MODULE sbc_oce !!====================================================================== !! *** MODULE sbc_oce *** !! Surface module : variables defined in core memory !!====================================================================== !! History : 3.0 ! 2006-06 (G. Madec) Original code !! - ! 2008-08 (G. Madec) namsbc moved from sbcmod !!---------------------------------------------------------------------- USE par_oce ! ocean parameters IMPLICIT NONE PRIVATE PUBLIC sbc_tau2wnd ! compute wind speed based on the wind stress !!---------------------------------------------------------------------- !! Namelist for the Ocean Surface Boundary Condition !!---------------------------------------------------------------------- ! !! * namsbc namelist * LOGICAL , PUBLIC :: ln_ana = .FALSE. !: analytical boundary condition flag LOGICAL , PUBLIC :: ln_flx = .FALSE. !: flux formulation LOGICAL , PUBLIC :: ln_blk_clio = .FALSE. !: CLIO bulk formulation LOGICAL , PUBLIC :: ln_blk_core = .FALSE. !: CORE bulk formulation LOGICAL , PUBLIC :: ln_cpl = .FALSE. !: coupled formulation (overwritten by key_sbc_coupled ) LOGICAL , PUBLIC :: ln_dm2dc = .FALSE. !: Daily mean to Diurnal Cycle short wave (qsr) LOGICAL , PUBLIC :: ln_rnf = .FALSE. !: runoffs / runoff mouths LOGICAL , PUBLIC :: ln_ssr = .FALSE. !: Sea Surface restoring on SST and/or SSS INTEGER , PUBLIC :: nn_ice = 0 !: flag on ice in the surface boundary condition (=0/1/2/3) INTEGER , PUBLIC :: nn_fwb = 0 !: FreshWater Budget: ! !: = 0 unchecked ! !: = 1 global mean of e-p-r set to zero at each nn_fsbc time step ! !: = 2 annual global mean of e-p-r set to zero INTEGER , PUBLIC :: nn_ico_cpl = 0 !: ice-ocean coupling indicator ! !: = 0 LIM-3 old case ! !: = 1 stresses computed using now ocean velocity ! !: = 2 combination of 0 and 1 cases !!---------------------------------------------------------------------- !! Ocean Surface Boundary Condition fields !!---------------------------------------------------------------------- REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: utau !: sea surface i-stress (ocean referential) [N/m2] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: vtau !: sea surface j-stress (ocean referential) [N/m2] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: wndm !: wind speed module at T-point (=|U10m-Uoce|) [m/s] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qsr !: sea heat flux: solar [W/m2] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qns !: sea heat flux: non solar [W/m2] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qsr_tot !: total solar heat flux (over sea and ice) [W/m2] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: qns_tot !: total non solar heat flux (over sea and ice) [W/m2] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: emp !: freshwater budget: volume flux [Kg/m2/s] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: emps !: freshwater budget: concentration/dillution [Kg/m2/s] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: emp_tot !: total evaporation - (liquid + solid) precpitation over oce and ice REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: tprecip !: total precipitation [Kg/m2/s] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: sprecip !: solid precipitation [Kg/m2/s] !!$ REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: rrunoff !: runoff !!$ REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: calving !: calving REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: fr_i !: ice fraction (between 0 to 1) - !!---------------------------------------------------------------------- !! Sea Surface Mean fields !!---------------------------------------------------------------------- INTEGER , PUBLIC :: nn_fsbc !: frequency of sbc computation (as well as sea-ice model) REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: ssu_m !: mean (nn_fsbc time-step) surface sea i-current (U-point) [m/s] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: ssv_m !: mean (nn_fsbc time-step) surface sea j-current (V-point) [m/s] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: sst_m !: mean (nn_fsbc time-step) surface sea temperature [Celsius] REAL(wp), PUBLIC, DIMENSION(jpi,jpj) :: sss_m !: mean (nn_fsbc time-step) surface sea salinity [psu] !!---------------------------------------------------------------------- !! OPA 9.0 , LOCEAN-IPSL (2006) !! $ Id: $ !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) !!====================================================================== CONTAINS SUBROUTINE sbc_tau2wnd !!--------------------------------------------------------------------- !! *** ROUTINE sbc_tau2wnd *** !! !! ** Purpose : Estimation of wind speed as a function of wind stress !! !! ** Method : |tau|=rhoa*Cd*|U|^2 !!--------------------------------------------------------------------- USE dom_oce ! ocean space and time domain USE lbclnk ! ocean lateral boundary conditions (or mpp link) REAL(wp) :: zrhoa = 1.22 ! Air density kg/m3 REAL(wp) :: zcdrag = 1.5e-3 ! drag coefficient REAL(wp) :: ztx, zty, ztau, zcoef ! temporary variables INTEGER :: ji, jj ! dummy indices !! * Substitutions # include "vectopt_loop_substitute.h90" !!--------------------------------------------------------------------- zcoef = 0.5 / ( zrhoa * zcdrag ) !CDIR NOVERRCHK DO jj = 2, jpjm1 !CDIR NOVERRCHK DO ji = fs_2, fs_jpim1 ! vect. opt. ztx = utau(ji-1,jj ) + utau(ji,jj) zty = vtau(ji ,jj-1) + vtau(ji,jj) ztau = SQRT( ztx * ztx + zty * zty ) wndm(ji,jj) = SQRT ( ztau * zcoef ) * tmask(ji,jj,1) END DO END DO CALL lbc_lnk( wndm(:,:) , 'T', 1. ) END SUBROUTINE sbc_tau2wnd END MODULE sbc_oce