source: trunk/LMDZ.GENERIC/libf/phystd/rcm1d.F @ 735

      program rcm1d

! to use  'getin'
      use ioipsl_getincom 

      implicit none

!==================================================================
!     
!     Purpose
!     -------
!     Run the physics package of the universal model in a 1D column.
!     
!     It can be compiled with a command like (e.g. for 25 layers):
!                                  "makegcm -p std -d 25 rcm1d"
!     It requires the files "callphys.def", "z2sig.def",
!     "traceur.def", and "run.def" with a line "INCLUDEDEF=callphys.def"
!
!     Authors
!     -------
!     Frederic Hourdin
!     R. Fournier
!     F. Forget
!     F. Montmessin (water ice added)
!     R. Wordsworth
!     B. Charnay
!     A. Spiga
!     J. Leconte (2012)
!
!==================================================================

#include "dimensions.h"
#include "paramet.h"
#include "dimphys.h"
#include "comgeomfi.h"
#include "surfdat.h"
#include "comsoil.h"
#include "comdiurn.h"
#include "callkeys.h"
#include "comcstfi.h"
#include "planete.h"
#include "comsaison.h"
#include "control.h"
#include "comvert.h"
#include "netcdf.inc"
#include "watercap.h" 
#include "fisice.h"
#include "logic.h"
#include "advtrac.h"
#include "comgeom.h"

c --------------------------------------------------------------
c  Declarations
c --------------------------------------------------------------
c
      INTEGER unitstart      ! unite d'ecriture de "startfi"
      INTEGER nlayer,nlevel,nsoil,ndt
      INTEGER ilayer,ilevel,isoil,idt,iq
      LOGICAl firstcall,lastcall
c
      INTEGER day0          ! date initial (sol ; =0 a Ls=0)
      REAL day           ! date durant le run
      REAL time             ! time (0<time<1 ; time=0.5 a midi)
      REAL play(nlayermx)   ! Pressure at the middle of the layers (Pa)
      REAL plev(nlayermx+1) ! intermediate pressure levels (pa)
      REAL psurf,tsurf      
      REAL u(nlayermx),v(nlayermx)  ! zonal, meridional wind
      REAL gru,grv   ! prescribed "geostrophic" background wind
      REAL temp(nlayermx)   ! temperature at the middle of the layers
      REAL q(nlayermx,nqmx) ! tracer mixing ratio (e.g. kg/kg)
      REAL qsurf(nqmx)      ! tracer surface budget (e.g. kg.m-2)
      REAL tsoil(nsoilmx)   ! subsurface soik temperature (K)
!      REAL co2ice           ! co2ice layer (kg.m-2) !not used anymore
      integer :: i_co2_ice=0  ! tracer index of co2 ice
      integer :: i_h2o_ice=0  ! tracer index of h2o ice
      integer :: i_h2o_vap=0  ! tracer index of h2o vapor
      REAL emis             ! surface layer
      REAL q2(nlayermx+1)   ! Turbulent Kinetic Energy
      REAL zlay(nlayermx)   ! altitude estimee dans les couches (km)

c    Physical and dynamical tandencies (e.g.  m.s-2, K/s, Pa/s)
      REAL du(nlayermx),dv(nlayermx),dtemp(nlayermx)
      REAL dudyn(nlayermx),dvdyn(nlayermx),dtempdyn(nlayermx)
      REAL dpsurf    
      REAL dq(nlayermx,nqmx)
      REAL dqdyn(nlayermx,nqmx)

c   Various intermediate variables
!      INTEGER thermo
      REAL zls
      REAL phi(nlayermx),h(nlayermx),s(nlayermx)
      REAL pks, ptif, w(nlayermx)
      REAL qtotinit, mqtot(nqmx),qtot
      INTEGER ierr, aslun
      REAL tmp1(0:nlayermx),tmp2(0:nlayermx)
      Logical  tracerdyn
      integer :: nq=1 ! number of tracers
 
      character*2 str2
      character (len=7) :: str7

      logical oldcompare, earthhack,saveprofile

!     added by RW for zlay computation
      real Hscale, Hmax, rho, dz

!     added by RW for autozlevs computation
      real nu, xx, pMIN, zlev, Htop
      real logplevs(nlayermx)

!     added by BC
      REAL cloudfrac(ngridmx,nlayermx)
      REAL hice(ngridmx),totcloudfrac(ngridmx)
      REAL qzero1D   !initial water amount on the ground

c=======================================================================
c INITIALISATION
c=======================================================================

      saveprofile=.false.
      saveprofile=.true.

c ----------------------------------------
c  Default values  (corresponding to Mars)
c ----------------------------------------

      pi=2.E+0*asin(1.E+0)

c     Parametres Couche limite et Turbulence 
c     --------------------------------------
      z0 =  1.e-2                ! surface roughness (m) ~0.01 
      emin_turb = 1.e-6          ! energie minimale ~1.e-8
      lmixmin = 30               ! longueur de melange ~100
 
c     propriete optiques des calottes et emissivite du sol
c     ----------------------------------------------------
      emissiv= 0.95              ! Emissivite du sol martien ~.95
      emisice(1)=0.95            ! Emissivite calotte nord
      emisice(2)=0.95            ! Emissivite calotte sud  

      albedice(1)=0.5            ! Albedo calotte nord
      albedice(2)=0.5            ! Albedo calotte sud
      iceradius(1) = 100.e-6     ! mean scat radius of CO2 snow (north)
      iceradius(2) = 100.e-6     ! mean scat radius of CO2 snow (south)
      dtemisice(1) = 2.          ! time scale for snow metamorphism (north)
      dtemisice(2) = 2.          ! time scale for snow metamorphism (south
      hybrid=.false.

c ------------------------------------------------------
c  Load parameters from "run.def" and "gases.def" 
c ------------------------------------------------------

! check if 'rcm1d.def' file is around 
      open(90,file='rcm1d.def',status='old',form='formatted',
     &     iostat=ierr)
      if (ierr.ne.0) then
        write(*,*) 'Cannot find required file "rcm1d.def"'
        write(*,*) 'which should contain some input parameters'
        write(*,*) ' ... might as well stop here ...'
        stop
      else
        close(90)
      endif

! now, run.def is needed anyway. so we create a dummy temporary one
! for ioipsl to work. if a run.def is already here, stop the
! program and ask the user to do a bit of cleaning
      open(90,file='run.def',status='old',form='formatted',
     &     iostat=ierr)
      if (ierr.eq.0) then
        close(90)
        write(*,*) 'There is already a run.def file.'
        write(*,*) 'This is not compatible with 1D runs.'
        write(*,*) 'Please remove the file and restart the run.'
        write(*,*) 'Runtime parameters are supposed to be in rcm1d.def'
        stop
      else
        call system('touch run.def')
        call system("echo 'INCLUDEDEF=callphys.def' >> run.def")
        call system("echo 'INCLUDEDEF=rcm1d.def' >> run.def")
      endif

! check if we are going to run with or without tracers
      write(*,*) "Run with or without tracer transport ?"
      tracer=.false. ! default value
      call getin("tracer",tracer)
      write(*,*) " tracer = ",tracer

! OK. now that run.def has been read once -- any variable is in memory.
! so we can dump the dummy run.def
      call system("rm -rf run.def")

! while we're at it, check if there is a 'traceur.def' file
! and preocess it, if necessary. Otherwise initialize tracer names
      if (tracer) then
      ! load tracer names from file 'traceur.def'
        open(90,file='traceur.def',status='old',form='formatted',
     &       iostat=ierr)
        if (ierr.eq.0) then
          write(*,*) "rcm1d: Reading file traceur.def"
          ! read number of tracers:
          read(90,*,iostat=ierr) nq
          if (ierr.ne.0) then
            write(*,*) "rcm1d: error reading number of tracers"
            write(*,*) "   (first line of traceur.def) "
            stop
          else
            ! check that the number of tracers is indeed nqmx
            if (nq.ne.nqmx) then
              write(*,*) "rcm1d: error, wrong number of tracers:"
              write(*,*) "nq=",nq," whereas nqmx=",nqmx
              stop
            endif
          endif
        
          ! initialize advection schemes to Van-Leer for all tracers
          do iq=1,nq
            iadv(iq)=3 ! Van-Leer
          enddo
        
          do iq=1,nq
          ! minimal version, just read in the tracer names, 1 per line
            read(90,*,iostat=ierr) tnom(iq)
            if (ierr.ne.0) then
              write(*,*) 'rcm1d: error reading tracer names...'
              stop
            endif
          enddo !of do iq=1,nq
! check for co2_ice / h2o_ice tracers:
         i_co2_ice=0
         i_h2o_ice=0
         i_h2o_vap=0
         do iq=1,nq
           if (tnom(iq)=="co2_ice") then
             i_co2_ice=iq
           elseif (tnom(iq)=="h2o_ice") then
             i_h2o_ice=iq
           elseif (tnom(iq)=="h2o_vap") then
             i_h2o_vap=iq
           endif
         enddo
         !if (i_co2_ice==0) then
         !  write(*,*) "rcm1d: error, we need a 'co2_ice' tracer"
         !  write(*,*) "   (add one to traceur.def)"
         !  stop
         !endif
        else
          write(*,*) 'Cannot find required file "traceur.def"'
          write(*,*) ' If you want to run with tracers, I need it'
          write(*,*) ' ... might as well stop here ...'
          stop
        endif
        close(90)

      else
      ! we still need to set (dummy) tracer names for physdem1
        nq=nqmx
        do iq=1,nq
          write(str7,'(a1,i2.2)')'q',iq
          tnom(iq)=str7
        enddo
        ! actually, we'll need at least one "co2_ice" tracer
        ! (for surface CO2 ice)
        tnom(1)="co2_ice"
        i_co2_ice=1
      endif ! of if (tracer)

!!! We have to check that check_cpp_match is F for 1D computations
!!! We think this check is better than make a particular case for 1D in inifis or calc_cpp_mugaz
      check_cpp_match = .false.
      call getin("check_cpp_match",check_cpp_match)
      if (check_cpp_match) then
          print*,"In 1D modeling, check_cpp_match is supposed to be F"
          print*,"Please correct callphys.def"
          stop
      endif

!!! GEOGRAPHICAL INITIALIZATIONS
     !!! AREA. useless in 1D
      area(1)=1.E+0
      aire(1)=area(1) !JL+EM to have access to the area in the diagfi.nc files. area in comgeomfi.h and aire in comgeom.h
     !!! GEOPOTENTIAL. useless in 1D because control by surface pressure
      phisfi(1)=0.E+0
     !!! LATITUDE. can be set. 
      lati(1)=0 ! default value for lati(1)
      PRINT *,'latitude (in degrees) ?'
      call getin("latitude",lati(1))
      write(*,*) " latitude = ",lati(1)
      lati(1)=lati(1)*pi/180.E+0
     !!! LONGITUDE. useless in 1D.
      long(1)=0.E+0
      long(1)=long(1)*pi/180.E+0

!!! CALL INIFIS
!!! - read callphys.def
!!! - calculate sine and cosine of longitude and latitude
!!! - calculate mugaz and cp 
!!! NB: some operations are being done dummily in inifis in 1D
!!! - physical constants: nevermind, things are done allright below
!!! - physical frequency: nevermind, in inifis this is a simple print
      CALL inifis(1,llm,day0,daysec,dtphys,
     .            lati,long,area,rad,g,r,cpp)
!!! We check everything is OK.
      PRINT *,"CHECK"
      PRINT *,"--> mugaz = ",mugaz
      PRINT *,"--> cpp = ",cpp
      r = 8.314511E+0 * 1000.E+0 / mugaz
      rcp = r / cpp


!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!! PLANETARY CONSTANTS !!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

      g = -99999.
      PRINT *,'GRAVITY in m s-2 ?'
      call getin("g",g)
      IF (g.eq.-99999.) THEN
          PRINT *,"STOP. I NEED g IN RUN.DEF."
          STOP
      ELSE
          PRINT *,"--> g = ",g
      ENDIF

      !rad = -99999.
      !PRINT *,'PLANETARY RADIUS in m ?'
      !call getin("rad",rad)
      !IF (rad.eq.-99999.) THEN
      !    PRINT *,"STOP. I NEED rad IN RUN.DEF."
      !    STOP
      !ELSE
      !    PRINT *,"--> rad = ",rad
      !ENDIF

      daysec = -99999.
      PRINT *,'LENGTH OF A DAY in s ?'
      call getin("daysec",daysec)
      IF (daysec.eq.-99999.) THEN
          PRINT *,"STOP. I NEED daysec IN RUN.DEF."
          STOP
      ELSE
          PRINT *,"--> daysec = ",daysec
      ENDIF
      omeg=4.*asin(1.)/(daysec)
      PRINT *,"OK. FROM THIS I WORKED OUT:"
      PRINT *,"--> omeg = ",omeg

      year_day = -99999.
      PRINT *,'LENGTH OF A YEAR in days ?'
      call getin("year_day",year_day)
      IF (year_day.eq.-99999.) THEN
          PRINT *,"STOP. I NEED year_day IN RUN.DEF."
          STOP
      ELSE 
          PRINT *,"--> year_day = ",year_day
      ENDIF

      periastr = -99999.
      PRINT *,'MIN DIST STAR-PLANET in AU ?'
      call getin("periastr",periastr)
      IF (periastr.eq.-99999.) THEN
          PRINT *,"STOP. I NEED periastr IN RUN.DEF."
          STOP
      ELSE
          PRINT *,"--> periastr = ",periastr
      ENDIF

      apoastr = -99999.
      PRINT *,'MAX DIST STAR-PLANET in AU ?'
      call getin("apoastr",apoastr)
      IF (apoastr.eq.-99999.) THEN
          PRINT *,"STOP. I NEED apoastr IN RUN.DEF."
          STOP
      ELSE
          PRINT *,"--> apoastr = ",apoastr
      ENDIF

      peri_day = -99999.
      PRINT *,'DATE OF PERIASTRON in days ?'
      call getin("peri_day",peri_day)
      IF (peri_day.eq.-99999.) THEN
          PRINT *,"STOP. I NEED peri_day IN RUN.DEF."
          STOP
      ELSE IF (peri_day.gt.year_day) THEN
          PRINT *,"STOP. peri_day.gt.year_day"
          STOP
      ELSE  
          PRINT *,"--> peri_day = ", peri_day
      ENDIF 

      obliquit = -99999. 
      PRINT *,'OBLIQUITY in deg ?'
      call getin("obliquit",obliquit)
      IF (obliquit.eq.-99999.) THEN
          PRINT *,"STOP. I NEED obliquit IN RUN.DEF."
          STOP
      ELSE
          PRINT *,"--> obliquit = ",obliquit
      ENDIF 

      psurf = -99999.
      PRINT *,'SURFACE PRESSURE in Pa ?'
      call getin("psurf",psurf)
      IF (psurf.eq.-99999.) THEN
          PRINT *,"STOP. I NEED psurf IN RUN.DEF."
          STOP
      ELSE
          PRINT *,"--> psurf = ",psurf
      ENDIF
      !! we need reference pressures
      pa=psurf/30.
      preff=psurf ! these values are not needed in 1D  (are you sure JL12)

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!! END PLANETARY CONSTANTS !!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

c  Date et heure locale du debut du run
c  ------------------------------------
c    Date (en sols depuis le solstice de printemps) du debut du run
      day0 = 0 ! default value for day0
      write(*,*) 'Initial date (in martian sols ; =0 at Ls=0)?'
      call getin("day0",day0)
      day=float(day0)
      write(*,*) " day0 = ",day0
c  Heure de demarrage
      time=0 ! default value for time
      write(*,*)'Initial local time (in hours, between 0 and 24)?'
      call getin("time",time)
      write(*,*)" time = ",time
      time=time/24.E+0 ! convert time (hours) to fraction of sol


c  Discretisation (Definition de la grille et des pas de temps)
c  --------------
c
      nlayer=nlayermx
      nlevel=nlayer+1
      nsoil=nsoilmx

      day_step=48 ! default value for day_step
      PRINT *,'Number of time steps per sol ?'
      call getin("day_step",day_step)
      write(*,*) " day_step = ",day_step

       
      ecritphy=day_step ! default value for ecritphy
      PRINT *,'Nunber of steps between writediagfi ?'
      call getin("ecritphy",ecritphy)
      write(*,*) " ecritphy = ",ecritphy

      ndt=10 ! default value for ndt
      PRINT *,'Number of sols to run ?'
      call getin("ndt",ndt)
      write(*,*) " ndt = ",ndt

      ndt=ndt*day_step     
      dtphys=daysec/day_step  
      write(*,*)"-------------------------------------"
      write(*,*)"-------------------------------------"
      write(*,*)"--> Physical timestep is ",dtphys
      write(*,*)"-------------------------------------"
      write(*,*)"-------------------------------------"

c output spectrum?
      write(*,*)"Output spectral OLR?"
      specOLR=.false.
      call getin("specOLR",specOLR)
      write(*,*)" specOLR = ",specOLR

c
c  pour le schema d'ondes de gravite
c  ---------------------------------
      zmea(1)=0.E+0
      zstd(1)=0.E+0
      zsig(1)=0.E+0
      zgam(1)=0.E+0
      zthe(1)=0.E+0

c    Initialisation des traceurs
c    ---------------------------

      DO iq=1,nqmx
        DO ilayer=1,nlayer
           q(ilayer,iq) = 0.
        ENDDO
      ENDDO
     
      DO iq=1,nqmx
        qsurf(iq) = 0.
      ENDDO

      if (water) then
         qzero1D               = 0.0
         qsurf(i_h2o_vap) = qzero1D
      endif

c   Initialisation pour prendre en compte les vents en 1-D
c   ------------------------------------------------------
      ptif=2.E+0*omeg*sinlat(1)
 

c    vent geostrophique
      gru=10. ! default value for gru
      PRINT *,'zonal eastward component of the geostrophic wind (m/s) ?'
      call getin("u",gru)
      write(*,*) " u = ",gru
      grv=0. !default value for grv
      PRINT *,'meridional northward component of the geostrophic',
     &' wind (m/s) ?'
      call getin("v",grv)
      write(*,*) " v = ",grv

c     Initialisation des vents  au premier pas de temps
      DO ilayer=1,nlayer
         u(ilayer)=gru
         v(ilayer)=grv
      ENDDO

c     energie cinetique turbulente
      DO ilevel=1,nlevel
         q2(ilevel)=0.E+0
      ENDDO

c  emissivity / surface co2 ice ( + h2o ice??)
c  -------------------------------------------
      emis=emissiv ! default value for emissivity
      PRINT *,'Emissivity of bare ground ?'
      call getin("emis",emis)
      write(*,*) " emis = ",emis
      emissiv=emis ! we do this so that condense_co2 sets things to the right
                   ! value if there is no snow

      if(i_co2_ice.gt.0)then
         qsurf(i_co2_ice)=0 ! default value for co2ice
         print*,'Initial CO2 ice on the surface (kg.m-2)'
         call getin("co2ice",qsurf(i_co2_ice))
         write(*,*) " co2ice = ",qsurf(i_co2_ice)
         IF (qsurf(i_co2_ice).ge.1.E+0) THEN
            ! if we have some CO2 ice on the surface, change emissivity
            if (lati(1).ge.0) then ! northern hemisphere
              emis=emisice(1)
            else ! southern hemisphere
              emis=emisice(2)
            endif
         ENDIF
      endif

c  calcul des pressions et altitudes en utilisant les niveaux sigma
c  ----------------------------------------------------------------

c    Vertical Coordinates
c    """"""""""""""""""""
      hybrid=.true.
      PRINT *,'Hybrid coordinates ?'
      call getin("hybrid",hybrid)
      write(*,*) " hybrid = ", hybrid


      autozlevs=.false.
      PRINT *,'Auto-discretise vertical levels ?'
      call getin("autozlevs",autozlevs)
      write(*,*) " autozlevs = ", autozlevs

      pceil = psurf / 1000.0 ! Pascals
      PRINT *,'Ceiling pressure (Pa) ?'
      call getin("pceil",pceil)
      write(*,*) " pceil = ", pceil

! Test of incompatibility:
! if autozlevs used, cannot have hybrid too

      if (autozlevs.and.hybrid) then
         print*,'Cannot use autozlevs and hybrid together!'
         call abort
      endif

      if(autozlevs)then
            
         open(91,file="z2sig.def",form='formatted')
         read(91,*) Hscale
         DO ilayer=1,nlayer-2
            read(91,*) Hmax
         enddo
         close(91)
 
            
         print*,'Hmax = ',Hmax,' km'
         print*,'Auto-shifting Hscale to:'
!     Hscale = Hmax / log(psurf/100.0)
         Hscale = Hmax / log(psurf/pceil)
         print*,'Hscale = ',Hscale,' km'
         
! none of this matters if we dont care about zlay
         
      endif

      call disvert

         if(.not.autozlevs)then
            ! we want only the scale height from z2sig, in order to compute zlay
            open(91,file="z2sig.def",form='formatted')
            read(91,*) Hscale
            close(91)
         endif

!         if(autozlevs)then
!            open(94,file="Hscale.temp",form='formatted')
!            read(94,*) Hscale
!            close(94)
!         endif

         DO ilevel=1,nlevel
            plev(ilevel)=ap(ilevel)+psurf*bp(ilevel)
         ENDDO
         
         DO ilayer=1,nlayer
            play(ilayer)=aps(ilayer)+psurf*bps(ilayer)
         ENDDO
         


         DO ilayer=1,nlayer
!     zlay(ilayer)=-300.E+0 *r*log(play(ilayer)/plev(1))
!     &   /g
            zlay(ilayer)=-1000.0*Hscale*log(play(ilayer)/plev(1))
         ENDDO

!      endif

c  profil de temperature au premier appel
c  --------------------------------------
      pks=psurf**rcp

c altitude en km dans profile: on divise zlay par 1000
      tmp1(0)=0.E+0
      DO ilayer=1,nlayer
        tmp1(ilayer)=zlay(ilayer)/1000.E+0
      ENDDO
      call profile(nlayer+1,tmp1,tmp2)

      tsurf=tmp2(0)
      DO ilayer=1,nlayer
        temp(ilayer)=tmp2(ilayer)
      ENDDO
      

c  Initialisation albedo / inertie du sol
c  --------------------------------------
      albedodat(1)=0.2 ! default value for albedodat
      PRINT *,'Albedo of bare ground ?'
      call getin("albedo",albedodat(1))
      write(*,*) " albedo = ",albedodat(1)

      inertiedat(1,1)=400 ! default value for inertiedat
      PRINT *,'Soil thermal inertia (SI) ?'
      call getin("inertia",inertiedat(1,1))
      write(*,*) " inertia = ",inertiedat(1,1)

! Initialize soil properties and temperature
! ------------------------------------------
      volcapa=1.e6 ! volumetric heat capacity
      DO isoil=1,nsoil
         inertiedat(1,isoil)=inertiedat(1,1) ! soil thermal inertia
         tsoil(isoil)=tsurf  ! soil temperature
      ENDDO

! Initialize depths
! -----------------
      do isoil=0,nsoil-1
        mlayer(isoil)=2.e-4*(2.**(isoil-0.5)) ! mid-layer depth
      enddo
      do isoil=1,nsoil
        layer(isoil)=2.e-4*(2.**(isoil-1)) ! layer depth
      enddo


c  Ecriture de "startfi"
c  --------------------
c  (Ce fichier sera aussitot relu au premier
c   appel de "physiq", mais il est necessaire pour passer
c   les variables purement physiques a "physiq"...

      call physdem1("startfi.nc",long,lati,nsoilmx,nqmx,
     &              dtphys,float(day0),
     &              time,tsurf,tsoil,emis,q2,qsurf,
     &              area,albedodat,inertiedat,zmea,zstd,zsig,zgam,zthe,
     &              cloudfrac,totcloudfrac,hice)

c=======================================================================
c  BOUCLE TEMPORELLE DU MODELE 1D 
c=======================================================================

      firstcall=.true.
      lastcall=.false.

      DO idt=1,ndt
        IF (idt.eq.ndt) then       !test
         lastcall=.true.
         call stellarlong(day*1.0,zls)
!         write(103,*) 'Ls=',zls*180./pi
!         write(103,*) 'Lat=', lati(1)*180./pi
!         write(103,*) 'RunEnd - Atmos. Temp. File'
!         write(103,*) 'RunEnd - Atmos. Temp. File'
!         write(104,*) 'Ls=',zls*180./pi
!         write(104,*) 'Lat=', lati(1)
!         write(104,*) 'RunEnd - Atmos. Temp. File'
        ENDIF

c    calcul du geopotentiel 
c     ~~~~~~~~~~~~~~~~~~~~~


      DO ilayer=1,nlayer

!              if(autozlevs)then
!                 s(ilayer)=(play(ilayer)/psurf)**rcp
!              else
          s(ilayer)=(aps(ilayer)/psurf+bps(ilayer))**rcp
!              endif
              !s(ilayer)=(aps(ilayer)/psurf+bps(ilayer))**rcp
          h(ilayer)=cpp*temp(ilayer)/(pks*s(ilayer))
       ENDDO

!      DO ilayer=1,nlayer
!        s(ilayer)=(aps(ilayer)/psurf+bps(ilayer))**rcp
!        h(ilayer)=cpp*temp(ilayer)/(pks*s(ilayer))
!      ENDDO
      phi(1)=pks*h(1)*(1.E+0-s(1))
      DO ilayer=2,nlayer
         phi(ilayer)=phi(ilayer-1)+
     &               pks*(h(ilayer-1)+h(ilayer))*.5E+0
     &                  *(s(ilayer-1)-s(ilayer))

      ENDDO

c       appel de la physique
c       --------------------


      CALL physiq (1,llm,nqmx,
     ,     firstcall,lastcall,
     ,     day,time,dtphys,
     ,     plev,play,phi,
     ,     u, v,temp, q,  
     ,     w,
C - sorties
     s     du, dv, dtemp, dq,dpsurf,tracerdyn)


c       evolution du vent : modele 1D
c       -----------------------------
 
c       la physique calcule les derivees temporelles de u et v.
c       on y rajoute betement un effet Coriolis.
c
c       DO ilayer=1,nlayer
c          du(ilayer)=du(ilayer)+ptif*(v(ilayer)-grv)
c          dv(ilayer)=dv(ilayer)+ptif*(-u(ilayer)+gru)
c       ENDDO

c       Pour certain test : pas de coriolis a l'equateur
c       if(lati(1).eq.0.) then
          DO ilayer=1,nlayer
             du(ilayer)=du(ilayer)+ (gru-u(ilayer))/1.e4
             dv(ilayer)=dv(ilayer)+ (grv-v(ilayer))/1.e4
          ENDDO
c       end if
c      
c
c       Calcul du temps au pas de temps suivant
c       ---------------------------------------
        firstcall=.false.
        time=time+dtphys/daysec
        IF (time.gt.1.E+0) then
            time=time-1.E+0
            day=day+1
        ENDIF

c       calcul des vitesses et temperature au pas de temps suivant
c       ----------------------------------------------------------

        DO ilayer=1,nlayer
           u(ilayer)=u(ilayer)+dtphys*du(ilayer)
           v(ilayer)=v(ilayer)+dtphys*dv(ilayer)
           temp(ilayer)=temp(ilayer)+dtphys*dtemp(ilayer)
        ENDDO

c       calcul des pressions au pas de temps suivant
c       ----------------------------------------------------------

           psurf=psurf+dtphys*dpsurf   ! evolution de la pression de surface
           DO ilevel=1,nlevel
              plev(ilevel)=ap(ilevel)+psurf*bp(ilevel)
           ENDDO
           DO ilayer=1,nlayer
                 play(ilayer)=aps(ilayer)+psurf*bps(ilayer)
           ENDDO

c       calcul traceur au pas de temps suivant
c       --------------------------------------

        DO iq = 1, nqmx
          DO ilayer=1,nlayer
             q(ilayer,iq)=q(ilayer,iq)+dtphys*dq(ilayer,iq)
          ENDDO
        END DO

c    ========================================================
c    GESTION DES SORTIE
c    ========================================================
      if(saveprofile)then
         OPEN(12,file='profile.out',form='formatted')
         write(12,*) tsurf
         DO ilayer=1,nlayermx
            write(12,*) temp(ilayer) !, play(ilayer) !AS12 only temp so that iprofile=8 can be used
         ENDDO
         CLOSE(12)
      endif


      ENDDO   ! fin de la boucle temporelle

c    ========================================================
      end                       !rcm1d
 
c***********************************************************************
c***********************************************************************
c     Subroutines Bidons utilise seulement en 3D, mais
c     necessaire a la compilation de rcm1d en 1D

      subroutine gr_fi_dyn
      RETURN
      END
 
c***********************************************************************
c***********************************************************************

#include "../dyn3d/disvert.F"