MODULE lbclnk !!====================================================================== !! *** MODULE lbclnk *** !! NEMO : lateral boundary conditions --- MPP exchanges !!===================================================================== !! History : OPA ! 1997-06 (G. Madec) Original code !! NEMO 1.0 ! 2002-09 (G. Madec) F90: Free form and module !! 3.2 ! 2009-03 (R. Benshila) External north fold treatment !! 3.5 ! 2012 (S.Mocavero, I. Epicoco) optimization of BDY comm. via lbc_bdy_lnk and lbc_obc_lnk !! 3.4 ! 2012-12 (R. Bourdalle-Badie, G. Reffray) add a C1D case !! 3.6 ! 2015-06 (O. Tintó and M. Castrillo) add lbc_lnk_multi !! 4.0 ! 2017-03 (G. Madec) automatique allocation of array size (use with any 3rd dim size) !! - ! 2017-04 (G. Madec) remove duplicated routines (lbc_lnk_2d_9, lbc_lnk_2d_multiple, lbc_lnk_3d_gather) !!---------------------------------------------------------------------- #if defined key_mpp_mpi !!---------------------------------------------------------------------- !! 'key_mpp_mpi' MPI massively parallel processing library !!---------------------------------------------------------------------- !! define the generic interfaces of lib_mpp routines !!---------------------------------------------------------------------- !! lbc_lnk : generic interface for mpp_lnk_3d and mpp_lnk_2d routines defined in lib_mpp !! lbc_sum : generic interface for mpp_lnk_sum_3d and mpp_lnk_sum_2d routines defined in lib_mpp !! lbc_lnk_e : generic interface for mpp_lnk_2d_e routine defined in lib_mpp !! lbc_bdy_lnk : generic interface for mpp_lnk_bdy_2d and mpp_lnk_bdy_3d routines defined in lib_mpp !!---------------------------------------------------------------------- USE lib_mpp ! distributed memory computing library INTERFACE lbc_lnk_multi MODULE PROCEDURE mpp_lnk_2d_9, mpp_lnk_2d_multiple END INTERFACE ! INTERFACE lbc_lnk MODULE PROCEDURE mpp_lnk_3d_gather, mpp_lnk_3d, mpp_lnk_2d END INTERFACE ! INTERFACE lbc_sum MODULE PROCEDURE mpp_lnk_sum_3d, mpp_lnk_sum_2d END INTERFACE ! INTERFACE lbc_bdy_lnk MODULE PROCEDURE mpp_lnk_bdy_2d, mpp_lnk_bdy_3d END INTERFACE ! INTERFACE lbc_lnk_e MODULE PROCEDURE mpp_lnk_2d_e END INTERFACE ! INTERFACE lbc_lnk_icb MODULE PROCEDURE mpp_lnk_2d_icb END INTERFACE PUBLIC lbc_lnk ! ocean/ice lateral boundary conditions PUBLIC lbc_lnk_multi ! modified ocean/ice lateral boundary conditions PUBLIC lbc_sum ! sum across processors PUBLIC lbc_lnk_e ! extended ocean/ice lateral boundary conditions PUBLIC lbc_bdy_lnk ! ocean lateral BDY boundary conditions PUBLIC lbc_lnk_icb ! iceberg lateral boundary conditions !!---------------------------------------------------------------------- !! NEMO/OPA 4.0 , NEMO Consortium (2017) !! $Id$ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- #else !!---------------------------------------------------------------------- !! Default option shared memory computing !!---------------------------------------------------------------------- !! routines setting the appropriate values !! on first and last row and column of the global domain !!---------------------------------------------------------------------- !! lbc_sum : generic interface for mpp_lnk_sum_3d and mpp_lnk_sum_2d !! lbc_lnk_sum_3d: compute sum over the halos on a 3D variable on ocean mesh !! lbc_lnk_sum_3d: compute sum over the halos on a 2D variable on ocean mesh !! lbc_lnk : generic interface for lbc_lnk_3d and lbc_lnk_2d !! lbc_lnk_3d : set the lateral boundary condition on a 3D variable on ocean mesh !! lbc_lnk_2d : set the lateral boundary condition on a 2D variable on ocean mesh !! lbc_bdy_lnk : set the lateral BDY boundary condition !!---------------------------------------------------------------------- USE oce ! ocean dynamics and tracers USE dom_oce ! ocean space and time domain USE in_out_manager ! I/O manager USE lbcnfd ! north fold IMPLICIT NONE PRIVATE INTERFACE lbc_lnk MODULE PROCEDURE lbc_lnk_3d_gather, lbc_lnk_3d, lbc_lnk_2d END INTERFACE ! INTERFACE lbc_sum MODULE PROCEDURE lbc_lnk_sum_3d, lbc_lnk_sum_2d END INTERFACE ! INTERFACE lbc_lnk_e MODULE PROCEDURE lbc_lnk_2d_e END INTERFACE ! INTERFACE lbc_lnk_multi MODULE PROCEDURE lbc_lnk_2d_9, lbc_lnk_2d_multiple END INTERFACE ! INTERFACE lbc_bdy_lnk MODULE PROCEDURE lbc_bdy_lnk_2d, lbc_bdy_lnk_3d END INTERFACE ! INTERFACE lbc_lnk_icb MODULE PROCEDURE lbc_lnk_2d_e END INTERFACE TYPE arrayptr REAL , DIMENSION (:,:), POINTER :: pt2d END TYPE arrayptr ! PUBLIC arrayptr PUBLIC lbc_lnk ! ocean/ice lateral boundary conditions PUBLIC lbc_sum ! ocean/ice lateral boundary conditions (sum of the overlap region) PUBLIC lbc_lnk_e ! extended ocean/ice lateral boundary conditions PUBLIC lbc_lnk_multi ! modified ocean/ice lateral boundary conditions PUBLIC lbc_bdy_lnk ! ocean lateral BDY boundary conditions PUBLIC lbc_lnk_icb ! iceberg lateral boundary conditions !!---------------------------------------------------------------------- !! NEMO/OPA 4.0 , NEMO Consortium (2017) !! $Id$ !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt) !!---------------------------------------------------------------------- CONTAINS # if defined key_c1d !!---------------------------------------------------------------------- !! 'key_c1d' 1D configuration !!---------------------------------------------------------------------- !! central point value replicated over the 8 surrounding points !!---------------------------------------------------------------------- SUBROUTINE lbc_lnk_3d( pt3d, cd_type, psgn, cd_mpp, pval ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_3d *** !! !! ** Purpose : set lateral boundary conditions on a 3D array (C1D case) !! !! ** Method : 1D case, the central water column is set everywhere !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) ! INTEGER :: jk ! dummy loop index REAL(wp) :: ztab ! local scalar !!---------------------------------------------------------------------- ! DO jk = 1, SIZE( pt3d, 3 ) ztab = pt3d(2,2,jk) pt3d(:,:,jk) = ztab END DO ! END SUBROUTINE lbc_lnk_3d SUBROUTINE lbc_lnk_2d( pt2d, cd_type, psgn, cd_mpp, pval ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_2d *** !! !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) !! !! ** Method : 1D case, the central water column is set everywhere !!---------------------------------------------------------------------- REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) ! REAL(wp) :: ztab ! local scalar !!---------------------------------------------------------------------- ! ztab = pt2d(2,2) pt2d(:,:) = ztab ! END SUBROUTINE lbc_lnk_2d #else !!---------------------------------------------------------------------- !! Default option 3D shared memory computing !!---------------------------------------------------------------------- !! routines setting land point, or east-west cyclic, !! or north-south cyclic, or north fold values !! on first and last row and column of the global domain !!---------------------------------------------------------------------- SUBROUTINE lbc_lnk_3d( pt3d, cd_type, psgn, cd_mpp, pval ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_3d *** !! !! ** Purpose : set lateral boundary conditions on a 3D array (non mpp case) !! !! ** Method : psign = -1 : change the sign across the north fold !! = 1 : no change of the sign across the north fold !! = 0 : no change of the sign across the north fold and !! strict positivity preserved: use inner row/column !! for closed boundaries. !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) ! REAL(wp) :: zland !!---------------------------------------------------------------------- ! IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value (zero by default) ELSE ; zland = 0._wp ENDIF ! IF( PRESENT( cd_mpp ) ) THEN ! only fill the overlap area and extra allows ! this is in mpp case. In this module, just do nothing ELSE ! ! East-West boundaries ! ! ====================== SELECT CASE ( nperio ) ! CASE ( 1 , 4 , 6 ) !** cyclic east-west pt3d( 1 ,:,:) = pt3d(jpim1,:,:) ! all points pt3d(jpi,:,:) = pt3d( 2 ,:,:) ! CASE DEFAULT !** East closed -- West closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points pt3d( 1 ,:,:) = zland pt3d(jpi,:,:) = zland CASE ( 'F' ) ! F-point pt3d(jpi,:,:) = zland END SELECT ! END SELECT ! ! North-South boundaries ! ! ====================== SELECT CASE ( nperio ) ! CASE ( 2 ) !** South symmetric -- North closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'W' ) ! T-, U-, W-points pt3d(:, 1 ,:) = pt3d(:,3,:) pt3d(:,jpj,:) = zland CASE ( 'V' , 'F' ) ! V-, F-points pt3d(:, 1 ,:) = psgn * pt3d(:,2,:) pt3d(:,jpj,:) = zland END SELECT ! CASE ( 3 , 4 , 5 , 6 ) !** North fold T or F-point pivot -- South closed SELECT CASE ( cd_type ) ! South : closed CASE ( 'T' , 'U' , 'V' , 'W' , 'I' ) ! all points except F-point pt3d(:, 1 ,:) = zland END SELECT ! ! North fold CALL lbc_nfd( pt3d(:,:,:), cd_type, psgn ) ! CASE DEFAULT !** North closed -- South closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points pt3d(:, 1 ,:) = zland pt3d(:,jpj,:) = zland CASE ( 'F' ) ! F-point pt3d(:,jpj,:) = zland END SELECT ! END SELECT ! ENDIF ! END SUBROUTINE lbc_lnk_3d SUBROUTINE lbc_lnk_2d( pt2d, cd_type, psgn, cd_mpp, pval ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_2d *** !! !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) !! !! ** Method : psign = -1 : change the sign across the north fold !! = 1 : no change of the sign across the north fold !! = 0 : no change of the sign across the north fold and !! strict positivity preserved: use inner row/column !! for closed boundaries. !!---------------------------------------------------------------------- CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) !! REAL(wp) :: zland !!---------------------------------------------------------------------- IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value (zero by default) ELSE ; zland = 0._wp ENDIF IF (PRESENT(cd_mpp)) THEN ! only fill the overlap area and extra allows ! this is in mpp case. In this module, just do nothing ELSE ! ! East-West boundaries ! ! ==================== SELECT CASE ( nperio ) ! CASE ( 1 , 4 , 6 ) !** cyclic east-west pt2d( 1 ,:) = pt2d(jpim1,:) ! all points pt2d(jpi,:) = pt2d( 2 ,:) ! CASE DEFAULT !** East closed -- West closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points pt2d( 1 ,:) = zland pt2d(jpi,:) = zland CASE ( 'F' ) ! F-point pt2d(jpi,:) = zland END SELECT ! END SELECT ! ! North-South boundaries ! ! ====================== SELECT CASE ( nperio ) ! CASE ( 2 ) !** South symmetric -- North closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'W' ) ! T-, U-, W-points pt2d(:, 1 ) = pt2d(:,3) pt2d(:,jpj) = zland CASE ( 'V' , 'F' ) ! V-, F-points pt2d(:, 1 ) = psgn * pt2d(:,2) pt2d(:,jpj) = zland END SELECT ! CASE ( 3 , 4 , 5 , 6 ) !** North fold T or F-point pivot -- South closed SELECT CASE ( cd_type ) ! South : closed CASE ( 'T' , 'U' , 'V' , 'W' , 'I' ) ! all points except F-point pt2d(:, 1 ) = zland END SELECT ! ! North fold CALL lbc_nfd( pt2d(:,:), cd_type, psgn ) ! CASE DEFAULT !** North closed -- South closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points pt2d(:, 1 ) = zland pt2d(:,jpj) = zland CASE ( 'F' ) ! F-point pt2d(:,jpj) = zland END SELECT ! END SELECT ! ENDIF ! END SUBROUTINE lbc_lnk_2d #endif !!---------------------------------------------------------------------- !! identical routines in both C1D and shared memory computing cases !!---------------------------------------------------------------------- SUBROUTINE lbc_lnk_3d_gather( pt3d1, cd_type1, pt3d2, cd_type2, psgn ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_3d_gather *** !! !! ** Purpose : set lateral boundary conditions on two 3D arrays (C1D case) !! !! ** Method : call lbc_lnk_3d on pt3d1 and pt3d2 !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pt3d1 , pt3d2 ! 3D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type1, cd_type2 ! nature of pt3d1 & pt3d2 grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold !!---------------------------------------------------------------------- ! CALL lbc_lnk_3d( pt3d1, cd_type1, psgn) CALL lbc_lnk_3d( pt3d2, cd_type2, psgn) ! END SUBROUTINE lbc_lnk_3d_gather SUBROUTINE lbc_lnk_2d_multiple( pt2d_array, type_array, psgn_array, kfld ) !!--------------------------------------------------------------------- TYPE( arrayptr ), DIMENSION(:), INTENT(inout) :: pt2d_array ! pointer array of 2D fields CHARACTER(len=1), DIMENSION(:), INTENT(in ) :: type_array ! nature of ptab_array grid-points REAL(wp) , DIMENSION(:), INTENT(in ) :: psgn_array ! sign used across the north fold boundary INTEGER , INTENT(in ) :: kfld ! number of 2D fields ! INTEGER :: jf !dummy loop index !!--------------------------------------------------------------------- ! DO jf = 1, kfld CALL lbc_lnk_2d( pt2d_array(jf)%pt2d, type_array(jf), psgn_array(jf) ) END DO ! END SUBROUTINE lbc_lnk_2d_multiple SUBROUTINE lbc_lnk_2d_9( pt2dA, cd_typeA, psgnA, pt2dB, cd_typeB, psgnB, pt2dC, cd_typeC, psgnC, & & pt2dD, cd_typeD, psgnD, pt2dE, cd_typeE, psgnE, pt2dF, cd_typeF, psgnF, & & pt2dG, cd_typeG, psgnG, pt2dH, cd_typeH, psgnH, pt2dI, cd_typeI, psgnI, & & cd_mpp, pval ) !!--------------------------------------------------------------------- REAL(wp), DIMENSION(jpi,jpj), TARGET , INTENT(inout) :: pt2dA ! 2D arrays on which the lbc is applied REAL(wp), DIMENSION(jpi,jpj), TARGET, OPTIONAL, INTENT(inout) :: pt2dB , pt2dC , pt2dD , pt2dE REAL(wp), DIMENSION(jpi,jpj), TARGET, OPTIONAL, INTENT(inout) :: pt2dF , pt2dG , pt2dH , pt2dI CHARACTER(len=1) , INTENT(in ) :: cd_typeA ! nature of pt2D. array grid-points CHARACTER(len=1) , OPTIONAL, INTENT(in ) :: cd_typeB , cd_typeC , cd_typeD , cd_typeE CHARACTER(len=1) , OPTIONAL, INTENT(in ) :: cd_typeF , cd_typeG , cd_typeH , cd_typeI REAL(wp) , INTENT(in ) :: psgnA ! sign used across the north fold REAL(wp) , OPTIONAL, INTENT(in ) :: psgnB , psgnC , psgnD , psgnE REAL(wp) , OPTIONAL, INTENT(in ) :: psgnF , psgnG , psgnH , psgnI CHARACTER(len=3) , OPTIONAL, INTENT(in ) :: cd_mpp ! fill the overlap area only REAL(wp) , OPTIONAL, INTENT(in ) :: pval ! background value (used at closed boundaries) !! !!--------------------------------------------------------------------- ! CALL lbc_lnk( pt2dA, cd_typeA, psgnA ) ! The first array ! IF( PRESENT (psgnB) ) CALL lbc_lnk( pt2dB, cd_typeB, psgnB ) ! Look if more arrays to process IF( PRESENT (psgnC) ) CALL lbc_lnk( pt2dC, cd_typeC, psgnC ) IF( PRESENT (psgnD) ) CALL lbc_lnk( pt2dD, cd_typeD, psgnD ) IF( PRESENT (psgnE) ) CALL lbc_lnk( pt2dE, cd_typeE, psgnE ) IF( PRESENT (psgnF) ) CALL lbc_lnk( pt2dF, cd_typeF, psgnF ) IF( PRESENT (psgnG) ) CALL lbc_lnk( pt2dG, cd_typeG, psgnG ) IF( PRESENT (psgnH) ) CALL lbc_lnk( pt2dH, cd_typeH, psgnH ) IF( PRESENT (psgnI) ) CALL lbc_lnk( pt2dI, cd_typeI, psgnI ) ! END SUBROUTINE lbc_lnk_2d_9 SUBROUTINE lbc_bdy_lnk_3d( pt3d, cd_type, psgn, ib_bdy ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_bdy_lnk *** !! !! ** Purpose : wrapper rountine to 'lbc_lnk_3d'. This wrapper is used !! to maintain the same interface with regards to the mpp case !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold INTEGER , INTENT(in ) :: ib_bdy ! BDY boundary set !!---------------------------------------------------------------------- ! CALL lbc_lnk_3d( pt3d, cd_type, psgn) ! END SUBROUTINE lbc_bdy_lnk_3d SUBROUTINE lbc_bdy_lnk_2d( pt2d, cd_type, psgn, ib_bdy ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_bdy_lnk *** !! !! ** Purpose : wrapper rountine to 'lbc_lnk_2d'. This wrapper is used !! to maintain the same interface with regards to the mpp case !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt2d ! 3D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold INTEGER , INTENT(in ) :: ib_bdy ! BDY boundary set !!---------------------------------------------------------------------- ! CALL lbc_lnk_2d( pt2d, cd_type, psgn) ! END SUBROUTINE lbc_bdy_lnk_2d SUBROUTINE lbc_lnk_2d_e( pt2d, cd_type, psgn, ki, kj ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_2d *** !! !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) !! special dummy routine to allow for use of halo indexing in mpp case !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold INTEGER , INTENT(in ) :: ki, kj ! sizes of extra halo (not needed in non-mpp) !!---------------------------------------------------------------------- ! CALL lbc_lnk_2d( pt2d, cd_type, psgn ) ! END SUBROUTINE lbc_lnk_2d_e SUBROUTINE lbc_lnk_sum_2d( pt2d, cd_type, psgn, cd_mpp, pval ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_sum_2d *** !! !! ** Purpose : set lateral boundary conditions on a 2D array (non mpp case) !! !! ** Comments: compute the sum of the common cell (overlap region) for the ice sheet/ocean !! coupling if conservation option activated. As no ice shelf are present along !! this line, nothing is done along the north fold. !!---------------------------------------------------------------------- CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp), DIMENSION(jpi,jpj), INTENT(inout) :: pt2d ! 2D array on which the lbc is applied REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) !! REAL(wp) :: zland !!---------------------------------------------------------------------- ! IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value (zero by default) ELSE ; zland = 0._wp ENDIF ! IF (PRESENT(cd_mpp)) THEN ! only fill the overlap area and extra allows ! this is in mpp case. In this module, just do nothing ELSE ! ! East-West boundaries ! ! ==================== SELECT CASE ( nperio ) ! CASE ( 1 , 4 , 6 ) !** cyclic east-west pt2d(jpim1,:) = pt2d(jpim1,:) + pt2d( 1 ,:) pt2d( 2 ,:) = pt2d( 2 ,:) + pt2d(jpi,:) pt2d( 1 ,:) = 0.0_wp ! all points pt2d(jpi,:) = 0.0_wp ! CASE DEFAULT !** East closed -- West closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points pt2d( 1 ,:) = zland pt2d(jpi,:) = zland CASE ( 'F' ) ! F-point pt2d(jpi,:) = zland END SELECT ! END SELECT ! ! North-South boundaries ! ! ====================== ! Nothing to do for the north fold, there is no ice shelf along this line. ! END IF ! END SUBROUTINE SUBROUTINE lbc_lnk_sum_3d( pt3d, cd_type, psgn, cd_mpp, pval ) !!--------------------------------------------------------------------- !! *** ROUTINE lbc_lnk_sum_3d *** !! !! ** Purpose : set lateral boundary conditions on a 3D array (non mpp case) !! !! ** Comments: compute the sum of the common cell (overlap region) for the ice sheet/ocean !! coupling if conservation option activated. As no ice shelf are present along !! this line, nothing is done along the north fold. !!---------------------------------------------------------------------- REAL(wp), DIMENSION(:,:,:), INTENT(inout) :: pt3d ! 3D array on which the lbc is applied CHARACTER(len=1) , INTENT(in ) :: cd_type ! nature of pt3d grid-points REAL(wp) , INTENT(in ) :: psgn ! sign used across north fold CHARACTER(len=3) , INTENT(in ), OPTIONAL :: cd_mpp ! MPP only (here do nothing) REAL(wp) , INTENT(in ), OPTIONAL :: pval ! background value (for closed boundaries) ! REAL(wp) :: zland !!---------------------------------------------------------------------- ! IF( PRESENT( pval ) ) THEN ; zland = pval ! set land value (zero by default) ELSE ; zland = 0._wp ENDIF ! IF( PRESENT( cd_mpp ) ) THEN ! only fill the overlap area and extra allows ! this is in mpp case. In this module, just do nothing ELSE ! ! East-West boundaries ! ! ====================== SELECT CASE ( nperio ) ! CASE ( 1 , 4 , 6 ) !** cyclic east-west pt3d(jpim1,:,:) = pt3d(jpim1,:,:) + pt3d( 1 ,:,:) pt3d( 2 ,:,:) = pt3d( 2 ,:,:) + pt3d(jpi,:,:) pt3d( 1 ,:,:) = 0._wp pt3d(jpi,:,:) = 0._wp ! CASE DEFAULT !** East closed -- West closed SELECT CASE ( cd_type ) CASE ( 'T' , 'U' , 'V' , 'W' ) ! T-, U-, V-, W-points pt3d( 1 ,:,:) = zland pt3d(jpi,:,:) = zland CASE ( 'F' ) ! F-point pt3d(jpi,:,:) = zland END SELECT ! END SELECT ! ! North-South boundaries ! ! ====================== ! Nothing to do for the north fold, there is no ice shelf along this line. ! END IF ! END SUBROUTINE #endif !!====================================================================== END MODULE lbclnk