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module leapfrog_m |
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|
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IMPLICIT NONE |
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|
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contains |
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|
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SUBROUTINE leapfrog(ucov, vcov, teta, ps, masse, phis, q, time_0) |
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|
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! From dyn3d/leapfrog.F, version 1.6, 2005/04/13 08:58:34 |
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! Authors: P. Le Van, L. Fairhead, F. Hourdin |
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! Matsuno-leapfrog scheme. |
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|
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use addfi_m, only: addfi |
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use bilan_dyn_m, only: bilan_dyn |
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use caladvtrac_m, only: caladvtrac |
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USE calfis_m, ONLY: calfis |
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USE com_io_dyn, ONLY: histaveid |
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USE comconst, ONLY: daysec, dtphys, dtvr |
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USE comgeom, ONLY: aire_2d, apoln, apols |
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USE comvert, ONLY: ap, bp |
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USE conf_gcm_m, ONLY: day_step, iconser, iperiod, iphysiq, nday, offline, & |
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periodav |
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USE dimens_m, ONLY: iim, jjm, llm, nqmx |
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USE dynetat0_m, ONLY: day_ini |
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use dynredem1_m, only: dynredem1 |
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USE exner_hyb_m, ONLY: exner_hyb |
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use filtreg_m, only: filtreg |
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USE guide_m, ONLY: guide |
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use inidissip_m, only: idissip |
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use integrd_m, only: integrd |
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USE logic, ONLY: iflag_phys, ok_guide |
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USE paramet_m, ONLY: ip1jmp1 |
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USE pressure_var, ONLY: p3d |
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USE temps, ONLY: itau_dyn |
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|
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! Variables dynamiques: |
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REAL, intent(inout):: ucov(ip1jmp1, llm) ! vent covariant |
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REAL, intent(inout):: vcov((iim + 1) * jjm, llm) ! vent covariant |
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REAL, intent(inout):: teta(iim + 1, jjm + 1, llm) ! potential temperature |
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REAL, intent(inout):: ps(iim + 1, jjm + 1) ! pression au sol, en Pa |
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REAL masse(ip1jmp1, llm) ! masse d'air |
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REAL phis(ip1jmp1) ! geopotentiel au sol |
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|
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REAL, intent(inout):: q(:, :, :, :) ! (iim + 1, jjm + 1, llm, nqmx) |
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! mass fractions of advected fields |
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|
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REAL, intent(in):: time_0 |
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|
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! Variables local to the procedure: |
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|
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! Variables dynamiques: |
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|
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REAL pks(ip1jmp1) ! exner au sol |
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REAL pk(iim + 1, jjm + 1, llm) ! exner au milieu des couches |
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REAL pkf(ip1jmp1, llm) ! exner filt.au milieu des couches |
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REAL phi(ip1jmp1, llm) ! geopotential |
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REAL w(ip1jmp1, llm) ! vitesse verticale |
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|
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! variables dynamiques intermediaire pour le transport |
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REAL pbaru(ip1jmp1, llm), pbarv((iim + 1) * jjm, llm) !flux de masse |
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|
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! variables dynamiques au pas - 1 |
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REAL vcovm1((iim + 1) * jjm, llm), ucovm1(ip1jmp1, llm) |
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REAL tetam1(iim + 1, jjm + 1, llm), psm1(iim + 1, jjm + 1) |
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REAL massem1(ip1jmp1, llm) |
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|
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! tendances dynamiques |
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REAL dv((iim + 1) * jjm, llm), du(ip1jmp1, llm) |
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REAL dteta(ip1jmp1, llm), dq(ip1jmp1, llm, nqmx), dp(ip1jmp1) |
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|
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! tendances de la dissipation |
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REAL dvdis((iim + 1) * jjm, llm), dudis(ip1jmp1, llm) |
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REAL dtetadis(iim + 1, jjm + 1, llm) |
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|
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! tendances physiques |
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REAL dvfi((iim + 1) * jjm, llm), dufi(ip1jmp1, llm) |
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REAL dtetafi(ip1jmp1, llm), dqfi(ip1jmp1, llm, nqmx), dpfi(ip1jmp1) |
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|
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! variables pour le fichier histoire |
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|
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INTEGER itau ! index of the time step of the dynamics, starts at 0 |
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INTEGER itaufin |
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REAL time ! time of day, as a fraction of day length |
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real finvmaold(ip1jmp1, llm) |
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INTEGER l |
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REAL rdayvrai, rdaym_ini |
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|
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! Variables test conservation energie |
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REAL ecin(iim + 1, jjm + 1, llm), ecin0(iim + 1, jjm + 1, llm) |
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! Tendance de la temp. potentiel d (theta) / d t due a la |
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! tansformation d'energie cinetique en energie thermique |
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! cree par la dissipation |
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REAL dtetaecdt(iim + 1, jjm + 1, llm) |
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REAL vcont((iim + 1) * jjm, llm), ucont(ip1jmp1, llm) |
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logical leapf |
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real dt |
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|
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!--------------------------------------------------- |
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|
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print *, "Call sequence information: leapfrog" |
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|
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itaufin = nday * day_step |
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! "day_step" is a multiple of "iperiod", therefore "itaufin" is one too |
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|
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dq = 0. |
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|
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! On initialise la pression et la fonction d'Exner : |
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forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
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CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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|
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time_integration: do itau = 0, itaufin - 1 |
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leapf = mod(itau, iperiod) /= 0 |
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if (leapf) then |
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dt = 2 * dtvr |
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else |
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! Matsuno |
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dt = dtvr |
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if (ok_guide .and. (itaufin - itau - 1) * dtvr > 21600.) & |
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call guide(itau, ucov, vcov, teta, q, masse, ps) |
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vcovm1 = vcov |
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ucovm1 = ucov |
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tetam1 = teta |
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massem1 = masse |
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psm1 = ps |
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finvmaold = masse |
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CALL filtreg(finvmaold, jjm + 1, llm, - 2, 2, .TRUE., 1) |
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end if |
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|
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! Calcul des tendances dynamiques: |
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CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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CALL caldyn(itau, ucov, vcov, teta, ps, masse, pk, pkf, phis, phi, & |
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MOD(itau, iconser) == 0, du, dv, dteta, dp, w, pbaru, pbarv, & |
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time_0) |
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|
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! Calcul des tendances advection des traceurs (dont l'humidité) |
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CALL caladvtrac(q, pbaru, pbarv, p3d, masse, dq, teta, pk) |
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|
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! Stokage du flux de masse pour traceurs offline: |
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IF (offline) CALL fluxstokenc(pbaru, pbarv, masse, teta, phi, phis, & |
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dtvr, itau) |
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|
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! integrations dynamique et traceurs: |
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CALL integrd(vcovm1, ucovm1, tetam1, psm1, massem1, dv, du, dteta, dp, & |
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vcov, ucov, teta, q(:, :, :, :2), ps, masse, finvmaold, dt, leapf) |
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|
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if (.not. leapf) then |
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! Matsuno backward |
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forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
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CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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|
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! Calcul des tendances dynamiques: |
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CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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CALL caldyn(itau + 1, ucov, vcov, teta, ps, masse, pk, pkf, phis, & |
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phi, .false., du, dv, dteta, dp, w, pbaru, pbarv, time_0) |
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|
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! integrations dynamique et traceurs: |
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CALL integrd(vcovm1, ucovm1, tetam1, psm1, massem1, dv, du, dteta, & |
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dp, vcov, ucov, teta, q(:, :, :, :2), ps, masse, finvmaold, & |
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dtvr, leapf=.false.) |
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end if |
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|
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IF (MOD(itau + 1, iphysiq) == 0 .AND. iflag_phys /= 0) THEN |
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! calcul des tendances physiques: |
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|
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forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
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CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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|
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rdaym_ini = itau * dtvr / daysec |
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rdayvrai = rdaym_ini + day_ini |
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time = REAL(mod(itau, day_step)) / day_step + time_0 |
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IF (time > 1.) time = time - 1. |
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|
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CALL calfis(rdayvrai, time, ucov, vcov, teta, q, masse, ps, pk, & |
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phis, phi, du, dv, dteta, dq, w, dufi, dvfi, dtetafi, dqfi, & |
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dpfi, lafin=itau+1==itaufin) |
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|
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! ajout des tendances physiques: |
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CALL addfi(nqmx, dtphys, ucov, vcov, teta, q, ps, dufi, dvfi, & |
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dtetafi, dqfi, dpfi) |
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ENDIF |
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|
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forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
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CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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|
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IF (MOD(itau + 1, idissip) == 0) THEN |
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! dissipation horizontale et verticale des petites echelles: |
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|
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! calcul de l'energie cinetique avant dissipation |
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call covcont(llm, ucov, vcov, ucont, vcont) |
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call enercin(vcov, ucov, vcont, ucont, ecin0) |
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|
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! dissipation |
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CALL dissip(vcov, ucov, teta, p3d, dvdis, dudis, dtetadis) |
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ucov=ucov + dudis |
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vcov=vcov + dvdis |
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|
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! On rajoute la tendance due à la transformation Ec -> E |
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! thermique créée lors de la dissipation |
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call covcont(llm, ucov, vcov, ucont, vcont) |
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call enercin(vcov, ucov, vcont, ucont, ecin) |
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dtetaecdt= (ecin0 - ecin) / pk |
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dtetadis=dtetadis + dtetaecdt |
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teta=teta + dtetadis |
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|
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! Calcul de la valeur moyenne aux pôles : |
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forall (l = 1: llm) |
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teta(:, 1, l) = SUM(aire_2d(:iim, 1) * teta(:iim, 1, l)) & |
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/ apoln |
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teta(:, jjm + 1, l) = SUM(aire_2d(:iim, jjm+1) & |
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* teta(:iim, jjm + 1, l)) / apols |
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END forall |
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|
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ps(:, 1) = SUM(aire_2d(:iim, 1) * ps(:iim, 1)) / apoln |
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ps(:, jjm + 1) = SUM(aire_2d(:iim, jjm+1) * ps(:iim, jjm + 1)) & |
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/ apols |
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END IF |
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|
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IF (MOD(itau + 1, iperiod) == 0) THEN |
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! Écriture du fichier histoire moyenne: |
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CALL writedynav(histaveid, nqmx, itau + 1, vcov, ucov, teta, pk, & |
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phi, q, masse, ps, phis) |
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call bilan_dyn(ps, masse, pk, pbaru, pbarv, teta, phi, ucov, vcov, & |
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q(:, :, :, 1), dt_app = dtvr * iperiod, & |
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dt_cum = dtvr * day_step * periodav) |
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ENDIF |
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end do time_integration |
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|
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CALL dynredem1("restart.nc", vcov, ucov, teta, q, masse, ps, & |
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itau=itau_dyn+itaufin) |
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|
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! Calcul des tendances dynamiques: |
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CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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CALL caldyn(itaufin, ucov, vcov, teta, ps, masse, pk, pkf, phis, phi, & |
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MOD(itaufin, iconser) == 0, du, dv, dteta, dp, w, pbaru, pbarv, & |
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time_0) |
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|
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END SUBROUTINE leapfrog |
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|
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end module leapfrog_m |
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