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module clqh_m |
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IMPLICIT none |
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contains |
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SUBROUTINE clqh(dtime, jour, debut, rlat, nisurf, knindex, tsoil, qsol, & |
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rmu0, rugos, rugoro, u1lay, v1lay, coef, t, q, ts, paprs, pplay, delp, & |
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radsol, albedo, snow, qsurf, precip_rain, precip_snow, fder, fluxlat, & |
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pctsrf_new_sic, agesno, d_t, d_q, d_ts, z0_new, flux_t, flux_q, & |
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dflux_s, dflux_l, fqcalving, ffonte, run_off_lic_0) |
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! Author: Z. X. Li (LMD/CNRS) |
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! Date: 1993/08/18 |
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! Objet : diffusion verticale de "q" et de "h" |
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USE conf_phys_m, ONLY: iflag_pbl |
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USE dimphy, ONLY: klev, klon |
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USE dimsoil, ONLY: nsoilmx |
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USE interfsurf_hq_m, ONLY: interfsurf_hq |
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USE suphec_m, ONLY: rcpd, rd, rg, rkappa |
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REAL, intent(in):: dtime ! intervalle du temps (s) |
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integer, intent(in):: jour ! jour de l'annee en cours |
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logical, intent(in):: debut |
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real, intent(in):: rlat(klon) |
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integer, intent(in):: nisurf |
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integer, intent(in):: knindex(:) ! (knon) |
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REAL tsoil(klon, nsoilmx) |
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REAL, intent(inout):: qsol(klon) |
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! column-density of water in soil, in kg m-2 |
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real, intent(in):: rmu0(klon) ! cosinus de l'angle solaire zenithal |
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real rugos(klon) ! rugosite |
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REAL rugoro(klon) |
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REAL u1lay(klon) ! vitesse u de la 1ere couche (m / s) |
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REAL v1lay(klon) ! vitesse v de la 1ere couche (m / s) |
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REAL, intent(in):: coef(:, :) ! (knon, klev) |
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! Le coefficient d'echange (m**2 / s) multiplie par le cisaillement |
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! du vent (dV / dz). La premiere valeur indique la valeur de Cdrag |
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! (sans unite). |
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REAL t(klon, klev) ! temperature (K) |
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REAL q(klon, klev) ! humidite specifique (kg / kg) |
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REAL, intent(in):: ts(:) ! (knon) temperature du sol (K) |
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REAL paprs(klon, klev+1) ! pression a inter-couche (Pa) |
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REAL pplay(klon, klev) ! pression au milieu de couche (Pa) |
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REAL delp(klon, klev) ! epaisseur de couche en pression (Pa) |
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REAL radsol(klon) ! ray. net au sol (Solaire+IR) W / m2 |
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REAL, intent(inout):: albedo(:) ! (knon) albedo de la surface |
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REAL, intent(inout):: snow(klon) ! hauteur de neige |
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REAL qsurf(klon) ! humidite de l'air au dessus de la surface |
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real, intent(in):: precip_rain(klon) |
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! liquid water mass flux (kg / m2 / s), positive down |
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real, intent(in):: precip_snow(klon) |
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! solid water mass flux (kg / m2 / s), positive down |
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real, intent(inout):: fder(klon) |
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real fluxlat(klon) |
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real, intent(in):: pctsrf_new_sic(:) ! (klon) |
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REAL, intent(inout):: agesno(:) ! (knon) |
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REAL d_t(klon, klev) ! incrementation de "t" |
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REAL d_q(klon, klev) ! incrementation de "q" |
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REAL, intent(out):: d_ts(:) ! (knon) incr\'ementation de "ts" |
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real z0_new(klon) |
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REAL, intent(out):: flux_t(:) ! (knon) |
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! (diagnostic) flux de chaleur sensible (Cp T) à la surface, |
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! positif vers le bas, W / m2 |
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REAL, intent(out):: flux_q(:) ! (knon) |
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! flux de la vapeur d'eau à la surface, en kg / (m**2 s) |
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REAL dflux_s(klon) ! derivee du flux sensible dF / dTs |
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REAL dflux_l(klon) ! derivee du flux latent dF / dTs |
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! Flux d'eau "perdue" par la surface et n\'ecessaire pour que limiter la |
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! hauteur de neige, en kg / m2 / s |
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REAL fqcalving(klon) |
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! Flux thermique utiliser pour fondre la neige |
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REAL ffonte(klon) |
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REAL run_off_lic_0(klon)! runof glacier au pas de temps precedent |
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! Local: |
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INTEGER knon |
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REAL evap(size(knindex)) ! (knon) evaporation au sol |
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INTEGER i, k |
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REAL zx_cq(klon, klev) |
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REAL zx_dq(klon, klev) |
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REAL zx_ch(klon, klev) |
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REAL zx_dh(klon, klev) |
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REAL zx_buf1(klon) |
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REAL zx_buf2(klon) |
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REAL zx_coef(klon, klev) |
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REAL local_h(klon, klev) ! enthalpie potentielle |
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REAL local_q(klon, klev) |
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REAL psref(klon) ! pression de reference pour temperature potent. |
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REAL zx_pkh(klon, klev), zx_pkf(klon, klev) |
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! contre-gradient pour la vapeur d'eau: (kg / kg) / metre |
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REAL gamq(klon, 2:klev) |
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! contre-gradient pour la chaleur sensible: Kelvin / metre |
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REAL gamt(klon, 2:klev) |
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REAL z_gamaq(klon, 2:klev), z_gamah(klon, 2:klev) |
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REAL zdelz |
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real temp_air(klon), spechum(klon) |
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real tq_cdrag(klon), petAcoef(klon), peqAcoef(klon) |
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real petBcoef(klon), peqBcoef(klon) |
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real p1lay(klon) |
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real tsurf_new(size(knindex)) ! (knon) |
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real zzpk |
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!---------------------------------------------------------------- |
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knon = size(knindex) |
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if (iflag_pbl == 1) then |
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do k = 3, klev |
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do i = 1, knon |
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gamq(i, k)= 0.0 |
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gamt(i, k)= - 1.0e-03 |
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enddo |
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enddo |
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do i = 1, knon |
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gamq(i, 2) = 0.0 |
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gamt(i, 2) = - 2.5e-03 |
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enddo |
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else |
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do k = 2, klev |
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do i = 1, knon |
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gamq(i, k) = 0.0 |
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gamt(i, k) = 0.0 |
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enddo |
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enddo |
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endif |
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DO i = 1, knon |
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psref(i) = paprs(i, 1) !pression de reference est celle au sol |
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ENDDO |
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DO k = 1, klev |
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DO i = 1, knon |
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zx_pkh(i, k) = (psref(i) / paprs(i, k))**RKAPPA |
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zx_pkf(i, k) = (psref(i) / pplay(i, k))**RKAPPA |
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local_h(i, k) = RCPD * t(i, k) * zx_pkf(i, k) |
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local_q(i, k) = q(i, k) |
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ENDDO |
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ENDDO |
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! Convertir les coefficients en variables convenables au calcul: |
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DO k = 2, klev |
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DO i = 1, knon |
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zx_coef(i, k) = coef(i, k) * RG / (pplay(i, k - 1) - pplay(i, k)) & |
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* (paprs(i, k) * 2 / (t(i, k)+t(i, k - 1)) / RD)**2 |
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zx_coef(i, k) = zx_coef(i, k) * dtime * RG |
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ENDDO |
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ENDDO |
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! Preparer les flux lies aux contre-gardients |
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DO k = 2, klev |
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DO i = 1, knon |
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zdelz = RD * (t(i, k - 1)+t(i, k)) / 2.0 / RG / paprs(i, k) & |
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* (pplay(i, k - 1) - pplay(i, k)) |
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z_gamaq(i, k) = gamq(i, k) * zdelz |
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z_gamah(i, k) = gamt(i, k) * zdelz * RCPD * zx_pkh(i, k) |
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ENDDO |
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ENDDO |
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DO i = 1, knon |
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zx_buf1(i) = zx_coef(i, klev) + delp(i, klev) |
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zx_cq(i, klev) = (local_q(i, klev) * delp(i, klev) & |
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- zx_coef(i, klev) * z_gamaq(i, klev)) / zx_buf1(i) |
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zx_dq(i, klev) = zx_coef(i, klev) / zx_buf1(i) |
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zzpk=(pplay(i, klev) / psref(i))**RKAPPA |
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zx_buf2(i) = zzpk * delp(i, klev) + zx_coef(i, klev) |
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zx_ch(i, klev) = (local_h(i, klev) * zzpk * delp(i, klev) & |
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- zx_coef(i, klev) * z_gamah(i, klev)) / zx_buf2(i) |
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zx_dh(i, klev) = zx_coef(i, klev) / zx_buf2(i) |
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ENDDO |
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DO k = klev - 1, 2, - 1 |
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DO i = 1, knon |
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zx_buf1(i) = delp(i, k)+zx_coef(i, k) & |
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+zx_coef(i, k+1) * (1. - zx_dq(i, k+1)) |
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zx_cq(i, k) = (local_q(i, k) * delp(i, k) & |
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+zx_coef(i, k+1) * zx_cq(i, k+1) & |
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+zx_coef(i, k+1) * z_gamaq(i, k+1) & |
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- zx_coef(i, k) * z_gamaq(i, k)) / zx_buf1(i) |
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guez |
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zx_dq(i, k) = zx_coef(i, k) / zx_buf1(i) |
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guez |
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zzpk=(pplay(i, k) / psref(i))**RKAPPA |
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zx_buf2(i) = zzpk * delp(i, k)+zx_coef(i, k) & |
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+zx_coef(i, k+1) * (1. - zx_dh(i, k+1)) |
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zx_ch(i, k) = (local_h(i, k) * zzpk * delp(i, k) & |
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+zx_coef(i, k+1) * zx_ch(i, k+1) & |
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+zx_coef(i, k+1) * z_gamah(i, k+1) & |
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- zx_coef(i, k) * z_gamah(i, k)) / zx_buf2(i) |
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zx_dh(i, k) = zx_coef(i, k) / zx_buf2(i) |
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ENDDO |
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ENDDO |
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DO i = 1, knon |
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zx_buf1(i) = delp(i, 1) + zx_coef(i, 2) * (1. - zx_dq(i, 2)) |
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zx_cq(i, 1) = (local_q(i, 1) * delp(i, 1) & |
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+zx_coef(i, 2) * (z_gamaq(i, 2)+zx_cq(i, 2))) & |
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guez |
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/ zx_buf1(i) |
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zx_dq(i, 1) = - 1. * RG / zx_buf1(i) |
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guez |
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guez |
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zzpk=(pplay(i, 1) / psref(i))**RKAPPA |
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guez |
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zx_buf2(i) = zzpk * delp(i, 1) + zx_coef(i, 2) * (1. - zx_dh(i, 2)) |
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zx_ch(i, 1) = (local_h(i, 1) * zzpk * delp(i, 1) & |
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+zx_coef(i, 2) * (z_gamah(i, 2)+zx_ch(i, 2))) & |
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guez |
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/ zx_buf2(i) |
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zx_dh(i, 1) = - 1. * RG / zx_buf2(i) |
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guez |
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ENDDO |
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! Appel a interfsurf (appel generique) routine d'interface avec la surface |
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! initialisation |
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petAcoef =0. |
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peqAcoef = 0. |
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petBcoef =0. |
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peqBcoef = 0. |
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p1lay =0. |
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petAcoef(1:knon) = zx_ch(1:knon, 1) |
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peqAcoef(1:knon) = zx_cq(1:knon, 1) |
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guez |
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petBcoef(1:knon) = zx_dh(1:knon, 1) |
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guez |
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peqBcoef(1:knon) = zx_dq(1:knon, 1) |
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guez |
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tq_cdrag(1:knon) =coef(:knon, 1) |
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guez |
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temp_air(1:knon) =t(1:knon, 1) |
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spechum(1:knon)=q(1:knon, 1) |
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p1lay(1:knon) = pplay(1:knon, 1) |
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guez |
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CALL interfsurf_hq(dtime, jour, rmu0, nisurf, knon, knindex, rlat, debut, & |
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nsoilmx, tsoil, qsol, u1lay, v1lay, temp_air, spechum, tq_cdrag, & |
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petAcoef, peqAcoef, petBcoef, peqBcoef, precip_rain, precip_snow, & |
| 249 |
guez |
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fder, rugos, rugoro, snow, qsurf, ts, p1lay, psref, radsol, & |
| 250 |
guez |
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evap, flux_t, fluxlat, dflux_l, dflux_s, tsurf_new, albedo, & |
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guez |
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z0_new, pctsrf_new_sic, agesno, fqcalving, ffonte, run_off_lic_0) |
| 252 |
guez |
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guez |
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flux_q = - evap |
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guez |
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d_ts = tsurf_new - ts |
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guez |
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!==== une fois on a zx_h_ts, on peut faire l'iteration ======== |
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DO i = 1, knon |
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guez |
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local_h(i, 1) = zx_ch(i, 1) + zx_dh(i, 1) * flux_t(i) * dtime |
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local_q(i, 1) = zx_cq(i, 1) + zx_dq(i, 1) * flux_q(i) * dtime |
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guez |
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ENDDO |
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DO k = 2, klev |
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DO i = 1, knon |
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guez |
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local_q(i, k) = zx_cq(i, k) + zx_dq(i, k) * local_q(i, k - 1) |
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local_h(i, k) = zx_ch(i, k) + zx_dh(i, k) * local_h(i, k - 1) |
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guez |
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ENDDO |
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ENDDO |
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guez |
155 |
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guez |
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! Calcul tendances |
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DO k = 1, klev |
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DO i = 1, knon |
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guez |
155 |
d_t(i, k) = local_h(i, k) / zx_pkf(i, k) / RCPD - t(i, k) |
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guez |
49 |
d_q(i, k) = local_q(i, k) - q(i, k) |
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ENDDO |
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ENDDO |
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END SUBROUTINE clqh |
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| 278 |
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end module clqh_m |
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