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module leapfrog_m |
module leapfrog_m |
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! This module is clean: no C preprocessor directive, no include line. |
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IMPLICIT NONE |
IMPLICIT NONE |
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contains |
contains |
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SUBROUTINE leapfrog(ucov, vcov, teta, ps, masse, phis, nq, q, clesphy0, & |
SUBROUTINE leapfrog(ucov, vcov, teta, ps, masse, phis, q, time_0) |
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time_0) |
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! From dyn3d/leapfrog.F, version 1.6 2005/04/13 08:58:34 |
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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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! Auteur: P. Le Van /L. Fairhead/F.Hourdin |
! From dyn3d/leapfrog.F, version 1.6, 2005/04/13 08:58:34 |
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! Objet: |
! Authors: P. Le Van, L. Fairhead, F. Hourdin |
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! GCM LMD nouvelle grille |
! Matsuno-leapfrog scheme. |
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! ... Dans inigeom, nouveaux calculs pour les elongations cu, cv |
use addfi_m, only: addfi |
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! et possibilite d'appeler une fonction f(y) a derivee tangente |
USE calfis_m, ONLY: calfis |
15 |
! hyperbolique a la place de la fonction a derivee sinusoidale. |
USE com_io_dyn, ONLY: histaveid |
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USE comconst, ONLY: daysec, dtphys, dtvr |
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! ... Possibilité de choisir le schéma pour l'advection de |
USE comgeom, ONLY: aire_2d, apoln, apols |
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! q, en modifiant iadv dans "traceur.def" (10/02) . |
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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! Pour Van-Leer + Vapeur d'eau saturee, iadv(1)=4. (F.Codron, 10/99) |
periodav |
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! Pour Van-Leer iadv=10 |
USE dimens_m, ONLY: iim, jjm, llm, nqmx |
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USE dynetat0_m, ONLY: day_ini |
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use dimens_m, only: iim, jjm, llm, nqmx |
use dynredem1_m, only: dynredem1 |
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use paramet_m, only: ip1jmp1, ip1jm, ijmllm, ijp1llm, jjp1, iip1, iip2 |
USE exner_hyb_m, ONLY: exner_hyb |
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use comconst, only: dtvr, daysec, dtphys |
use filtreg_m, only: filtreg |
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use comvert, only: ap, bp |
USE guide_m, ONLY: guide |
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use conf_gcm_m, only: day_step, iconser, idissip, iphysiq, iperiod, nday, & |
use inidissip_m, only: idissip |
28 |
offline, periodav |
use integrd_m, only: integrd |
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use logic, only: ok_guide, apdiss, apphys, conser, forward, iflag_phys, & |
USE logic, ONLY: iflag_phys, ok_guide |
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leapf, statcl |
USE paramet_m, ONLY: ip1jmp1 |
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use comgeom |
USE pressure_var, ONLY: p3d |
32 |
use serre |
USE temps, ONLY: itau_dyn |
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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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integer nq |
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REAL clesphy0(:) |
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! Variables dynamiques: |
! Variables dynamiques: |
35 |
REAL vcov(ip1jm, llm), ucov(ip1jmp1, llm) ! vents covariants |
REAL, intent(inout):: ucov(ip1jmp1, llm) ! vent covariant |
36 |
REAL teta(ip1jmp1, llm) ! temperature potentielle |
REAL, intent(inout):: vcov((iim + 1) * jjm, llm) ! vent covariant |
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REAL q(ip1jmp1, llm, nqmx) ! mass fractions of advected fields |
REAL, intent(inout):: teta(iim + 1, jjm + 1, llm) ! potential temperature |
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REAL ps(ip1jmp1) ! pression au sol, en Pa |
REAL ps(iim + 1, jjm + 1) ! pression au sol, en Pa |
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REAL masse(ip1jmp1, llm) ! masse d'air |
REAL masse(ip1jmp1, llm) ! masse d'air |
40 |
REAL phis(ip1jmp1) ! geopotentiel au sol |
REAL phis(ip1jmp1) ! geopotentiel au sol |
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REAL q(ip1jmp1, llm, nqmx) ! mass fractions of advected fields |
42 |
REAL time_0 |
REAL, intent(in):: time_0 |
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! Variables local to the procedure: |
! Variables local to the procedure: |
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! Variables dynamiques: |
! Variables dynamiques: |
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REAL pks(ip1jmp1) ! exner au sol |
REAL pks(ip1jmp1) ! exner au sol |
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REAL pk(ip1jmp1, llm) ! exner au milieu des couches |
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 |
REAL pkf(ip1jmp1, llm) ! exner filt.au milieu des couches |
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REAL phi(ip1jmp1, llm) ! geopotential |
REAL phi(ip1jmp1, llm) ! geopotential |
52 |
REAL w(ip1jmp1, llm) ! vitesse verticale |
REAL w(ip1jmp1, llm) ! vitesse verticale |
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! variables dynamiques intermediaire pour le transport |
! variables dynamiques intermediaire pour le transport |
55 |
REAL pbaru(ip1jmp1, llm), pbarv(ip1jm, llm) !flux de masse |
REAL pbaru(ip1jmp1, llm), pbarv((iim + 1) * jjm, llm) !flux de masse |
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! variables dynamiques au pas - 1 |
! variables dynamiques au pas - 1 |
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REAL vcovm1(ip1jm, llm), ucovm1(ip1jmp1, llm) |
REAL vcovm1((iim + 1) * jjm, llm), ucovm1(ip1jmp1, llm) |
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REAL tetam1(ip1jmp1, llm), psm1(ip1jmp1) |
REAL tetam1(iim + 1, jjm + 1, llm), psm1(iim + 1, jjm + 1) |
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REAL massem1(ip1jmp1, llm) |
REAL massem1(ip1jmp1, llm) |
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! tendances dynamiques |
! tendances dynamiques |
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REAL dv(ip1jm, llm), du(ip1jmp1, llm) |
REAL dv((iim + 1) * jjm, llm), du(ip1jmp1, llm) |
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REAL dteta(ip1jmp1, llm), dq(ip1jmp1, llm, nqmx), dp(ip1jmp1) |
REAL dteta(ip1jmp1, llm), dq(ip1jmp1, llm, nqmx), dp(ip1jmp1) |
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! tendances de la dissipation |
! tendances de la dissipation |
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REAL dvdis(ip1jm, llm), dudis(ip1jmp1, llm) |
REAL dvdis((iim + 1) * jjm, llm), dudis(ip1jmp1, llm) |
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REAL dtetadis(ip1jmp1, llm) |
REAL dtetadis(iim + 1, jjm + 1, llm) |
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! tendances physiques |
! tendances physiques |
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REAL dvfi(ip1jm, llm), dufi(ip1jmp1, llm) |
REAL dvfi((iim + 1) * jjm, llm), dufi(ip1jmp1, llm) |
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REAL dtetafi(ip1jmp1, llm), dqfi(ip1jmp1, llm, nqmx), dpfi(ip1jmp1) |
REAL dtetafi(ip1jmp1, llm), dqfi(ip1jmp1, llm, nqmx), dpfi(ip1jmp1) |
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! variables pour le fichier histoire |
! variables pour le fichier histoire |
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REAL tppn(iim), tpps(iim), tpn, tps |
INTEGER itau ! index of the time step of the dynamics, starts at 0 |
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INTEGER itaufin |
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INTEGER itau, itaufinp1 |
REAL time ! time of day, as a fraction of day length |
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INTEGER iday ! jour julien |
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REAL time ! Heure de la journee en fraction d'1 jour |
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REAL SSUM |
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real finvmaold(ip1jmp1, llm) |
real finvmaold(ip1jmp1, llm) |
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INTEGER l |
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LOGICAL :: lafin=.false. |
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INTEGER ij, l |
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REAL rdayvrai, rdaym_ini |
REAL rdayvrai, rdaym_ini |
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LOGICAL:: callinigrads = .true. |
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!+jld variables test conservation energie |
! Variables test conservation energie |
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REAL ecin(ip1jmp1, llm), ecin0(ip1jmp1, llm) |
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 |
! Tendance de la temp. potentiel d (theta) / d t due a la |
86 |
! tansformation d'energie cinetique en energie thermique |
! tansformation d'energie cinetique en energie thermique |
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! cree par la dissipation |
! cree par la dissipation |
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REAL dtetaecdt(ip1jmp1, llm) |
REAL dtetaecdt(iim + 1, jjm + 1, llm) |
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REAL vcont(ip1jm, llm), ucont(ip1jmp1, llm) |
REAL vcont((iim + 1) * jjm, llm), ucont(ip1jmp1, llm) |
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CHARACTER*15 ztit |
logical leapf |
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INTEGER:: ip_ebil_dyn = 0 ! PRINT level for energy conserv. diag. |
real dt |
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logical:: dissip_conservative = .true. |
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LOGICAL:: prem = .true. |
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!--------------------------------------------------- |
!--------------------------------------------------- |
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print *, "Call sequence information: leapfrog" |
print *, "Call sequence information: leapfrog" |
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itaufin = nday * day_step |
itaufin = nday * day_step |
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itaufinp1 = itaufin + 1 |
! "day_step" is a multiple of "iperiod", therefore "itaufin" is one too |
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itau = 0 |
dq = 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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! On initialise la pression et la fonction d'Exner : |
! On initialise la pression et la fonction d'Exner : |
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dq=0. |
forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
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CALL pression(ip1jmp1, ap, bp, ps, p3d) |
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CALL exner_hyb(ps, p3d, pks, pk, pkf) |
CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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! Debut de l'integration temporelle: |
! Début de l'integration temporelle : |
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outer_loop:do |
do itau = 0, itaufin - 1 |
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if (ok_guide.and.(itaufin - itau - 1) * dtvr > 21600) then |
leapf = mod(itau, iperiod) /= 0 |
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call guide(itau, ucov, vcov, teta, q, masse, ps) |
if (leapf) then |
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dt = 2 * dtvr |
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else |
else |
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IF (prt_level > 9) print *, & |
! Matsuno |
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'Attention : on ne guide pas les 6 dernieres heures.' |
dt = dtvr |
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endif |
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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CALL SCOPY(ijmllm, vcov, 1, vcovm1, 1) |
vcovm1 = vcov |
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CALL SCOPY(ijp1llm, ucov, 1, ucovm1, 1) |
ucovm1 = ucov |
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CALL SCOPY(ijp1llm, teta, 1, tetam1, 1) |
tetam1 = teta |
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CALL SCOPY(ijp1llm, masse, 1, massem1, 1) |
massem1 = masse |
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CALL SCOPY(ip1jmp1, ps, 1, psm1, 1) |
psm1 = ps |
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finvmaold = masse |
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forward = .TRUE. |
CALL filtreg(finvmaold, jjm + 1, llm, - 2, 2, .TRUE., 1) |
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leapf = .FALSE. |
end if |
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dt = dtvr |
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! Calcul des tendances dynamiques: |
126 |
CALL SCOPY(ijp1llm, masse, 1, finvmaold, 1) |
CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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CALL filtreg(finvmaold, jjp1, llm, - 2, 2, .TRUE., 1) |
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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do |
time_0) |
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! gestion des appels de la physique et des dissipations: |
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! Calcul des tendances advection des traceurs (dont l'humidité) |
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apphys = .FALSE. |
CALL caladvtrac(q, pbaru, pbarv, p3d, masse, dq, teta, pk) |
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statcl = .FALSE. |
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conser = .FALSE. |
! Stokage du flux de masse pour traceurs offline: |
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apdiss = .FALSE. |
IF (offline) CALL fluxstokenc(pbaru, pbarv, masse, teta, phi, phis, & |
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dtvr, itau) |
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IF (MOD(itau, iconser) == 0) conser = .TRUE. |
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IF (MOD(itau + 1, idissip) == 0) apdiss = .TRUE. |
! integrations dynamique et traceurs: |
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IF (MOD(itau + 1, iphysiq) == 0 .AND. iflag_phys /= 0) apphys=.TRUE. |
CALL integrd(2, vcovm1, ucovm1, tetam1, psm1, massem1, dv, du, dteta, & |
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dp, vcov, ucov, teta, q, ps, masse, finvmaold, leapf, dt) |
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! calcul des tendances dynamiques: |
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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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! Calcul des tendances dynamiques: |
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CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
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CALL caldyn(itau + 1, ucov, vcov, teta, ps, masse, pk, pkf, phis, & |
150 |
CALL caldyn(itau, ucov, vcov, teta, ps, masse, pk, pkf, phis, phi, & |
phi, .false., du, dv, dteta, dp, w, pbaru, pbarv, time_0) |
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conser, du, dv, dteta, dp, w, pbaru, pbarv, & |
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time + iday - day_ini) |
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! calcul des tendances advection des traceurs (dont l'humidite) |
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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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! integrations dynamique et traceurs: |
! integrations dynamique et traceurs: |
153 |
CALL integrd(2, vcovm1, ucovm1, tetam1, psm1, massem1, dv, du, & |
CALL integrd(2, vcovm1, ucovm1, tetam1, psm1, massem1, dv, du, & |
154 |
dteta, dq, dp, vcov, ucov, teta, q, ps, masse, phis, finvmaold) |
dteta, dp, vcov, ucov, teta, q, ps, masse, finvmaold, .false., & |
155 |
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dtvr) |
156 |
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end if |
157 |
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158 |
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IF (MOD(itau + 1, iphysiq) == 0 .AND. iflag_phys /= 0) THEN |
159 |
! calcul des tendances physiques: |
! calcul des tendances physiques: |
160 |
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161 |
IF (apphys) THEN |
forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
162 |
IF (itau + 1 == itaufin) lafin = .TRUE. |
CALL exner_hyb(ps, p3d, pks, pk, pkf) |
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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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rdaym_ini = itau * dtvr / daysec |
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rdayvrai = rdaym_ini + day_ini |
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164 |
! Interface avec les routines de phylmd (phymars ...) |
rdaym_ini = itau * dtvr / daysec |
165 |
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rdayvrai = rdaym_ini + day_ini |
166 |
! Diagnostique de conservation de l'énergie : initialisation |
time = REAL(mod(itau, day_step)) / day_step + time_0 |
167 |
IF (ip_ebil_dyn >= 1) THEN |
IF (time > 1.) time = time - 1. |
168 |
ztit='bil dyn' |
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169 |
CALL diagedyn(ztit, 2, 1, 1, dtphys, ucov, vcov, ps, p3d, pk, & |
CALL calfis(rdayvrai, time, ucov, vcov, teta, q, masse, ps, pk, & |
170 |
teta, q(:, :, 1), q(:, :, 2)) |
phis, phi, du, dv, dteta, dq, w, dufi, dvfi, dtetafi, dqfi, & |
171 |
ENDIF |
dpfi, lafin=itau+1==itaufin) |
172 |
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173 |
CALL calfis(nq, lafin, rdayvrai, time, ucov, vcov, teta, q, & |
! ajout des tendances physiques: |
174 |
masse, ps, pk, phis, phi, du, dv, dteta, dq, w, & |
CALL addfi(nqmx, dtphys, ucov, vcov, teta, q, ps, dufi, dvfi, & |
175 |
clesphy0, dufi, dvfi, dtetafi, dqfi, dpfi) |
dtetafi, dqfi, dpfi) |
176 |
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ENDIF |
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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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! 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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177 |
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178 |
CALL pression(ip1jmp1, ap, bp, ps, p3d) |
forall (l = 1: llm + 1) p3d(:, :, l) = ap(l) + bp(l) * ps |
179 |
CALL exner_hyb(ps, p3d, pks, pk, pkf) |
CALL exner_hyb(ps, p3d, pks, pk, pkf) |
180 |
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181 |
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IF (MOD(itau + 1, idissip) == 0) THEN |
182 |
! dissipation horizontale et verticale des petites echelles: |
! dissipation horizontale et verticale des petites echelles: |
183 |
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184 |
IF (apdiss) THEN |
! calcul de l'energie cinetique avant dissipation |
185 |
! calcul de l'energie cinetique avant dissipation |
call covcont(llm, ucov, vcov, ucont, vcont) |
186 |
call covcont(llm, ucov, vcov, ucont, vcont) |
call enercin(vcov, ucov, vcont, ucont, ecin0) |
187 |
call enercin(vcov, ucov, vcont, ucont, ecin0) |
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188 |
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! dissipation |
189 |
! dissipation |
CALL dissip(vcov, ucov, teta, p3d, dvdis, dudis, dtetadis) |
190 |
CALL dissip(vcov, ucov, teta, p3d, dvdis, dudis, dtetadis) |
ucov=ucov + dudis |
191 |
ucov=ucov + dudis |
vcov=vcov + dvdis |
192 |
vcov=vcov + dvdis |
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193 |
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! On rajoute la tendance due à la transformation Ec -> E |
194 |
if (dissip_conservative) then |
! thermique créée lors de la dissipation |
195 |
! On rajoute la tendance due a la transform. Ec -> E |
call covcont(llm, ucov, vcov, ucont, vcont) |
196 |
! therm. cree lors de la dissipation |
call enercin(vcov, ucov, vcont, ucont, ecin) |
197 |
call covcont(llm, ucov, vcov, ucont, vcont) |
dtetaecdt= (ecin0 - ecin) / pk |
198 |
call enercin(vcov, ucov, vcont, ucont, ecin) |
dtetadis=dtetadis + dtetaecdt |
199 |
dtetaecdt= (ecin0 - ecin) / pk |
teta=teta + dtetadis |
200 |
dtetadis=dtetadis + dtetaecdt |
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201 |
endif |
! Calcul de la valeur moyenne aux pôles : |
202 |
teta=teta + dtetadis |
forall (l = 1: llm) |
203 |
|
teta(:, 1, l) = SUM(aire_2d(:iim, 1) * teta(:iim, 1, l)) & |
204 |
! Calcul de la valeur moyenne, unique de h aux poles ..... |
/ apoln |
205 |
|
teta(:, jjm + 1, l) = SUM(aire_2d(:iim, jjm+1) & |
206 |
DO l = 1, llm |
* teta(:iim, jjm + 1, l)) / apols |
207 |
DO ij = 1, iim |
END forall |
208 |
tppn(ij) = aire(ij) * teta(ij, l) |
|
209 |
tpps(ij) = aire(ij + ip1jm) * teta(ij + ip1jm, l) |
ps(:, 1) = SUM(aire_2d(:iim, 1) * ps(:iim, 1)) / apoln |
210 |
ENDDO |
ps(:, jjm + 1) = SUM(aire_2d(:iim, jjm+1) * ps(:iim, jjm + 1)) & |
211 |
tpn = SSUM(iim, tppn, 1) / apoln |
/ apols |
212 |
tps = SSUM(iim, tpps, 1) / apols |
END IF |
|
|
|
|
DO ij = 1, iip1 |
|
|
teta(ij, l) = tpn |
|
|
teta(ij + ip1jm, l) = tps |
|
|
ENDDO |
|
|
ENDDO |
|
|
|
|
|
DO ij = 1, iim |
|
|
tppn(ij) = aire(ij) * ps(ij) |
|
|
tpps(ij) = aire(ij + ip1jm) * ps(ij + ip1jm) |
|
|
ENDDO |
|
|
tpn = SSUM(iim, tppn, 1) / apoln |
|
|
tps = SSUM(iim, tpps, 1) / apols |
|
|
|
|
|
DO ij = 1, iip1 |
|
|
ps(ij) = tpn |
|
|
ps(ij + ip1jm) = tps |
|
|
ENDDO |
|
|
|
|
|
END IF |
|
|
|
|
|
! fin de l'intégration dynamique et physique pour le pas "itau" |
|
|
! préparation du pas d'intégration suivant |
|
|
|
|
|
! schema matsuno + leapfrog |
|
|
IF (forward .OR. leapf) THEN |
|
|
itau = itau + 1 |
|
|
iday = day_ini + itau / day_step |
|
|
time = REAL(itau - (iday - day_ini) * day_step) / day_step & |
|
|
+ time_0 |
|
|
IF (time > 1.) THEN |
|
|
time = time - 1. |
|
|
iday = iday + 1 |
|
|
ENDIF |
|
|
ENDIF |
|
|
|
|
|
IF (itau == itaufinp1) exit outer_loop |
|
213 |
|
|
214 |
|
IF (MOD(itau + 1, iperiod) == 0) THEN |
215 |
! ecriture du fichier histoire moyenne: |
! ecriture du fichier histoire moyenne: |
216 |
|
CALL writedynav(histaveid, nqmx, itau + 1, vcov, ucov, teta, pk, & |
217 |
! Comment out the following calls when you do not want the output |
phi, q, masse, ps, phis) |
218 |
! files "dyn_hist_ave.nc" and "dynzon.nc" |
call bilan_dyn(2, dtvr * iperiod, dtvr * day_step * periodav, ps, & |
219 |
IF (MOD(itau, iperiod) == 0 .OR. itau == itaufin) THEN |
masse, pk, pbaru, pbarv, teta, phi, ucov, vcov, q) |
220 |
CALL writedynav(histaveid, nqmx, itau, vcov, & |
ENDIF |
221 |
ucov, teta, pk, phi, q, masse, ps, phis) |
end do |
222 |
call bilan_dyn(2, dtvr * iperiod, dtvr * day_step * periodav, & |
|
223 |
ps, masse, pk, pbaru, pbarv, teta, phi, ucov, vcov, q) |
CALL dynredem1("restart.nc", vcov, ucov, teta, q, masse, ps, & |
224 |
ENDIF |
itau=itau_dyn+itaufin) |
225 |
|
|
226 |
IF (itau == itaufin) THEN |
! Calcul des tendances dynamiques: |
227 |
CALL dynredem1("restart.nc", 0., vcov, ucov, teta, q, masse, ps) |
CALL geopot(ip1jmp1, teta, pk, pks, phis, phi) |
228 |
CLOSE(99) |
CALL caldyn(itaufin, ucov, vcov, teta, ps, masse, pk, pkf, phis, phi, & |
229 |
ENDIF |
MOD(itaufin, iconser) == 0, du, dv, dteta, dp, w, pbaru, pbarv, & |
230 |
|
time_0) |
|
! gestion de l'integration temporelle: |
|
|
|
|
|
IF (MOD(itau, iperiod) == 0) exit |
|
|
IF (MOD(itau - 1, iperiod) == 0) THEN |
|
|
IF (forward) THEN |
|
|
! fin du pas forward et debut du pas backward |
|
|
forward = .FALSE. |
|
|
leapf = .FALSE. |
|
|
ELSE |
|
|
! fin du pas backward et debut du premier pas leapfrog |
|
|
leapf = .TRUE. |
|
|
dt = 2. * dtvr |
|
|
END IF |
|
|
ELSE |
|
|
! ...... pas leapfrog ..... |
|
|
leapf = .TRUE. |
|
|
dt = 2. * dtvr |
|
|
END IF |
|
|
end do |
|
|
end do outer_loop |
|
231 |
|
|
232 |
END SUBROUTINE leapfrog |
END SUBROUTINE leapfrog |
233 |
|
|