[3] | 1 | MODULE trabbl |
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| 2 | !!============================================================================== |
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| 3 | !! *** MODULE trabbl *** |
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| 4 | !! Ocean physics : advective and/or diffusive bottom boundary layer scheme |
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| 5 | !!============================================================================== |
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[503] | 6 | !! History : 8.0 ! 96-06 (L. Mortier) Original code |
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| 7 | !! 8.0 ! 97-11 (G. Madec) Optimization |
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| 8 | !! 8.5 ! 02-08 (G. Madec) free form + modules |
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| 9 | !!---------------------------------------------------------------------- |
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[3] | 10 | #if defined key_trabbl_dif || defined key_trabbl_adv || defined key_esopa |
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| 11 | !!---------------------------------------------------------------------- |
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| 12 | !! 'key_trabbl_dif' or diffusive bottom boundary layer |
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| 13 | !! 'key_trabbl_adv' advective bottom boundary layer |
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| 14 | !!---------------------------------------------------------------------- |
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[503] | 15 | !!---------------------------------------------------------------------- |
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[3] | 16 | !! tra_bbl_dif : update the active tracer trends due to the bottom |
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| 17 | !! boundary layer (diffusive only) |
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| 18 | !! tra_bbl_adv : update the active tracer trends due to the bottom |
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| 19 | !! boundary layer (advective and/or diffusive) |
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| 20 | !! tra_bbl_init : initialization, namlist read, parameters control |
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| 21 | !!---------------------------------------------------------------------- |
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[503] | 22 | USE oce ! ocean dynamics and active tracers |
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| 23 | USE dom_oce ! ocean space and time domain |
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| 24 | USE trdmod ! ocean active tracers trends |
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| 25 | USE trdmod_oce ! ocean variables trends |
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| 26 | USE in_out_manager ! I/O manager |
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| 27 | USE lbclnk ! ocean lateral boundary conditions |
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| 28 | USE prtctl ! Print control |
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[3] | 29 | |
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| 30 | IMPLICIT NONE |
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| 31 | PRIVATE |
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| 32 | |
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| 33 | PUBLIC tra_bbl_dif ! routine called by step.F90 |
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| 34 | PUBLIC tra_bbl_adv ! routine called by step.F90 |
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| 35 | |
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[503] | 36 | !!* Namelist nambbl: bottom boundary layer |
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[1601] | 37 | REAL(wp), PUBLIC :: rn_ahtbbl = 1.e+3 !: lateral coeff. for bottom boundary layer scheme (m2/s) |
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[503] | 38 | |
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[457] | 39 | # if defined key_trabbl_dif |
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[503] | 40 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbl_dif = .TRUE. !: diffusive bottom boundary layer flag |
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[457] | 41 | # else |
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[503] | 42 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbl_dif = .FALSE. !: diffusive bottom boundary layer flag |
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[457] | 43 | # endif |
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[409] | 44 | |
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[3] | 45 | # if defined key_trabbl_adv |
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[503] | 46 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbl_adv = .TRUE. !: advective bottom boundary layer flag |
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| 47 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: u_bbl !: 3 components of the velocity |
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| 48 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: v_bbl !: associated with advective BBL |
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| 49 | REAL(wp), PUBLIC, DIMENSION(jpi,jpj,jpk) :: w_bbl !: (only affect tracer) |
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[3] | 50 | # else |
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[503] | 51 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbl_adv = .FALSE. !: advective bottom boundary layer flag |
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[3] | 52 | # endif |
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| 53 | |
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[503] | 54 | INTEGER, DIMENSION(jpi,jpj) :: mbkt ! vertical index of the bottom ocean T-level |
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| 55 | INTEGER, DIMENSION(jpi,jpj) :: mbku, mbkv ! vertical index of the bottom ocean U/V-level |
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[3] | 56 | |
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| 57 | !! * Substitutions |
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| 58 | # include "domzgr_substitute.h90" |
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| 59 | # include "vectopt_loop_substitute.h90" |
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| 60 | !!---------------------------------------------------------------------- |
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[503] | 61 | !! OPA 9.0 , LOCEAN-IPSL (2006) |
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[1152] | 62 | !! $Id$ |
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[503] | 63 | !! Software governed by the CeCILL licence (modipsl/doc/NEMO_CeCILL.txt) |
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[3] | 64 | !!---------------------------------------------------------------------- |
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| 65 | |
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| 66 | CONTAINS |
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| 67 | |
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| 68 | SUBROUTINE tra_bbl_dif( kt ) |
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| 69 | !!---------------------------------------------------------------------- |
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| 70 | !! *** ROUTINE tra_bbl_dif *** |
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| 71 | !! |
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| 72 | !! ** Purpose : Compute the before tracer (t & s) trend associated |
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| 73 | !! with the bottom boundary layer and add it to the general trend |
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| 74 | !! of tracer equations. The bottom boundary layer is supposed to be |
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| 75 | !! a purely diffusive bottom boundary layer. |
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| 76 | !! |
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| 77 | !! ** Method : When the product grad( rho) * grad(h) < 0 (where grad |
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| 78 | !! is an along bottom slope gradient) an additional lateral diffu- |
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| 79 | !! sive trend along the bottom slope is added to the general tracer |
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| 80 | !! trend, otherwise nothing is done. |
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| 81 | !! Second order operator (laplacian type) with variable coefficient |
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| 82 | !! computed as follow for temperature (idem on s): |
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| 83 | !! difft = 1/(e1t*e2t*e3t) { di-1[ ahbt e2u*e3u/e1u di[ztb] ] |
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| 84 | !! + dj-1[ ahbt e1v*e3v/e2v dj[ztb] ] } |
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| 85 | !! where ztb is a 2D array: the bottom ocean temperature and ahtb |
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| 86 | !! is a time and space varying diffusive coefficient defined by: |
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| 87 | !! ahbt = zahbp if grad(rho).grad(h) < 0 |
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| 88 | !! = 0. otherwise. |
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| 89 | !! Note that grad(.) is the along bottom slope gradient. grad(rho) |
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| 90 | !! is evaluated using the local density (i.e. referenced at the |
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| 91 | !! local depth). Typical value of ahbt is 2000 m2/s (equivalent to |
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| 92 | !! a downslope velocity of 20 cm/s if the condition for slope |
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| 93 | !! convection is satified) |
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| 94 | !! Add this before trend to the general trend (ta,sa) of the |
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| 95 | !! botton ocean tracer point: |
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| 96 | !! ta = ta + difft |
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| 97 | !! |
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| 98 | !! ** Action : - update (ta,sa) at the bottom level with the bottom |
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| 99 | !! boundary layer trend |
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[503] | 100 | !! - save the trends in ztrdt/ztrds ('key_trdtra') |
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[3] | 101 | !! |
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[503] | 102 | !! References : Beckmann, A., and R. Doscher, 1997, J. Phys.Oceanogr., 581-591. |
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| 103 | !!---------------------------------------------------------------------- |
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| 104 | USE oce, ONLY : ztrdt => ua ! use ua as 3D workspace |
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| 105 | USE oce, ONLY : ztrds => va ! use va as 3D workspace |
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| 106 | USE eosbn2 ! equation of state |
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[3] | 107 | !! |
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[503] | 108 | INTEGER, INTENT( in ) :: kt ! ocean time-step |
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| 109 | !! |
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[1601] | 110 | INTEGER :: ji, jj ! dummy loop indices |
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[503] | 111 | INTEGER :: ik |
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[1601] | 112 | INTEGER :: ii0, ii1, ij0, ij1 ! temporary integers |
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[3] | 113 | INTEGER :: iku1, iku2, ikv1,ikv2 ! temporary intergers |
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| 114 | REAL(wp) :: ze3u, ze3v ! temporary scalars |
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[503] | 115 | INTEGER :: iku, ikv |
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[1601] | 116 | REAL(wp) :: zsign, zt, zs, zh, zalbet ! temporary scalars |
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| 117 | REAL(wp) :: zgdrho, zbtr, zta, zsa |
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| 118 | REAL(wp), DIMENSION(jpi,jpj) :: zki, zkj, zkw, zkx, zky, zkz ! 2D workspace |
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| 119 | REAL(wp), DIMENSION(jpi,jpj) :: ztnb, zsnb, zdep, ztbb, zsbb, zahu, zahv |
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| 120 | !! |
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[503] | 121 | REAL(wp) :: fsalbt, pft, pfs, pfh ! statement function |
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[3] | 122 | !!---------------------------------------------------------------------- |
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| 123 | ! ratio alpha/beta |
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| 124 | ! ================ |
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| 125 | ! fsalbt: ratio of thermal over saline expension coefficients |
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| 126 | ! pft : potential temperature in degrees celcius |
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| 127 | ! pfs : salinity anomaly (s-35) in psu |
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| 128 | ! pfh : depth in meters |
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| 129 | |
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| 130 | fsalbt( pft, pfs, pfh ) = & |
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| 131 | ( ( ( -0.255019e-07 * pft + 0.298357e-05 ) * pft & |
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[1601] | 132 | & - 0.203814e-03 ) * pft & |
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| 133 | & + 0.170907e-01 ) * pft & |
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| 134 | & + 0.665157e-01 & |
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[3] | 135 | +(-0.678662e-05 * pfs - 0.846960e-04 * pft + 0.378110e-02 ) * pfs & |
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| 136 | + ( ( - 0.302285e-13 * pfh & |
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[1601] | 137 | & - 0.251520e-11 * pfs & |
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| 138 | & + 0.512857e-12 * pft * pft ) * pfh & |
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| 139 | & - 0.164759e-06 * pfs & |
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| 140 | & +( 0.791325e-08 * pft - 0.933746e-06 ) * pft & |
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| 141 | & + 0.380374e-04 ) * pfh |
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[3] | 142 | !!---------------------------------------------------------------------- |
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| 143 | |
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| 144 | IF( kt == nit000 ) CALL tra_bbl_init |
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| 145 | |
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[503] | 146 | IF( l_trdtra ) THEN ! Save ta and sa trends |
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| 147 | ztrdt(:,:,:) = ta(:,:,:) |
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| 148 | ztrds(:,:,:) = sa(:,:,:) |
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[216] | 149 | ENDIF |
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| 150 | |
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[3] | 151 | ! 0. 2D fields of bottom temperature and salinity, and bottom slope |
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| 152 | ! ----------------------------------------------------------------- |
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| 153 | ! mbathy= number of w-level, minimum value=1 (cf dommsk.F) |
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[789] | 154 | # if defined key_vectopt_loop |
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[1601] | 155 | DO jj = 1, 1 |
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| 156 | DO ji = 1, jpij ! vector opt. (forced unrolling) |
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[3] | 157 | # else |
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| 158 | DO jj = 1, jpj |
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| 159 | DO ji = 1, jpi |
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| 160 | # endif |
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| 161 | ik = mbkt(ji,jj) ! index of the bottom ocean T-level |
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| 162 | ztnb(ji,jj) = tn(ji,jj,ik) * tmask(ji,jj,1) ! masked now T and S at ocean bottom |
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| 163 | zsnb(ji,jj) = sn(ji,jj,ik) * tmask(ji,jj,1) |
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| 164 | ztbb(ji,jj) = tb(ji,jj,ik) * tmask(ji,jj,1) ! masked before T and S at ocean bottom |
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| 165 | zsbb(ji,jj) = sb(ji,jj,ik) * tmask(ji,jj,1) |
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| 166 | zdep(ji,jj) = fsdept(ji,jj,ik) ! depth of the ocean bottom T-level |
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| 167 | END DO |
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| 168 | END DO |
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| 169 | |
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[457] | 170 | IF( ln_zps ) THEN ! partial steps correction |
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[789] | 171 | # if defined key_vectopt_loop |
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[1601] | 172 | DO jj = 1, 1 |
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| 173 | DO ji = 1, jpij-jpi ! vector opt. (forced unrolling) |
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[457] | 174 | # else |
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| 175 | DO jj = 1, jpjm1 |
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| 176 | DO ji = 1, jpim1 |
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| 177 | # endif |
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| 178 | iku1 = MAX( mbathy(ji+1,jj )-1, 1 ) |
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| 179 | iku2 = MAX( mbathy(ji ,jj )-1, 1 ) |
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| 180 | ikv1 = MAX( mbathy(ji ,jj+1)-1, 1 ) |
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| 181 | ikv2 = MAX( mbathy(ji ,jj )-1, 1 ) |
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| 182 | ze3u = MIN( fse3u(ji,jj,iku1), fse3u(ji,jj,iku2) ) |
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| 183 | ze3v = MIN( fse3v(ji,jj,ikv1), fse3v(ji,jj,ikv2) ) |
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[1601] | 184 | zahu(ji,jj) = rn_ahtbbl * e2u(ji,jj) * ze3u / e1u(ji,jj) * umask(ji,jj,1) |
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| 185 | zahv(ji,jj) = rn_ahtbbl * e1v(ji,jj) * ze3v / e2v(ji,jj) * vmask(ji,jj,1) |
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[457] | 186 | END DO |
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| 187 | END DO |
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| 188 | ELSE ! z-coordinate - full steps or s-coordinate |
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[789] | 189 | # if defined key_vectopt_loop |
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[1601] | 190 | DO jj = 1, 1 |
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| 191 | DO ji = 1, jpij-jpi ! vector opt. (forced unrolling) |
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[3] | 192 | # else |
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[457] | 193 | DO jj = 1, jpjm1 |
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| 194 | DO ji = 1, jpim1 |
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[3] | 195 | # endif |
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[457] | 196 | iku = mbku(ji,jj) |
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| 197 | ikv = mbkv(ji,jj) |
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[1601] | 198 | zahu(ji,jj) = rn_ahtbbl * e2u(ji,jj) * fse3u(ji,jj,iku) / e1u(ji,jj) * umask(ji,jj,1) |
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| 199 | zahv(ji,jj) = rn_ahtbbl * e1v(ji,jj) * fse3v(ji,jj,ikv) / e2v(ji,jj) * vmask(ji,jj,1) |
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[457] | 200 | END DO |
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[3] | 201 | END DO |
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[457] | 202 | ENDIF |
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[3] | 203 | |
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| 204 | ! 1. Criteria of additional bottom diffusivity: grad(rho).grad(h)<0 |
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| 205 | ! -------------------------------------------- |
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| 206 | ! Sign of the local density gradient along the i- and j-slopes |
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| 207 | ! multiplied by the slope of the ocean bottom |
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| 208 | |
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[1601] | 209 | SELECT CASE ( nn_eos ) |
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| 210 | ! |
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| 211 | CASE ( 0 ) !== Jackett and McDougall (1994) formulation ==! |
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[789] | 212 | # if defined key_vectopt_loop |
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[1601] | 213 | DO jj = 1, 1 |
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| 214 | DO ji = 1, jpij-jpi ! vector opt. (forced unrolling) |
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[3] | 215 | # else |
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[1601] | 216 | DO jj = 1, jpjm1 |
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| 217 | DO ji = 1, jpim1 |
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[3] | 218 | # endif |
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[1601] | 219 | ! temperature, salinity anomalie and depth |
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| 220 | zt = 0.5 * ( ztnb(ji,jj) + ztnb(ji+1,jj) ) |
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| 221 | zs = 0.5 * ( zsnb(ji,jj) + zsnb(ji+1,jj) ) - 35.0 |
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| 222 | zh = 0.5 * ( zdep(ji,jj) + zdep(ji+1,jj) ) |
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| 223 | ! masked ratio alpha/beta |
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| 224 | zalbet = fsalbt( zt, zs, zh )*umask(ji,jj,1) |
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| 225 | ! local density gradient along i-bathymetric slope |
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| 226 | zgdrho = zalbet * ( ztnb(ji+1,jj) - ztnb(ji,jj) ) & |
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| 227 | - ( zsnb(ji+1,jj) - zsnb(ji,jj) ) |
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| 228 | ! sign of local i-gradient of density multiplied by the i-slope |
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| 229 | zsign = SIGN( 0.5, - zgdrho * ( zdep(ji+1,jj) - zdep(ji,jj) ) ) |
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| 230 | zki(ji,jj) = ( 0.5 - zsign ) * zahu(ji,jj) |
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| 231 | ! |
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| 232 | ! temperature, salinity anomalie and depth |
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| 233 | zt = 0.5 * ( ztnb(ji,jj+1) + ztnb(ji,jj) ) |
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| 234 | zs = 0.5 * ( zsnb(ji,jj+1) + zsnb(ji,jj) ) - 35.0 |
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| 235 | zh = 0.5 * ( zdep(ji,jj+1) + zdep(ji,jj) ) |
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| 236 | ! masked ratio alpha/beta |
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| 237 | zalbet = fsalbt( zt, zs, zh )*vmask(ji,jj,1) |
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| 238 | ! local density gradient along j-bathymetric slope |
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| 239 | zgdrho = zalbet * ( ztnb(ji,jj+1) - ztnb(ji,jj) ) & |
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| 240 | - ( zsnb(ji,jj+1) - zsnb(ji,jj) ) |
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| 241 | ! sign of local j-gradient of density multiplied by the j-slope |
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| 242 | zsign = sign( 0.5, -zgdrho * ( zdep(ji,jj+1) - zdep(ji,jj) ) ) |
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| 243 | zkj(ji,jj) = ( 0.5 - zsign ) * zahv(ji,jj) |
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| 244 | END DO |
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[3] | 245 | END DO |
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[1601] | 246 | ! |
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| 247 | CASE ( 1 ) !== Linear formulation function of temperature only ==! |
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[789] | 248 | # if defined key_vectopt_loop |
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[1601] | 249 | DO jj = 1, 1 |
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| 250 | DO ji = 1, jpij-jpi ! vector opt. (forced unrolling) |
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[3] | 251 | # else |
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[1601] | 252 | DO jj = 1, jpjm1 |
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| 253 | DO ji = 1, jpim1 |
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[3] | 254 | # endif |
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[1601] | 255 | ! local 'density/temperature' gradient along i-bathymetric slope |
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| 256 | zgdrho = ztnb(ji+1,jj) - ztnb(ji,jj) |
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| 257 | ! sign of local i-gradient of density multiplied by the i-slope |
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| 258 | zsign = SIGN( 0.5, - zgdrho * ( zdep(ji+1,jj) - zdep(ji,jj) ) ) |
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| 259 | zki(ji,jj) = ( 0.5 - zsign ) * zahu(ji,jj) |
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| 260 | ! |
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| 261 | ! local density gradient along j-bathymetric slope |
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| 262 | zgdrho = ztnb(ji,jj+1) - ztnb(ji,jj) |
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| 263 | ! sign of local j-gradient of density multiplied by the j-slope |
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| 264 | zsign = sign( 0.5, -zgdrho * ( zdep(ji,jj+1) - zdep(ji,jj) ) ) |
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| 265 | zkj(ji,jj) = ( 0.5 - zsign ) * zahv(ji,jj) |
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| 266 | END DO |
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[3] | 267 | END DO |
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[1601] | 268 | ! |
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| 269 | CASE ( 2 ) !== Linear formulation function of temperature and salinity ==! |
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[789] | 270 | # if defined key_vectopt_loop |
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[1601] | 271 | DO jj = 1, 1 |
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| 272 | DO ji = 1, jpij-jpi ! vector opt. (forced unrolling) |
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[409] | 273 | # else |
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[1601] | 274 | DO jj = 1, jpjm1 |
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| 275 | DO ji = 1, jpim1 |
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[481] | 276 | # endif |
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[1601] | 277 | ! local density gradient along i-bathymetric slope |
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| 278 | zgdrho = - ( rn_beta *( zsnb(ji+1,jj) - zsnb(ji,jj) ) & |
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| 279 | & - rn_alpha*( ztnb(ji+1,jj) - ztnb(ji,jj) ) ) |
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| 280 | ! sign of local i-gradient of density multiplied by the i-slope |
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| 281 | zsign = SIGN( 0.5, - zgdrho * ( zdep(ji+1,jj) - zdep(ji,jj) ) ) |
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| 282 | zki(ji,jj) = ( 0.5 - zsign ) * zahu(ji,jj) |
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| 283 | ! |
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| 284 | ! local density gradient along j-bathymetric slope |
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| 285 | zgdrho = - ( rn_beta *( zsnb(ji,jj+1) - zsnb(ji,jj) ) & |
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| 286 | & - rn_alpha*( ztnb(ji,jj+1) - ztnb(ji,jj) ) ) |
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| 287 | ! sign of local j-gradient of density multiplied by the j-slope |
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| 288 | zsign = sign( 0.5, -zgdrho * ( zdep(ji,jj+1) - zdep(ji,jj) ) ) |
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| 289 | zkj(ji,jj) = ( 0.5 - zsign ) * zahv(ji,jj) |
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| 290 | END DO |
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[481] | 291 | END DO |
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[1601] | 292 | ! |
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[409] | 293 | END SELECT |
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| 294 | |
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[3] | 295 | ! 2. Additional second order diffusive trends |
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| 296 | ! ------------------------------------------- |
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| 297 | |
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| 298 | ! first derivative (gradient) |
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[789] | 299 | # if defined key_vectopt_loop |
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[3] | 300 | jj = 1 |
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| 301 | DO ji = 1, jpij-jpi ! vector opt. (forced unrolling) |
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| 302 | # else |
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| 303 | DO jj = 1, jpjm1 |
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| 304 | DO ji = 1, jpim1 |
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| 305 | # endif |
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| 306 | zkx(ji,jj) = zki(ji,jj) * ( ztbb(ji+1,jj) - ztbb(ji,jj) ) |
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| 307 | zkz(ji,jj) = zki(ji,jj) * ( zsbb(ji+1,jj) - zsbb(ji,jj) ) |
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| 308 | |
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| 309 | zky(ji,jj) = zkj(ji,jj) * ( ztbb(ji,jj+1) - ztbb(ji,jj) ) |
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| 310 | zkw(ji,jj) = zkj(ji,jj) * ( zsbb(ji,jj+1) - zsbb(ji,jj) ) |
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[789] | 311 | # if ! defined key_vectopt_loop |
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[3] | 312 | END DO |
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| 313 | # endif |
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| 314 | END DO |
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| 315 | |
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| 316 | IF( cp_cfg == "orca" ) THEN |
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[503] | 317 | ! |
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[3] | 318 | SELECT CASE ( jp_cfg ) |
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| 319 | ! ! ======================= |
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| 320 | CASE ( 2 ) ! ORCA_R2 configuration |
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| 321 | ! ! ======================= |
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| 322 | ! Gibraltar enhancement of BBL |
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[32] | 323 | ij0 = 102 ; ij1 = 102 |
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| 324 | ii0 = 139 ; ii1 = 140 |
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| 325 | zkx( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 4.e0 * zkx( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) |
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| 326 | zky( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 4.e0 * zky( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) |
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[503] | 327 | ! |
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[3] | 328 | ! Red Sea enhancement of BBL |
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[32] | 329 | ij0 = 88 ; ij1 = 88 |
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| 330 | ii0 = 161 ; ii1 = 162 |
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| 331 | zkx( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e0 * zkx( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) |
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| 332 | zky( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 10.e0 * zky( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) |
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[503] | 333 | ! |
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[3] | 334 | ! ! ======================= |
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| 335 | CASE ( 4 ) ! ORCA_R4 configuration |
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| 336 | ! ! ======================= |
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| 337 | ! Gibraltar enhancement of BBL |
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[32] | 338 | ij0 = 52 ; ij1 = 52 |
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| 339 | ii0 = 70 ; ii1 = 71 |
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| 340 | zkx( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 4.e0 * zkx( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) |
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| 341 | zky( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) = 4.e0 * zky( mi0(ii0):mi1(ii1) , mj0(ij0):mj1(ij1) ) |
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[503] | 342 | ! |
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[3] | 343 | END SELECT |
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[503] | 344 | ! |
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[3] | 345 | ENDIF |
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| 346 | |
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| 347 | |
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| 348 | ! second derivative (divergence) and add to the general tracer trend |
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[789] | 349 | # if defined key_vectopt_loop |
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[1601] | 350 | DO jj = 1, 1 |
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| 351 | DO ji = jpi+2, jpij-jpi-1 ! vector opt. (forced unrolling) |
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[3] | 352 | # else |
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| 353 | DO jj = 2, jpjm1 |
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| 354 | DO ji = 2, jpim1 |
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| 355 | # endif |
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| 356 | ik = max( mbathy(ji,jj)-1, 1 ) |
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| 357 | zbtr = 1. / ( e1t(ji,jj) * e2t(ji,jj) * fse3t(ji,jj,ik) ) |
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| 358 | zta = ( zkx(ji,jj) - zkx(ji-1,jj ) & |
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| 359 | + zky(ji,jj) - zky(ji ,jj-1) ) * zbtr |
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| 360 | zsa = ( zkz(ji,jj) - zkz(ji-1,jj ) & |
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| 361 | + zkw(ji,jj) - zkw(ji ,jj-1) ) * zbtr |
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| 362 | ta(ji,jj,ik) = ta(ji,jj,ik) + zta |
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| 363 | sa(ji,jj,ik) = sa(ji,jj,ik) + zsa |
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| 364 | END DO |
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| 365 | END DO |
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| 366 | |
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[503] | 367 | IF( l_trdtra ) THEN ! save the BBL lateral diffusion trends for diagnostic |
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| 368 | ztrdt(:,:,:) = ta(:,:,:) - ztrdt(:,:,:) |
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| 369 | ztrds(:,:,:) = sa(:,:,:) - ztrds(:,:,:) |
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| 370 | CALL trd_mod(ztrdt, ztrds, jptra_trd_bbl, 'TRA', kt) |
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[216] | 371 | ENDIF |
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| 372 | |
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[503] | 373 | IF(ln_ctl) CALL prt_ctl( tab3d_1=ta, clinfo1=' bbl - Ta: ', mask1=tmask, & |
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| 374 | & tab3d_2=sa, clinfo2= ' Sa: ', mask2=tmask, clinfo3='tra' ) |
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| 375 | ! |
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[3] | 376 | END SUBROUTINE tra_bbl_dif |
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| 377 | |
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| 378 | # if defined key_trabbl_adv |
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| 379 | !!---------------------------------------------------------------------- |
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| 380 | !! 'key_trabbl_adv' advective bottom boundary layer |
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| 381 | !!---------------------------------------------------------------------- |
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| 382 | # include "trabbl_adv.h90" |
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| 383 | # else |
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| 384 | !!---------------------------------------------------------------------- |
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| 385 | !! Default option : NO advective bottom boundary layer |
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| 386 | !!---------------------------------------------------------------------- |
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| 387 | SUBROUTINE tra_bbl_adv (kt ) ! Empty routine |
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| 388 | INTEGER, INTENT(in) :: kt |
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[32] | 389 | WRITE(*,*) 'tra_bbl_adv: You should not have seen this print! error?', kt |
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[3] | 390 | END SUBROUTINE tra_bbl_adv |
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| 391 | # endif |
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| 392 | |
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| 393 | SUBROUTINE tra_bbl_init |
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| 394 | !!---------------------------------------------------------------------- |
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| 395 | !! *** ROUTINE tra_bbl_init *** |
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| 396 | !! |
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| 397 | !! ** Purpose : Initialization for the bottom boundary layer scheme. |
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| 398 | !! |
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| 399 | !! ** Method : Read the nambbl namelist and check the parameters |
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| 400 | !! called by tra_bbl at the first timestep (nit000) |
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| 401 | !!---------------------------------------------------------------------- |
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| 402 | INTEGER :: ji, jj ! dummy loop indices |
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[481] | 403 | REAL(wp), DIMENSION(jpi,jpj) :: zmbk |
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[541] | 404 | |
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[1601] | 405 | NAMELIST/nambbl/ rn_ahtbbl |
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[3] | 406 | !!---------------------------------------------------------------------- |
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| 407 | |
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[503] | 408 | REWIND ( numnam ) ! Read Namelist nambbl : bottom boundary layer scheme |
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[3] | 409 | READ ( numnam, nambbl ) |
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| 410 | |
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[503] | 411 | IF(lwp) THEN ! Parameter control and print |
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[3] | 412 | WRITE(numout,*) |
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[409] | 413 | WRITE(numout,*) 'tra_bbl_init : ' |
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[3] | 414 | WRITE(numout,*) '~~~~~~~~~~~~' |
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[1601] | 415 | IF( lk_trabbl_dif ) WRITE(numout,*) ' * Diffusive Bottom Boundary Layer' |
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[503] | 416 | IF( lk_trabbl_adv ) WRITE(numout,*) ' * Advective Bottom Boundary Layer' |
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| 417 | WRITE(numout,*) ' Namelist nambbl : set bbl parameters' |
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[1601] | 418 | WRITE(numout,*) ' bottom boundary layer coef. rn_ahtbbl = ', rn_ahtbbl |
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[3] | 419 | ENDIF |
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| 420 | |
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| 421 | DO jj = 1, jpj |
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| 422 | DO ji = 1, jpi |
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| 423 | mbkt(ji,jj) = MAX( mbathy(ji,jj) - 1, 1 ) ! vertical index of the bottom ocean T-level |
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| 424 | END DO |
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| 425 | END DO |
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| 426 | DO jj = 1, jpjm1 |
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| 427 | DO ji = 1, jpim1 |
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| 428 | mbku(ji,jj) = MAX( MIN( mbathy(ji+1,jj ), mbathy(ji,jj) ) - 1, 1 ) |
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| 429 | mbkv(ji,jj) = MAX( MIN( mbathy(ji ,jj+1), mbathy(ji,jj) ) - 1, 1 ) |
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| 430 | END DO |
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| 431 | END DO |
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| 432 | |
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[481] | 433 | zmbk(:,:) = FLOAT( mbku (:,:) ) |
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| 434 | CALL lbc_lnk(zmbk,'U',1.) |
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| 435 | mbku(:,:) = MAX( INT( zmbk(:,:) ), 1 ) |
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| 436 | |
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| 437 | zmbk(:,:) = FLOAT( mbkv (:,:) ) |
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| 438 | CALL lbc_lnk(zmbk,'V',1.) |
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| 439 | mbkv(:,:) = MAX( INT( zmbk(:,:) ), 1 ) |
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| 440 | |
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[3] | 441 | # if defined key_trabbl_adv |
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[503] | 442 | w_bbl(:,:,:) = 0.e0 ! initialisation of w_bbl to zero |
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[3] | 443 | # endif |
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[503] | 444 | ! |
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[3] | 445 | END SUBROUTINE tra_bbl_init |
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| 446 | |
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| 447 | #else |
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| 448 | !!---------------------------------------------------------------------- |
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| 449 | !! Dummy module : No bottom boundary layer scheme |
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| 450 | !!---------------------------------------------------------------------- |
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[32] | 451 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbl_dif = .FALSE. !: diff bbl flag |
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| 452 | LOGICAL, PUBLIC, PARAMETER :: lk_trabbl_adv = .FALSE. !: adv bbl flag |
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[3] | 453 | CONTAINS |
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[503] | 454 | SUBROUTINE tra_bbl_dif( kt ) ! Empty routine |
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[32] | 455 | WRITE(*,*) 'tra_bbl_dif: You should not have seen this print! error?', kt |
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[3] | 456 | END SUBROUTINE tra_bbl_dif |
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[503] | 457 | SUBROUTINE tra_bbl_adv( kt ) ! Empty routine |
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[32] | 458 | WRITE(*,*) 'tra_bbl_adv: You should not have seen this print! error?', kt |
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[3] | 459 | END SUBROUTINE tra_bbl_adv |
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| 460 | #endif |
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| 461 | |
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| 462 | !!====================================================================== |
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| 463 | END MODULE trabbl |
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