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! $Header: /home/cvsroot/LMDZ4/libf/dyn3d/advz.F,v 1.2 2005/05/25 13:10:09 |
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! fairhead Exp $ |
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SUBROUTINE advz(limit, dtz, w, sm, s0, sx, sy, sz) |
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USE dimens_m |
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USE paramet_m |
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USE comconst |
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USE disvert_m |
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IMPLICIT NONE |
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|
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! CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
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! C |
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! first-order moments (FOM) advection of tracer in Z direction C |
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! C |
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! Source : Pascal Simon (Meteo,CNRM) C |
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! Adaptation : A.Armengaud (LGGE) juin 94 C |
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! C |
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! C |
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! sont des arguments d'entree pour le s-pg... C |
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! C |
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! dq est l'argument de sortie pour le s-pg C |
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! C |
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! CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC |
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|
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! parametres principaux du modele |
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|
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! Arguments : |
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! ----------- |
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! dtz : frequence fictive d'appel du transport |
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! w : flux de masse en z en Pa.m2.s-1 |
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|
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INTEGER ntra |
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PARAMETER (ntra=1) |
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|
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REAL, INTENT (IN) :: dtz |
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REAL w(iip1, jjp1, llm) |
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! moments: SM total mass in each grid box |
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! S0 mass of tracer in each grid box |
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! Si 1rst order moment in i direction |
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REAL sm(iip1, jjp1, llm), s0(iip1, jjp1, llm, ntra) |
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REAL sx(iip1, jjp1, llm, ntra), sy(iip1, jjp1, llm, ntra), & |
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sz(iip1, jjp1, llm, ntra) |
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|
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|
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! Local : |
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! ------- |
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|
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! mass fluxes across the boundaries (UGRI,VGRI,WGRI) |
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! mass fluxes in kg |
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! declaration : |
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REAL wgri(iip1, jjp1, 0:llm) |
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|
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|
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! the moments F are used as temporary storage for |
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! portions of grid boxes in transit at the current latitude |
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REAL fm(iim, llm) |
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REAL f0(iim, llm, ntra), fx(iim, llm, ntra) |
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REAL fy(iim, llm, ntra), fz(iim, llm, ntra) |
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|
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! work arrays |
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REAL alf(iim), alf1(iim), alfq(iim), alf1q(iim) |
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REAL temptm ! Just temporal variable |
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REAL sqi, sqf |
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LOGICAL limit |
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INTEGER lon, lat, niv |
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INTEGER i, j, jv, k, l, lp |
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lon = iim |
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lat = jjp1 |
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niv = llm |
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! *** Test : diag de la qqtite totale de traceur |
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! dans l'atmosphere avant l'advection en z |
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sqi = 0. |
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sqf = 0. |
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|
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DO l = 1, llm |
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DO j = 1, jjp1 |
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DO i = 1, iim |
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! IM 240305 sqi = sqi + S0(i,j,l,9) |
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sqi = sqi + s0(i, j, l, ntra) |
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END DO |
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END DO |
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END DO |
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PRINT *, '-------- DIAG DANS ADVZ - ENTREE ---------' |
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PRINT *, 'sqi=', sqi |
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! ----------------------------------------------------------------- |
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! Interface : adaptation nouveau modele |
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! ------------------------------------- |
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! Conversion du flux de masse en kg.s-1 |
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DO l = 1, llm |
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DO j = 1, jjp1 |
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DO i = 1, iip1 |
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! wgri (i,j,llm+1-l) = w (i,j,l) / g |
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wgri(i, j, llm+1-l) = w(i, j, l) |
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! wgri (i,j,0) = 0. ! a detruire ult. |
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! wgri (i,j,l) = 0.1 ! w (i,j,l) |
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! wgri (i,j,llm) = 0. ! a detruire ult. |
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END DO |
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END DO |
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END DO |
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DO j = 1, jjp1 |
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DO i = 1, iip1 |
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wgri(i, j, 0) = 0. |
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END DO |
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END DO |
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! ----------------------------------------------------------------- |
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! start here |
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! boucle sur les latitudes |
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DO k = 1, lat |
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! place limits on appropriate moments before transport |
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! (if flux-limiting is to be applied) |
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IF (.NOT. limit) GO TO 101 |
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DO jv = 1, ntra |
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DO l = 1, niv |
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DO i = 1, lon |
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sz(i, k, l, jv) = sign(amin1(amax1(s0(i,k,l,jv), & |
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0.),abs(sz(i,k,l,jv))), sz(i,k,l,jv)) |
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END DO |
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END DO |
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END DO |
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101 CONTINUE |
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! boucle sur les niveaux intercouches de 1 a NIV-1 |
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! (flux nul au sommet L=0 et a la base L=NIV) |
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! calculate flux and moments between adjacent boxes |
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! (flux from LP to L if WGRI(L).lt.0, from L to LP if WGRI(L).gt.0) |
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! 1- create temporary moments/masses for partial boxes in transit |
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! 2- reajusts moments remaining in the box |
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DO l = 1, niv - 1 |
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lp = l + 1 |
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DO i = 1, lon |
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IF (wgri(i,k,l)<0.) THEN |
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fm(i, l) = -wgri(i, k, l)*dtz |
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alf(i) = fm(i, l)/sm(i, k, lp) |
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sm(i, k, lp) = sm(i, k, lp) - fm(i, l) |
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ELSE |
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fm(i, l) = wgri(i, k, l)*dtz |
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alf(i) = fm(i, l)/sm(i, k, l) |
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sm(i, k, l) = sm(i, k, l) - fm(i, l) |
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END IF |
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alfq(i) = alf(i)*alf(i) |
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alf1(i) = 1. - alf(i) |
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alf1q(i) = alf1(i)*alf1(i) |
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END DO |
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DO jv = 1, ntra |
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DO i = 1, lon |
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IF (wgri(i,k,l)<0.) THEN |
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f0(i, l, jv) = alf(i)*(s0(i,k,lp,jv)-alf1(i)*sz(i,k,lp,jv)) |
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fz(i, l, jv) = alfq(i)*sz(i, k, lp, jv) |
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fx(i, l, jv) = alf(i)*sx(i, k, lp, jv) |
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fy(i, l, jv) = alf(i)*sy(i, k, lp, jv) |
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s0(i, k, lp, jv) = s0(i, k, lp, jv) - f0(i, l, jv) |
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sz(i, k, lp, jv) = alf1q(i)*sz(i, k, lp, jv) |
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sx(i, k, lp, jv) = sx(i, k, lp, jv) - fx(i, l, jv) |
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sy(i, k, lp, jv) = sy(i, k, lp, jv) - fy(i, l, jv) |
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ELSE |
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f0(i, l, jv) = alf(i)*(s0(i,k,l,jv)+alf1(i)*sz(i,k,l,jv)) |
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fz(i, l, jv) = alfq(i)*sz(i, k, l, jv) |
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fx(i, l, jv) = alf(i)*sx(i, k, l, jv) |
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fy(i, l, jv) = alf(i)*sy(i, k, l, jv) |
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s0(i, k, l, jv) = s0(i, k, l, jv) - f0(i, l, jv) |
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sz(i, k, l, jv) = alf1q(i)*sz(i, k, l, jv) |
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sx(i, k, l, jv) = sx(i, k, l, jv) - fx(i, l, jv) |
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sy(i, k, l, jv) = sy(i, k, l, jv) - fy(i, l, jv) |
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END IF |
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END DO |
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END DO |
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END DO |
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! puts the temporary moments Fi into appropriate neighboring boxes |
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DO l = 1, niv - 1 |
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lp = l + 1 |
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DO i = 1, lon |
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IF (wgri(i,k,l)<0.) THEN |
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sm(i, k, l) = sm(i, k, l) + fm(i, l) |
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alf(i) = fm(i, l)/sm(i, k, l) |
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ELSE |
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sm(i, k, lp) = sm(i, k, lp) + fm(i, l) |
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alf(i) = fm(i, l)/sm(i, k, lp) |
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END IF |
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alf1(i) = 1. - alf(i) |
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alfq(i) = alf(i)*alf(i) |
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alf1q(i) = alf1(i)*alf1(i) |
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END DO |
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DO jv = 1, ntra |
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DO i = 1, lon |
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IF (wgri(i,k,l)<0.) THEN |
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temptm = -alf(i)*s0(i, k, l, jv) + alf1(i)*f0(i, l, jv) |
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s0(i, k, l, jv) = s0(i, k, l, jv) + f0(i, l, jv) |
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sz(i, k, l, jv) = alf(i)*fz(i, l, jv) + alf1(i)*sz(i, k, l, jv) + & |
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3.*temptm |
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sx(i, k, l, jv) = sx(i, k, l, jv) + fx(i, l, jv) |
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sy(i, k, l, jv) = sy(i, k, l, jv) + fy(i, l, jv) |
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ELSE |
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temptm = alf(i)*s0(i, k, lp, jv) - alf1(i)*f0(i, l, jv) |
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s0(i, k, lp, jv) = s0(i, k, lp, jv) + f0(i, l, jv) |
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sz(i, k, lp, jv) = alf(i)*fz(i, l, jv) + & |
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alf1(i)*sz(i, k, lp, jv) + 3.*temptm |
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sx(i, k, lp, jv) = sx(i, k, lp, jv) + fx(i, l, jv) |
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sy(i, k, lp, jv) = sy(i, k, lp, jv) + fy(i, l, jv) |
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END IF |
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END DO |
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END DO |
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END DO |
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! fin de la boucle principale sur les latitudes |
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END DO |
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! *** ------------------- bouclage cyclique en X ------------ |
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! DO l = 1,llm |
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! DO j = 1,jjp1 |
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! SM(iip1,j,l) = SM(1,j,l) |
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! S0(iip1,j,l,ntra) = S0(1,j,l,ntra) |
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! sx(iip1,j,l,ntra) = sx(1,j,l,ntra) |
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! sy(iip1,j,l,ntra) = sy(1,j,l,ntra) |
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! sz(iip1,j,l,ntra) = sz(1,j,l,ntra) |
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! ENDDO |
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! ENDDO |
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! ------------------------------------------------------------- |
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! *** Test : diag de la qqtite totale de traceur |
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! dans l'atmosphere avant l'advection en z |
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DO l = 1, llm |
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DO j = 1, jjp1 |
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DO i = 1, iim |
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! IM 240305 sqf = sqf + S0(i,j,l,9) |
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sqf = sqf + s0(i, j, l, ntra) |
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END DO |
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END DO |
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END DO |
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PRINT *, '-------- DIAG DANS ADVZ - SORTIE ---------' |
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PRINT *, 'sqf=', sqf |
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! ------------------------------------------------------------- |
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RETURN |
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END SUBROUTINE advz |
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! _______________________________________________________________ |
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! _______________________________________________________________ |