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module leapfrog_m |
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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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! 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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|
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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, 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, 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 logic, ONLY: iflag_phys, ok_guide |
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USE paramet_m, ONLY: iip1, ip1jm, ip1jmp1, jjp1 |
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USE pression_m, ONLY: pression |
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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 vcov(ip1jm, llm), ucov(ip1jmp1, llm) ! vents covariants |
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REAL teta(ip1jmp1, llm) ! temperature potentielle |
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REAL ps(ip1jmp1) ! pression au sol, en Pa |
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|
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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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REAL q(ip1jmp1, llm, nqmx) ! mass fractions of advected fields |
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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(ip1jmp1, 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(ip1jm, llm) !flux de masse |
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|
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! variables dynamiques au pas - 1 |
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REAL vcovm1(ip1jm, llm), ucovm1(ip1jmp1, llm) |
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REAL tetam1(ip1jmp1, llm), psm1(ip1jmp1) |
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REAL massem1(ip1jmp1, llm) |
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|
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! tendances dynamiques |
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REAL dv(ip1jm, 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(ip1jm, llm), dudis(ip1jmp1, llm) |
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REAL dtetadis(ip1jmp1, llm) |
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|
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! tendances physiques |
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REAL dvfi(ip1jm, 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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REAL tppn(iim), tpps(iim), tpn, tps |
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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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INTEGER iday ! jour julien |
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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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LOGICAL:: lafin=.false. |
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INTEGER ij, l |
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|
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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(ip1jmp1, llm), ecin0(ip1jmp1, 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(ip1jmp1, llm) |
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REAL vcont(ip1jm, llm), ucont(ip1jmp1, llm) |
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logical forward, 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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itau = 0 |
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iday = day_ini |
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time = time_0 |
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dq = 0. |
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! On initialise la pression et la fonction d'Exner : |
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CALL pression(ip1jmp1, ap, bp, ps, p3d) |
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CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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|
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! Début de l'integration temporelle : |
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outer_loop:do |
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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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forward = .TRUE. |
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leapf = .FALSE. |
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dt = dtvr |
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finvmaold = masse |
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CALL filtreg(finvmaold, jjp1, llm, - 2, 2, .TRUE., 1) |
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|
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do |
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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 + iday - day_ini) |
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|
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IF (forward .OR. leapf) THEN |
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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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IF (offline) THEN |
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! Stokage du flux de masse pour traceurs off-line |
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CALL fluxstokenc(pbaru, pbarv, masse, teta, phi, phis, dtvr, & |
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itau) |
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ENDIF |
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ENDIF |
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|
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! integrations dynamique et traceurs: |
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CALL integrd(2, vcovm1, ucovm1, tetam1, psm1, massem1, dv, du, & |
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dteta, dq, dp, vcov, ucov, teta, q, ps, masse, phis, & |
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finvmaold, leapf, dt) |
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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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IF (itau + 1 == itaufin) lafin = .TRUE. |
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|
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CALL pression(ip1jmp1, ap, bp, ps, p3d) |
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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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|
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CALL calfis(nqmx, lafin, rdayvrai, time, ucov, vcov, teta, q, & |
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masse, ps, pk, phis, phi, du, dv, dteta, dq, w, & |
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dufi, dvfi, dtetafi, dqfi, dpfi) |
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|
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! ajout des tendances physiques: |
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CALL addfi(nqmx, dtphys, & |
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ucov, vcov, teta, q, ps, & |
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dufi, dvfi, dtetafi, dqfi, dpfi) |
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ENDIF |
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|
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CALL pression(ip1jmp1, ap, bp, ps, p3d) |
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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 unique de h aux pôles |
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DO l = 1, llm |
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DO ij = 1, iim |
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tppn(ij) = aire(ij) * teta(ij, l) |
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tpps(ij) = aire(ij + ip1jm) * teta(ij + ip1jm, l) |
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ENDDO |
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tpn = SUM(tppn) / apoln |
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tps = SUM(tpps) / apols |
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|
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DO ij = 1, iip1 |
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teta(ij, l) = tpn |
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teta(ij + ip1jm, l) = tps |
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ENDDO |
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ENDDO |
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|
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DO ij = 1, iim |
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tppn(ij) = aire(ij) * ps(ij) |
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tpps(ij) = aire(ij + ip1jm) * ps(ij + ip1jm) |
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ENDDO |
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tpn = SUM(tppn) / apoln |
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tps = SUM(tpps) / apols |
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|
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DO ij = 1, iip1 |
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ps(ij) = tpn |
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ps(ij + ip1jm) = tps |
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ENDDO |
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END IF |
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|
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! fin de l'intégration dynamique et physique pour le pas "itau" |
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! préparation du pas d'intégration suivant |
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|
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! schema matsuno + leapfrog |
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IF (forward .OR. leapf) THEN |
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itau = itau + 1 |
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iday = day_ini + itau / day_step |
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time = REAL(itau - (iday - day_ini) * day_step) / day_step & |
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+ time_0 |
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IF (time > 1.) THEN |
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time = time - 1. |
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iday = iday + 1 |
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ENDIF |
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ENDIF |
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|
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IF (itau == itaufin + 1) exit outer_loop |
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|
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IF (MOD(itau, iperiod) == 0 .OR. itau == itaufin) THEN |
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! ecriture du fichier histoire moyenne: |
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CALL writedynav(histaveid, nqmx, itau, vcov, & |
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ucov, teta, pk, phi, q, masse, ps, phis) |
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call bilan_dyn(2, dtvr * iperiod, dtvr * day_step * periodav, & |
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ps, masse, pk, pbaru, pbarv, teta, phi, ucov, vcov, q) |
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ENDIF |
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|
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IF (itau == itaufin) THEN |
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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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ENDIF |
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|
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! gestion de l'integration temporelle: |
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IF (MOD(itau, iperiod) == 0) exit |
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IF (MOD(itau - 1, iperiod) == 0) THEN |
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IF (forward) THEN |
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! fin du pas forward et debut du pas backward |
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forward = .FALSE. |
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leapf = .FALSE. |
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ELSE |
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! fin du pas backward et debut du premier pas leapfrog |
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leapf = .TRUE. |
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dt = 2. * dtvr |
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END IF |
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ELSE |
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! pas leapfrog |
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leapf = .TRUE. |
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dt = 2. * dtvr |
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END IF |
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end do |
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end do outer_loop |
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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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