source: trunk/LMDZ.MARS/libf/dynphy_lonlat/phymars/start2archive.F @ 3493

c=======================================================================
      PROGRAM start2archive
c=======================================================================
c
c
c   Date:    01/1997
c   ----
c
c
c   Objet:   Passage des  fichiers netcdf d'etat initial "start" et
c   -----    "startfi" a un fichier netcdf unique "start_archive" 
c
c  "start_archive" est une banque d'etats initiaux:
c  On peut stocker plusieurs etats initiaux dans un meme fichier "start_archive"
c    (Veiller dans ce cas avoir un day_ini different pour chacun des start)
c 
c
c
c=======================================================================

      use infotrac, only: infotrac_init, nqtot, tname
      use comsoil_h, only: nsoilmx, inertiedat, inertiesoil,
     &                     nqsoil, qsoil
      use surfdat_h, only: ini_surfdat_h, qsurf,watercaptag
      use comsoil_h, only: ini_comsoil_h
!      use comgeomphy, only: initcomgeomphy
      use filtreg_mod, only: inifilr
      USE mod_const_mpi, ONLY: COMM_LMDZ
      use control_mod, only: planet_type
      USE comvert_mod, ONLY: ap,bp
      USE comconst_mod, ONLY: daysec,dtphys,rad,g,r,cpp
      USE temps_mod, ONLY: day_ini,hour_ini
      USE iniphysiq_mod, ONLY: iniphysiq
      USE phyetat0_mod, ONLY: phyetat0
      USE exner_hyb_m, ONLY: exner_hyb
      use comslope_mod, ONLY: nslope,def_slope,def_slope_mean,
     &                        subslope_dist
      USE comcstfi_h, only: pi
      use surfini_mod, only: surfini
! SSO parameters:
      USE surfdat_h, ONLY: phisfi, albedodat, z0, z0_default,
     &    zmea, zstd, zsig, zgam, zthe, hmons, summit, base
      implicit none

      include "dimensions.h"
      integer, parameter :: ngridmx = (2+(jjm-1)*iim - 1/jjm) 
      include "paramet.h"
      include "comdissip.h"
      include "comgeom.h"
      include "netcdf.inc"

c-----------------------------------------------------------------------
c   Declarations
c-----------------------------------------------------------------------

c variables dynamiques du GCM
c -----------------------------
      REAL vcov(ip1jm,llm),ucov(ip1jmp1,llm) ! vents covariants
      REAL teta(ip1jmp1,llm)                    ! temperature potentielle 
      REAL,ALLOCATABLE :: q(:,:,:)   ! champs advectes
      REAL pks(ip1jmp1)                      ! exner (f pour filtre)
      REAL pk(ip1jmp1,llm)
      REAL pkf(ip1jmp1,llm)
      REAL phis(ip1jmp1)                     ! geopotentiel au sol
      REAL masse(ip1jmp1,llm)                ! masse de l'atmosphere
      REAL ps(ip1jmp1)                       ! pression au sol
      REAL p3d(iip1, jjp1, llm+1)            ! pression aux interfaces
      
c Variable Physiques (grille physique)
c ------------------------------------
      REAL,ALLOCATABLE :: tsurf(:,:)        ! Surface temperature
      REAL,ALLOCATABLE :: tsoil(:,:,:) ! Soil temperature
      REAL,ALLOCATABLE :: watercap(:,:)        ! h2o ice layer
      REAL,ALLOCATABLE :: perennial_co2ice(:,:) ! co2 ice layer
      REAL :: tauscaling(ngridmx) ! dust conversion factor
      REAL:: totcloudfrac(ngridmx) ! sub-grid cloud fraction
      REAL q2(ngridmx,llm+1)
      REAL,ALLOCATABLE :: emis(:,:)
      REAL,ALLOCATABLE :: albedo(:,:,:)
      REAL wstar(ngridmx)
      INTEGER start,length
      PARAMETER (length = 100)
      REAL tab_cntrl_fi(length) ! tableau des parametres de startfi
      INTEGER*4 day_ini_fi

c Variable naturelle / grille scalaire
c ------------------------------------
      REAL T(ip1jmp1,llm),us(ip1jmp1,llm),vs(ip1jmp1,llm)
      REAL,ALLOCATABLE :: tsurfS(:,:)
      REAL,ALLOCATABLE :: tsoilS(:,:,:)
      REAL,ALLOCATABLE :: inertiesoilS(:,:,:)! Variable Soil Thermal Inertia  (obtained from PEM)
      REAL ithS(ip1jmp1,nsoilmx) ! Soil Thermal Inertia for inertie dat (present day climate)
      REAL,ALLOCATABLE :: watercapS(:,:)
      REAL,ALLOCATABLE :: perennial_co2iceS(:,:)
      REAL,ALLOCATABLE :: watercaptag_tmp(:)
      REAL,ALLOCATABLE :: watercaptagS(:)
      REAL :: tauscalingS(ip1jmp1)
      REAL :: totcloudfracS(ip1jmp1)
      REAL q2S(ip1jmp1,llm+1)
      REAL,ALLOCATABLE :: qsurfS(:,:,:)
      REAL,ALLOCATABLE :: emisS(:,:)
      REAL,ALLOCATABLE :: albedoS(:,:)
      REAL, ALLOCATABLE :: subslope_distS(:,:)

! For SSO parameters:
      REAL zmeaS(ip1jmp1)
      REAL zsigS(ip1jmp1)
      REAL zstdS(ip1jmp1)
      REAL zgamS(ip1jmp1)
      REAL ztheS(ip1jmp1)
      REAL albedodatS(ip1jmp1)
      REAL z0S(ip1jmp1)
      REAL hmonsS(ip1jmp1)
      REAL summitS(ip1jmp1)
      REAL baseS(ip1jmp1)

      logical :: add_sso_fields=.false. ! default, don't include SSO fields


c Variables intermediaires : vent naturel, mais pas coord scalaire
c----------------------------------------------------------------
      REAL vn(ip1jm,llm),un(ip1jmp1,llm)

c Autres  variables
c -----------------
      LOGICAL startdrs
      INTEGER Lmodif

      REAL ptotal, co2icetotal
      REAL timedyn,timefi !fraction du jour dans start, startfi
      REAL date

      CHARACTER*2 str2
      CHARACTER*80 fichier 
      data  fichier /'startfi'/

      INTEGER ij, l,i,j,isoil,iq,islope
      character*80      fichnom
      integer :: ierr,ntime
      integer :: igcm_co2
      integer :: nq,numvanle
      character(len=30) :: txt ! to store some text

c Netcdf
c-------
      integer varid,dimid,timelen 
      INTEGER nid,nid1

C get command line arguments
C here we assume and check that if there is an argument #1 then
C it should be --add-sso to signal adding SSO fileds to start_archive.nc

      CALL get_command_argument(1,txt,j,ierr)
      ! will return ierr==0 if there is an argument #1 to command line
      IF (ierr==0) THEN
        ! Check that argument is indeed "--add-sso" or signal the error
        IF (trim(txt)=="--add-sso") THEN
          add_sso_fields=.true.
          write(*,*) "SSO fields will be included in start_archive"
        ELSE
          write(*,*) "start2archive error: unexpected command line "//
     &    "argument: ",trim(txt)
          write(*,*) " (only --add-sso currently accepted)"
          write(*,*) "Might as well stop here."
          stop
        ENDIF
      ENDIF ! of IF (ierr==0)

c-----------------------------------------------------------------------
c   Initialisations 
c-----------------------------------------------------------------------

      CALL defrun_new(99, .TRUE. )

      planet_type='mars'

c=======================================================================
c Lecture des donnees
c=======================================================================
! Load tracer number and names:
      call infotrac_init

! allocate arrays:
      allocate(q(ip1jmp1,llm,nqtot))      

      fichnom = 'start.nc'
      CALL dynetat0(fichnom,vcov,ucov,teta,q,masse,
     .       ps,phis,timedyn)

c-----------------------------------------------------------------------
c   Initialisations 
c-----------------------------------------------------------------------

      CALL defrun_new(99, .FALSE. )
      call iniconst
      call inigeom
      call inifilr

! Initialize the physics
         CALL iniphysiq(iim,jjm,llm,
     &                  (jjm-1)*iim+2,comm_lmdz,
     &                  daysec,day_ini,dtphys,
     &                  rlatu,rlatv,rlonu,rlonv,
     &                  aire,cu,cv,rad,g,r,cpp,1)

      fichnom = 'startfi.nc'
      Lmodif=0

      allocate(tsurf(ngridmx,nslope))
      allocate(tsoil(ngridmx,nsoilmx,nslope))
      allocate(watercap(ngridmx,nslope))
      allocate(perennial_co2ice(ngridmx,nslope))
      allocate(emis(ngridmx,nslope))
      allocate(albedo(ngridmx,2,nslope))

      allocate(qsurfS(ip1jmp1,nqtot,nslope))
      allocate(tsurfS(ip1jmp1,nslope))
      allocate(tsoilS(ip1jmp1,nsoilmx,nslope))
      allocate(inertiesoilS(ip1jmp1,nsoilmx,nslope))
      allocate(watercapS(ip1jmp1,nslope))
      allocate(perennial_co2iceS(ip1jmp1,nslope))
      allocate(watercaptagS(ip1jmp1))
      allocate(emisS(ip1jmp1,nslope))
      allocate(albedoS(ip1jmp1,nslope))
      allocate(subslope_distS(ip1jmp1,nslope))

      CALL phyetat0(fichnom,0,Lmodif,nsoilmx,ngridmx,llm,nqtot,nqsoil,
     &      day_ini_fi,timefi,tsurf,tsoil,albedo,emis,q2,qsurf,qsoil,
     &      tauscaling,totcloudfrac,wstar,watercap,perennial_co2ice,
     &      def_slope, def_slope_mean,subslope_dist)

       ierr = NF_OPEN (fichnom, NF_NOWRITE,nid1)
       IF (ierr.NE.NF_NOERR) THEN
         write(6,*)' Pb d''ouverture du fichier'//fichnom
        CALL ABORT
       ENDIF
                                                
      ierr = NF_INQ_VARID (nid1, "controle", varid)
      IF (ierr .NE. NF_NOERR) THEN
       PRINT*, "start2archive: Le champ <controle> est absent"
       CALL abort
      ENDIF
#ifdef NC_DOUBLE
       ierr = NF_GET_VAR_DOUBLE(nid1, varid, tab_cntrl_fi)
#else
      ierr = NF_GET_VAR_REAL(nid1, varid, tab_cntrl_fi)
#endif
       IF (ierr .NE. NF_NOERR) THEN
          PRINT*, "start2archive: Lecture echoue pour <controle>"
          CALL abort
       ENDIF

         CALL surfini(ngridmx,nslope,qsurf)

      ierr = NF_CLOSE(nid1)

c-----------------------------------------------------------------------
c Controle de la synchro
c-----------------------------------------------------------------------
!mars a voir      if ((day_ini_fi.ne.day_ini).or.(abs(timefi-timedyn).gt.1.e-10))
      if ((mod(day_ini_fi,669).ne.mod(day_ini,669))) 
     &  stop ' Probleme de Synchro entre start et startfi !!!'


c *****************************************************************
c    Option : Reinitialisation des dates dans la premieres annees :
       do while (day_ini.ge.669)
          day_ini=day_ini-669
       enddo
c *****************************************************************

      CALL pression(ip1jmp1, ap, bp, ps, p3d)
      call exner_hyb(ip1jmp1, ps, p3d, pks, pk, pkf)

c=======================================================================
c Transformation EN VARIABLE NATURELLE / GRILLE SCALAIRE si necessaire
c=======================================================================
c  Les variables modeles dependent de la resolution. Il faut donc
c  eliminer les facteurs responsables de cette dependance
c  (pour utiliser newstart)
c=======================================================================

c-----------------------------------------------------------------------
c Vent   (depend de la resolution horizontale) 
c-----------------------------------------------------------------------
c
c ucov --> un  et  vcov --> vn
c un --> us  et   vn --> vs
c
c-----------------------------------------------------------------------

      call covnat(llm,ucov, vcov, un, vn) 
      call wind_scal(un,vn,us,vs) 

c-----------------------------------------------------------------------
c Temperature  (depend de la resolution verticale => de "sigma.def")
c-----------------------------------------------------------------------
c
c h --> T
c
c-----------------------------------------------------------------------

      DO l=1,llm
         DO ij=1,ip1jmp1
            T(ij,l)=teta(ij,l)*pk(ij,l)/cpp !mars deduit de l'equation dans newstart
         ENDDO
      ENDDO

c-----------------------------------------------------------------------
c Variable physique 
c-----------------------------------------------------------------------
c
c tsurf --> tsurfS
c watercap --> watercapS
c perennial_co2ice --> perennial_co2iceS
c tsoil --> tsoilS
c inertiesoil --> inertiesoilS
c inertiedat --> ithS
c emis --> emisS
c albedo --> albedoS
c q2 --> q2S
c qsurf --> qsurfS
c tauscaling --> tauscalingS
c totcloudfrac --> totcloudfracS
c
c-----------------------------------------------------------------------

      do islope=1,nslope
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,tsurf(:,islope),
     &    tsurfS(:,islope))
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,watercap(:,islope),
     &    watercapS(:,islope))
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,perennial_co2ice(:,islope),
     &    perennial_co2iceS(:,islope))
      call gr_fi_dyn(nsoilmx,ngridmx,iip1,jjp1,tsoil(:,:,islope),
     &    tsoilS(:,:,islope))
      call gr_fi_dyn(nsoilmx,ngridmx,iip1,jjp1,inertiesoil(:,:,islope),
     &    inertiesoilS(:,:,islope))
      ! Note: thermal inertia "inertiedat" is in comsoil.h
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,emis(:,islope),
     &     emisS(:,islope))
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,albedo(:,1,islope),
     &   albedoS(:,islope))
      call gr_fi_dyn(nqtot,ngridmx,iip1,jjp1,qsurf(:,:,islope),
     &   qsurfS(:,:,islope))
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,subslope_dist(:,islope),
     &    subslope_distS(:,islope))
      enddo
      call gr_fi_dyn(nsoilmx,ngridmx,iip1,jjp1,inertiedat,ithS)
      call gr_fi_dyn(llm+1,ngridmx,iip1,jjp1,q2,q2S)
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,tauscaling,tauscalingS)
      call gr_fi_dyn(1,ngridmx,iip1,jjp1,totcloudfrac,totcloudfracS)

      allocate(watercaptag_tmp(ngridmx))
      do ij=1,ngridmx
        if(watercaptag(ij)) then
        watercaptag_tmp(ij)=1
        else
        watercaptag_tmp(ij)=0
        endif
      enddo

      call gr_fi_dyn(1,ngridmx,iip1,jjp1,watercaptag_tmp(:),
     &    watercaptagS(:))

! SSO parameters, if needed:
      if (add_sso_fields) then
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,zmea,zmeaS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,zstd,zstdS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,zsig,zsigS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,zthe,ztheS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,zgam,zgamS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,albedodat,albedodatS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,z0,z0S)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,hmons,hmonsS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,summit,summitS)
        call gr_fi_dyn(1,ngridmx,iip1,jjp1,base,baseS)
      endif

c=======================================================================
c Info pour controler
c=======================================================================

      DO iq=1,nqtot
        if (trim(tname(iq)) .eq. "co2") then
           igcm_co2=iq
        endif
      enddo

      ptotal =  0.
      co2icetotal = 0.
      DO j=1,jjp1
         DO i=1,iim
           DO islope=1,nslope
           ptotal=ptotal+aire(i+(iim+1)*(j-1))*ps(i+(iim+1)*(j-1))/g
           co2icetotal = co2icetotal + 
     &        qsurfS(i+(iim+1)*(j-1),igcm_co2,islope)*
     &        aire(i+(iim+1)*(j-1))*
     &    subslope_distS(i+(iim+1)*(j-1),islope)/
     &    cos(pi*def_slope_mean(islope))
           ENDDO
         ENDDO
      ENDDO
      write(*,*)'Ancienne grille : masse de l''atm :',ptotal
      write(*,*)'Ancienne grille : masse de la glace CO2 :',co2icetotal

c-----------------------------------------------------------------------
c Passage de "ptotal" et "co2icetotal" par tab_cntrl_fi
c-----------------------------------------------------------------------

      tab_cntrl_fi(49) = ptotal
      tab_cntrl_fi(50) = co2icetotal

c=======================================================================
c Ecriture dans le fichier  "start_archive"
c=======================================================================

c-----------------------------------------------------------------------
c Ouverture de "start_archive" 
c-----------------------------------------------------------------------

      ierr = NF_OPEN ('start_archive.nc', NF_WRITE,nid)
 
c-----------------------------------------------------------------------
c  si "start_archive" n'existe pas:
c    1_ ouverture
c    2_ creation de l'entete dynamique ("ini_archive")
c-----------------------------------------------------------------------
c ini_archive:
c On met dans l'entete le tab_cntrl dynamique (1 a 16) 
c  On y ajoute les valeurs du tab_cntrl_fi (a partir de 51)
c  En plus les deux valeurs ptotal et co2icetotal (99 et 100)
c-----------------------------------------------------------------------

      if (ierr.ne.NF_NOERR) then
         write(*,*)'OK, Could not open file "start_archive.nc"'
         write(*,*)'So let s create a new "start_archive"'
         ierr = NF_CREATE('start_archive.nc', 
     &  IOR(NF_CLOBBER,NF_64BIT_OFFSET), nid)
         call ini_archive(nid,day_ini,phis,ithS,tab_cntrl_fi,
     &         def_slope,subslope_distS)
      endif

c-----------------------------------------------------------------------
c Ecriture de la coordonnee temps (date en jours)
c-----------------------------------------------------------------------

      date = day_ini + hour_ini
      ierr= NF_INQ_VARID(nid,"Time",varid)
      ierr= NF_INQ_DIMID(nid,"Time",dimid)
      ierr= NF_INQ_DIMLEN(nid,dimid,timelen)
      ntime=timelen+1

      write(*,*) "******************"
      write(*,*) "ntime",ntime
      write(*,*) "******************"
#ifdef NC_DOUBLE
      ierr= NF_PUT_VARA_DOUBLE(nid,varid,ntime,1,date)
#else
      ierr= NF_PUT_VARA_REAL(nid,varid,ntime,1,date)
#endif
      if (ierr.ne.NF_NOERR) then
         write(*,*) "time matter ",NF_STRERROR(ierr)
         stop
      endif

c-----------------------------------------------------------------------
c Ecriture des champs  (co2ice,emis,albedo,ps,Tsurf,T,u,v,q2,q,qsurf)
c-----------------------------------------------------------------------
c ATTENTION: q2 a une couche de plus!!!!
c    Pour creer un fichier netcdf lisible par grads,
c    On passe donc une des couches de q2 a part
c    comme une variable 2D (la couche au sol: "q2surf")
c    Les lmm autres couches sont nommees "q2atm" (3D) 
c-----------------------------------------------------------------------

      call write_archive(nid,ntime,'watercap','couche de glace h2o',
     &  'kg/m2',2,watercapS)
      call write_archive(nid,ntime,'perennial_co2ice',
     &'couche de glace co2','kg/m2',2,perennial_co2iceS)
      call write_archive(nid,ntime,'watercaptag','couche de glace h2o',
     &  'kg/m2',2,watercaptagS)
      call write_archive(nid,ntime,'tauscaling',
     &  'dust conversion factor',' ',2,tauscalingS)
      call write_archive(nid,ntime,'totcloudfrac',
     &  'sub grid cloud fraction',' ',2,totcloudfracS)
      call write_archive(nid,ntime,'emis','grd emis',' ',2,emisS)
      call write_archive(nid,ntime,'albedo','surface albedo',' ',
     &                             2,albedoS)
      call write_archive(nid,ntime,'ps','Psurf','Pa',2,ps)
      call write_archive(nid,ntime,'tsurf','surf T','K',2,tsurfS)
      call write_archive(nid,ntime,'temp','temperature','K',3,t)
      call write_archive(nid,ntime,'u','Vent zonal','m.s-1',3,us)
      call write_archive(nid,ntime,'v','Vent merid','m.s-1',3,vs)
      call write_archive(nid,ntime,'q2surf','wind variance','m2.s-2',2,
     .              q2S)
      call write_archive(nid,ntime,'q2atm','wind variance','m2.s-2',3,
     .              q2S(1,2))
! SSO parameters, if needed
      if (add_sso_fields) then
        call write_archive(nid,ntime,'ZMEA','zmea',' ',2,zmeaS)
        call write_archive(nid,ntime,'ZSTD','zstd',' ',2,zstdS)
        call write_archive(nid,ntime,'ZSIG','zsig',' ',2,zsigS)
        call write_archive(nid,ntime,'ZTHE','zthe',' ',2,ztheS)
        call write_archive(nid,ntime,'ZGAM','zgam',' ',2,zgamS)
        call write_archive(nid,ntime,'albedodat','albedodat',
     &                             ' ',2,albedodatS)
        call write_archive(nid,ntime,'z0','z0',' ',2,z0S)
        call write_archive(nid,ntime,'summit','summit',
     &                             ' ',2,summitS)
        call write_archive(nid,ntime,'hmons','hmons',' ',2,hmonsS)
        call write_archive(nid,ntime,'base','base',' ',2,baseS)
      endif

c-----------------------------------------------------------------------
c Ecriture du champs  q  ( q[1,nqtot] )
c-----------------------------------------------------------------------
      do iq=1,nqtot
c       write(str2,'(i2.2)') iq
c        call write_archive(nid,ntime,'q'//str2,'tracer','kg/kg',
c     .         3,q(1,1,iq))
        call write_archive(nid,ntime,tname(iq),'tracer','kg/kg',
     &         3,q(1,1,iq))
      end do
c-----------------------------------------------------------------------
c Ecriture du champs  qsurf  ( qsurf[1,nqtot] )
c-----------------------------------------------------------------------
      do iq=1,nqtot
c       write(str2,'(i2.2)') iq
c       call write_archive(nid,ntime,'qsurf'//str2,'Tracer on surface',
c     $  'kg.m-2',2,qsurfS(1,iq))
        txt=trim(tname(iq))//"_surf"
        call write_archive(nid,ntime,txt,'Tracer on surface',
     &  'kg.m-2',2,qsurfS(:,iq,:))
      enddo


c-----------------------------------------------------------------------
c Ecriture du champs  tsoil  ( Tg[1,10] )
c-----------------------------------------------------------------------
c "tsoil" Temperature au sol definie dans 10 couches dans le sol
c   Les 10 couches sont lues comme 10 champs 
c  nommees Tg[1,10]

c      do isoil=1,nsoilmx
c       write(str2,'(i2.2)') isoil
c       call write_archive(nid,ntime,'Tg'//str2,'Ground Temperature ',
c     .   'K',2,tsoilS(1,isoil))
c      enddo

! Write soil temperatures tsoil
      call write_archive(nid,ntime,'tsoil','Soil temperature',
     &     'K',-3,tsoilS(:,:,:))
! Write soil thermal inertia
      call write_archive(nid,ntime,'inertiesoil','Soil TI',
     &     'J.s-1/2.m-2.K-1',-3,inertiesoilS(:,:,:))
! Write soil thermal inertia for current climate
      call write_archive(nid,ntime,'inertiedat',
     &     'Soil thermal inertia (present day TI)',
     &     'J.s-1/2.m-2.K-1',-3,ithS)

! Write (0D) volumetric heat capacity (stored in comsoil.h)
!      call write_archive(nid,ntime,'volcapa',
!     &     'Soil volumetric heat capacity',
!     &     'J.m-3.K-1',0,volcapa)
! Note: no need to write volcapa, it is stored in "controle" table

      ierr=NF_CLOSE(nid)
c-----------------------------------------------------------------------
c Fin 
c-----------------------------------------------------------------------

      write(*,*) "startarchive: all is well that ends well"
      
      end