDDO |
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| 554 | |
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| 555 | ! |
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| 556 | ! Introduire une diffusion: |
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| 557 | ! |
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| 558 | IF ( nsrf.EQ.is_oce ) THEN |
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| 559 | DO k = 2, klev |
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| 560 | DO i = 1, knon |
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| 561 | !IM cf FH/GK IF ( (nsrf.NE.is_oce) .OR. ! si ce n'est pas sur l'ocean |
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| 562 | !IM cf FH/GK . (invb(i).EQ.klev) .OR. ! s'il n'y a pas d'inversion |
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| 563 | !IM cf JLD/ GKtest TERkz2 |
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| 564 | ! IF ( (nsrf.EQ.is_ter) .OR. ! si on est sur la terre |
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| 565 | ! fin GKtest |
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| 566 | |
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| 567 | |
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| 568 | ! s'il n'y a pas d'inversion ou si l'inversion est trop faible |
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| 569 | ! IF ( (nsrf.EQ.is_oce) .AND. & |
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| 570 | IF ( (invb(i).EQ.klev) .OR. (zdthmin(i).GT.seuil) ) THEN |
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| 571 | zl2(i)=(mixlen*MAX(0.0,(paprs(i,k)-paprs(i,klev+1)) & |
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| 572 | /(paprs(i,2)-paprs(i,klev+1)) ))**2 |
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| 573 | pcfm(i,k)= zl2(i)* kstable |
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| 574 | pcfh(i,k) = pcfm(i,k) /prandtl ! h et m different |
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| 575 | ENDIF |
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| 576 | ENDDO |
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| 577 | ENDDO |
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| 578 | ENDIF |
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| 579 | |
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| 580 | END SUBROUTINE coefkz2 |
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| 581 | ! |
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| 582 | !**************************************************************************************** |
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| 583 | ! |
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| 584 | END MODULE coef_diff_turb_mod |
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