| 1 |
! |
module soil_m |
|
! $Header: /home/cvsroot/LMDZ4/libf/phylmd/soil.F,v 1.1.1.1 2004/05/19 12:53:09 lmdzadmin Exp $ |
|
|
! |
|
|
SUBROUTINE soil(ptimestep, indice, knon, snow, ptsrf, ptsoil, |
|
|
s pcapcal, pfluxgrd) |
|
|
use dimens_m |
|
|
use indicesol |
|
|
use dimphy |
|
|
use dimsoil |
|
|
use SUPHEC_M |
|
|
IMPLICIT NONE |
|
|
|
|
|
c======================================================================= |
|
|
c |
|
|
c Auteur: Frederic Hourdin 30/01/92 |
|
|
c ------- |
|
|
c |
|
|
c objet: computation of : the soil temperature evolution |
|
|
c ------ the surfacic heat capacity "Capcal" |
|
|
c the surface conduction flux pcapcal |
|
|
c |
|
|
c |
|
|
c Method: implicit time integration |
|
|
c ------- |
|
|
c Consecutive ground temperatures are related by: |
|
|
c T(k+1) = C(k) + D(k)*T(k) (1) |
|
|
c the coefficients C and D are computed at the t-dt time-step. |
|
|
c Routine structure: |
|
|
c 1)new temperatures are computed using (1) |
|
|
c 2)C and D coefficients are computed from the new temperature |
|
|
c profile for the t+dt time-step |
|
|
c 3)the coefficients A and B are computed where the diffusive |
|
|
c fluxes at the t+dt time-step is given by |
|
|
c Fdiff = A + B Ts(t+dt) |
|
|
c or Fdiff = F0 + Capcal (Ts(t+dt)-Ts(t))/dt |
|
|
c with F0 = A + B (Ts(t)) |
|
|
c Capcal = B*dt |
|
|
c |
|
|
c Interface: |
|
|
c ---------- |
|
|
c |
|
|
c Arguments: |
|
|
c ---------- |
|
|
c ptimestep physical timestep (s) |
|
|
c indice sub-surface index |
|
|
c snow(klon,nbsrf) snow |
|
|
c ptsrf(klon) surface temperature at time-step t (K) |
|
|
c ptsoil(klon,nsoilmx) temperature inside the ground (K) |
|
|
c pcapcal(klon) surfacic specific heat (W*m-2*s*K-1) |
|
|
c pfluxgrd(klon) surface diffusive flux from ground (Wm-2) |
|
|
c |
|
|
c======================================================================= |
|
|
c declarations: |
|
|
c ------------- |
|
|
|
|
|
|
|
|
c----------------------------------------------------------------------- |
|
|
c arguments |
|
|
c --------- |
|
|
|
|
|
REAL ptimestep |
|
|
INTEGER indice, knon |
|
|
REAL ptsrf(klon),ptsoil(klon,nsoilmx),snow(klon) |
|
|
REAL pcapcal(klon),pfluxgrd(klon) |
|
|
|
|
|
c----------------------------------------------------------------------- |
|
|
c local arrays |
|
|
c ------------ |
|
|
|
|
|
INTEGER ig,jk |
|
|
c$$$ REAL zdz2(nsoilmx),z1(klon) |
|
|
REAL zdz2(nsoilmx),z1(klon,nbsrf) |
|
|
REAL min_period,dalph_soil |
|
|
REAL ztherm_i(klon) |
|
|
|
|
|
c local saved variables: |
|
|
c ---------------------- |
|
|
REAL dz1(nsoilmx),dz2(nsoilmx) |
|
|
c$$$ REAL zc(klon,nsoilmx),zd(klon,nsoilmx) |
|
|
REAL zc(klon,nsoilmx,nbsrf),zd(klon,nsoilmx,nbsrf) |
|
|
REAL lambda |
|
|
SAVE dz1,dz2,zc,zd,lambda |
|
|
LOGICAL firstcall, firstsurf(nbsrf) |
|
|
SAVE firstcall, firstsurf |
|
|
REAL isol,isno,iice |
|
|
SAVE isol,isno,iice |
|
|
|
|
|
DATA firstcall/.true./ |
|
|
DATA firstsurf/.TRUE.,.TRUE.,.TRUE.,.TRUE./ |
|
|
|
|
|
DATA isol,isno,iice/2000.,2000.,2000./ |
|
|
|
|
|
c----------------------------------------------------------------------- |
|
|
c Depthts: |
|
|
c -------- |
|
|
|
|
|
REAL fz,rk,fz1,rk1,rk2 |
|
|
fz(rk)=fz1*(dalph_soil**rk-1.)/(dalph_soil-1.) |
|
|
pfluxgrd(:) = 0. |
|
|
c calcul de l'inertie thermique a partir de la variable rnat. |
|
|
c on initialise a iice meme au-dessus d'un point de mer au cas |
|
|
c ou le point de mer devienne point de glace au pas suivant |
|
|
c on corrige si on a un point de terre avec ou sans glace |
|
|
c |
|
|
IF (indice.EQ.is_sic) THEN |
|
|
DO ig = 1, knon |
|
|
ztherm_i(ig) = iice |
|
|
IF (snow(ig).GT.0.0) ztherm_i(ig) = isno |
|
|
ENDDO |
|
|
ELSE IF (indice.EQ.is_lic) THEN |
|
|
DO ig = 1, knon |
|
|
ztherm_i(ig) = iice |
|
|
IF (snow(ig).GT.0.0) ztherm_i(ig) = isno |
|
|
ENDDO |
|
|
ELSE IF (indice.EQ.is_ter) THEN |
|
|
DO ig = 1, knon |
|
|
ztherm_i(ig) = isol |
|
|
IF (snow(ig).GT.0.0) ztherm_i(ig) = isno |
|
|
ENDDO |
|
|
ELSE IF (indice.EQ.is_oce) THEN |
|
|
DO ig = 1, knon |
|
|
ztherm_i(ig) = iice |
|
|
ENDDO |
|
|
ELSE |
|
|
PRINT*, "valeur d indice non prevue", indice |
|
|
stop 1 |
|
|
ENDIF |
|
|
|
|
|
|
|
|
c$$$ IF (firstcall) THEN |
|
|
IF (firstsurf(indice)) THEN |
|
|
|
|
|
c----------------------------------------------------------------------- |
|
|
c ground levels |
|
|
c grnd=z/l where l is the skin depth of the diurnal cycle: |
|
|
c -------------------------------------------------------- |
|
|
|
|
|
min_period=1800. ! en secondes |
|
|
dalph_soil=2. ! rapport entre les epaisseurs de 2 couches succ. |
|
|
|
|
|
OPEN(99,file='soil.def',status='old',form='formatted',err=9999) |
|
|
READ(99,*) min_period |
|
|
READ(99,*) dalph_soil |
|
|
PRINT*,'Discretization for the soil model' |
|
|
PRINT*,'First level e-folding depth',min_period, |
|
|
s ' dalph',dalph_soil |
|
|
CLOSE(99) |
|
|
9999 CONTINUE |
|
|
|
|
|
c la premiere couche represente un dixieme de cycle diurne |
|
|
fz1=sqrt(min_period/3.14) |
|
|
|
|
|
DO jk=1,nsoilmx |
|
|
rk1=jk |
|
|
rk2=jk-1 |
|
|
dz2(jk)=fz(rk1)-fz(rk2) |
|
|
ENDDO |
|
|
DO jk=1,nsoilmx-1 |
|
|
rk1=jk+.5 |
|
|
rk2=jk-.5 |
|
|
dz1(jk)=1./(fz(rk1)-fz(rk2)) |
|
|
ENDDO |
|
|
lambda=fz(.5)*dz1(1) |
|
|
PRINT*,'full layers, intermediate layers (seconds)' |
|
|
DO jk=1,nsoilmx |
|
|
rk=jk |
|
|
rk1=jk+.5 |
|
|
rk2=jk-.5 |
|
|
PRINT *,'fz=', |
|
|
. fz(rk1)*fz(rk2)*3.14,fz(rk)*fz(rk)*3.14 |
|
|
ENDDO |
|
|
C PB |
|
|
firstsurf(indice) = .FALSE. |
|
|
c$$$ firstcall =.false. |
|
|
|
|
|
c Initialisations: |
|
|
c ---------------- |
|
|
|
|
|
ELSE !--not firstcall |
|
|
c----------------------------------------------------------------------- |
|
|
c Computation of the soil temperatures using the Cgrd and Dgrd |
|
|
c coefficient computed at the previous time-step: |
|
|
c ----------------------------------------------- |
|
|
|
|
|
c surface temperature |
|
|
DO ig=1,knon |
|
|
ptsoil(ig,1)=(lambda*zc(ig,1,indice)+ptsrf(ig))/ |
|
|
s (lambda*(1.-zd(ig,1,indice))+1.) |
|
|
ENDDO |
|
|
|
|
|
c other temperatures |
|
|
DO jk=1,nsoilmx-1 |
|
|
DO ig=1,knon |
|
|
ptsoil(ig,jk+1)=zc(ig,jk,indice)+zd(ig,jk,indice) |
|
|
$ *ptsoil(ig,jk) |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
ENDIF !--not firstcall |
|
|
c----------------------------------------------------------------------- |
|
|
c Computation of the Cgrd and Dgrd coefficient for the next step: |
|
|
c --------------------------------------------------------------- |
|
|
|
|
|
c$$$ PB ajout pour cas glace de mer |
|
|
IF (indice .EQ. is_sic) THEN |
|
|
DO ig = 1 , knon |
|
|
ptsoil(ig,nsoilmx) = RTT - 1.8 |
|
|
END DO |
|
|
ENDIF |
|
|
|
|
|
DO jk=1,nsoilmx |
|
|
zdz2(jk)=dz2(jk)/ptimestep |
|
|
ENDDO |
|
|
|
|
|
DO ig=1,knon |
|
|
z1(ig,indice)=zdz2(nsoilmx)+dz1(nsoilmx-1) |
|
|
zc(ig,nsoilmx-1,indice)= |
|
|
$ zdz2(nsoilmx)*ptsoil(ig,nsoilmx)/z1(ig,indice) |
|
|
zd(ig,nsoilmx-1,indice)=dz1(nsoilmx-1)/z1(ig,indice) |
|
|
ENDDO |
|
|
|
|
|
DO jk=nsoilmx-1,2,-1 |
|
|
DO ig=1,knon |
|
|
z1(ig,indice)=1./(zdz2(jk)+dz1(jk-1)+dz1(jk) |
|
|
$ *(1.-zd(ig,jk,indice))) |
|
|
zc(ig,jk-1,indice)= |
|
|
s (ptsoil(ig,jk)*zdz2(jk)+dz1(jk)*zc(ig,jk,indice)) |
|
|
$ *z1(ig,indice) |
|
|
zd(ig,jk-1,indice)=dz1(jk-1)*z1(ig,indice) |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
c----------------------------------------------------------------------- |
|
|
c computation of the surface diffusive flux from ground and |
|
|
c calorific capacity of the ground: |
|
|
c --------------------------------- |
|
|
|
|
|
DO ig=1,knon |
|
|
pfluxgrd(ig)=ztherm_i(ig)*dz1(1)* |
|
|
s (zc(ig,1,indice)+(zd(ig,1,indice)-1.)*ptsoil(ig,1)) |
|
|
pcapcal(ig)=ztherm_i(ig)* |
|
|
s (dz2(1)+ptimestep*(1.-zd(ig,1,indice))*dz1(1)) |
|
|
z1(ig,indice)=lambda*(1.-zd(ig,1,indice))+1. |
|
|
pcapcal(ig)=pcapcal(ig)/z1(ig,indice) |
|
|
pfluxgrd(ig) = pfluxgrd(ig) |
|
|
s + pcapcal(ig) * (ptsoil(ig,1) * z1(ig,indice) |
|
|
$ - lambda * zc(ig,1,indice) |
|
|
$ - ptsrf(ig)) |
|
|
s /ptimestep |
|
|
ENDDO |
|
| 2 |
|
|
| 3 |
RETURN |
IMPLICIT NONE |
| 4 |
END |
|
| 5 |
|
contains |
| 6 |
|
|
| 7 |
|
SUBROUTINE soil(ptimestep, indice, knon, snow, ptsrf, ptsoil, pcapcal, & |
| 8 |
|
pfluxgrd) |
| 9 |
|
|
| 10 |
|
! From LMDZ4/libf/phylmd/soil.F, version 1.1.1.1 2004/05/19 |
| 11 |
|
|
| 12 |
|
USE dimens_m |
| 13 |
|
USE indicesol |
| 14 |
|
USE dimphy |
| 15 |
|
USE dimsoil |
| 16 |
|
USE suphec_m |
| 17 |
|
|
| 18 |
|
! ======================================================================= |
| 19 |
|
|
| 20 |
|
! Auteur: Frederic Hourdin 30/01/92 |
| 21 |
|
! ------- |
| 22 |
|
|
| 23 |
|
! objet: computation of : the soil temperature evolution |
| 24 |
|
! ------ the surfacic heat capacity "Capcal" |
| 25 |
|
! the surface conduction flux pcapcal |
| 26 |
|
|
| 27 |
|
|
| 28 |
|
! Method: implicit time integration |
| 29 |
|
! ------- |
| 30 |
|
! Consecutive ground temperatures are related by: |
| 31 |
|
! T(k+1) = C(k) + D(k)*T(k) (1) |
| 32 |
|
! the coefficients C and D are computed at the t-dt time-step. |
| 33 |
|
! Routine structure: |
| 34 |
|
! 1)new temperatures are computed using (1) |
| 35 |
|
! 2)C and D coefficients are computed from the new temperature |
| 36 |
|
! profile for the t+dt time-step |
| 37 |
|
! 3)the coefficients A and B are computed where the diffusive |
| 38 |
|
! fluxes at the t+dt time-step is given by |
| 39 |
|
! Fdiff = A + B Ts(t+dt) |
| 40 |
|
! or Fdiff = F0 + Capcal (Ts(t+dt)-Ts(t))/dt |
| 41 |
|
! with F0 = A + B (Ts(t)) |
| 42 |
|
! Capcal = B*dt |
| 43 |
|
|
| 44 |
|
! Interface: |
| 45 |
|
! ---------- |
| 46 |
|
|
| 47 |
|
! Arguments: |
| 48 |
|
! ---------- |
| 49 |
|
! ptimestep physical timestep (s) |
| 50 |
|
! indice sub-surface index |
| 51 |
|
! snow(klon,nbsrf) snow |
| 52 |
|
! ptsrf(klon) surface temperature at time-step t (K) |
| 53 |
|
! ptsoil(klon,nsoilmx) temperature inside the ground (K) |
| 54 |
|
! pcapcal(klon) surfacic specific heat (W*m-2*s*K-1) |
| 55 |
|
! pfluxgrd(klon) surface diffusive flux from ground (Wm-2) |
| 56 |
|
|
| 57 |
|
! ======================================================================= |
| 58 |
|
! declarations: |
| 59 |
|
! ------------- |
| 60 |
|
|
| 61 |
|
|
| 62 |
|
! ----------------------------------------------------------------------- |
| 63 |
|
! arguments |
| 64 |
|
! --------- |
| 65 |
|
|
| 66 |
|
REAL ptimestep |
| 67 |
|
INTEGER indice, knon |
| 68 |
|
REAL ptsrf(klon), ptsoil(klon, nsoilmx), snow(klon) |
| 69 |
|
REAL pcapcal(klon), pfluxgrd(klon) |
| 70 |
|
|
| 71 |
|
! ----------------------------------------------------------------------- |
| 72 |
|
! local arrays |
| 73 |
|
! ------------ |
| 74 |
|
|
| 75 |
|
INTEGER ig, jk |
| 76 |
|
! $$$ REAL zdz2(nsoilmx),z1(klon) |
| 77 |
|
REAL zdz2(nsoilmx), z1(klon, nbsrf) |
| 78 |
|
REAL min_period, dalph_soil |
| 79 |
|
REAL ztherm_i(klon) |
| 80 |
|
|
| 81 |
|
! local saved variables: |
| 82 |
|
! ---------------------- |
| 83 |
|
REAL dz1(nsoilmx), dz2(nsoilmx) |
| 84 |
|
! $$$ REAL zc(klon,nsoilmx),zd(klon,nsoilmx) |
| 85 |
|
REAL zc(klon, nsoilmx, nbsrf), zd(klon, nsoilmx, nbsrf) |
| 86 |
|
REAL lambda |
| 87 |
|
SAVE dz1, dz2, zc, zd, lambda |
| 88 |
|
LOGICAL firstcall, firstsurf(nbsrf) |
| 89 |
|
SAVE firstcall, firstsurf |
| 90 |
|
REAL isol, isno, iice |
| 91 |
|
SAVE isol, isno, iice |
| 92 |
|
|
| 93 |
|
DATA firstcall/.TRUE./ |
| 94 |
|
DATA firstsurf/.TRUE., .TRUE., .TRUE., .TRUE./ |
| 95 |
|
|
| 96 |
|
DATA isol, isno, iice/2000., 2000., 2000./ |
| 97 |
|
|
| 98 |
|
! ----------------------------------------------------------------------- |
| 99 |
|
! Depthts: |
| 100 |
|
! -------- |
| 101 |
|
|
| 102 |
|
REAL fz, rk, fz1, rk1, rk2 |
| 103 |
|
|
| 104 |
|
fz(rk) = fz1*(dalph_soil**rk-1.)/(dalph_soil-1.) |
| 105 |
|
pfluxgrd(:) = 0. |
| 106 |
|
! calcul de l'inertie thermique a partir de la variable rnat. |
| 107 |
|
! on initialise a iice meme au-dessus d'un point de mer au cas |
| 108 |
|
! ou le point de mer devienne point de glace au pas suivant |
| 109 |
|
! on corrige si on a un point de terre avec ou sans glace |
| 110 |
|
|
| 111 |
|
IF (indice==is_sic) THEN |
| 112 |
|
DO ig = 1, knon |
| 113 |
|
ztherm_i(ig) = iice |
| 114 |
|
IF (snow(ig)>0.0) ztherm_i(ig) = isno |
| 115 |
|
END DO |
| 116 |
|
ELSE IF (indice==is_lic) THEN |
| 117 |
|
DO ig = 1, knon |
| 118 |
|
ztherm_i(ig) = iice |
| 119 |
|
IF (snow(ig)>0.0) ztherm_i(ig) = isno |
| 120 |
|
END DO |
| 121 |
|
ELSE IF (indice==is_ter) THEN |
| 122 |
|
DO ig = 1, knon |
| 123 |
|
ztherm_i(ig) = isol |
| 124 |
|
IF (snow(ig)>0.0) ztherm_i(ig) = isno |
| 125 |
|
END DO |
| 126 |
|
ELSE IF (indice==is_oce) THEN |
| 127 |
|
DO ig = 1, knon |
| 128 |
|
ztherm_i(ig) = iice |
| 129 |
|
END DO |
| 130 |
|
ELSE |
| 131 |
|
PRINT *, 'valeur d indice non prevue', indice |
| 132 |
|
STOP 1 |
| 133 |
|
END IF |
| 134 |
|
|
| 135 |
|
|
| 136 |
|
! $$$ IF (firstcall) THEN |
| 137 |
|
IF (firstsurf(indice)) THEN |
| 138 |
|
|
| 139 |
|
! ----------------------------------------------------------------------- |
| 140 |
|
! ground levels |
| 141 |
|
! grnd=z/l where l is the skin depth of the diurnal cycle: |
| 142 |
|
! -------------------------------------------------------- |
| 143 |
|
|
| 144 |
|
min_period = 1800. ! en secondes |
| 145 |
|
dalph_soil = 2. ! rapport entre les epaisseurs de 2 couches succ. |
| 146 |
|
|
| 147 |
|
OPEN (99, FILE='soil.def', STATUS='old', FORM='formatted', ERR=9999) |
| 148 |
|
READ (99, *) min_period |
| 149 |
|
READ (99, *) dalph_soil |
| 150 |
|
PRINT *, 'Discretization for the soil model' |
| 151 |
|
PRINT *, 'First level e-folding depth', min_period, ' dalph', & |
| 152 |
|
dalph_soil |
| 153 |
|
CLOSE (99) |
| 154 |
|
9999 CONTINUE |
| 155 |
|
|
| 156 |
|
! la premiere couche represente un dixieme de cycle diurne |
| 157 |
|
fz1 = sqrt(min_period/3.14) |
| 158 |
|
|
| 159 |
|
DO jk = 1, nsoilmx |
| 160 |
|
rk1 = jk |
| 161 |
|
rk2 = jk - 1 |
| 162 |
|
dz2(jk) = fz(rk1) - fz(rk2) |
| 163 |
|
END DO |
| 164 |
|
DO jk = 1, nsoilmx - 1 |
| 165 |
|
rk1 = jk + .5 |
| 166 |
|
rk2 = jk - .5 |
| 167 |
|
dz1(jk) = 1./(fz(rk1)-fz(rk2)) |
| 168 |
|
END DO |
| 169 |
|
lambda = fz(.5)*dz1(1) |
| 170 |
|
PRINT *, 'full layers, intermediate layers (seconds)' |
| 171 |
|
DO jk = 1, nsoilmx |
| 172 |
|
rk = jk |
| 173 |
|
rk1 = jk + .5 |
| 174 |
|
rk2 = jk - .5 |
| 175 |
|
PRINT *, 'fz=', fz(rk1)*fz(rk2)*3.14, fz(rk)*fz(rk)*3.14 |
| 176 |
|
END DO |
| 177 |
|
! PB |
| 178 |
|
firstsurf(indice) = .FALSE. |
| 179 |
|
! $$$ firstcall =.false. |
| 180 |
|
|
| 181 |
|
! Initialisations: |
| 182 |
|
! ---------------- |
| 183 |
|
|
| 184 |
|
ELSE !--not firstcall |
| 185 |
|
! ----------------------------------------------------------------------- |
| 186 |
|
! Computation of the soil temperatures using the Cgrd and Dgrd |
| 187 |
|
! coefficient computed at the previous time-step: |
| 188 |
|
! ----------------------------------------------- |
| 189 |
|
|
| 190 |
|
! surface temperature |
| 191 |
|
DO ig = 1, knon |
| 192 |
|
ptsoil(ig, 1) = (lambda*zc(ig,1,indice)+ptsrf(ig))/(lambda*(1.-zd(ig,1, & |
| 193 |
|
indice))+1.) |
| 194 |
|
END DO |
| 195 |
|
|
| 196 |
|
! other temperatures |
| 197 |
|
DO jk = 1, nsoilmx - 1 |
| 198 |
|
DO ig = 1, knon |
| 199 |
|
ptsoil(ig, jk+1) = zc(ig, jk, indice) + zd(ig, jk, indice)*ptsoil(ig, & |
| 200 |
|
jk) |
| 201 |
|
END DO |
| 202 |
|
END DO |
| 203 |
|
|
| 204 |
|
END IF !--not firstcall |
| 205 |
|
! ----------------------------------------------------------------------- |
| 206 |
|
! Computation of the Cgrd and Dgrd coefficient for the next step: |
| 207 |
|
! --------------------------------------------------------------- |
| 208 |
|
|
| 209 |
|
! $$$ PB ajout pour cas glace de mer |
| 210 |
|
IF (indice==is_sic) THEN |
| 211 |
|
DO ig = 1, knon |
| 212 |
|
ptsoil(ig, nsoilmx) = rtt - 1.8 |
| 213 |
|
END DO |
| 214 |
|
END IF |
| 215 |
|
|
| 216 |
|
DO jk = 1, nsoilmx |
| 217 |
|
zdz2(jk) = dz2(jk)/ptimestep |
| 218 |
|
END DO |
| 219 |
|
|
| 220 |
|
DO ig = 1, knon |
| 221 |
|
z1(ig, indice) = zdz2(nsoilmx) + dz1(nsoilmx-1) |
| 222 |
|
zc(ig, nsoilmx-1, indice) = zdz2(nsoilmx)*ptsoil(ig, nsoilmx)/ & |
| 223 |
|
z1(ig, indice) |
| 224 |
|
zd(ig, nsoilmx-1, indice) = dz1(nsoilmx-1)/z1(ig, indice) |
| 225 |
|
END DO |
| 226 |
|
|
| 227 |
|
DO jk = nsoilmx - 1, 2, -1 |
| 228 |
|
DO ig = 1, knon |
| 229 |
|
z1(ig, indice) = 1./(zdz2(jk)+dz1(jk-1)+dz1(jk)*(1.-zd(ig,jk,indice))) |
| 230 |
|
zc(ig, jk-1, indice) = (ptsoil(ig,jk)*zdz2(jk)+dz1(jk)*zc(ig,jk,indice) & |
| 231 |
|
)*z1(ig, indice) |
| 232 |
|
zd(ig, jk-1, indice) = dz1(jk-1)*z1(ig, indice) |
| 233 |
|
END DO |
| 234 |
|
END DO |
| 235 |
|
|
| 236 |
|
! ----------------------------------------------------------------------- |
| 237 |
|
! computation of the surface diffusive flux from ground and |
| 238 |
|
! calorific capacity of the ground: |
| 239 |
|
! --------------------------------- |
| 240 |
|
|
| 241 |
|
DO ig = 1, knon |
| 242 |
|
pfluxgrd(ig) = ztherm_i(ig)*dz1(1)*(zc(ig,1,indice)+(zd(ig,1, & |
| 243 |
|
indice)-1.)*ptsoil(ig,1)) |
| 244 |
|
pcapcal(ig) = ztherm_i(ig)*(dz2(1)+ptimestep*(1.-zd(ig,1,indice))*dz1(1)) |
| 245 |
|
z1(ig, indice) = lambda*(1.-zd(ig,1,indice)) + 1. |
| 246 |
|
pcapcal(ig) = pcapcal(ig)/z1(ig, indice) |
| 247 |
|
pfluxgrd(ig) = pfluxgrd(ig) + pcapcal(ig)*(ptsoil(ig,1)*z1(ig,indice)- & |
| 248 |
|
lambda*zc(ig,1,indice)-ptsrf(ig))/ptimestep |
| 249 |
|
END DO |
| 250 |
|
|
| 251 |
|
END SUBROUTINE soil |
| 252 |
|
|
| 253 |
|
end module soil_m |
Parent Directory
| 
Revision Log
| 
Patch