IF (ok_instan) THEN
c
      ndex2d = 0
      ndex3d = 0
c
c Champs 2D:
c
         zsto = dtime * ecrit_ins
         zout = dtime * ecrit_ins
         itau_w = itau_phy + itap

         i = NINT(zout/zsto)
      CALL gr_fi_ecrit(1,klon,iim,jjmp1,pphis,zx_tmp_2d)
      CALL histwrite(nid_ins,"phis",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
         i = NINT(zout/zsto)
      CALL gr_fi_ecrit(1,klon,iim,jjmp1,paire,zx_tmp_2d)
      CALL histwrite(nid_ins,"aire",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)

      DO i = 1, klon
         zx_tmp_fi2d(i) = paprs(i,1)
      ENDDO
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d,zx_tmp_2d)
      CALL histwrite(nid_ins,"psol",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      DO i = 1, klon
         zx_tmp_fi2d(i) = rain_fall(i) + snow_fall(i)
      ENDDO
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d,zx_tmp_2d)
      CALL histwrite(nid_ins,"precip",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      DO i = 1, klon
         zx_tmp_fi2d(i) = rain_lsc(i) + snow_lsc(i)
      ENDDO
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d,zx_tmp_2d)
      CALL histwrite(nid_ins,"plul",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      DO i = 1, klon
         zx_tmp_fi2d(i) = rain_con(i) + snow_con(i)
      ENDDO
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d,zx_tmp_2d)
      CALL histwrite(nid_ins,"pluc",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)

      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zxtsol,zx_tmp_2d)
      CALL histwrite(nid_ins,"tsol",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
cccIM
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zt2m, zx_tmp_2d)
      CALL histwrite(nid_ins,"t2m",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zq2m, zx_tmp_2d)
      CALL histwrite(nid_ins,"q2m",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zu10m, zx_tmp_2d)
      CALL histwrite(nid_ins,"u10m",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
C
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zv10m, zx_tmp_2d)
      CALL histwrite(nid_ins,"v10m",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, snow_fall,zx_tmp_2d)
      CALL histwrite(nid_ins,"snow",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)

      CALL gr_fi_ecrit(1, klon,iim,jjmp1, cdragm,zx_tmp_2d)
      CALL histwrite(nid_ins,"cdrm",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, cdragh,zx_tmp_2d)
      CALL histwrite(nid_ins,"cdrh",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, toplw,zx_tmp_2d)
      CALL histwrite(nid_ins,"topl",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, evap,zx_tmp_2d)
      CALL histwrite(nid_ins,"evap",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, solsw,zx_tmp_2d)
      CALL histwrite(nid_ins,"sols",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, sollw,zx_tmp_2d)
      CALL histwrite(nid_ins,"soll",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, sollwdown,zx_tmp_2d)
      CALL histwrite(nid_ins,"solldown",itau_w,zx_tmp_2d,iim*jjmp1,
     .                ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, bils,zx_tmp_2d)
      CALL histwrite(nid_ins,"bils",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, sens,zx_tmp_2d)
      CALL histwrite(nid_ins,"sens",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, fder,zx_tmp_2d)
      CALL histwrite(nid_ins,"fder",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, d_ts(1,is_oce),zx_tmp_2d)
      CALL histwrite(nid_ins,"dtsvdfo",itau_w,zx_tmp_2d,iim*jjmp1,
     .               ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, d_ts(1,is_ter),zx_tmp_2d)
      CALL histwrite(nid_ins,"dtsvdft",itau_w,zx_tmp_2d,iim*jjmp1,
     .               ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, d_ts(1,is_lic),zx_tmp_2d)
      CALL histwrite(nid_ins,"dtsvdfg",itau_w,zx_tmp_2d,iim*jjmp1,
     .               ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, d_ts(1,is_sic),zx_tmp_2d)
      CALL histwrite(nid_ins,"dtsvdfi",itau_w,zx_tmp_2d,iim*jjmp1,
     .               ndex2d)

      DO nsrf = 1, nbsrf
CXXX
        zx_tmp_fi2d(1 : klon) = pctsrf( 1 : klon, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"pourc_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C 
        zx_tmp_fi2d(1 : klon) = fluxt( 1 : klon, 1, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"sens_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C
        zx_tmp_fi2d(1 : klon) = fluxlat( 1 : klon, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"lat_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C
        zx_tmp_fi2d(1 : klon) = ftsol( 1 : klon, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"tsol_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C
        zx_tmp_fi2d(1 : klon) = fluxu( 1 : klon, 1, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"taux_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C      
        zx_tmp_fi2d(1 : klon) = fluxv( 1 : klon, 1, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"tauy_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d)
C
        zx_tmp_fi2d(1 : klon) = frugs( 1 : klon, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"rugs_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C
        zx_tmp_fi2d(1 : klon) = falbe( 1 : klon, nsrf)
        CALL gr_fi_ecrit(1, klon,iim,jjmp1, zx_tmp_fi2d , zx_tmp_2d)
        CALL histwrite(nid_ins,"albe_"//clnsurf(nsrf),itau_w,
     $      zx_tmp_2d,iim*jjmp1,ndex2d) 
C 
      END DO  
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, albsol,zx_tmp_2d)
      CALL histwrite(nid_ins,"albs",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, albsollw,zx_tmp_2d)
      CALL histwrite(nid_ins,"albslw",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zxsnow,zx_tmp_2d)
      CALL histwrite(nid_ins,"snow_mass",itau_w,zx_tmp_2d,iim*jjmp1,
     .               ndex2d)
c
      CALL gr_fi_ecrit(1, klon,iim,jjmp1, zxrugs,zx_tmp_2d)
      CALL histwrite(nid_ins,"rugs",itau_w,zx_tmp_2d,iim*jjmp1,ndex2d)
c
c Champs 3D:
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, t_seri, zx_tmp_3d)
      CALL histwrite(nid_ins,"temp",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, u_seri, zx_tmp_3d)
      CALL histwrite(nid_ins,"vitu",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, v_seri, zx_tmp_3d)
      CALL histwrite(nid_ins,"vitv",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, zphi, zx_tmp_3d)
      CALL histwrite(nid_ins,"geop",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, pplay, zx_tmp_3d)
      CALL histwrite(nid_ins,"pres",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, d_t_vdf, zx_tmp_3d)
      CALL histwrite(nid_ins,"dtvdf",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)
c
      CALL gr_fi_ecrit(klev,klon,iim,jjmp1, d_q_vdf, zx_tmp_3d)
      CALL histwrite(nid_ins,"dqvdf",itau_w,zx_tmp_3d,
     .                                   iim*jjmp1*klev,ndex3d)

c
      if (ok_sync) then
        call histsync(nid_ins)
      endif
      ENDIF