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- MODULE ldfdyn_oce
- !!======================================================================
- !! *** MODULE ldfdyn_oce ***
- !! Ocean physics: lateral momentum mixing coefficient defined in memory
- !!======================================================================
- !! History : 1.0 ! 2002-11 (G. Madec) F90: Free form and module
- !!----------------------------------------------------------------------
- USE par_oce ! ocean parameters
- USE in_out_manager ! I/O manager
- USE lib_mpp ! MPP library
- IMPLICIT NONE
- PUBLIC
- ! !!* Namelist namdyn_ldf : lateral mixing *
- LOGICAL , PUBLIC :: ln_dynldf_lap !: laplacian operator
- LOGICAL , PUBLIC :: ln_dynldf_bilap !: bilaplacian operator
- LOGICAL , PUBLIC :: ln_dynldf_level !: iso-level direction
- LOGICAL , PUBLIC :: ln_dynldf_hor !: horizontal (geopotential) direction
- LOGICAL , PUBLIC :: ln_dynldf_iso !: iso-neutral direction
- REAL(wp), PUBLIC :: rn_ahm_0_lap !: lateral laplacian eddy viscosity (m2/s)
- REAL(wp), PUBLIC :: rn_ahmb_0 !: lateral laplacian background eddy viscosity (m2/s)
- REAL(wp), PUBLIC :: rn_ahm_0_blp !: lateral bilaplacian eddy viscosity (m4/s)
- REAL(wp), PUBLIC :: ahm0, ahmb0, ahm0_blp !: OLD namelist names
- REAL(wp), PUBLIC :: rn_cmsmag_1 !: constant in laplacian Smagorinsky viscosity
- REAL(wp), PUBLIC :: rn_cmsmag_2 !: constant in bilaplacian Smagorinsky viscosity
- REAL(wp), PUBLIC :: rn_cmsh !: 1 or 0 , if 0 -use only shear for Smagorinsky viscosity
- REAL(wp), PUBLIC :: rn_ahm_m_blp !: upper limit for bilap abs(ahm) < min( dx^4/128rdt, rn_ahm_m_blp)
- REAL(wp), PUBLIC :: rn_ahm_m_lap !: upper limit for lap ahm < min(dx^2/16rdt, rn_ahm_m_lap)
- INTEGER , PUBLIC :: nkahm_smag = 0 !:
- ! !!! eddy coeff. at U-,V-,W-pts [m2/s]
- #if defined key_dynldf_c3d
- REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:,:) :: ahm1, ahm2, ahm3, ahm4 !: ** 3D coefficients **
- #elif defined key_dynldf_c2d
- REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:,:) :: ahm1, ahm2, ahm3, ahm4 !: ** 2D coefficients **
- #elif defined key_dynldf_c1d
- REAL(wp), PUBLIC, ALLOCATABLE, SAVE, DIMENSION(:) :: ahm1, ahm2, ahm3, ahm4 !: ** 2D coefficients **
- #else
- REAL(wp), PUBLIC :: ahm1, ahm2, ahm3, ahm4 !: ** 0D coefficients **
- #endif
- !!----------------------------------------------------------------------
- !! NEMO/OPA 4.0 , NEMO Consortium (2011)
- !! $Id: ldfdyn_oce.F90 4147 2013-11-04 11:51:55Z cetlod $
- !! Software governed by the CeCILL licence (NEMOGCM/NEMO_CeCILL.txt)
- !!----------------------------------------------------------------------
- CONTAINS
- INTEGER FUNCTION ldfdyn_oce_alloc()
- !!----------------------------------------------------------------------
- !! *** FUNCTION ldfdyn_oce_alloc ***
- !!----------------------------------------------------------------------
- ldfdyn_oce_alloc = 0
- #if defined key_dynldf_c3d
- ALLOCATE( ahm1(jpi,jpj,jpk) , ahm2(jpi,jpj,jpk) , ahm3(jpi,jpj,jpk) , ahm4(jpi,jpj,jpk) , STAT=ldfdyn_oce_alloc )
- #elif defined key_dynldf_c2d
- ALLOCATE( ahm1(jpi,jpj ) , ahm2(jpi,jpj ) , ahm3(jpi,jpj ) , ahm4(jpi,jpj ) , STAT=ldfdyn_oce_alloc )
- #elif defined key_dynldf_c1d
- ALLOCATE( ahm1( jpk) , ahm2( jpk) , ahm3( jpk) , ahm4( jpk) , STAT=ldfdyn_oce_alloc )
- #endif
- IF( ldfdyn_oce_alloc /= 0 ) CALL ctl_warn('ldfdyn_oce_alloc: failed to allocate arrays')
- !
- END FUNCTION ldfdyn_oce_alloc
- !!======================================================================
- END MODULE ldfdyn_oce
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