MODULE limistate_2 !!====================================================================== !! *** MODULE limistate_2 *** !! Initialisation of diagnostics ice variables !!====================================================================== !! History : 1.0 ! 01-04 (C. Ethe, G. Madec) Original code !! 2.0 ! 03-08 (G. Madec) add lim_istate_init !! ! 04-04 (S. Theetten) initialization from a file !! ! 06-07 (S. Masson) IOM to read the restart !! ! 07-10 (G. Madec) surface module !!-------------------------------------------------------------------- #if defined key_lim2 !!---------------------------------------------------------------------- !! 'key_lim2' : LIM 2.0 sea-ice model !!---------------------------------------------------------------------- !! lim_istate_2 : Initialisation of diagnostics ice variables !! lim_istate_init_2 : initialization of ice state and namelist read !!---------------------------------------------------------------------- USE phycst USE par_ice_2 ! ice parameters USE dom_ice_2 USE eosbn2 ! equation of state USE lbclnk USE oce USE ice_2 USE iom USE in_out_manager USE lib_fortran ! Fortran utilities (allows no signed zero when 'key_nosignedzero' defined) IMPLICIT NONE PRIVATE PUBLIC lim_istate_2 ! routine called by lim_init_2.F90 ! !! ** namelist (namiceini) ** LOGICAL :: ln_limini ! Ice initialization state REAL(wp) :: ttest ! threshold water temperature for initial sea ice REAL(wp) :: hninn ! initial snow thickness in the north REAL(wp) :: hginn ! initial ice thickness in the north REAL(wp) :: alinn ! initial leads area in the north REAL(wp) :: hnins ! initial snow thickness in the south REAL(wp) :: hgins ! initial ice thickness in the south REAL(wp) :: alins ! initial leads area in the south REAL(wp) :: zero = 0.e0 ! constant value = 0 REAL(wp) :: zone = 1.e0 ! constant value = 1 !!---------------------------------------------------------------------- !! NEMO/LIM2 3.3 , UCL - NEMO Consortium (2010) !! $Id$ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- CONTAINS SUBROUTINE lim_istate_2 !!------------------------------------------------------------------- !! *** ROUTINE lim_istate_2 *** !! !! ** Purpose : defined the sea-ice initial state !! !! ** Method : restart from a state defined in a binary file !! or from arbitrary sea-ice conditions !!-------------------------------------------------------------------- INTEGER :: ji, jj, jk ! dummy loop indices REAL(wp) :: zidto ! temporary scalar !-------------------------------------------------------------------- CALL lim_istate_init_2 ! reading the initials parameters of the ice IF( .NOT. ln_limini ) THEN CALL eos_fzp( tsn(:,:,1,jp_sal), tfu(:,:) ) ! freezing/melting point of sea water [Celcius] tfu(:,:) = tfu(:,:) * tmask(:,:,1) DO jj = 1, jpj DO ji = 1, jpi ! ! ice if sst <= t-freez + ttest IF( tsn(ji,jj,1,jp_tem) - tfu(ji,jj) >= ttest ) THEN ; zidto = 0.e0 ! no ice ELSE ; zidto = 1.e0 ! ice ENDIF ! IF( fcor(ji,jj) >= 0.e0 ) THEN !-- Northern hemisphere. hicif(ji,jj) = zidto * hginn frld(ji,jj) = zidto * alinn + ( 1.0 - zidto ) * 1.0 hsnif(ji,jj) = zidto * hninn ELSE !--- Southern hemisphere. hicif(ji,jj) = zidto * hgins frld(ji,jj) = zidto * alins + ( 1.0 - zidto ) * 1.0 hsnif(ji,jj) = zidto * hnins ENDIF END DO END DO tfu(:,:) = tfu(:,:) + rt0 ! ftu converted from Celsius to Kelvin (rt0 over land) sist (:,:) = tfu(:,:) tbif (:,:,1) = tfu(:,:) tbif (:,:,2) = tfu(:,:) tbif (:,:,3) = tfu(:,:) ENDIF fsbbq (:,:) = 0.e0 qstoif(:,:) = 0.e0 u_ice (:,:) = 0.e0 v_ice (:,:) = 0.e0 !--- Moments for advection. sxice (:,:) = 0.e0 ; sxsn (:,:) = 0.e0 ; sxa (:,:) = 0.e0 syice (:,:) = 0.e0 ; sysn (:,:) = 0.e0 ; sya (:,:) = 0.e0 sxxice(:,:) = 0.e0 ; sxxsn(:,:) = 0.e0 ; sxxa (:,:) = 0.e0 syyice(:,:) = 0.e0 ; syysn(:,:) = 0.e0 ; syya (:,:) = 0.e0 sxyice(:,:) = 0.e0 ; sxysn(:,:) = 0.e0 ; sxya (:,:) = 0.e0 sxc0 (:,:) = 0.e0 ; sxc1 (:,:) = 0.e0 ; sxc2 (:,:) = 0.e0 syc0 (:,:) = 0.e0 ; syc1 (:,:) = 0.e0 ; syc2 (:,:) = 0.e0 sxxc0 (:,:) = 0.e0 ; sxxc1(:,:) = 0.e0 ; sxxc2(:,:) = 0.e0 syyc0 (:,:) = 0.e0 ; syyc1(:,:) = 0.e0 ; syyc2(:,:) = 0.e0 sxyc0 (:,:) = 0.e0 ; sxyc1(:,:) = 0.e0 ; sxyc2(:,:) = 0.e0 sxst (:,:) = 0.e0 syst (:,:) = 0.e0 sxxst (:,:) = 0.e0 syyst (:,:) = 0.e0 sxyst (:,:) = 0.e0 #if ! defined key_lim2_vp stress1_i (:,:) = 0._wp ! EVP rheology stress2_i (:,:) = 0._wp stress12_i(:,:) = 0._wp #endif !-- lateral boundary conditions CALL lbc_lnk( hicif, 'T', 1. ) CALL lbc_lnk( frld , 'T', 1. ) ! C A U T I O N frld = 1 over land and lbc_lnk put zero along ! ************* closed boundaries herefore we force to one over land frld(:,:) = tms(:,:) * frld(:,:) + ( 1. - tms(:,:) ) CALL lbc_lnk( hsnif, 'T', 1. ) CALL lbc_lnk( sist , 'T', 1. , pval = rt0 ) ! set rt0 on closed boundary (required by bulk formulation) DO jk = 1, jplayersp1 CALL lbc_lnk(tbif(:,:,jk), 'T', 1. ) END DO CALL lbc_lnk( fsbbq , 'T', 1. ) CALL lbc_lnk( qstoif , 'T', 1. ) END SUBROUTINE lim_istate_2 SUBROUTINE lim_istate_init_2 !!------------------------------------------------------------------- !! *** ROUTINE lim_istate_init_2 *** !! !! ** Purpose : Definition of initial state of the ice !! !! ** Method : Read the namiceini namelist and check the parameter !! values called at the first timestep (nit000) !! !! ** input : Namelist namiceini !!------------------------------------------------------------------- INTEGER :: inum_ice INTEGER :: ji,jj INTEGER :: ios ! Local integer output status for namelist read NAMELIST/namiceini/ ln_limini, ttest, hninn, hginn, alinn, & & hnins, hgins, alins !!------------------------------------------------------------------- REWIND( numnam_ice_ref ) ! Namelist namiceini in reference namelist : Ice initial state READ ( numnam_ice_ref, namiceini, IOSTAT = ios, ERR = 901) 901 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namiceini in reference namelist', lwp ) REWIND( numnam_ice_cfg ) ! Namelist namiceini in configuration namelist : Ice initial state READ ( numnam_ice_cfg, namiceini, IOSTAT = ios, ERR = 902 ) 902 IF( ios /= 0 ) CALL ctl_nam ( ios , 'namiceini in configuration namelist', lwp ) IF(lwm) WRITE ( numoni, namiceini ) ! IF(lwp) THEN WRITE(numout,*) WRITE(numout,*) 'lim_istate_init_2 : ice parameters inititialisation ' WRITE(numout,*) '~~~~~~~~~~~~~~~~~' WRITE(numout,*) ' threshold water temp. for initial sea-ice ttest = ', ttest WRITE(numout,*) ' initial snow thickness in the north hninn = ', hninn WRITE(numout,*) ' initial ice thickness in the north hginn = ', hginn WRITE(numout,*) ' initial leads area in the north alinn = ', alinn WRITE(numout,*) ' initial snow thickness in the south hnins = ', hnins WRITE(numout,*) ' initial ice thickness in the south hgins = ', hgins WRITE(numout,*) ' initial leads area in the south alins = ', alins WRITE(numout,*) ' Ice state initialization using input file ln_limini = ', ln_limini ENDIF IF( ln_limini ) THEN ! Ice initialization using input file ! CALL iom_open( 'Ice_initialization.nc', inum_ice ) ! IF( inum_ice > 0 ) THEN IF(lwp) WRITE(numout,*) IF(lwp) WRITE(numout,*) ' ice state initialization with : Ice_initialization.nc' CALL iom_get( inum_ice, jpdom_data, 'hicif', hicif ) CALL iom_get( inum_ice, jpdom_data, 'hsnif', hsnif ) CALL iom_get( inum_ice, jpdom_data, 'frld' , frld ) CALL iom_get( inum_ice, jpdom_data, 'ts' , sist ) CALL iom_get( inum_ice, jpdom_unknown, 'tbif', tbif(1:nlci,1:nlcj,:), & & kstart = (/ mig(1),mjg(1),1 /), kcount = (/ nlci,nlcj,jplayersp1 /) ) ! put some values in the extra-halo... DO jj = nlcj+1, jpj ; tbif(1:nlci,jj,:) = tbif(1:nlci,nlej,:) ; END DO DO ji = nlci+1, jpi ; tbif(ji ,: ,:) = tbif(nlei ,: ,:) ; END DO CALL iom_close( inum_ice) ! ENDIF ENDIF ! END SUBROUTINE lim_istate_init_2 #else !!---------------------------------------------------------------------- !! Default option : Empty module NO LIM 2.0 sea-ice model !!---------------------------------------------------------------------- CONTAINS SUBROUTINE lim_istate_2 ! Empty routine END SUBROUTINE lim_istate_2 #endif !!====================================================================== END MODULE limistate_2