| 1 |
dimitri |
1.44 |
C $Header: /u/gcmpack/MITgcm/pkg/kpp/kpp_calc.F,v 1.43 2007/06/04 18:47:35 heimbach Exp $ |
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adcroft |
1.9 |
C $Name: $ |
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adcroft |
1.1 |
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#include "KPP_OPTIONS.h" |
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dimitri |
1.25 |
CBOP |
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C !ROUTINE: KPP_CALC |
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C !INTERFACE: ========================================================== |
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jmc |
1.42 |
SUBROUTINE KPP_CALC( |
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I bi, bj, myTime, myIter, myThid ) |
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dimitri |
1.25 |
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C !DESCRIPTION: \bv |
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jmc |
1.42 |
C *==========================================================* |
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adcroft |
1.1 |
C | SUBROUTINE KPP_CALC | |
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C | o Compute all KPP fields defined in KPP.h | |
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jmc |
1.42 |
C *==========================================================* |
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adcroft |
1.1 |
C | This subroutine serves as an interface between MITGCMUV | |
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C | code and NCOM 1-D routines in kpp_routines.F | |
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jmc |
1.42 |
C *==========================================================* |
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adcroft |
1.1 |
IMPLICIT NONE |
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c======================================================================= |
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c |
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c written by : jan morzel, august 11, 1994 |
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c modified by : jan morzel, january 25, 1995 : "dVsq" and 1d code |
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c detlef stammer, august, 1997 : for MIT GCM Classic |
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c d. menemenlis, july, 1998 : for MIT GCM UV |
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c |
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c compute vertical mixing coefficients based on the k-profile |
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c and oceanic planetary boundary layer scheme by large & mcwilliams. |
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c |
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c summary: |
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c - compute interior mixing everywhere: |
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c interior mixing gets computed at all interfaces due to constant |
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c internal wave background activity ("fkpm" and "fkph"), which |
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c is enhanced in places of static instability (local richardson |
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c number < 0). |
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c Additionally, mixing can be enhanced by adding contribution due |
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c to shear instability which is a function of the local richardson |
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c number |
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c - double diffusivity: |
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c interior mixing can be enhanced by double diffusion due to salt |
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c fingering and diffusive convection (ifdef "kmixdd"). |
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c - kpp scheme in the boundary layer: |
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c |
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c a.boundary layer depth: |
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c at every gridpoint the depth of the oceanic boundary layer |
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c ("hbl") gets computed by evaluating bulk richardson numbers. |
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c b.boundary layer mixing: |
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c within the boundary layer, above hbl, vertical mixing is |
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c determined by turbulent surface fluxes, and interior mixing at |
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c the lower boundary, i.e. at hbl. |
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c |
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jmc |
1.42 |
c this subroutine provides the interface between the MITGCM and |
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c the routine "kppmix", where boundary layer depth, vertical |
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adcroft |
1.1 |
c viscosity, vertical diffusivity, and counter gradient term (ghat) |
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c are computed slabwise. |
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c note: subroutine "kppmix" uses m-k-s units. |
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c |
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c time level: |
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c input tracer and velocity profiles are evaluated at time level |
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c tau, surface fluxes come from tau or tau-1. |
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c |
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c grid option: |
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c in this "1-grid" implementation, diffusivity and viscosity |
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c profiles are computed on the "t-grid" (by using velocity shear |
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c profiles averaged from the "u,v-grid" onto the "t-grid"; note, that |
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c the averaging includes zero values on coastal and seafloor grid |
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c points). viscosity on the "u,v-grid" is computed by averaging the |
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c "t-grid" viscosity values onto the "u,v-grid". |
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c |
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c vertical grid: |
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c mixing coefficients get evaluated at the bottom of the lowest |
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c layer, i.e., at depth zw(Nr). these values are only useful when |
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c the model ocean domain does not include the entire ocean down to |
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c the seafloor ("upperocean" setup) and allows flux through the |
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c bottom of the domain. for full-depth runs, these mixing |
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c coefficients are being zeroed out before leaving this subroutine. |
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c |
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c------------------------------------------------------------------------- |
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c global parameters updated by kpp_calc |
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c KPPviscAz - KPP eddy viscosity coefficient (m^2/s) |
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c KPPdiffKzT - KPP diffusion coefficient for temperature (m^2/s) |
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c KPPdiffKzS - KPP diffusion coefficient for salt and tracers (m^2/s) |
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c KPPghat - Nonlocal transport coefficient (s/m^2) |
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c KPPhbl - Boundary layer depth on "t-grid" (m) |
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c KPPfrac - Fraction of short-wave flux penetrating mixing layer |
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dimitri |
1.44 |
c KPPplumefrac- Fraction of saltplume (flux) penetrating mixing layer |
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adcroft |
1.1 |
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c-- KPP_CALC computes vertical viscosity and diffusivity for region |
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c (-2:sNx+3,-2:sNy+3) as required by CALC_DIFFUSIVITY and requires |
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jmc |
1.28 |
c values of uVel, vVel, surfaceForcingU, surfaceForcingV in the |
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heimbach |
1.2 |
c region (-2:sNx+4,-2:sNy+4). |
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adcroft |
1.1 |
c Hence overlap region needs to be set OLx=4, OLy=4. |
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dimitri |
1.25 |
c \ev |
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adcroft |
1.1 |
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dimitri |
1.25 |
C !USES: =============================================================== |
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adcroft |
1.1 |
#include "SIZE.h" |
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#include "EEPARAMS.h" |
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#include "PARAMS.h" |
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#include "DYNVARS.h" |
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#include "KPP.h" |
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#include "KPP_PARAMS.h" |
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#include "FFIELDS.h" |
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#include "GRID.h" |
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dimitri |
1.36 |
#include "GAD.h" |
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mlosch |
1.35 |
#ifdef ALLOW_SHELFICE |
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# include "SHELFICE.h" |
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#endif /* ALLOW_SHELFICE */ |
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adcroft |
1.1 |
#ifdef ALLOW_AUTODIFF_TAMC |
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#include "tamc.h" |
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#include "tamc_keys.h" |
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#else /* ALLOW_AUTODIFF_TAMC */ |
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heimbach |
1.16 |
integer ikppkey |
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adcroft |
1.1 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
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jmc |
1.32 |
EXTERNAL DIFFERENT_MULTIPLE |
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LOGICAL DIFFERENT_MULTIPLE |
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adcroft |
1.1 |
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dimitri |
1.25 |
C !INPUT PARAMETERS: =================================================== |
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adcroft |
1.1 |
c Routine arguments |
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jmc |
1.42 |
c bi, bj :: Current tile indices |
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c myTime :: Current time in simulation |
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c myIter :: Current iteration number in simulation |
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c myThid :: My Thread Id. number |
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adcroft |
1.1 |
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INTEGER bi, bj |
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jmc |
1.42 |
_RL myTime |
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INTEGER myIter |
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adcroft |
1.1 |
INTEGER myThid |
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#ifdef ALLOW_KPP |
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dimitri |
1.25 |
C !LOCAL VARIABLES: ==================================================== |
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heimbach |
1.4 |
c Local constants |
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c minusone, p0, p5, p25, p125, p0625 |
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c imin, imax, jmin, jmax - array computation indices |
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_RL minusone |
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parameter( minusone=-1.0) |
| 143 |
dimitri |
1.37 |
_RL p0 , p5 , p25 , p125 , p0625 |
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heimbach |
1.4 |
parameter( p0=0.0, p5=0.5, p25=0.25, p125=0.125, p0625=0.0625 ) |
| 145 |
dimitri |
1.17 |
integer imin ,imax ,jmin ,jmax |
| 146 |
heimbach |
1.15 |
parameter(imin=2-OLx,imax=sNx+OLx-1,jmin=2-OLy,jmax=sNy+OLy-1) |
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heimbach |
1.4 |
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adcroft |
1.1 |
c Local arrays and variables |
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c work? (nx,ny) - horizontal working arrays |
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c ustar (nx,ny) - surface friction velocity (m/s) |
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c bo (nx,ny) - surface turbulent buoyancy forcing (m^2/s^3) |
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c bosol (nx,ny) - surface radiative buoyancy forcing (m^2/s^3) |
| 153 |
dimitri |
1.44 |
c boplume(nx,ny) - surface haline buoyancy forcing (m^2/s^3) |
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adcroft |
1.1 |
c shsq (nx,ny,Nr) - local velocity shear squared |
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c at interfaces for ri_iwmix (m^2/s^2) |
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c dVsq (nx,ny,Nr) - velocity shear re surface squared |
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c at grid levels for bldepth (m^2/s^2) |
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c dbloc (nx,ny,Nr) - local delta buoyancy at interfaces |
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c for ri_iwmix and bldepth (m/s^2) |
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c Ritop (nx,ny,Nr) - numerator of bulk richardson number |
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c at grid levels for bldepth |
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c vddiff (nx,ny,Nrp2,1)- vertical viscosity on "t-grid" (m^2/s) |
| 163 |
dimitri |
1.24 |
c vddiff (nx,ny,Nrp2,2)- vert. diff. on next row for salt&tracers (m^2/s) |
| 164 |
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c vddiff (nx,ny,Nrp2,3)- vert. diff. on next row for temperature (m^2/s) |
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adcroft |
1.1 |
c ghat (nx,ny,Nr) - nonlocal transport coefficient (s/m^2) |
| 166 |
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c hbl (nx,ny) - mixing layer depth (m) |
| 167 |
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c kmtj (nx,ny) - maximum number of wet levels in each column |
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c z0 (nx,ny) - Roughness length (m) |
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c zRef (nx,ny) - Reference depth: Hmix * epsilon (m) |
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c uRef (nx,ny) - Reference zonal velocity (m/s) |
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c vRef (nx,ny) - Reference meridional velocity (m/s) |
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| 173 |
dimitri |
1.37 |
integer work1 ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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_RL worka ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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_RL work2 ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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_RL work3 ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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_RL ustar ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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_RL bo ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
| 179 |
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_RL bosol ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
| 180 |
dimitri |
1.44 |
#ifdef ALLOW_SALT_PLUME |
| 181 |
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_RL boplume ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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#endif /* ALLOW_SALT_PLUME */ |
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dimitri |
1.37 |
_RL shsq ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nr ) |
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_RL dVsq ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nr ) |
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_RL dbloc ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nr ) |
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_RL Ritop ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nr ) |
| 187 |
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_RL vddiff( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, 0:Nrp1, mdiff ) |
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_RL ghat ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nr ) |
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_RL hbl ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
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heimbach |
1.33 |
cph( |
| 191 |
dimitri |
1.37 |
_RL TTALPHA( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nrp1 ) |
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_RL SSBETA ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy, Nrp1 ) |
| 193 |
heimbach |
1.33 |
cph) |
| 194 |
adcroft |
1.1 |
#ifdef KPP_ESTIMATE_UREF |
| 195 |
dimitri |
1.37 |
_RL z0 ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
| 196 |
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_RL zRef ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
| 197 |
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_RL uRef ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
| 198 |
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_RL vRef ( 1-OLx:sNx+OLx, 1-OLy:sNy+OLy ) |
| 199 |
adcroft |
1.1 |
#endif /* KPP_ESTIMATE_UREF */ |
| 200 |
jmc |
1.42 |
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| 201 |
dimitri |
1.37 |
_RL tempvar2 |
| 202 |
mlosch |
1.35 |
integer i, j, k, kp1, km1, im1, ip1, jm1, jp1 |
| 203 |
adcroft |
1.1 |
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#ifdef KPP_ESTIMATE_UREF |
| 205 |
dimitri |
1.37 |
_RL tempvar1, dBdz1, dBdz2, ustarX, ustarY |
| 206 |
adcroft |
1.1 |
#endif |
| 207 |
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| 208 |
heimbach |
1.16 |
#ifdef ALLOW_AUTODIFF_TAMC |
| 209 |
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act1 = bi - myBxLo(myThid) |
| 210 |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
| 211 |
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act2 = bj - myByLo(myThid) |
| 212 |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
| 213 |
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act3 = myThid - 1 |
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max3 = nTx*nTy |
| 215 |
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act4 = ikey_dynamics - 1 |
| 216 |
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ikppkey = (act1 + 1) + act2*max1 |
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& + act3*max1*max2 |
| 218 |
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& + act4*max1*max2*max3 |
| 219 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
| 220 |
dimitri |
1.25 |
CEOP |
| 221 |
heimbach |
1.16 |
|
| 222 |
adcroft |
1.1 |
c Check to see if new vertical mixing coefficient should be computed now? |
| 223 |
jmc |
1.32 |
IF ( DIFFERENT_MULTIPLE(kpp_freq,myTime,deltaTClock) |
| 224 |
jmc |
1.31 |
1 .OR. myTime .EQ. startTime ) THEN |
| 225 |
jmc |
1.42 |
|
| 226 |
adcroft |
1.1 |
c----------------------------------------------------------------------- |
| 227 |
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c prepare input arrays for subroutine "kppmix" to compute |
| 228 |
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c viscosity and diffusivity and ghat. |
| 229 |
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c All input arrays need to be in m-k-s units. |
| 230 |
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c |
| 231 |
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c note: for the computation of the bulk richardson number in the |
| 232 |
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c "bldepth" subroutine, gradients of velocity and buoyancy are |
| 233 |
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c required at every depth. in the case of very fine vertical grids |
| 234 |
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c (thickness of top layer < 2m), the surface reference depth must |
| 235 |
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c be set to zref=epsilon/2*zgrid(k), and the reference value |
| 236 |
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c of velocity and buoyancy must be computed as vertical average |
| 237 |
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c between the surface and 2*zref. in the case of coarse vertical |
| 238 |
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c grids zref is zgrid(1)/2., and the surface reference value is |
| 239 |
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c simply the surface value at zgrid(1). |
| 240 |
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c----------------------------------------------------------------------- |
| 241 |
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| 242 |
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c------------------------------------------------------------------------ |
| 243 |
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c density related quantities |
| 244 |
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c -------------------------- |
| 245 |
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c |
| 246 |
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c work2 - density of surface layer (kg/m^3) |
| 247 |
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c dbloc - local buoyancy gradient at Nr interfaces |
| 248 |
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c g/rho{k+1,k+1} * [ drho{k,k+1}-drho{k+1,k+1} ] (m/s^2) |
| 249 |
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c dbsfc (stored in Ritop to conserve stack memory) |
| 250 |
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c - buoyancy difference with respect to the surface |
| 251 |
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c g * [ drho{1,k}/rho{1,k} - drho{k,k}/rho{k,k} ] (m/s^2) |
| 252 |
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c ttalpha (stored in vddiff(:,:,:,1) to conserve stack memory) |
| 253 |
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c - thermal expansion coefficient without 1/rho factor |
| 254 |
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c d(rho{k,k})/d(T(k)) (kg/m^3/C) |
| 255 |
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c ssbeta (stored in vddiff(:,:,:,2) to conserve stack memory) |
| 256 |
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c - salt expansion coefficient without 1/rho factor |
| 257 |
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c d(rho{k,k})/d(S(k)) (kg/m^3/PSU) |
| 258 |
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c------------------------------------------------------------------------ |
| 259 |
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| 260 |
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CALL TIMER_START('STATEKPP [KPP_CALC]', myThid) |
| 261 |
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CALL STATEKPP( |
| 262 |
mlosch |
1.40 |
O work2, dbloc, Ritop, |
| 263 |
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O TTALPHA, SSBETA, |
| 264 |
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I ikppkey, bi, bj, myThid ) |
| 265 |
adcroft |
1.1 |
CALL TIMER_STOP ('STATEKPP [KPP_CALC]', myThid) |
| 266 |
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| 267 |
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DO k = 1, Nr |
| 268 |
dimitri |
1.34 |
DO j = 1-OLy, sNy+OLy |
| 269 |
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DO i = 1-OLx, sNx+OLx |
| 270 |
adcroft |
1.1 |
ghat(i,j,k) = dbloc(i,j,k) |
| 271 |
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ENDDO |
| 272 |
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ENDDO |
| 273 |
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ENDDO |
| 274 |
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| 275 |
heimbach |
1.4 |
#ifdef KPP_SMOOTH_DBLOC |
| 276 |
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c horizontally smooth dbloc with a 121 filter |
| 277 |
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c smooth dbloc stored in ghat to save space |
| 278 |
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c dbloc(k) is buoyancy gradientnote between k and k+1 |
| 279 |
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c levels therefore k+1 mask must be used |
| 280 |
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| 281 |
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DO k = 1, Nr-1 |
| 282 |
dimitri |
1.37 |
CALL SMOOTH_HORIZ ( |
| 283 |
heimbach |
1.4 |
I k+1, bi, bj, |
| 284 |
jmc |
1.42 |
U ghat (1-OLx,1-OLy,k), |
| 285 |
mlosch |
1.40 |
I myThid ) |
| 286 |
heimbach |
1.4 |
ENDDO |
| 287 |
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| 288 |
adcroft |
1.1 |
#endif /* KPP_SMOOTH_DBLOC */ |
| 289 |
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| 290 |
|
|
#ifdef KPP_SMOOTH_DENS |
| 291 |
|
|
c horizontally smooth density related quantities with 121 filters |
| 292 |
dimitri |
1.37 |
CALL SMOOTH_HORIZ ( |
| 293 |
heimbach |
1.4 |
I 1, bi, bj, |
| 294 |
jmc |
1.42 |
U work2, |
| 295 |
mlosch |
1.40 |
I myThid ) |
| 296 |
adcroft |
1.1 |
DO k = 1, Nr |
| 297 |
dimitri |
1.37 |
CALL SMOOTH_HORIZ ( |
| 298 |
heimbach |
1.4 |
I k+1, bi, bj, |
| 299 |
jmc |
1.42 |
U dbloc (1-OLx,1-OLy,k), |
| 300 |
mlosch |
1.40 |
I myThid ) |
| 301 |
dimitri |
1.37 |
CALL SMOOTH_HORIZ ( |
| 302 |
adcroft |
1.1 |
I k, bi, bj, |
| 303 |
jmc |
1.42 |
U Ritop (1-OLx,1-OLy,k), |
| 304 |
mlosch |
1.40 |
I myThid ) |
| 305 |
dimitri |
1.37 |
CALL SMOOTH_HORIZ ( |
| 306 |
adcroft |
1.1 |
I k, bi, bj, |
| 307 |
jmc |
1.42 |
U TTALPHA(1-OLx,1-OLy,k), |
| 308 |
mlosch |
1.40 |
I myThid ) |
| 309 |
dimitri |
1.37 |
CALL SMOOTH_HORIZ ( |
| 310 |
adcroft |
1.1 |
I k, bi, bj, |
| 311 |
jmc |
1.42 |
U SSBETA(1-OLx,1-OLy,k), |
| 312 |
mlosch |
1.40 |
I myThid ) |
| 313 |
adcroft |
1.1 |
ENDDO |
| 314 |
|
|
#endif /* KPP_SMOOTH_DENS */ |
| 315 |
|
|
|
| 316 |
|
|
DO k = 1, Nr |
| 317 |
mlosch |
1.35 |
km1 = max(1,k-1) |
| 318 |
dimitri |
1.34 |
DO j = 1-OLy, sNy+OLy |
| 319 |
|
|
DO i = 1-OLx, sNx+OLx |
| 320 |
adcroft |
1.1 |
|
| 321 |
|
|
c zero out dbloc over land points (so that the convective |
| 322 |
|
|
c part of the interior mixing can be diagnosed) |
| 323 |
jmc |
1.28 |
dbloc(i,j,k) = dbloc(i,j,k) * maskC(i,j,k,bi,bj) |
| 324 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 325 |
jmc |
1.28 |
ghat(i,j,k) = ghat(i,j,k) * maskC(i,j,k,bi,bj) |
| 326 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 327 |
jmc |
1.28 |
Ritop(i,j,k) = Ritop(i,j,k) * maskC(i,j,k,bi,bj) |
| 328 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 329 |
adcroft |
1.1 |
if(k.eq.nzmax(i,j,bi,bj)) then |
| 330 |
|
|
dbloc(i,j,k) = p0 |
| 331 |
|
|
ghat(i,j,k) = p0 |
| 332 |
|
|
Ritop(i,j,k) = p0 |
| 333 |
|
|
endif |
| 334 |
|
|
|
| 335 |
|
|
c numerator of bulk richardson number on grid levels |
| 336 |
|
|
c note: land and ocean bottom values need to be set to zero |
| 337 |
|
|
c so that the subroutine "bldepth" works correctly |
| 338 |
|
|
Ritop(i,j,k) = (zgrid(1)-zgrid(k)) * Ritop(i,j,k) |
| 339 |
|
|
|
| 340 |
jmc |
1.42 |
ENDDO |
| 341 |
|
|
ENDDO |
| 342 |
|
|
ENDDO |
| 343 |
adcroft |
1.1 |
|
| 344 |
heimbach |
1.11 |
cph( |
| 345 |
|
|
cph this avoids a single or double recomp./call of statekpp |
| 346 |
heimbach |
1.16 |
CADJ store work2 = comlev1_kpp, key = ikppkey |
| 347 |
heimbach |
1.27 |
#ifdef KPP_AUTODIFF_EXCESSIVE_STORE |
| 348 |
heimbach |
1.16 |
CADJ store dbloc, Ritop, ghat = comlev1_kpp, key = ikppkey |
| 349 |
|
|
CADJ store vddiff = comlev1_kpp, key = ikppkey |
| 350 |
heimbach |
1.33 |
CADJ store TTALPHA, SSBETA = comlev1_kpp, key = ikppkey |
| 351 |
heimbach |
1.11 |
#endif |
| 352 |
|
|
cph) |
| 353 |
|
|
|
| 354 |
mlosch |
1.35 |
CML#ifdef ALLOW_SHELFICE |
| 355 |
|
|
CMLC For the pbl parameterisation to work underneath the ice shelves |
| 356 |
|
|
CMLC it needs to know the surface (ice-ocean) fluxes. However, masking |
| 357 |
|
|
CMLC and indexing problems make this part of the code not work |
| 358 |
|
|
CMLC underneath the ice shelves and the following lines are only here |
| 359 |
|
|
CMLC to remind me that this still needs to be sorted out. |
| 360 |
mlosch |
1.41 |
CML shelfIceFac = 0. _d 0 |
| 361 |
|
|
CML IF ( useShelfIce ) selfIceFac = 1. _d 0 |
| 362 |
mlosch |
1.35 |
CML DO j = jmin, jmax |
| 363 |
|
|
CML DO i = imin, imax |
| 364 |
mlosch |
1.41 |
CML surfForcT = surfaceForcingT(i,j,bi,bj) |
| 365 |
|
|
CML & + shelficeForcingT(i,j,bi,bj) * shelfIceFac |
| 366 |
|
|
CML surfForcS = surfaceForcingS(i,j,bi,bj) |
| 367 |
|
|
CML & + shelficeForcingS(i,j,bi,bj) * shelfIceFac |
| 368 |
jmc |
1.42 |
CML ENDDO |
| 369 |
|
|
CML ENDDO |
| 370 |
mlosch |
1.35 |
CML#endif /* ALLOW_SHELFICE */ |
| 371 |
heimbach |
1.11 |
|
| 372 |
mlosch |
1.41 |
c------------------------------------------------------------------------ |
| 373 |
|
|
c friction velocity, turbulent and radiative surface buoyancy forcing |
| 374 |
|
|
c ------------------------------------------------------------------- |
| 375 |
|
|
c taux / rho = surfaceForcingU (N/m^2) |
| 376 |
|
|
c tauy / rho = surfaceForcingV (N/m^2) |
| 377 |
|
|
c ustar = sqrt( sqrt( taux^2 + tauy^2 ) / rho ) (m/s) |
| 378 |
|
|
c bo = - g * ( alpha*surfaceForcingT + |
| 379 |
|
|
c beta *surfaceForcingS ) / rho (m^2/s^3) |
| 380 |
|
|
c bosol = - g * alpha * Qsw * drF(1) / rho (m^2/s^3) |
| 381 |
dimitri |
1.44 |
c boplume = g * (beta * saltPlumeFlux/rhoConst ) /rho (m^2/s^3) |
| 382 |
adcroft |
1.1 |
c------------------------------------------------------------------------ |
| 383 |
|
|
c velocity shear |
| 384 |
|
|
c -------------- |
| 385 |
|
|
c Get velocity shear squared, averaged from "u,v-grid" |
| 386 |
|
|
c onto "t-grid" (in (m/s)**2): |
| 387 |
|
|
c dVsq(k)=(Uref-U(k))**2+(Vref-V(k))**2 at grid levels |
| 388 |
|
|
c shsq(k)=(U(k)-U(k+1))**2+(V(k)-V(k+1))**2 at interfaces |
| 389 |
mlosch |
1.41 |
c |
| 390 |
|
|
c note: Vref can depend on the surface fluxes that is why we compute |
| 391 |
|
|
c dVsq in the subroutine that does the surface related stuff |
| 392 |
|
|
c (admittedly this is a bit messy) |
| 393 |
adcroft |
1.1 |
c------------------------------------------------------------------------ |
| 394 |
jmc |
1.42 |
|
| 395 |
mlosch |
1.41 |
CALL KPP_FORCING_SURF( |
| 396 |
|
|
I work2, surfaceForcingU, surfaceForcingV, |
| 397 |
jmc |
1.42 |
I surfaceForcingT, surfaceForcingS, surfaceForcingTice, |
| 398 |
dimitri |
1.44 |
I Qsw, |
| 399 |
|
|
#ifdef ALLOW_SALT_PLUME |
| 400 |
|
|
I saltPlumeFlux, |
| 401 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
| 402 |
|
|
I ttalpha, ssbeta, |
| 403 |
|
|
O ustar, bo, bosol, |
| 404 |
|
|
#ifdef ALLOW_SALT_PLUME |
| 405 |
|
|
O boplume, |
| 406 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
| 407 |
|
|
O dVsq, |
| 408 |
mlosch |
1.41 |
I ikppkey, iMin, iMax, jMin, jMax, bi, bj, myTime, myThid ) |
| 409 |
|
|
|
| 410 |
|
|
CMLcph( |
| 411 |
|
|
CMLCADJ store ustar = comlev1_kpp, key = ikppkey |
| 412 |
|
|
CMLcph) |
| 413 |
adcroft |
1.1 |
|
| 414 |
heimbach |
1.4 |
c initialize arrays to zero |
| 415 |
|
|
DO k = 1, Nr |
| 416 |
mlosch |
1.41 |
DO j = 1-OLy, sNy+OLy |
| 417 |
|
|
DO i = 1-OLx, sNx+OLx |
| 418 |
|
|
shsq(i,j,k) = p0 |
| 419 |
jmc |
1.42 |
ENDDO |
| 420 |
|
|
ENDDO |
| 421 |
|
|
ENDDO |
| 422 |
adcroft |
1.1 |
|
| 423 |
|
|
c shsq computation |
| 424 |
|
|
DO k = 1, Nrm1 |
| 425 |
mlosch |
1.41 |
kp1 = k + 1 |
| 426 |
|
|
DO j = jmin, jmax |
| 427 |
|
|
jm1 = j - 1 |
| 428 |
|
|
jp1 = j + 1 |
| 429 |
|
|
DO i = imin, imax |
| 430 |
|
|
im1 = i - 1 |
| 431 |
|
|
ip1 = i + 1 |
| 432 |
|
|
shsq(i,j,k) = p5 * ( |
| 433 |
jmc |
1.42 |
& (uVel(i, j, k,bi,bj)-uVel(i, j, kp1,bi,bj)) * |
| 434 |
|
|
& (uVel(i, j, k,bi,bj)-uVel(i, j, kp1,bi,bj)) + |
| 435 |
|
|
& (uVel(ip1,j, k,bi,bj)-uVel(ip1,j, kp1,bi,bj)) * |
| 436 |
|
|
& (uVel(ip1,j, k,bi,bj)-uVel(ip1,j, kp1,bi,bj)) + |
| 437 |
|
|
& (vVel(i, j, k,bi,bj)-vVel(i, j, kp1,bi,bj)) * |
| 438 |
|
|
& (vVel(i, j, k,bi,bj)-vVel(i, j, kp1,bi,bj)) + |
| 439 |
|
|
& (vVel(i, jp1,k,bi,bj)-vVel(i, jp1,kp1,bi,bj)) * |
| 440 |
|
|
& (vVel(i, jp1,k,bi,bj)-vVel(i, jp1,kp1,bi,bj)) ) |
| 441 |
adcroft |
1.1 |
#ifdef KPP_SMOOTH_SHSQ |
| 442 |
mlosch |
1.41 |
shsq(i,j,k) = p5 * shsq(i,j,k) + p125 * ( |
| 443 |
jmc |
1.42 |
& (uVel(i, jm1,k,bi,bj)-uVel(i, jm1,kp1,bi,bj)) * |
| 444 |
|
|
& (uVel(i, jm1,k,bi,bj)-uVel(i, jm1,kp1,bi,bj)) + |
| 445 |
|
|
& (uVel(ip1,jm1,k,bi,bj)-uVel(ip1,jm1,kp1,bi,bj)) * |
| 446 |
|
|
& (uVel(ip1,jm1,k,bi,bj)-uVel(ip1,jm1,kp1,bi,bj)) + |
| 447 |
|
|
& (uVel(i, jp1,k,bi,bj)-uVel(i, jp1,kp1,bi,bj)) * |
| 448 |
|
|
& (uVel(i, jp1,k,bi,bj)-uVel(i, jp1,kp1,bi,bj)) + |
| 449 |
|
|
& (uVel(ip1,jp1,k,bi,bj)-uVel(ip1,jp1,kp1,bi,bj)) * |
| 450 |
|
|
& (uVel(ip1,jp1,k,bi,bj)-uVel(ip1,jp1,kp1,bi,bj)) + |
| 451 |
|
|
& (vVel(im1,j, k,bi,bj)-vVel(im1,j, kp1,bi,bj)) * |
| 452 |
|
|
& (vVel(im1,j, k,bi,bj)-vVel(im1,j, kp1,bi,bj)) + |
| 453 |
|
|
& (vVel(im1,jp1,k,bi,bj)-vVel(im1,jp1,kp1,bi,bj)) * |
| 454 |
|
|
& (vVel(im1,jp1,k,bi,bj)-vVel(im1,jp1,kp1,bi,bj)) + |
| 455 |
|
|
& (vVel(ip1,j, k,bi,bj)-vVel(ip1,j, kp1,bi,bj)) * |
| 456 |
|
|
& (vVel(ip1,j, k,bi,bj)-vVel(ip1,j, kp1,bi,bj)) + |
| 457 |
|
|
& (vVel(ip1,jp1,k,bi,bj)-vVel(ip1,jp1,kp1,bi,bj)) * |
| 458 |
|
|
& (vVel(ip1,jp1,k,bi,bj)-vVel(ip1,jp1,kp1,bi,bj)) ) |
| 459 |
adcroft |
1.1 |
#endif |
| 460 |
jmc |
1.42 |
ENDDO |
| 461 |
|
|
ENDDO |
| 462 |
|
|
ENDDO |
| 463 |
adcroft |
1.1 |
|
| 464 |
heimbach |
1.11 |
cph( |
| 465 |
heimbach |
1.27 |
#ifdef KPP_AUTODIFF_EXCESSIVE_STORE |
| 466 |
heimbach |
1.16 |
CADJ store dvsq, shsq = comlev1_kpp, key = ikppkey |
| 467 |
heimbach |
1.11 |
#endif |
| 468 |
|
|
cph) |
| 469 |
|
|
|
| 470 |
adcroft |
1.1 |
c----------------------------------------------------------------------- |
| 471 |
|
|
c solve for viscosity, diffusivity, ghat, and hbl on "t-grid" |
| 472 |
|
|
c----------------------------------------------------------------------- |
| 473 |
|
|
|
| 474 |
dimitri |
1.36 |
c precompute background vertical diffusivities, which are needed for |
| 475 |
|
|
c matching diffusivities at bottom of KPP PBL |
| 476 |
|
|
CALL CALC_3D_DIFFUSIVITY( |
| 477 |
|
|
I bi,bj,1-Olx,sNx+OLx,1-Oly,sNy+OLy, |
| 478 |
|
|
I GAD_SALINITY, .FALSE., .FALSE., |
| 479 |
|
|
O KPPdiffKzS(1-Olx,1-Oly,1,bi,bj), |
| 480 |
|
|
I myThid) |
| 481 |
|
|
CALL CALC_3D_DIFFUSIVITY( |
| 482 |
|
|
I bi,bj,1-Olx,sNx+OLx,1-Oly,sNy+OLy, |
| 483 |
|
|
I GAD_TEMPERATURE, .FALSE., .FALSE., |
| 484 |
|
|
O KPPdiffKzT(1-Olx,1-Oly,1,bi,bj), |
| 485 |
|
|
I myThid) |
| 486 |
|
|
|
| 487 |
dimitri |
1.34 |
DO j = 1-OLy, sNy+OLy |
| 488 |
|
|
DO i = 1-OLx, sNx+OLx |
| 489 |
adcroft |
1.1 |
work1(i,j) = nzmax(i,j,bi,bj) |
| 490 |
|
|
work2(i,j) = Fcori(i,j,bi,bj) |
| 491 |
jmc |
1.42 |
ENDDO |
| 492 |
|
|
ENDDO |
| 493 |
adcroft |
1.1 |
CALL TIMER_START('KPPMIX [KPP_CALC]', myThid) |
| 494 |
|
|
CALL KPPMIX ( |
| 495 |
mlosch |
1.40 |
I work1, shsq, dVsq, ustar |
| 496 |
|
|
I , maskC(1-Olx,1-Oly,1,bi,bj) |
| 497 |
dimitri |
1.44 |
I , bo, bosol |
| 498 |
|
|
#ifdef ALLOW_SALT_PLUME |
| 499 |
|
|
I , boplume,SaltPlumeDepth |
| 500 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
| 501 |
|
|
I , dbloc, Ritop, work2 |
| 502 |
dimitri |
1.36 |
I , KPPdiffKzS(1-Olx,1-Oly,1,bi,bj) |
| 503 |
|
|
I , KPPdiffKzT(1-Olx,1-Oly,1,bi,bj) |
| 504 |
heimbach |
1.16 |
I , ikppkey |
| 505 |
adcroft |
1.1 |
O , vddiff |
| 506 |
|
|
U , ghat |
| 507 |
mlosch |
1.40 |
O , hbl |
| 508 |
heimbach |
1.43 |
I , mytime, myIter, mythid ) |
| 509 |
adcroft |
1.1 |
CALL TIMER_STOP ('KPPMIX [KPP_CALC]', myThid) |
| 510 |
|
|
|
| 511 |
|
|
c----------------------------------------------------------------------- |
| 512 |
heimbach |
1.4 |
c zero out land values and transfer to global variables |
| 513 |
adcroft |
1.1 |
c----------------------------------------------------------------------- |
| 514 |
|
|
|
| 515 |
|
|
DO j = jmin, jmax |
| 516 |
heimbach |
1.4 |
DO i = imin, imax |
| 517 |
|
|
DO k = 1, Nr |
| 518 |
mlosch |
1.35 |
km1 = max(1,k-1) |
| 519 |
jmc |
1.28 |
KPPviscAz(i,j,k,bi,bj) = vddiff(i,j,k-1,1) * maskC(i,j,k,bi,bj) |
| 520 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 521 |
jmc |
1.28 |
KPPdiffKzS(i,j,k,bi,bj)= vddiff(i,j,k-1,2) * maskC(i,j,k,bi,bj) |
| 522 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 523 |
jmc |
1.28 |
KPPdiffKzT(i,j,k,bi,bj)= vddiff(i,j,k-1,3) * maskC(i,j,k,bi,bj) |
| 524 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 525 |
jmc |
1.28 |
KPPghat(i,j,k,bi,bj) = ghat(i,j,k) * maskC(i,j,k,bi,bj) |
| 526 |
mlosch |
1.35 |
& * maskC(i,j,km1,bi,bj) |
| 527 |
jmc |
1.42 |
ENDDO |
| 528 |
mlosch |
1.35 |
k = 1 |
| 529 |
|
|
#ifdef ALLOW_SHELFICE |
| 530 |
|
|
if ( useShelfIce ) k = kTopC(i,j,bi,bj) |
| 531 |
|
|
#endif /* ALLOW_SHELFICE */ |
| 532 |
|
|
KPPhbl(i,j,bi,bj) = hbl(i,j) * maskC(i,j,k,bi,bj) |
| 533 |
|
|
|
| 534 |
jmc |
1.42 |
ENDDO |
| 535 |
|
|
ENDDO |
| 536 |
adcroft |
1.1 |
|
| 537 |
|
|
#ifdef KPP_SMOOTH_VISC |
| 538 |
|
|
c horizontal smoothing of vertical viscosity |
| 539 |
|
|
DO k = 1, Nr |
| 540 |
heimbach |
1.4 |
CALL SMOOTH_HORIZ ( |
| 541 |
adcroft |
1.1 |
I k, bi, bj, |
| 542 |
jmc |
1.42 |
U KPPviscAz(1-OLx,1-OLy,k,bi,bj), |
| 543 |
mlosch |
1.40 |
I myThid ) |
| 544 |
jmc |
1.42 |
ENDDO |
| 545 |
|
|
C jmc: No EXCH inside bi,bj loop !!! |
| 546 |
|
|
c _EXCH_XYZ_R8(KPPviscAz , myThid ) |
| 547 |
adcroft |
1.1 |
#endif /* KPP_SMOOTH_VISC */ |
| 548 |
|
|
|
| 549 |
|
|
#ifdef KPP_SMOOTH_DIFF |
| 550 |
|
|
c horizontal smoothing of vertical diffusivity |
| 551 |
|
|
DO k = 1, Nr |
| 552 |
heimbach |
1.4 |
CALL SMOOTH_HORIZ ( |
| 553 |
adcroft |
1.1 |
I k, bi, bj, |
| 554 |
jmc |
1.42 |
U KPPdiffKzS(1-OLx,1-OLy,k,bi,bj), |
| 555 |
mlosch |
1.40 |
I myThid ) |
| 556 |
heimbach |
1.4 |
CALL SMOOTH_HORIZ ( |
| 557 |
adcroft |
1.1 |
I k, bi, bj, |
| 558 |
jmc |
1.42 |
U KPPdiffKzT(1-OLx,1-OLy,k,bi,bj), |
| 559 |
mlosch |
1.40 |
I myThid ) |
| 560 |
jmc |
1.42 |
ENDDO |
| 561 |
adcroft |
1.1 |
#endif /* KPP_SMOOTH_DIFF */ |
| 562 |
heimbach |
1.11 |
|
| 563 |
|
|
cph( |
| 564 |
|
|
cph crucial: this avoids full recomp./call of kppmix |
| 565 |
heimbach |
1.16 |
CADJ store KPPhbl = comlev1_kpp, key = ikppkey |
| 566 |
heimbach |
1.11 |
cph) |
| 567 |
adcroft |
1.1 |
|
| 568 |
|
|
C Compute fraction of solar short-wave flux penetrating to |
| 569 |
|
|
C the bottom of the mixing layer. |
| 570 |
|
|
DO j=1-OLy,sNy+OLy |
| 571 |
|
|
DO i=1-OLx,sNx+OLx |
| 572 |
|
|
worka(i,j) = KPPhbl(i,j,bi,bj) |
| 573 |
|
|
ENDDO |
| 574 |
|
|
ENDDO |
| 575 |
|
|
CALL SWFRAC( |
| 576 |
heimbach |
1.4 |
I (sNx+2*OLx)*(sNy+2*OLy), minusone, |
| 577 |
jmc |
1.42 |
U worka, |
| 578 |
|
|
I myTime, myIter, myThid ) |
| 579 |
adcroft |
1.1 |
DO j=1-OLy,sNy+OLy |
| 580 |
|
|
DO i=1-OLx,sNx+OLx |
| 581 |
heimbach |
1.4 |
KPPfrac(i,j,bi,bj) = worka(i,j) |
| 582 |
adcroft |
1.1 |
ENDDO |
| 583 |
|
|
ENDDO |
| 584 |
|
|
|
| 585 |
dimitri |
1.44 |
#ifdef ALLOW_SALT_PLUME |
| 586 |
|
|
C Compute fraction of saltplume (flux) penetrating to |
| 587 |
|
|
C the bottom of the mixing layer. |
| 588 |
|
|
DO j=1-OLy,sNy+OLy |
| 589 |
|
|
DO i=1-OLx,sNx+OLx |
| 590 |
|
|
worka(i,j) = KPPhbl(i,j,bi,bj) |
| 591 |
|
|
ENDDO |
| 592 |
|
|
ENDDO |
| 593 |
|
|
CALL PLUMEFRAC( |
| 594 |
|
|
I (sNx+2*OLx)*(sNy+2*OLy), minusone,SaltPlumeDepth, |
| 595 |
|
|
U worka, |
| 596 |
|
|
I myTime, myIter, myThid ) |
| 597 |
|
|
DO j=1-OLy,sNy+OLy |
| 598 |
|
|
DO i=1-OLx,sNx+OLx |
| 599 |
|
|
KPPplumefrac(i,j,bi,bj) = worka(i,j) |
| 600 |
|
|
ENDDO |
| 601 |
|
|
ENDDO |
| 602 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
| 603 |
|
|
|
| 604 |
adcroft |
1.1 |
ENDIF |
| 605 |
|
|
|
| 606 |
adcroft |
1.9 |
#endif /* ALLOW_KPP */ |
| 607 |
adcroft |
1.1 |
|
| 608 |
heimbach |
1.8 |
RETURN |
| 609 |
|
|
END |
| 610 |
|
|
|
| 611 |
jmc |
1.42 |
SUBROUTINE KPP_CALC_DUMMY( |
| 612 |
|
|
I bi, bj, myTime, myIter, myThid ) |
| 613 |
|
|
C *==========================================================* |
| 614 |
heimbach |
1.8 |
C | SUBROUTINE KPP_CALC_DUMMY | |
| 615 |
|
|
C | o Compute all KPP fields defined in KPP.h | |
| 616 |
|
|
C | o Dummy routine for TAMC |
| 617 |
jmc |
1.42 |
C *==========================================================* |
| 618 |
heimbach |
1.8 |
C | This subroutine serves as an interface between MITGCMUV | |
| 619 |
|
|
C | code and NCOM 1-D routines in kpp_routines.F | |
| 620 |
jmc |
1.42 |
C *==========================================================* |
| 621 |
heimbach |
1.8 |
IMPLICIT NONE |
| 622 |
|
|
|
| 623 |
|
|
#include "SIZE.h" |
| 624 |
|
|
#include "EEPARAMS.h" |
| 625 |
|
|
#include "PARAMS.h" |
| 626 |
|
|
#include "KPP.h" |
| 627 |
|
|
#include "KPP_PARAMS.h" |
| 628 |
|
|
#include "GRID.h" |
| 629 |
dimitri |
1.36 |
#include "GAD.h" |
| 630 |
heimbach |
1.8 |
|
| 631 |
|
|
c Routine arguments |
| 632 |
jmc |
1.42 |
c bi, bj :: Current tile indices |
| 633 |
|
|
c myTime :: Current time in simulation |
| 634 |
|
|
c myIter :: Current iteration number in simulation |
| 635 |
|
|
c myThid :: My Thread Id. number |
| 636 |
heimbach |
1.8 |
|
| 637 |
|
|
INTEGER bi, bj |
| 638 |
jmc |
1.42 |
_RL myTime |
| 639 |
|
|
INTEGER myIter |
| 640 |
heimbach |
1.8 |
INTEGER myThid |
| 641 |
|
|
|
| 642 |
|
|
#ifdef ALLOW_KPP |
| 643 |
|
|
|
| 644 |
|
|
c Local constants |
| 645 |
|
|
integer i, j, k |
| 646 |
|
|
|
| 647 |
|
|
DO j=1-OLy,sNy+OLy |
| 648 |
|
|
DO i=1-OLx,sNx+OLx |
| 649 |
|
|
KPPhbl (i,j,bi,bj) = 1.0 |
| 650 |
|
|
KPPfrac(i,j,bi,bj) = 0.0 |
| 651 |
dimitri |
1.44 |
#ifdef ALLOW_SALT_PLUME |
| 652 |
|
|
KPPplumefrac(i,j,bi,bj) = 0.0 |
| 653 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
| 654 |
heimbach |
1.8 |
DO k = 1,Nr |
| 655 |
|
|
KPPghat (i,j,k,bi,bj) = 0.0 |
| 656 |
jmc |
1.21 |
KPPviscAz (i,j,k,bi,bj) = viscAr |
| 657 |
heimbach |
1.8 |
ENDDO |
| 658 |
|
|
ENDDO |
| 659 |
|
|
ENDDO |
| 660 |
dimitri |
1.36 |
|
| 661 |
|
|
CALL CALC_3D_DIFFUSIVITY( |
| 662 |
|
|
I bi,bj,1-Olx,sNx+OLx,1-Oly,sNy+OLy, |
| 663 |
|
|
I GAD_SALINITY, .FALSE., .FALSE., |
| 664 |
|
|
O KPPdiffKzS(1-Olx,1-Oly,1,bi,bj), |
| 665 |
|
|
I myThid) |
| 666 |
|
|
CALL CALC_3D_DIFFUSIVITY( |
| 667 |
|
|
I bi,bj,1-Olx,sNx+OLx,1-Oly,sNy+OLy, |
| 668 |
|
|
I GAD_TEMPERATURE, .FALSE., .FALSE., |
| 669 |
|
|
O KPPdiffKzT(1-Olx,1-Oly,1,bi,bj), |
| 670 |
|
|
I myThid) |
| 671 |
|
|
|
| 672 |
heimbach |
1.8 |
#endif |
| 673 |
adcroft |
1.1 |
RETURN |
| 674 |
|
|
END |
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