--- trunk/libf/dyn3d/guide.f90 2008/02/27 13:16:39 3 +++ trunk/Sources/dyn3d/Guide/guide.f 2015/09/29 19:48:59 171 @@ -1,535 +1,243 @@ -module guide_m +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 - -contains - - subroutine guide(itau,ucov,vcov,teta,q,masse,ps) - - use dimens_m - use paramet_m - use comconst - use comdissnew - use comvert - use conf_gcm_m - use logic - use comgeom - use serre - use temps - use tracstoke - use ener - use q_sat_m, only: q_sat - use exner_hyb_m, only: exner_hyb - use pression_m, only: pression - use inigrads_m, only: inigrads - - IMPLICIT NONE - - ! ...... Version du 10/01/98 .......... - - ! avec coordonnees verticales hybrides - ! avec nouveaux operat. dissipation * ( gradiv2,divgrad2,nxgraro2 ) - - !======================================================================= - ! - ! 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: - ! ------------- + IMPLICIT NONE - include "netcdf.inc" +CONTAINS - ! 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./ + SUBROUTINE guide(itau, ucov, vcov, teta, q, ps) - print *,'Call sequence information: guide' + ! Author: F.Hourdin - !----------------------------------------------------------------------- - ! 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) + 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 - !----------------------------------------------------------------------- - ! 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 - !----------------------------------------------------------------------- + REAL, intent(inout):: teta(:, :, :) ! (iim + 1, jjm + 1, llm) + ! température potentielle - print*,'ONLINE=',online - if(online.eq.-1) then - return - endif - - 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.eq.-1) return - if (online.eq.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)) - enddo - ! 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 ') + REAL, intent(inout):: q(:, :, :) ! (iim + 1, jjm + 1, llm) + REAL, intent(in):: ps(:, :) ! (iim + 1, jjm + 1) pression au sol - !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. - endif - - itau_test=1001 - step_rea=1 - count_no_rea=0 - ncidpl=-99 + ! Local: - ! 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) ncidpl=NCOPN('u.nc',NCNOWRIT,rcod) - endif - ! - if (guide_v) then - if (ncidpl.eq.-99) ncidpl=NCOPN('v.nc',NCNOWRIT,rcod) - endif - ! - if (guide_T) then - if (ncidpl.eq.-99) ncidpl=NCOPN('T.nc',NCNOWRIT,rcod) - endif - ! - if (guide_Q) then - if (ncidpl.eq.-99) ncidpl=NCOPN('hur.nc',NCNOWRIT,rcod) - endif - ! - if (ncep) then - status=NF_INQ_DIMID(ncidpl,'LEVEL',rid) - else - status=NF_INQ_DIMID(ncidpl,'PRESSURE',rid) - endif - status=NF_INQ_DIMLEN(ncidpl,rid,nlev) - print *,'nlev', nlev - call ncclos(ncidpl,rcod) - ! 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: - ! ---------------------------------- + ! variables dynamiques pour les réanalyses - endif ! first - ! - !----------------------------------------------------------------------- - !----- IMPORTATION DES VENTS,PRESSION ET TEMPERATURE REELS: - !----------------------------------------------------------------------- + REAL, save:: ucovrea1(iim + 1, jjm + 1, llm), vcovrea1(iim + 1, jjm, llm) + ! vents covariants reanalyses - 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.eq.0.) then - if (itau_test.eq.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 ' ) - - endif - else - count_no_rea=count_no_rea+1 - endif + 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) !----------------------------------------------------------------------- - ! Guidage - ! x_gcm = a * x_gcm + (1-a) * x_reanalyses - !----------------------------------------------------------------------- - if(ini_anal) print*,'ATTENTION !!! ON PART DU GUIDAGE' + !!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) - ditau=real(itau) - dday_step=real(day_step) + 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 + step_rea = 1 + count_no_rea = 0 - tau=4*ditau/dday_step - tau=tau-aint(tau) + ! Lecture d'un fichier NetCDF pour d\'eterminer le nombre de niveaux : - ! 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 - enddo - enddo - endif - - ! 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 - enddo - enddo - endif - - ! 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 - enddo - CALL pression(ip1jmp1,ap,bp,ps,p) - CALL massdair(p,masse) - endif - - - ! 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 - enddo - enddo - endif - - ! 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 - enddo - if (first.and.ini_anal) vcov(ij,l)=a - enddo - endif - - ! 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 - use paramet_m - use comconst, only: pi - use comgeom - use serre - 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)) - enddo - zdx(1,j)=zdx(iip1,j) - enddo - do j=2,jjm - do i=1,iip1 - zdy(i,j)=0.5*(cv_2d(i,j-1)+cv_2d(i,j)) - enddo - enddo - 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) - enddo - do j=1,jjp1 - do i=1,iip1 - dxdys(i,j)=sqrt(zdx(i,j)*zdx(i,j)+zdy(i,j)*zdy(i,j)) - enddo - enddo - do j=1,jjp1 - do i=1,iim - dxdyu(i,j)=0.5*(dxdys(i,j)+dxdys(i+1,j)) - enddo - dxdyu(iip1,j)=dxdyu(1,j) - enddo - do j=1,jjm - do i=1,iip1 - dxdyv(i,j)=0.5*(dxdys(i,j)+dxdys(i+1,j)) - enddo - enddo - - 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)) - enddo - enddo - - if (abs(grossismx-1.).lt.0.1.or.abs(grossismy-1.).lt.0.1) then - print*,'ATTENTION modele peu zoome' - print*,'ATTENTION on prend une constante de guidage cste' - gamma=0. + 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 - gamma=(dxdy_max-2.*dxdy_min)/(dxdy_max-dxdy_min) - print*,'gamma=',gamma - if (gamma.lt.1.e-5) then - print*,'gamma =',gamma,'<1e-5' - stop - endif - print*,'gamma=',gamma - gamma=log(0.5)/log(gamma) - endif - endif - - alphamin=factt/taumax - alphamax=factt/taumin - - do j=1,pjm - do i=1,pim - if (type.eq.1) then - dxdy_=dxdys(i,j) - zlat=rlatu(j)*180./pi - elseif (type.eq.2) then - dxdy_=dxdyu(i,j) - zlat=rlatu(j)*180./pi - elseif (type.eq.3) then - dxdy_=dxdyv(i,j) - zlat=rlatv(j)*180./pi - endif - if (abs(grossismx-1.).lt.0.1.or.abs(grossismy-1.).lt.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.le.zlat .and. zlat.le.lat_max_guide) then - alpha(i,j)=xi*alphamin+(1.-xi)*alphamax - else - alpha(i,j)=0. - endif - endif - enddo - enddo + call nf95_open('hur.nc',nf90_nowrite, ncid) + end if + + IF (ncep) THEN + call nf95_inq_dimid(ncid, 'LEVEL', dimid) + ELSE + 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 + + ! Guidage + + tau = mod(real(itau) / real(day_step / 4), 1.) + + ! 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 +END MODULE guide_m