program rcm1d

! to use  'getin'
      use ioipsl_getincom, only: getin
      use dimphy, only : init_dimphy
      use mod_grid_phy_lmdz, only : regular_lonlat
      use infotrac, only: nqtot, tname
      use surfdat_h, only: albedodat, phisfi, dryness, watercaptag,
     &                     zmea, zstd, zsig, zgam, zthe,
     &                     emissiv, emisice, iceradius,
     &                     dtemisice
      use comdiurn_h, only: sinlat, coslat, sinlon, coslon
      use comsoil_h, only: nsoilmx, layer, mlayer, inertiedat, volcapa
      use phyredem, only: physdem0,physdem1
      use geometry_mod, only: init_geometry
      use slab_ice_h, only: noceanmx
      use planete_mod, only: apoastr,periastr,year_day,peri_day,
     &         obliquit,nres,z0,lmixmin,emin_turb,coefvis,coefir,
     &         timeperi,e_elips,p_elips
      use comcstfi_mod, only: pi, cpp, rad, g, r,
     &                        mugaz, rcp, omeg
      use time_phylmdz_mod, only: daysec, dtphys, day_step, ecritphy,
     &                            nday, iphysiq
      use callkeys_mod, only: tracer,check_cpp_match,rings_shadow,
     &	                      specOLR,water,pceil,ok_slab_ocean
      USE comvert_mod, ONLY: ap,bp,aps,bps,pa,preff
      USE logic_mod, ONLY: hybrid,autozlevs
      use regular_lonlat_mod, only: init_regular_lonlat
      use planete_mod, only: ini_planete_mod
      use physics_distribution_mod, only: init_physics_distribution
      use regular_lonlat_mod, only: init_regular_lonlat
      use mod_interface_dyn_phys, only: init_interface_dyn_phys
      use inifis_mod, only: inifis
      use physiq_mod, only: physiq
      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 "netcdf.inc"
#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(llm)        ! Pressure at the middle of the layers (Pa)
      REAL plev(llm+1)      ! intermediate pressure levels (pa)
      REAL psurf,tsurf(1)      
      REAL u(llm),v(llm)    ! zonal, meridional wind
      REAL gru,grv          ! prescribed "geostrophic" background wind
      REAL temp(llm)        ! temperature at the middle of the layers
      REAL,ALLOCATABLE :: q(:,:)      ! tracer mixing ratio (e.g. kg/kg)
      REAL,ALLOCATABLE :: qsurf(:)    ! tracer surface budget (e.g. kg.m-2)
      REAL,ALLOCATABLE :: tsoil(:)    ! subsurface soil 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(1)               ! surface layer
      REAL q2(llm+1)             ! Turbulent Kinetic Energy
      REAL zlay(llm)             ! altitude estimee dans les couches (km)

c    Physical and dynamical tandencies (e.g.  m.s-2, K/s, Pa/s)
      REAL du(llm),dv(llm),dtemp(llm)
      REAL dudyn(llm),dvdyn(llm),dtempdyn(llm)
      REAL dpsurf(1)    
      REAL,ALLOCATABLE :: dq(:,:)
      REAL,ALLOCATABLE :: dqdyn(:,:)

c   Various intermediate variables
!      INTEGER thermo
      REAL zls
      REAL phi(llm),h(llm),s(llm)
      REAL pks, ptif, w(llm)
      INTEGER ierr, aslun
      REAL tmp1(0:llm),tmp2(0:llm)
      integer :: nq !=1 ! number of tracers
 
      character*2 str2
      character (len=7) :: str7
      character(len=44) :: txt

      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(llm)

!     added by BC
      REAL cloudfrac(1,llm)
      REAL hice(1),totcloudfrac(1)

!     added by BC for ocean
      real rnat(1)
      REAL tslab(1,noceanmx),tsea_ice(1),sea_ice(1)
      real pctsrf_sic(1)



!     added by AS to avoid the use of adv trac common
      character*20,allocatable :: nametrac(:)   ! name of the tracer (no need for adv trac common)

      real :: latitude(1), longitude(1), cell_area(1)

c=======================================================================
c INITIALISATION
c=======================================================================
! initialize "serial/parallel" related stuff
!      CALL init_phys_lmdz(iim,jjm+1,llm,1,(/(jjm-1)*iim+2/))
!      CALL init_phys_lmdz(1,1,llm,1,(/1/))
!      call initcomgeomphy

      !! those are defined in surfdat_h.F90
      IF (.not. ALLOCATED(albedodat)) ALLOCATE(albedodat(1))
      IF (.not. ALLOCATED(phisfi)) ALLOCATE(phisfi(1))
      IF (.not. ALLOCATED(zmea)) ALLOCATE(zmea(1))
      IF (.not. ALLOCATED(zstd)) ALLOCATE(zstd(1))
      IF (.not. ALLOCATED(zsig)) ALLOCATE(zsig(1))
      IF (.not. ALLOCATED(zgam)) ALLOCATE(zgam(1))
      IF (.not. ALLOCATED(zthe)) ALLOCATE(zthe(1))
      IF (.not. ALLOCATED(dryness)) ALLOCATE(dryness(1))
      IF (.not. ALLOCATED(watercaptag)) ALLOCATE(watercaptag(1))
      !! those are defined in comdiurn_h.F90
      IF (.not.ALLOCATED(sinlat)) ALLOCATE(sinlat(1))
      IF (.not.ALLOCATED(coslat)) ALLOCATE(coslat(1))
      IF (.not.ALLOCATED(sinlon)) ALLOCATE(sinlon(1))
      IF (.not.ALLOCATED(coslon)) ALLOCATE(coslon(1))

      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  

      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") ! Ehouarn: delay this to after inifis

! 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
          nqtot=nq ! set value of nqtot (in infotrac module) as nq
          if (ierr.ne.0) then
            write(*,*) "rcm1d: error reading number of tracers"
            write(*,*) "   (first line of traceur.def) "
            stop
          endif
          if (nq>0) then
            allocate(tname(nq))
            allocate(q(llm,nq))
            allocate(qsurf(nq))
            allocate(dq(llm,nq))
            allocate(dqdyn(llm,nq))
          else
            write(*,*) "rcm1d: Error. You set tracer=.true."
            write(*,*) "       but # of tracers in traceur.def is ",nq
            stop
          endif
        
          do iq=1,nq
          ! minimal version, just read in the tracer names, 1 per line
            read(90,*,iostat=ierr) tname(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 (tname(iq)=="co2_ice") then
             i_co2_ice=iq
           elseif (tname(iq)=="h2o_ice") then
             i_h2o_ice=iq
           elseif (tname(iq)=="h2o_vap") then
             i_h2o_vap=iq
           endif
         enddo
        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 ! of if (tracer)
        nqtot=0
        nq=0
        ! still, make allocations for 1 dummy tracer
        allocate(tname(1)) 
        allocate(qsurf(1))
        allocate(q(llm,1))
        allocate(dq(llm,1))
      
       ! Check that tracer boolean is compliant with number of tracers
       ! -- otherwise there is an error (and more generally we have to be consistent)
       if (nq .ge. 1) then
          write(*,*) "------------------------------"
          write(*,*) "rcm1d: You set tracer=.false."
          write(*,*) " But set number of tracers to ",nq
          write(*,*) " > If you want tracers, set tracer=.true."
          write(*,*) "------------------------------"
          stop
       endif
      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
      cell_area(1)=1.E+0 !JL+EM to have access to the area in the diagfi.nc files.
     !!! GEOPOTENTIAL. useless in 1D because control by surface pressure
      phisfi(1)=0.E+0
     !!! LATITUDE. can be set. 
      latitude=0 ! default value for latitude
      PRINT *,'latitude (in degrees) ?'
      call getin("latitude",latitude)
      write(*,*) " latitude = ",latitude
      latitude=latitude*pi/180.E+0
     !!! LONGITUDE. useless in 1D.
      longitude=0.E+0
      longitude=longitude*pi/180.E+0


!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!! 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 RCM1D.DEF."
          STOP
      ELSE
          PRINT *,"--> g = ",g
      ENDIF

      rad = -99999.
      PRINT *,'PLANETARY RADIUS in m ?'
      call getin("rad",rad)
      ! Planetary  radius is needed to compute shadow of the rings
      IF (rad.eq.-99999. .and. rings_shadow .eqv. .true.) THEN
          PRINT *,"STOP. I NEED rad IN RCM1D.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 RCM1D.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 RCM1D.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 RCM1D.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 RCM1D.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 RCM1D.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 RCM1D.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 RCM1D.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=llm
      nlevel=nlayer+1

      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

      iphysiq=1 ! in 1D model physics are called evry time 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
      nday=ndt

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

      ! initializations, as with iniphysiq.F90 for the 3D GCM
      call init_physics_distribution(regular_lonlat,4,
     &                               1,1,1,nlayer,1)
      call init_interface_dyn_phys
      CALL init_regular_lonlat(1,1,longitude,latitude,
     &                   (/0.,0./),(/0.,0./))
      call init_geometry(1,longitude,latitude,
     &                   (/0.,0.,0.,0./),(/0.,0.,0.,0./),
     &                   cell_area)
      call init_dimphy(1,nlayer) ! Initialize dimphy module
      call ini_planete_mod(nlayer,preff,ap,bp)

!!! 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
      cpp=1.d-7 !JL because we divide by cpp in inifis, there may be a more elegant solution
      CALL inifis(1,llm,nq,day0,daysec,nday,dtphys,
     .            latitude,longitude,cell_area,rad,g,r,cpp)

      nsoil=nsoilmx
      allocate(tsoil(nsoilmx))
      !! those are defined in comsoil_h.F90
      IF (.not.ALLOCATED(layer)) ALLOCATE(layer(nsoilmx))
      IF (.not.ALLOCATED(mlayer)) ALLOCATE(mlayer(0:nsoilmx-1))
      IF (.not.ALLOCATED(inertiedat)) ALLOCATE(inertiedat(1,nsoilmx))

! At this point, both getin() and getin_p() functions have been used,
! and the run.def file can be removed.
      call system("rm -rf run.def")

!!! We check everything is OK.
      PRINT *,"CHECK"
      PRINT *,"--> mugaz = ",mugaz
      PRINT *,"--> cpp = ",cpp
      r = 8.314511E+0 * 1000.E+0 / mugaz
      rcp = r / cpp

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,nq
        DO ilayer=1,nlayer
           q(ilayer,iq) = 0.
        ENDDO
      ENDDO
     
      DO iq=1,nq
        qsurf(iq) = 0.
      ENDDO
      
      if (tracer) then ! Initialize tracers here. 
             
         write(*,*) "rcm1d : initializing tracers profiles"

         do iq=1,nq
         
            txt=""
            write(txt,"(a)") tname(iq)
            write(*,*)"  tracer:",trim(txt)
              
            ! CO2
            if (txt.eq."co2_ice") then
               q(:,iq)=0.   ! kg/kg of atmosphere
               qsurf(iq)=0. ! kg/m2 at the surface               
               ! Look for a "profile_co2_ice" input file
               open(91,file='profile_co2_ice',status='old',
     &         form='formatted',iostat=ierr)
               if (ierr.eq.0) then
                  read(91,*) qsurf(iq)
                  do ilayer=1,nlayer
                     read(91,*) q(ilayer,iq)
                  enddo
               else
                  write(*,*) "No profile_co2_ice file!"
               endif
               close(91)
            endif ! of if (txt.eq."co2")
          
            ! WATER VAPOUR
            if (txt.eq."h2o_vap") then
               q(:,iq)=0.   ! kg/kg of atmosphere
               qsurf(iq)=0. ! kg/m2 at the surface
               ! Look for a "profile_h2o_vap" input file   
               open(91,file='profile_h2o_vap',status='old',
     &         form='formatted',iostat=ierr)
               if (ierr.eq.0) then
                  read(91,*) qsurf(iq)
                  do ilayer=1,nlayer
                     read(91,*) q(ilayer,iq)
                  enddo
               else
                  write(*,*) "No profile_h2o_vap file!"
               endif
               close(91)
            endif ! of if (txt.eq."h2o_vap")
            
            ! WATER ICE
            if (txt.eq."h2o_ice") then
               q(:,iq)=0.   ! kg/kg of atmosphere
               qsurf(iq)=0. ! kg/m2 at the surface
               ! Look for a "profile_h2o_ice" input file
               open(91,file='profile_h2o_ice',status='old',
     &         form='formatted',iostat=ierr)
               if (ierr.eq.0) then
                  read(91,*) qsurf(iq)
                  do ilayer=1,nlayer
                     read(91,*) q(ilayer,iq)
                  enddo
               else
                  write(*,*) "No profile_h2o_ice file!"
               endif
               close(91)
            endif ! of if (txt.eq."h2o_ice")

         enddo ! of do iq=1,nq
         
      endif ! of tracer

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

! To be clean, also set vertical winds to zero
      w(1:nlayer)=0

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(1)=emissiv ! default value for emissivity
      PRINT *,'Emissivity of bare ground ?'
      call getin("emis",emis(1))
      write(*,*) " emis = ",emis(1)
      emissiv=emis(1) ! 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 (latitude(1).ge.0) then ! northern hemisphere
              emis(1)=emisice(1)
            else ! southern hemisphere
              emis(1)=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(1)=tmp2(0)
      DO ilayer=1,nlayer
        temp(ilayer)=tmp2(ilayer)
      ENDDO
      print*,"check"
      PRINT*,"INPUT SURFACE TEMPERATURE",tsurf(1)
      PRINT*,"INPUT TEMPERATURE PROFILE",temp

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(1)  ! 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


! Initialize slab ocean
! -----------------
      rnat=1. ! default value for rnat
      if(inertiedat(1,1).GE.10000.)then
         rnat=0.
      endif
      if(ok_slab_ocean)then
      rnat=0.
      tslab(1,1)=tsurf(1)
      tslab(1,2)=tsurf(1)
      tsea_ice=tsurf
      pctsrf_sic=0.
      sea_ice=0.
      endif



c  Write a "startfi" file
c  --------------------
c  This file will be read during the first call to "physiq".
c  It is needed to transfert physics variables to "physiq"...

      call physdem0("startfi.nc",longitude,latitude,nsoilmx,1,llm,nq,
     &              dtphys,real(day0),time,cell_area,
     &              albedodat,inertiedat,zmea,zstd,zsig,zgam,zthe)
      call physdem1("startfi.nc",nsoilmx,1,llm,nq,
     &                dtphys,time,
     &                tsurf,tsoil,emis,q2,qsurf,
     &                cloudfrac,totcloudfrac,hice, 
     &                rnat,pctsrf_sic,tslab,tsea_ice,sea_ice)

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=', latitude(1)*180./pi
!         write(103,*) 'RunEnd - Atmos. Temp. File'
!         write(103,*) 'RunEnd - Atmos. Temp. File'
!         write(104,*) 'Ls=',zls*180./pi
!         write(104,*) 'Lat=', latitude(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,nq,
     .     tname,
     ,     firstcall,lastcall,
     ,     day,time,dtphys,
     ,     plev,play,phi,
     ,     u, v,temp, q,  
     ,     w,
C - sorties
     s     du, dv, dtemp, dq,dpsurf)


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(latitude(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(1)   ! 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, nq
          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,llm
            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

      write(*,*) "rcm1d: Everything is cool."

c    ========================================================
      end                       !rcm1d