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module leapfrog_m |
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! This module is clean: no C preprocessor directive, no include line. |
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IMPLICIT NONE |
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|
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contains |
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SUBROUTINE leapfrog(ucov, vcov, teta, ps, masse, phis, nq, q, time_0) |
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! From dyn3d/leapfrog.F, version 1.6 2005/04/13 08:58:34 |
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|
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! Version du 10/01/98, avec coordonnees verticales hybrides, avec |
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! nouveaux operat. dissipation * (gradiv2, divgrad2, nxgraro2) |
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|
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! Auteur: P. Le Van /L. Fairhead/F.Hourdin |
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! Objet: |
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! GCM LMD nouvelle grille |
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|
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! ... Dans inigeom, nouveaux calculs pour les elongations cu, cv |
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! et possibilite d'appeler une fonction f(y) a derivee tangente |
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! hyperbolique a la place de la fonction a derivee sinusoidale. |
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|
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! ... Possibilité de choisir le schéma pour l'advection de |
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! q, en modifiant iadv dans "traceur.def" (10/02) . |
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|
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! Pour Van-Leer + Vapeur d'eau saturee, iadv(1)=4. (F.Codron, 10/99) |
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! Pour Van-Leer iadv=10 |
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|
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use dimens_m, only: iim, jjm, llm, nqmx |
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use paramet_m, only: ip1jmp1, ip1jm, ijmllm, ijp1llm, jjp1, iip1, iip2 |
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use comconst, only: dtvr, daysec, dtphys |
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use comvert, only: ap, bp |
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use conf_gcm_m, only: day_step, iconser, idissip, iphysiq, iperiod, nday, & |
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offline, periodav |
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use logic, only: ok_guide, iflag_phys |
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use comgeom |
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use serre |
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use temps, only: itaufin, day_ini, dt |
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use iniprint, only: prt_level |
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use com_io_dyn |
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use ener |
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use calfis_m, only: calfis |
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use exner_hyb_m, only: exner_hyb |
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use guide_m, only: guide |
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use pression_m, only: pression |
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use pressure_var, only: p3d |
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|
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integer, intent(in):: nq |
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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 q(ip1jmp1, llm, nqmx) ! mass fractions of advected fields |
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REAL ps(ip1jmp1) ! 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 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 itaufinp1 |
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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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|
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REAL SSUM |
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real finvmaold(ip1jmp1, llm) |
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|
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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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LOGICAL:: callinigrads = .true. |
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|
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!+jld 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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CHARACTER*15 ztit |
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INTEGER:: ip_ebil_dyn = 0 ! PRINT level for energy conserv. diag. |
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|
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logical:: dissip_conservative = .true. |
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LOGICAL:: prem = .true. |
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logical forward, leapf, apphys, conser, apdiss |
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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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itaufinp1 = itaufin + 1 |
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itau = 0 |
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iday = day_ini |
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time = 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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|
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! On initialise la pression et la fonction d'Exner : |
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dq=0. |
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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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! Debut de l'integration temporelle: |
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outer_loop:do |
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if (ok_guide.and.(itaufin - itau - 1) * dtvr > 21600) then |
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call guide(itau, ucov, vcov, teta, q, masse, ps) |
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else |
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IF (prt_level > 9) print *, & |
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'Attention : on ne guide pas les 6 dernieres heures.' |
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endif |
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|
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CALL SCOPY(ijmllm, vcov, 1, vcovm1, 1) |
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CALL SCOPY(ijp1llm, ucov, 1, ucovm1, 1) |
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CALL SCOPY(ijp1llm, teta, 1, tetam1, 1) |
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CALL SCOPY(ijp1llm, masse, 1, massem1, 1) |
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CALL SCOPY(ip1jmp1, ps, 1, psm1, 1) |
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forward = .TRUE. |
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leapf = .FALSE. |
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dt = dtvr |
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CALL SCOPY(ijp1llm, masse, 1, finvmaold, 1) |
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CALL filtreg(finvmaold, jjp1, llm, - 2, 2, .TRUE., 1) |
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do |
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! gestion des appels de la physique et des dissipations: |
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apphys = .FALSE. |
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conser = .FALSE. |
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apdiss = .FALSE. |
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IF (MOD(itau, iconser) == 0) conser = .TRUE. |
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IF (MOD(itau + 1, idissip) == 0) apdiss = .TRUE. |
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IF (MOD(itau + 1, iphysiq) == 0 .AND. iflag_phys /= 0) apphys=.TRUE. |
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|
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! calcul des tendances dynamiques: |
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|
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CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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|
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CALL caldyn(itau, ucov, vcov, teta, ps, masse, pk, pkf, phis, phi, & |
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conser, du, dv, dteta, dp, w, pbaru, pbarv, & |
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time + iday - day_ini) |
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|
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! calcul des tendances advection des traceurs (dont l'humidite) |
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|
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IF (forward .OR. leapf) THEN |
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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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!maf 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) |
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! calcul des tendances physiques: |
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|
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IF (apphys) THEN |
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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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! Interface avec les routines de phylmd (phymars ...) |
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|
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! Diagnostique de conservation de l'énergie : initialisation |
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IF (ip_ebil_dyn >= 1) THEN |
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ztit='bil dyn' |
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CALL diagedyn(ztit, 2, 1, 1, dtphys, ucov, vcov, ps, p3d, pk, & |
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teta, q(:, :, 1), q(:, :, 2)) |
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ENDIF |
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|
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CALL calfis(nq, 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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|
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! Diagnostique de conservation de l'énergie : difference |
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IF (ip_ebil_dyn >= 1) THEN |
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ztit = 'bil phys' |
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CALL diagedyn(ztit, 2, 1, 1, dtphys, ucov, vcov, ps, p3d, pk, & |
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teta, q(:, :, 1), q(:, :, 2)) |
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ENDIF |
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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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! dissipation horizontale et verticale des petites echelles: |
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|
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IF (apdiss) THEN |
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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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if (dissip_conservative) then |
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! On rajoute la tendance due a la transform. Ec -> E |
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! therm. cree 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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endif |
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teta=teta + dtetadis |
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|
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! Calcul de la valeur moyenne, unique de h aux poles ..... |
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|
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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 = SSUM(iim, tppn, 1) / apoln |
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tps = SSUM(iim, tpps, 1) / 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 = SSUM(iim, tppn, 1) / apoln |
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tps = SSUM(iim, tpps, 1) / 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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|
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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 == itaufinp1) exit outer_loop |
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|
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! ecriture du fichier histoire moyenne: |
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|
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! Comment out the following calls when you do not want the output |
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! files "dyn_hist_ave.nc" and "dynzon.nc" |
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IF (MOD(itau, iperiod) == 0 .OR. itau == itaufin) THEN |
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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", 0., vcov, ucov, teta, q, masse, ps) |
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CLOSE(99) |
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ENDIF |
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|
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! gestion de l'integration temporelle: |
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|
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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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