--- trunk/libf/dyn3d/guide.f90 2008/10/15 16:19:57 20 +++ trunk/Sources/dyn3d/Guide/guide.f 2015/05/26 17:46:03 139 @@ -1,529 +1,243 @@ MODULE guide_m - ! From dyn3d/guide.F, v 1.3 2005/05/25 13:10:09 - ! and dyn3d/guide.h, v 1.1.1.1 2004/05/19 12:53:06 + ! From dyn3d/guide.F, version 1.3 2005/05/25 13:10:09 + ! and dyn3d/guide.h, version 1.1.1.1 2004/05/19 12:53:06 - REAL :: tau_min_u, tau_max_u - REAL :: tau_min_v, tau_max_v - REAL :: tau_min_t, tau_max_t - REAL :: tau_min_q, tau_max_q - REAL :: tau_min_p, tau_max_p - REAL :: aire_min, aire_max - - - LOGICAL :: guide_u, guide_v, guide_t, guide_q, guide_p - REAL :: lat_min_guide, lat_max_guide - - LOGICAL :: ncep, ini_anal - INTEGER :: online + IMPLICIT NONE CONTAINS -SUBROUTINE guide(itau, ucov, vcov, teta, q, masse, ps) + SUBROUTINE guide(itau, ucov, vcov, teta, q, ps) - USE dimens_m, ONLY : jjm, llm - USE paramet_m, ONLY : iip1, ip1jm, ip1jmp1, jjp1, llmp1 - USE comconst, ONLY : cpp, daysec, dtvr, kappa, pi - USE comvert, ONLY : ap, bp, preff, presnivs - USE conf_gcm_m, ONLY : day_step, iperiod - USE comgeom, ONLY : aire, rlatu, rlonv - USE serre, ONLY : clat, clon - USE q_sat_m, ONLY : q_sat - USE exner_hyb_m, ONLY : exner_hyb - USE pression_m, ONLY : pression - USE inigrads_m, ONLY : inigrads - use netcdf, only: nf90_nowrite, nf90_open, nf90_close + ! Author: F.Hourdin - IMPLICIT NONE - INCLUDE 'netcdf.inc' + USE comconst, ONLY: cpp, kappa + USE conf_gcm_m, ONLY: day_step + use conf_guide_m, only: guide_u, guide_v, guide_t, guide_q, ncep, & + ini_anal, tau_min_u, tau_max_u, tau_min_v, tau_max_v, tau_min_t, & + tau_max_t, tau_min_q, tau_max_q, online, factt + USE dimens_m, ONLY: iim, jjm, llm + USE disvert_m, ONLY: ap, bp, preff + use dynetat0_m, only: grossismx, grossismy, rlatu, rlatv + USE exner_hyb_m, ONLY: exner_hyb + use init_tau2alpha_m, only: init_tau2alpha + use netcdf, only: nf90_nowrite + use netcdf95, only: nf95_close, nf95_inq_dimid, nf95_inquire_dimension, & + nf95_open + use nr_util, only: pi + USE paramet_m, ONLY: iip1, ip1jmp1, jjp1, llmp1 + USE q_sat_m, ONLY: q_sat + use read_reanalyse_m, only: read_reanalyse + use tau2alpha_m, only: tau2alpha + use writefield_m, only: writefield + + INTEGER, INTENT(IN):: itau + REAL, intent(inout):: ucov(:, :, :) ! (iim + 1, jjm + 1, llm) vent covariant + REAL, intent(inout):: vcov(:, :, :) ! (iim + 1, jjm, llm) ! vent covariant + + REAL, intent(inout):: teta(:, :, :) ! (iim + 1, jjm + 1, llm) + ! température potentielle + + REAL, intent(inout):: q(:, :, :) ! (iim + 1, jjm + 1, llm) + REAL, intent(in):: ps(:, :) ! (iim + 1, jjm + 1) pression au sol + + ! Local: + + ! variables dynamiques pour les réanalyses + + REAL, save:: ucovrea1(iim + 1, jjm + 1, llm), vcovrea1(iim + 1, jjm, llm) + ! vents covariants reanalyses + + REAL, save:: tetarea1(iim + 1, jjm + 1, llm) ! temp pot reales + REAL, save:: qrea1(iim + 1, jjm + 1, llm) ! temp pot reales + + REAL, save:: ucovrea2(iim + 1, jjm + 1, llm), vcovrea2(iim + 1, jjm, llm) + ! vents covariants reanalyses + + REAL, save:: tetarea2(iim + 1, jjm + 1, llm) ! temp pot reales + REAL, save:: qrea2(iim + 1, jjm + 1, llm) ! temp pot reales + REAL, save:: masserea2(ip1jmp1, llm) ! masse + + ! alpha détermine la part des injections de données à chaque étape + ! alpha=0 signifie pas d'injection + ! alpha=1 signifie injection totale + REAL, save:: alpha_q(iim + 1, jjm + 1) + REAL, save:: alpha_t(iim + 1, jjm + 1) + REAL, save:: alpha_u(iim + 1, jjm + 1), alpha_v(iim + 1, jjm) + + INTEGER, save:: step_rea, count_no_rea + + INTEGER l + INTEGER ncid, dimid + REAL tau + INTEGER, SAVE:: nlev + + ! TEST SUR QSAT + REAL p(iim + 1, jjm + 1, llmp1) + real pk(iim + 1, jjm + 1, llm), pks(iim + 1, jjm + 1) + REAL qsat(iim + 1, jjm + 1, llm) + + REAL dxdys(iip1, jjp1), dxdyu(iip1, jjp1), dxdyv(iip1, jjm) + + !----------------------------------------------------------------------- + + !!PRINT *, 'Call sequence information: guide' + + first_call: IF (itau == 0) THEN + IF (online) THEN + IF (abs(grossismx - 1.) < 0.1 .OR. abs(grossismy - 1.) < 0.1) THEN + ! grille regulière + if (guide_u) alpha_u = factt / tau_max_u + if (guide_v) alpha_v = factt / tau_max_v + if (guide_t) alpha_t = factt / tau_max_t + if (guide_q) alpha_q = factt / tau_max_q + else + call init_tau2alpha(dxdys, dxdyu, dxdyv) + + if (guide_u) then + CALL tau2alpha(dxdyu, rlatu, tau_min_u, tau_max_u, alpha_u) + CALL writefield("alpha_u", alpha_u) + end if + + if (guide_v) then + CALL tau2alpha(dxdyv, rlatv, tau_min_v, tau_max_v, alpha_v) + CALL writefield("alpha_v", alpha_v) + end if + + if (guide_t) then + CALL tau2alpha(dxdys, rlatu, tau_min_t, tau_max_t, alpha_t) + CALL writefield("alpha_t", alpha_t) + end if + + if (guide_q) then + CALL tau2alpha(dxdys, rlatu, tau_min_q, tau_max_q, alpha_q) + CALL writefield("alpha_q", alpha_q) + end if + end IF + ELSE + ! Cas où on force exactement par les variables analysées + if (guide_u) alpha_u = 1. + if (guide_v) alpha_v = 1. + if (guide_t) alpha_t = 1. + if (guide_q) alpha_q = 1. + END IF - ! ...... Version du 10/01/98 .......... + step_rea = 1 + count_no_rea = 0 - ! avec coordonnees verticales hybrides - ! avec nouveaux operat. dissipation * ( gradiv2, divgrad2, nxgraro2 ) + ! lecture d'un fichier netcdf pour determiner le nombre de niveaux : - !======================================================================= + if (guide_u) then + call nf95_open('u.nc',Nf90_NOWRITe,ncid) + else if (guide_v) then + call nf95_open('v.nc',nf90_nowrite,ncid) + else if (guide_T) then + call nf95_open('T.nc',nf90_nowrite,ncid) + else + call nf95_open('hur.nc',nf90_nowrite, ncid) + end if - ! Auteur: F.Hourdin - ! ------- - - ! Objet: - ! ------ - - ! GCM LMD nouvelle grille - - !======================================================================= - - ! ... Dans inigeom , nouveaux calculs pour les elongations cu , cv - ! et possibilite d'appeler une fonction f(y) a derivee tangente - ! hyperbolique a la place de la fonction a derivee sinusoidale. - - ! ... Possibilite de choisir le shema de Van-leer pour l'advection de - ! q , en faisant iadv = 10 dans traceur (29/04/97) . - - !----------------------------------------------------------------------- - ! Declarations: - ! ------------- - - - ! variables dynamiques - REAL :: vcov(ip1jm, llm), ucov(ip1jmp1, llm) ! vents covariants - REAL :: teta(ip1jmp1, llm) ! temperature potentielle - REAL :: q(ip1jmp1, llm) ! temperature potentielle - REAL :: ps(ip1jmp1) ! pression au sol - REAL :: masse(ip1jmp1, llm) ! masse d'air - - ! common passe pour des sorties - REAL :: dxdys(iip1, jjp1), dxdyu(iip1, jjp1), dxdyv(iip1, jjm) - COMMON /comdxdy/dxdys, dxdyu, dxdyv - - ! variables dynamiques pour les reanalyses. - REAL :: ucovrea1(ip1jmp1, llm), vcovrea1(ip1jm, llm) !vts cov reas - REAL :: tetarea1(ip1jmp1, llm) ! temp pot reales - REAL :: qrea1(ip1jmp1, llm) ! temp pot reales - REAL :: psrea1(ip1jmp1) ! ps - REAL :: ucovrea2(ip1jmp1, llm), vcovrea2(ip1jm, llm) !vts cov reas - REAL :: tetarea2(ip1jmp1, llm) ! temp pot reales - REAL :: qrea2(ip1jmp1, llm) ! temp pot reales - REAL :: masserea2(ip1jmp1, llm) ! masse - REAL :: psrea2(ip1jmp1) ! ps - - REAL :: alpha_q(ip1jmp1) - REAL :: alpha_t(ip1jmp1), alpha_p(ip1jmp1) - REAL :: alpha_u(ip1jmp1), alpha_v(ip1jm) - REAL :: dday_step, toto, reste, itau_test - INTEGER :: step_rea, count_no_rea - - !IM 180305 real aire_min, aire_max - INTEGER :: ilon, ilat - REAL :: factt, ztau(ip1jmp1) - - INTEGER, INTENT (IN) :: itau - INTEGER :: ij, l - INTEGER :: ncidpl, varidpl, nlev, status - INTEGER :: rcod, rid - REAL :: ditau, tau, a - SAVE nlev - - ! TEST SUR QSAT - REAL :: p(ip1jmp1, llmp1), pk(ip1jmp1, llm), pks(ip1jmp1) - REAL :: pkf(ip1jmp1, llm) - REAL :: pres(ip1jmp1, llm) - - REAL :: qsat(ip1jmp1, llm) - REAL :: unskap - REAL :: tnat(ip1jmp1, llm) - !cccccccccccccccc - - - LOGICAL :: first - SAVE first - DATA first/ .TRUE./ - - SAVE ucovrea1, vcovrea1, tetarea1, psrea1, qrea1 - SAVE ucovrea2, vcovrea2, tetarea2, masserea2, psrea2, qrea2 - - SAVE alpha_t, alpha_q, alpha_u, alpha_v, alpha_p, itau_test - SAVE step_rea, count_no_rea - - CHARACTER (10) :: file - INTEGER :: igrads - REAL :: dtgrads - SAVE igrads, dtgrads - DATA igrads, dtgrads/2, 100./ - - PRINT *, 'Call sequence information: guide' - - !----------------------------------------------------------------------- - ! calcul de l'humidite saturante - !----------------------------------------------------------------------- - CALL pression(ip1jmp1, ap, bp, ps, p) - CALL massdair(p, masse) - PRINT *, 'OK1' - CALL exner_hyb(ps, p, pks, pk, pkf) - PRINT *, 'OK2' - tnat(:, :) = pk(:, :)*teta(:, :)/cpp - PRINT *, 'OK3' - unskap = 1./kappa - pres(:, :) = preff*(pk(:, :)/cpp)**unskap - PRINT *, 'OK4' - qsat = q_sat(tnat, pres) - - !----------------------------------------------------------------------- - - !----------------------------------------------------------------------- - ! initialisations pour la lecture des reanalyses. - ! alpha determine la part des injections de donnees a chaque etape - ! alpha=1 signifie pas d'injection - ! alpha=0 signifie injection totale - !----------------------------------------------------------------------- - - PRINT *, 'ONLINE=', online - IF (online==-1) THEN - RETURN - END IF - - IF (first) THEN - - PRINT *, 'initialisation du guide ' - CALL conf_guide - PRINT *, 'apres conf_guide' - - file = 'guide' - CALL inigrads(igrads, rlonv, 180./pi, -180., 180., rlatu, -90., 90., & - 180./pi, presnivs, 1., dtgrads, file, 'dyn_zon ') - - PRINT *, & - '1: en-ligne, 0: hors-ligne (x=x_rea), -1: climat (x=x_gcm)' - - IF (online==-1) RETURN - IF (online==1) THEN - - !ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc - ! Constantes de temps de rappel en jour - ! 0.1 c'est en gros 2h30. - ! 1e10 est une constante infinie donc en gros pas de guidage - !ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc - ! coordonnees du centre du zoom - CALL coordij(clon, clat, ilon, ilat) - ! aire de la maille au centre du zoom - aire_min = aire(ilon+(ilat-1)*iip1) - ! aire maximale de la maille - aire_max = 0. - DO ij = 1, ip1jmp1 - aire_max = max(aire_max, aire(ij)) - END DO - ! factt = pas de temps en fraction de jour - factt = dtvr*iperiod/daysec - - ! subroutine tau2alpha(type, im, jm, factt, taumin, taumax, alpha) - CALL tau2alpha(3, iip1, jjm, factt, tau_min_v, tau_max_v, alpha_v) - CALL tau2alpha(2, iip1, jjp1, factt, tau_min_u, tau_max_u, alpha_u) - CALL tau2alpha(1, iip1, jjp1, factt, tau_min_t, tau_max_t, alpha_t) - CALL tau2alpha(1, iip1, jjp1, factt, tau_min_p, tau_max_p, alpha_p) - CALL tau2alpha(1, iip1, jjp1, factt, tau_min_q, tau_max_q, alpha_q) - - CALL dump2d(iip1, jjp1, aire, 'AIRE MAILLe ') - CALL dump2d(iip1, jjp1, alpha_u, 'COEFF U ') - CALL dump2d(iip1, jjp1, alpha_t, 'COEFF T ') - - !ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc - ! Cas ou on force exactement par les variables analysees - ELSE - alpha_t = 0. - alpha_u = 0. - alpha_v = 0. - alpha_p = 0. - ! physic=.false. - END IF - - itau_test = 1001 - step_rea = 1 - count_no_rea = 0 - ncidpl = -99 - - ! itau_test montre si l'importation a deja ete faite au rang itau - ! lecture d'un fichier netcdf pour determiner le nombre de niveaux - if (guide_u) then - if (ncidpl.eq.-99) rcod=nf90_open('u.nc',Nf90_NOWRITe,ncidpl) - endif - - if (guide_v) then - if (ncidpl.eq.-99) rcod=nf90_open('v.nc',nf90_nowrite,ncidpl) - endif - - if (guide_T) then - if (ncidpl.eq.-99) rcod=nf90_open('T.nc',nf90_nowrite,ncidpl) - endif - - if (guide_Q) then - if (ncidpl.eq.-99) rcod=nf90_open('hur.nc',nf90_nowrite, ncidpl) - endif - - IF (ncep) THEN - status = nf_inq_dimid(ncidpl, 'LEVEL', rid) - ELSE - status = nf_inq_dimid(ncidpl, 'PRESSURE', rid) - END IF - status = nf_inq_dimlen(ncidpl, rid, nlev) - PRINT *, 'nlev', nlev - rcod = nf90_close(ncidpl) - ! Lecture du premier etat des reanalyses. - CALL read_reanalyse(1, ps, ucovrea2, vcovrea2, tetarea2, qrea2, masserea2, & - psrea2, 1, nlev) - qrea2(:, :) = max(qrea2(:, :), 0.1) - - - !----------------------------------------------------------------------- - ! Debut de l'integration temporelle: - ! ---------------------------------- - - END IF ! first - - !----------------------------------------------------------------------- - !----- IMPORTATION DES VENTS, PRESSION ET TEMPERATURE REELS: - !----------------------------------------------------------------------- - - ditau = real(itau) - dday_step = real(day_step) - WRITE (*, *) 'ditau, dday_step' - WRITE (*, *) ditau, dday_step - toto = 4*ditau/dday_step - reste = toto - aint(toto) - ! write(*, *)'toto, reste', toto, reste - - IF (reste==0.) THEN - IF (itau_test==itau) THEN - WRITE (*, *) 'deuxieme passage de advreel a itau=', itau - STOP - ELSE - vcovrea1(:, :) = vcovrea2(:, :) - ucovrea1(:, :) = ucovrea2(:, :) - tetarea1(:, :) = tetarea2(:, :) - qrea1(:, :) = qrea2(:, :) - - PRINT *, 'LECTURE REANALYSES, pas ', step_rea, 'apres ', & - count_no_rea, ' non lectures' - step_rea = step_rea + 1 - itau_test = itau - CALL read_reanalyse(step_rea, ps, ucovrea2, vcovrea2, tetarea2, qrea2, & - masserea2, psrea2, 1, nlev) - qrea2(:, :) = max(qrea2(:, :), 0.1) - factt = dtvr*iperiod/daysec - ztau(:) = factt/max(alpha_t(:), 1.E-10) - CALL wrgrads(igrads, 1, aire, 'aire ', 'aire ') - CALL wrgrads(igrads, 1, dxdys, 'dxdy ', 'dxdy ') - CALL wrgrads(igrads, 1, alpha_u, 'au ', 'au ') - CALL wrgrads(igrads, 1, alpha_t, 'at ', 'at ') - CALL wrgrads(igrads, 1, ztau, 'taut ', 'taut ') - CALL wrgrads(igrads, llm, ucov, 'u ', 'u ') - CALL wrgrads(igrads, llm, ucovrea2, 'ua ', 'ua ') - CALL wrgrads(igrads, llm, teta, 'T ', 'T ') - CALL wrgrads(igrads, llm, tetarea2, 'Ta ', 'Ta ') - CALL wrgrads(igrads, llm, qrea2, 'Qa ', 'Qa ') - CALL wrgrads(igrads, llm, q, 'Q ', 'Q ') - - CALL wrgrads(igrads, llm, qsat, 'QSAT ', 'QSAT ') - - END IF - ELSE - count_no_rea = count_no_rea + 1 - END IF - - !----------------------------------------------------------------------- - ! Guidage - ! x_gcm = a * x_gcm + (1-a) * x_reanalyses - !----------------------------------------------------------------------- - - IF (ini_anal) PRINT *, 'ATTENTION !!! ON PART DU GUIDAGE' - - ditau = real(itau) - dday_step = real(day_step) - - - tau = 4*ditau/dday_step - tau = tau - aint(tau) - - ! ucov - IF (guide_u) THEN - DO l = 1, llm - DO ij = 1, ip1jmp1 - a = (1.-tau)*ucovrea1(ij, l) + tau*ucovrea2(ij, l) - ucov(ij, l) = (1.-alpha_u(ij))*ucov(ij, l) + alpha_u(ij)*a - IF (first .AND. ini_anal) ucov(ij, l) = a - END DO - END DO - END IF - - ! teta - IF (guide_t) THEN - DO l = 1, llm - DO ij = 1, ip1jmp1 - a = (1.-tau)*tetarea1(ij, l) + tau*tetarea2(ij, l) - teta(ij, l) = (1.-alpha_t(ij))*teta(ij, l) + alpha_t(ij)*a - IF (first .AND. ini_anal) teta(ij, l) = a - END DO - END DO - END IF - - ! P - IF (guide_p) THEN - DO ij = 1, ip1jmp1 - a = (1.-tau)*psrea1(ij) + tau*psrea2(ij) - ps(ij) = (1.-alpha_p(ij))*ps(ij) + alpha_p(ij)*a - IF (first .AND. ini_anal) ps(ij) = a - END DO - CALL pression(ip1jmp1, ap, bp, ps, p) - CALL massdair(p, masse) - END IF - - - ! q - IF (guide_q) THEN - DO l = 1, llm - DO ij = 1, ip1jmp1 - a = (1.-tau)*qrea1(ij, l) + tau*qrea2(ij, l) - ! hum relative en % -> hum specif - a = qsat(ij, l)*a*0.01 - q(ij, l) = (1.-alpha_q(ij))*q(ij, l) + alpha_q(ij)*a - IF (first .AND. ini_anal) q(ij, l) = a - END DO - END DO - END IF - - ! vcov - IF (guide_v) THEN - DO l = 1, llm - DO ij = 1, ip1jm - a = (1.-tau)*vcovrea1(ij, l) + tau*vcovrea2(ij, l) - vcov(ij, l) = (1.-alpha_v(ij))*vcov(ij, l) + alpha_v(ij)*a - IF (first .AND. ini_anal) vcov(ij, l) = a - END DO - IF (first .AND. ini_anal) vcov(ij, l) = a - END DO - END IF - - ! call dump2d(iip1, jjp1, tetarea1, 'TETA REA 1 ') - ! call dump2d(iip1, jjp1, tetarea2, 'TETA REA 2 ') - ! call dump2d(iip1, jjp1, teta, 'TETA ') - - first = .FALSE. - - RETURN -END SUBROUTINE guide - - !======================================================================= - SUBROUTINE tau2alpha(type, pim, pjm, factt, taumin, taumax, alpha) - !======================================================================= - - USE dimens_m, ONLY : iim, jjm - USE paramet_m, ONLY : iip1, jjp1 - USE comconst, ONLY : pi - USE comgeom, ONLY : cu_2d, cv_2d, rlatu, rlatv - USE serre, ONLY : clat, clon, grossismx, grossismy - IMPLICIT NONE - - ! arguments : - INTEGER :: type - INTEGER :: pim, pjm - REAL :: factt, taumin, taumax - REAL :: dxdy_, alpha(pim, pjm) - REAL :: dxdy_min, dxdy_max - - ! local : - REAL :: alphamin, alphamax, gamma, xi - SAVE gamma - INTEGER :: i, j, ilon, ilat - - LOGICAL :: first - SAVE first - DATA first/ .TRUE./ - - REAL :: zdx(iip1, jjp1), zdy(iip1, jjp1) - - REAL :: zlat - REAL :: dxdys(iip1, jjp1), dxdyu(iip1, jjp1), dxdyv(iip1, jjm) - COMMON /comdxdy/dxdys, dxdyu, dxdyv - - IF (first) THEN - DO j = 2, jjm - DO i = 2, iip1 - zdx(i, j) = 0.5*(cu_2d(i-1, j)+cu_2d(i, j))/cos(rlatu(j)) - END DO - zdx(1, j) = zdx(iip1, j) - END DO - DO j = 2, jjm - DO i = 1, iip1 - zdy(i, j) = 0.5*(cv_2d(i, j-1)+cv_2d(i, j)) - END DO - END DO - DO i = 1, iip1 - zdx(i, 1) = zdx(i, 2) - zdx(i, jjp1) = zdx(i, jjm) - zdy(i, 1) = zdy(i, 2) - zdy(i, jjp1) = zdy(i, jjm) - END DO - DO j = 1, jjp1 - DO i = 1, iip1 - dxdys(i, j) = sqrt(zdx(i, j)*zdx(i, j)+zdy(i, j)*zdy(i, j)) - END DO - END DO - DO j = 1, jjp1 - DO i = 1, iim - dxdyu(i, j) = 0.5*(dxdys(i, j)+dxdys(i+1, j)) - END DO - dxdyu(iip1, j) = dxdyu(1, j) - END DO - DO j = 1, jjm - DO i = 1, iip1 - dxdyv(i, j) = 0.5*(dxdys(i, j)+dxdys(i+1, j)) - END DO - END DO - - CALL dump2d(iip1, jjp1, dxdys, 'DX2DY2 SCAL ') - CALL dump2d(iip1, jjp1, dxdyu, 'DX2DY2 U ') - CALL dump2d(iip1, jjp1, dxdyv, 'DX2DY2 v ') - - ! coordonnees du centre du zoom - CALL coordij(clon, clat, ilon, ilat) - ! aire de la maille au centre du zoom - dxdy_min = dxdys(ilon, ilat) - ! dxdy maximale de la maille - dxdy_max = 0. - DO j = 1, jjp1 - DO i = 1, iip1 - dxdy_max = max(dxdy_max, dxdys(i, j)) - END DO - END DO - - IF (abs(grossismx-1.)<0.1 .OR. abs(grossismy-1.)<0.1) THEN - PRINT *, 'ATTENTION modele peu zoome' - PRINT *, 'ATTENTION on prend une constante de guidage cste' - gamma = 0. + IF (ncep) THEN + call nf95_inq_dimid(ncid, 'LEVEL', dimid) ELSE - gamma = (dxdy_max-2.*dxdy_min)/(dxdy_max-dxdy_min) - PRINT *, 'gamma=', gamma - IF (gamma<1.E-5) THEN - PRINT *, 'gamma =', gamma, '<1e-5' - STOP - END IF - PRINT *, 'gamma=', gamma - gamma = log(0.5)/log(gamma) + call nf95_inq_dimid(ncid, 'PRESSURE', dimid) END IF + call nf95_inquire_dimension(ncid, dimid, nclen=nlev) + PRINT *, 'nlev = ', nlev + call nf95_close(ncid) + + ! Lecture du premier état des réanalyses : + CALL read_reanalyse(1, ps, ucovrea2, vcovrea2, tetarea2, qrea2, & + masserea2, nlev) + qrea2 = max(qrea2, 0.1) + END IF first_call + + ! IMPORTATION DES VENTS, PRESSION ET TEMPERATURE REELS: + + ! Nudging fields are given 4 times per day: + IF (mod(itau, day_step / 4) == 0) THEN + vcovrea1 = vcovrea2 + ucovrea1 = ucovrea2 + tetarea1 = tetarea2 + qrea1 = qrea2 + + PRINT *, 'Lecture fichiers guidage, pas ', step_rea, 'apres ', & + count_no_rea, ' non lectures' + step_rea = step_rea + 1 + CALL read_reanalyse(step_rea, ps, ucovrea2, vcovrea2, tetarea2, qrea2, & + masserea2, nlev) + qrea2 = max(qrea2, 0.1) + + if (guide_u) then + CALL writefield("ucov", ucov) + CALL writefield("ucovrea2", ucovrea2) + end if + + if (guide_t) then + CALL writefield("teta", teta) + CALL writefield("tetarea2", tetarea2) + end if + + if (guide_q) then + CALL writefield("qrea2", qrea2) + CALL writefield("q", q) + end if + ELSE + count_no_rea = count_no_rea + 1 END IF - alphamin = factt/taumax - alphamax = factt/taumin + ! Guidage + + tau = mod(real(itau) / real(day_step / 4), 1.) - DO j = 1, pjm - DO i = 1, pim - IF (type==1) THEN - dxdy_ = dxdys(i, j) - zlat = rlatu(j)*180./pi - ELSE IF (type==2) THEN - dxdy_ = dxdyu(i, j) - zlat = rlatu(j)*180./pi - ELSE IF (type==3) THEN - dxdy_ = dxdyv(i, j) - zlat = rlatv(j)*180./pi - END IF - IF (abs(grossismx-1.)<0.1 .OR. abs(grossismy-1.)<0.1) THEN - ! pour une grille reguliere, xi=xxx**0=1 -> alpha=alphamin - alpha(i, j) = alphamin - ELSE - xi = ((dxdy_max-dxdy_)/(dxdy_max-dxdy_min))**gamma - xi = min(xi, 1.) - IF (lat_min_guide<=zlat .AND. zlat<=lat_max_guide) THEN - alpha(i, j) = xi*alphamin + (1.-xi)*alphamax - ELSE - alpha(i, j) = 0. - END IF - END IF - END DO - END DO + ! x_gcm = a * x_gcm + (1 - a) * x_reanalyses + IF (guide_u) THEN + IF (itau == 0 .AND. ini_anal) then + ucov = ucovrea1 + else + forall (l = 1: llm) ucov(:, :, l) = (1. - alpha_u) * ucov(:, :, l) & + + alpha_u * ((1. - tau) * ucovrea1(:, :, l) & + + tau * ucovrea2(:, :, l)) + end IF + END IF + + IF (guide_t) THEN + IF (itau == 0 .AND. ini_anal) then + teta = tetarea1 + else + forall (l = 1: llm) teta(:, :, l) = (1. - alpha_t) * teta(:, :, l) & + + alpha_t * ((1. - tau) * tetarea1(:, :, l) & + + tau * tetarea2(:, :, l)) + end IF + END IF + + IF (guide_q) THEN + ! Calcul de l'humidité saturante : + forall (l = 1: llm + 1) p(:, :, l) = ap(l) + bp(l) * ps + CALL exner_hyb(ps, p, pks, pk) + qsat = q_sat(pk * teta / cpp, preff * (pk / cpp)**(1. / kappa)) + + ! humidité relative en % -> humidité spécifique + IF (itau == 0 .AND. ini_anal) then + q = qsat * qrea1 * 0.01 + else + forall (l = 1: llm) q(:, :, l) = (1. - alpha_q) * q(:, :, l) & + + alpha_q * (qsat(:, :, l) * ((1. - tau) * qrea1(:, :, l) & + + tau * qrea2(:, :, l)) * 0.01) + end IF + END IF + + IF (guide_v) THEN + IF (itau == 0 .AND. ini_anal) then + vcov = vcovrea1 + else + forall (l = 1: llm) vcov(:, :, l) = (1. - alpha_v) * vcov(:, :, l) & + + alpha_v * ((1. - tau) * vcovrea1(:, :, l) & + + tau * vcovrea2(:, :, l)) + end IF + END IF - RETURN - END SUBROUTINE tau2alpha + END SUBROUTINE guide END MODULE guide_m