1 |
gforget |
1.96 |
C $Header: /u/gcmpack/MITgcm/pkg/seaice/seaice_growth.F,v 1.95 2010/10/29 20:36:42 gforget Exp $ |
2 |
jmc |
1.91 |
C $Name: $ |
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4 |
dimitri |
1.69 |
#include "SEAICE_OPTIONS.h" |
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6 |
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CBOP |
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C !ROUTINE: SEAICE_GROWTH |
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C !INTERFACE: |
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SUBROUTINE SEAICE_GROWTH( myTime, myIter, myThid ) |
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C !DESCRIPTION: \bv |
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C *==========================================================* |
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C | SUBROUTINE seaice_growth |
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C | o Updata ice thickness and snow depth |
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C *==========================================================* |
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C \ev |
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C !USES: |
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IMPLICIT NONE |
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C === Global variables === |
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#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 "GRID.h" |
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#include "FFIELDS.h" |
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#include "SEAICE_PARAMS.h" |
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#include "SEAICE.h" |
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#ifdef ALLOW_EXF |
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# include "EXF_OPTIONS.h" |
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# include "EXF_FIELDS.h" |
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# include "EXF_PARAM.h" |
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#endif |
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#ifdef ALLOW_SALT_PLUME |
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# include "SALT_PLUME.h" |
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#endif |
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#ifdef ALLOW_AUTODIFF_TAMC |
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# include "tamc.h" |
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#endif |
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C !INPUT/OUTPUT PARAMETERS: |
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C === Routine arguments === |
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C myTime :: Simulation time |
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C myIter :: Simulation timestep number |
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C myThid :: Thread no. that called this routine. |
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_RL myTime |
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INTEGER myIter, myThid |
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C !LOCAL VARIABLES: |
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C === Local variables === |
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gforget |
1.89 |
C |
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jmc |
1.91 |
C unit/sign convention: |
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C Within the thermodynamic computation all stocks, except HSNOW, |
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gforget |
1.89 |
C are in 'effective ice meters' units, and >0 implies more ice. |
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jmc |
1.91 |
C This holds for stocks due to ocean and atmosphere heat, |
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C at the outset of 'PART 2: determine heat fluxes/stocks' |
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gforget |
1.89 |
C and until 'PART 7: determine ocean model forcing' |
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C This strategy minimizes the need for multiplications/divisions |
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jmc |
1.91 |
C by ice fraction, heat capacity, etc. The only conversions that |
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C occurs are for the HSNOW (in effective snow meters) and |
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C PRECIP (fresh water m/s). |
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gforget |
1.89 |
c |
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c HEFF is effective Hice thickness (m3/m2) |
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c HSNOW is Heffective snow thickness (m3/m2) |
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c HSALT is Heffective salt content (g/m2) |
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c AREA is the seaice cover fraction (0<=AREA<=1) |
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c Q denotes heat stocks -- converted to ice stocks (m3/m2) early on |
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c |
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jmc |
1.91 |
c For all other stocks/increments, such as d_HEFFbyATMonOCN |
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gforget |
1.89 |
c or a_QbyATM_cover, the naming convention is as follows: |
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jmc |
1.91 |
c The prefix 'a_' means available, the prefix 'd_' means delta |
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c (i.e. increment), and the prefix 'r_' means residual. |
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gforget |
1.89 |
c The suffix '_cover' denotes a value for the ice covered fraction |
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c of the grid cell, whereas '_cover' is for the open water fraction. |
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jmc |
1.91 |
c The main part of the name states what ice/snow stock is concerned |
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gforget |
1.89 |
c (e.g. QbyATM or HEFF), and how it is affected (e.g. d_HEFFbyATMonOCN |
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jmc |
1.91 |
c is the increment of HEFF due to the ATMosphere extracting heat from the |
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gforget |
1.89 |
c OCeaN surface, or providing heat to the OCeaN surface). |
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CEOP |
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dimitri |
1.69 |
C i,j,bi,bj :: Loop counters |
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INTEGER i, j, bi, bj |
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C number of surface interface layer |
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INTEGER kSurface |
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C constants |
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gforget |
1.80 |
_RL TBC, ICE2SNOW |
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gforget |
1.85 |
_RL QI, QS, Lfusion |
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dimitri |
1.69 |
|
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jmc |
1.91 |
C a_QbyATM_cover :: available heat (in W/m^2) due to the interaction of |
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gforget |
1.75 |
C the atmosphere and the ocean surface - for ice covered water |
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gforget |
1.89 |
C a_QbyATM_open :: same but for open water |
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gforget |
1.84 |
C r_QbyATM_cover :: residual of a_QbyATM_cover after freezing/melting processes |
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gforget |
1.89 |
C r_QbyATM_open :: same but for open water |
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gforget |
1.76 |
_RL a_QbyATM_cover (1:sNx,1:sNy) |
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_RL a_QbyATM_open (1:sNx,1:sNy) |
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_RL r_QbyATM_cover (1:sNx,1:sNy) |
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gforget |
1.89 |
_RL r_QbyATM_open (1:sNx,1:sNy) |
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gforget |
1.75 |
C a_QSWbyATM_open - short wave heat flux over ocean in W/m^2 |
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C a_QSWbyATM_cover - short wave heat flux under ice in W/m^2 |
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gforget |
1.76 |
_RL a_QSWbyATM_open (1:sNx,1:sNy) |
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_RL a_QSWbyATM_cover (1:sNx,1:sNy) |
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jmc |
1.91 |
C a_QbyOCN :: available heat (in in W/m^2) due to the |
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gforget |
1.76 |
C interaction of the ice pack and the ocean surface |
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jmc |
1.91 |
C r_QbyOCN :: residual of a_QbyOCN after freezing/melting |
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gforget |
1.75 |
C processes have been accounted for |
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gforget |
1.84 |
_RL a_QbyOCN (1:sNx,1:sNy) |
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_RL r_QbyOCN (1:sNx,1:sNy) |
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gforget |
1.76 |
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c conversion factors to go from Q (W/m2) to HEFF (ice meters) |
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_RL convertQ2HI, convertHI2Q |
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c conversion factors to go from precip (m/s) unit to HEFF (ice meters) |
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_RL convertPRECIP2HI, convertHI2PRECIP |
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gforget |
1.75 |
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c ICE/SNOW stocks tendencies associated with the various melt/freeze processes |
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gforget |
1.76 |
_RL d_AREAbyATM (1:sNx,1:sNy) |
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gforget |
1.71 |
c |
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gforget |
1.87 |
_RL d_HEFFbyNEG (1:sNx,1:sNy) |
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gforget |
1.84 |
_RL d_HEFFbyOCNonICE (1:sNx,1:sNy) |
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gforget |
1.75 |
_RL d_HEFFbyATMonOCN (1:sNx,1:sNy) |
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gforget |
1.84 |
_RL d_HEFFbyFLOODING (1:sNx,1:sNy) |
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gforget |
1.73 |
c |
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gforget |
1.90 |
_RL d_HEFFbyATMonOCN_open(1:sNx,1:sNy) |
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c |
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gforget |
1.87 |
_RL d_HSNWbyNEG (1:sNx,1:sNy) |
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gforget |
1.84 |
_RL d_HSNWbyATMonSNW (1:sNx,1:sNy) |
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gforget |
1.75 |
_RL d_HSNWbyOCNonSNW (1:sNx,1:sNy) |
126 |
gforget |
1.84 |
_RL d_HSNWbyRAIN (1:sNx,1:sNy) |
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c |
128 |
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_RL d_HFRWbyRAIN (1:sNx,1:sNy) |
129 |
gforget |
1.71 |
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dimitri |
1.69 |
C actual ice thickness with upper and lower limit |
131 |
gforget |
1.83 |
_RL heffActual (1:sNx,1:sNy) |
132 |
dimitri |
1.69 |
C actual snow thickness |
133 |
gforget |
1.83 |
_RL hsnowActual (1:sNx,1:sNy) |
134 |
gforget |
1.87 |
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C AREA_PRE :: hold sea-ice fraction field before any seaice-thermo update |
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_RL AREApreTH (1:sNx,1:sNy) |
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_RL HEFFpreTH (1:sNx,1:sNy) |
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_RL HSNWpreTH (1:sNx,1:sNy) |
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dimitri |
1.69 |
C wind speed |
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gforget |
1.76 |
_RL UG (1:sNx,1:sNy) |
142 |
dimitri |
1.69 |
_RL SPEED_SQ |
143 |
gforget |
1.96 |
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C pathological cases thresholds |
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gforget |
1.92 |
_RL heffTooThin, heffTooHeavy |
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dimitri |
1.69 |
|
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gforget |
1.75 |
c temporary variables available for the various computations |
148 |
gforget |
1.88 |
_RL tmpscal0, tmpscal1, tmpscal2, tmpscal3, tmpscal4 |
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gforget |
1.76 |
_RL tmparr1 (1:sNx,1:sNy) |
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gforget |
1.75 |
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#ifdef ALLOW_SEAICE_FLOODING |
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_RL hDraft |
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#endif /* ALLOW_SEAICE_FLOODING */ |
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jmc |
1.91 |
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gforget |
1.75 |
#ifdef SEAICE_SALINITY |
157 |
gforget |
1.83 |
_RL saltFluxAdjust (1:sNx,1:sNy) |
158 |
gforget |
1.75 |
#endif |
159 |
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160 |
dimitri |
1.69 |
#ifdef SEAICE_MULTICATEGORY |
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INTEGER it |
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INTEGER ilockey |
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_RL RK |
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gforget |
1.83 |
_RL heffActualP (1:sNx,1:sNy) |
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_RL a_QbyATMmult_cover (1:sNx,1:sNy) |
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_RL a_QSWbyATMmult_cover(1:sNx,1:sNy) |
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dimitri |
1.69 |
#endif |
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#ifdef ALLOW_DIAGNOSTICS |
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_RL DIAGarray (1:sNx,1:sNy) |
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LOGICAL DIAGNOSTICS_IS_ON |
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EXTERNAL DIAGNOSTICS_IS_ON |
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#endif |
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gforget |
1.88 |
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c =================================================================== |
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c =================PART 0: constants and initializations============= |
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c =================================================================== |
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183 |
dimitri |
1.69 |
IF ( buoyancyRelation .EQ. 'OCEANICP' ) THEN |
184 |
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kSurface = Nr |
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ELSE |
186 |
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kSurface = 1 |
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ENDIF |
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gforget |
1.92 |
c Cutoff for very thin ice |
190 |
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heffTooThin=1. _d -5 |
191 |
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c Cutoff for iceload |
192 |
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heffTooHeavy=dRf(kSurface) / 5. _d 0 |
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194 |
dimitri |
1.69 |
C FREEZING TEMP. OF SEA WATER (deg C) |
195 |
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TBC = SEAICE_freeze |
196 |
gforget |
1.80 |
|
197 |
dimitri |
1.69 |
C RATIO OF SEA ICE DENSITY to SNOW DENSITY |
198 |
gforget |
1.80 |
ICE2SNOW = SEAICE_rhoIce/SEAICE_rhoSnow |
199 |
gforget |
1.85 |
|
200 |
gforget |
1.89 |
C FRESH ICE/SNOW LATENT HEAT OF FUSION (J/kg) |
201 |
gforget |
1.85 |
Lfusion = 3.34 _d +05 |
202 |
dimitri |
1.69 |
C HEAT OF FUSION OF ICE (J/m^3) |
203 |
gforget |
1.85 |
QI = SEAICE_rhoIce*Lfusion |
204 |
dimitri |
1.69 |
C HEAT OF FUSION OF SNOW (J/m^3) |
205 |
gforget |
1.85 |
QS = SEAICE_rhoSnow*Lfusion |
206 |
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C |
207 |
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C note that QI/QS=ICE2SNOW -- except it wasnt in old code |
208 |
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209 |
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210 |
dimitri |
1.69 |
|
211 |
gforget |
1.76 |
c conversion factors to go from Q (W/m2) to HEFF (ice meters) |
212 |
gforget |
1.84 |
convertQ2HI=SEAICE_deltaTtherm/QI |
213 |
gforget |
1.76 |
convertHI2Q=1/convertQ2HI |
214 |
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c conversion factors to go from precip (m/s) unit to HEFF (ice meters) |
215 |
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convertPRECIP2HI=SEAICE_deltaTtherm*rhoConstFresh/SEAICE_rhoIce |
216 |
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convertHI2PRECIP=1./convertPRECIP2HI |
217 |
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218 |
dimitri |
1.69 |
DO bj=myByLo(myThid),myByHi(myThid) |
219 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
220 |
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c |
221 |
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#ifdef ALLOW_AUTODIFF_TAMC |
222 |
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act1 = bi - myBxLo(myThid) |
223 |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
224 |
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act2 = bj - myByLo(myThid) |
225 |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
226 |
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act3 = myThid - 1 |
227 |
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max3 = nTx*nTy |
228 |
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act4 = ikey_dynamics - 1 |
229 |
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iicekey = (act1 + 1) + act2*max1 |
230 |
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& + act3*max1*max2 |
231 |
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& + act4*max1*max2*max3 |
232 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
233 |
gforget |
1.75 |
|
234 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
235 |
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CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
236 |
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CADJ & key = iicekey, byte = isbyte |
237 |
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CADJ STORE qnet(:,:,bi,bj) = comlev1_bibj, |
238 |
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CADJ & key = iicekey, byte = isbyte |
239 |
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CADJ STORE qsw(:,:,bi,bj) = comlev1_bibj, |
240 |
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CADJ & key = iicekey, byte = isbyte |
241 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
242 |
gforget |
1.75 |
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243 |
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244 |
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C array initializations |
245 |
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C ===================== |
246 |
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247 |
dimitri |
1.69 |
DO J=1,sNy |
248 |
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DO I=1,sNx |
249 |
gforget |
1.90 |
a_QbyATM_cover (I,J) = 0.0 _d 0 |
250 |
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a_QbyATM_open(I,J) = 0.0 _d 0 |
251 |
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r_QbyATM_cover (I,J) = 0.0 _d 0 |
252 |
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r_QbyATM_open (I,J) = 0.0 _d 0 |
253 |
gforget |
1.75 |
c |
254 |
gforget |
1.71 |
a_QSWbyATM_open (I,J) = 0.0 _d 0 |
255 |
gforget |
1.90 |
a_QSWbyATM_cover (I,J) = 0.0 _d 0 |
256 |
gforget |
1.75 |
c |
257 |
gforget |
1.90 |
a_QbyOCN (I,J) = 0.0 _d 0 |
258 |
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r_QbyOCN (I,J) = 0.0 _d 0 |
259 |
gforget |
1.75 |
c |
260 |
gforget |
1.90 |
d_AREAbyATM(I,J) = 0.0 _d 0 |
261 |
gforget |
1.75 |
c |
262 |
gforget |
1.84 |
d_HEFFbyOCNonICE(I,J) = 0.0 _d 0 |
263 |
gforget |
1.75 |
d_HEFFbyATMonOCN(I,J) = 0.0 _d 0 |
264 |
gforget |
1.84 |
d_HEFFbyFLOODING(I,J) = 0.0 _d 0 |
265 |
gforget |
1.75 |
c |
266 |
gforget |
1.90 |
d_HEFFbyATMonOCN_open(I,J) = 0.0 _d 0 |
267 |
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c |
268 |
gforget |
1.84 |
d_HSNWbyATMonSNW(I,J) = 0.0 _d 0 |
269 |
gforget |
1.75 |
d_HSNWbyOCNonSNW(I,J) = 0.0 _d 0 |
270 |
gforget |
1.90 |
d_HSNWbyRAIN(I,J) = 0.0 _d 0 |
271 |
gforget |
1.84 |
c |
272 |
gforget |
1.90 |
d_HFRWbyRAIN(I,J) = 0.0 _d 0 |
273 |
gforget |
1.75 |
c |
274 |
gforget |
1.90 |
tmparr1(I,J) = 0.0 _d 0 |
275 |
gforget |
1.75 |
c |
276 |
dimitri |
1.69 |
#ifdef SEAICE_SALINITY |
277 |
gforget |
1.90 |
saltFluxAdjust(I,J) = 0.0 _d 0 |
278 |
dimitri |
1.69 |
#endif |
279 |
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#ifdef SEAICE_MULTICATEGORY |
280 |
gforget |
1.90 |
a_QbyATMmult_cover(I,J) = 0.0 _d 0 |
281 |
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a_QSWbyATMmult_cover(I,J) = 0.0 _d 0 |
282 |
dimitri |
1.69 |
#endif |
283 |
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ENDDO |
284 |
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ENDDO |
285 |
gforget |
1.84 |
#ifdef ALLOW_MEAN_SFLUX_COST_CONTRIBUTION |
286 |
dimitri |
1.69 |
DO J=1-oLy,sNy+oLy |
287 |
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DO I=1-oLx,sNx+oLx |
288 |
gforget |
1.90 |
frWtrAtm(I,J,bi,bj) = 0.0 _d 0 |
289 |
dimitri |
1.69 |
ENDDO |
290 |
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ENDDO |
291 |
gforget |
1.84 |
#endif |
292 |
dimitri |
1.69 |
|
293 |
gforget |
1.87 |
|
294 |
gforget |
1.88 |
|
295 |
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c ===================================================================== |
296 |
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c ===========PART 1: treat pathological cases (post advdiff)=========== |
297 |
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c ===================================================================== |
298 |
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299 |
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300 |
gforget |
1.87 |
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301 |
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#ifndef SEAICE_GROWTH_LEGACY |
302 |
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303 |
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c 1) treat the case of negative values: |
304 |
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c |
305 |
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#ifdef ALLOW_AUTODIFF_TAMC |
306 |
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CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
307 |
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CADJ & key = iicekey, byte = isbyte |
308 |
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CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
309 |
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CADJ & key = iicekey, byte = isbyte |
310 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
311 |
|
|
CADJ & key = iicekey, byte = isbyte |
312 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
313 |
|
|
DO J=1,sNy |
314 |
|
|
DO I=1,sNx |
315 |
gforget |
1.89 |
d_HEFFbyNEG(I,J)=MAX(-HEFF(I,J,bi,bj),0. _d 0) |
316 |
gforget |
1.87 |
HEFF(I,J,bi,bj)=HEFF(I,J,bi,bj)+d_HEFFbyNEG(I,J) |
317 |
gforget |
1.89 |
d_HSNWbyNEG(I,J)=MAX(-HSNOW(I,J,bi,bj),0. _d 0) |
318 |
gforget |
1.87 |
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)+d_HSNWbyNEG(I,J) |
319 |
|
|
AREA(I,J,bi,bj)=MAX(AREA(I,J,bi,bj),0. _d 0) |
320 |
|
|
ENDDO |
321 |
|
|
ENDDO |
322 |
|
|
|
323 |
gforget |
1.92 |
c 1.25) treat the case of very thin ice: |
324 |
|
|
c |
325 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
326 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
327 |
|
|
CADJ & key = iicekey, byte = isbyte |
328 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
329 |
|
|
CADJ & key = iicekey, byte = isbyte |
330 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
331 |
|
|
CADJ & key = iicekey, byte = isbyte |
332 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
333 |
|
|
DO J=1,sNy |
334 |
|
|
DO I=1,sNx |
335 |
|
|
if (HEFF(I,J,bi,bj).LE.heffTooThin) then |
336 |
|
|
tmpscal2=-HEFF(I,J,bi,bj) |
337 |
|
|
tmpscal3=-HSNOW(I,J,bi,bj) |
338 |
gforget |
1.96 |
TICE(I,J,bi,bj)=celsius2K |
339 |
gforget |
1.92 |
else |
340 |
|
|
tmpscal2=0. _d 0 |
341 |
|
|
tmpscal3=0. _d 0 |
342 |
|
|
endif |
343 |
|
|
HEFF(I,J,bi,bj)=HEFF(I,J,bi,bj)+tmpscal2 |
344 |
|
|
d_HEFFbyNEG(I,J)=d_HEFFbyNEG(I,J)+tmpscal2 |
345 |
|
|
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)+tmpscal3 |
346 |
|
|
d_HSNWbyNEG(I,J)=d_HSNWbyNEG(I,J)+tmpscal3 |
347 |
|
|
ENDDO |
348 |
|
|
ENDDO |
349 |
|
|
|
350 |
gforget |
1.90 |
c 1.5) treat the case of area but no ice/snow: |
351 |
|
|
c |
352 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
353 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
354 |
|
|
CADJ & key = iicekey, byte = isbyte |
355 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
356 |
|
|
CADJ & key = iicekey, byte = isbyte |
357 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
358 |
|
|
CADJ & key = iicekey, byte = isbyte |
359 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
360 |
|
|
DO J=1,sNy |
361 |
|
|
DO I=1,sNx |
362 |
|
|
IF ((HEFF(i,j,bi,bj).EQ.0. _d 0).AND. |
363 |
|
|
& (HSNOW(i,j,bi,bj).EQ.0. _d 0)) AREA(I,J,bi,bj)=0. _d 0 |
364 |
|
|
ENDDO |
365 |
|
|
ENDDO |
366 |
|
|
|
367 |
gforget |
1.87 |
c 2) treat the case of very small area: |
368 |
|
|
c |
369 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
370 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
371 |
|
|
CADJ & key = iicekey, byte = isbyte |
372 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
373 |
|
|
DO J=1,sNy |
374 |
|
|
DO I=1,sNx |
375 |
jmc |
1.91 |
IF ((HEFF(i,j,bi,bj).GT.0).OR.(HSNOW(i,j,bi,bj).GT.0)) |
376 |
gforget |
1.87 |
& AREA(I,J,bi,bj)=MAX(AREA(I,J,bi,bj),areaMin) |
377 |
|
|
ENDDO |
378 |
|
|
ENDDO |
379 |
|
|
|
380 |
gforget |
1.89 |
c 2.5) treat case of excessive ice cover: |
381 |
|
|
c |
382 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
383 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
384 |
|
|
CADJ & key = iicekey, byte = isbyte |
385 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
386 |
|
|
DO J=1,sNy |
387 |
|
|
DO I=1,sNx |
388 |
|
|
AREA(I,J,bi,bj)=MIN(AREA(I,J,bi,bj),areaMax) |
389 |
|
|
ENDDO |
390 |
|
|
ENDDO |
391 |
|
|
|
392 |
gforget |
1.87 |
c 3) store regularized values of heff, hsnow, area at the onset of thermo. |
393 |
|
|
DO J=1,sNy |
394 |
|
|
DO I=1,sNx |
395 |
|
|
HEFFpreTH(I,J)=HEFF(I,J,bi,bj) |
396 |
|
|
HSNWpreTH(I,J)=HSNOW(I,J,bi,bj) |
397 |
|
|
AREApreTH(I,J)=AREA(I,J,bi,bj) |
398 |
|
|
ENDDO |
399 |
|
|
ENDDO |
400 |
|
|
|
401 |
|
|
c 4) treat sea ice salinity pathological cases |
402 |
|
|
#ifdef SEAICE_SALINITY |
403 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
404 |
|
|
CADJ STORE hsalt(:,:,bi,bj) = comlev1_bibj, |
405 |
|
|
CADJ & key = iicekey, byte = isbyte |
406 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
407 |
|
|
CADJ & key = iicekey, byte = isbyte |
408 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
409 |
|
|
DO J=1,sNy |
410 |
|
|
DO I=1,sNx |
411 |
|
|
IF ( (HSALT(I,J,bi,bj) .LT. 0.0).OR. |
412 |
|
|
& (HEFF(I,J,bi,bj) .EQ. 0.0) ) THEN |
413 |
|
|
saltFluxAdjust(I,J) = - HEFFM(I,J,bi,bj) * |
414 |
|
|
& HSALT(I,J,bi,bj) / SEAICE_deltaTtherm |
415 |
|
|
HSALT(I,J,bi,bj) = 0.0 _d 0 |
416 |
|
|
ENDIF |
417 |
|
|
ENDDO |
418 |
|
|
ENDDO |
419 |
|
|
#endif /* SEAICE_SALINITY */ |
420 |
|
|
|
421 |
|
|
c 5) treat sea ice age pathological cases |
422 |
|
|
c ... |
423 |
jmc |
1.91 |
|
424 |
gforget |
1.87 |
#else |
425 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
426 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
427 |
|
|
CADJ & key = iicekey, byte = isbyte |
428 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
429 |
dimitri |
1.69 |
DO J=1,sNy |
430 |
|
|
DO I=1,sNx |
431 |
gforget |
1.87 |
HEFFpreTH(I,J)=HEFFNM1(I,J,bi,bj) |
432 |
|
|
HSNWpreTH(I,J)=HSNOW(I,J,bi,bj) |
433 |
|
|
AREApreTH(I,J)=AREANM1(I,J,bi,bj) |
434 |
|
|
d_HEFFbyNEG(I,J)=0. _d 0 |
435 |
|
|
d_HSNWbyNEG(I,J)=0. _d 0 |
436 |
dimitri |
1.69 |
ENDDO |
437 |
|
|
ENDDO |
438 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
439 |
dimitri |
1.69 |
|
440 |
|
|
|
441 |
gforget |
1.89 |
c 4) COMPUTE ACTUAL ICE/SNOW THICKNESS; USE MIN/MAX VALUES |
442 |
|
|
c TO REGULARIZE SEAICE_SOLVE4TEMP/d_AREA COMPUTATIONS |
443 |
gforget |
1.87 |
c |
444 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
445 |
gforget |
1.87 |
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
446 |
|
|
CADJ & key = iicekey, byte = isbyte |
447 |
dimitri |
1.69 |
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
448 |
|
|
CADJ & key = iicekey, byte = isbyte |
449 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
450 |
|
|
CADJ & key = iicekey, byte = isbyte |
451 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
452 |
|
|
DO J=1,sNy |
453 |
|
|
DO I=1,sNx |
454 |
gforget |
1.87 |
tmpscal1 = MAX(areaMin,AREApreTH(I,J)) |
455 |
|
|
hsnowActual(I,J) = HSNWpreTH(I,J)/tmpscal1 |
456 |
|
|
tmpscal2 = HEFFpreTH(I,J)/tmpscal1 |
457 |
|
|
heffActual(I,J) = MAX(tmpscal2,hiceMin) |
458 |
gforget |
1.89 |
cgf do we need to keep this comment? |
459 |
|
|
C |
460 |
dimitri |
1.69 |
C Capping the actual ice thickness effectively enforces a |
461 |
|
|
C minimum of heat flux through the ice and helps getting rid of |
462 |
|
|
C very thick ice. |
463 |
|
|
cdm actually, this does exactly the opposite, i.e., ice is thicker |
464 |
gforget |
1.83 |
cdm when heffActual is capped, so I am commenting out |
465 |
|
|
cdm heffActual(I,J) = MIN(heffActual(I,J),9.0 _d +00) |
466 |
dimitri |
1.69 |
ENDDO |
467 |
|
|
ENDDO |
468 |
|
|
|
469 |
gforget |
1.95 |
#ifdef ALLOW_AUTODIFF_TAMC |
470 |
gforget |
1.96 |
#ifdef SEAICE_SIMPLIFY_GROWTH_ADJ |
471 |
gforget |
1.95 |
CALL ZERO_ADJ_1D( sNx*sNy, heffActual, myThid) |
472 |
gforget |
1.96 |
CALL ZERO_ADJ_1D( sNx*sNy, hsnowActual, myThid) |
473 |
gforget |
1.95 |
#endif |
474 |
|
|
#endif |
475 |
gforget |
1.87 |
|
476 |
gforget |
1.88 |
c =================================================================== |
477 |
gforget |
1.89 |
c ================PART 2: determine heat fluxes/stocks=============== |
478 |
gforget |
1.88 |
c =================================================================== |
479 |
|
|
|
480 |
|
|
|
481 |
|
|
|
482 |
gforget |
1.75 |
C determine available heat due to the atmosphere -- for open water |
483 |
|
|
C ================================================================ |
484 |
|
|
|
485 |
|
|
C ocean surface/mixed layer temperature |
486 |
dimitri |
1.69 |
DO J=1,sNy |
487 |
|
|
DO I=1,sNx |
488 |
gforget |
1.83 |
TMIX(I,J,bi,bj)=theta(I,J,kSurface,bi,bj)+celsius2K |
489 |
dimitri |
1.69 |
ENDDO |
490 |
|
|
ENDDO |
491 |
|
|
|
492 |
gforget |
1.75 |
C wind speed from exf |
493 |
dimitri |
1.69 |
DO J=1,sNy |
494 |
|
|
DO I=1,sNx |
495 |
|
|
UG(I,J) = MAX(SEAICE_EPS,wspeed(I,J,bi,bj)) |
496 |
|
|
ENDDO |
497 |
|
|
ENDDO |
498 |
|
|
|
499 |
gforget |
1.75 |
CALL SEAICE_BUDGET_OCEAN( |
500 |
|
|
I UG, |
501 |
|
|
U TMIX, |
502 |
|
|
O a_QbyATM_open, a_QSWbyATM_open, |
503 |
|
|
I bi, bj, myTime, myIter, myThid ) |
504 |
|
|
|
505 |
|
|
|
506 |
|
|
C determine available heat due to the atmosphere -- for ice covered water |
507 |
|
|
C ======================================================================= |
508 |
dimitri |
1.69 |
|
509 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
510 |
|
|
CADJ STORE tice = comlev1, key = ikey_dynamics, byte = isbyte |
511 |
|
|
# ifdef SEAICE_MULTICATEGORY |
512 |
|
|
CADJ STORE tices = comlev1, key = ikey_dynamics, byte = isbyte |
513 |
|
|
# endif |
514 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
515 |
|
|
|
516 |
gforget |
1.89 |
#ifdef ALLOW_ATM_WIND |
517 |
dimitri |
1.69 |
IF (useRelativeWind) THEN |
518 |
|
|
C Compute relative wind speed over sea ice. |
519 |
|
|
DO J=1,sNy |
520 |
|
|
DO I=1,sNx |
521 |
|
|
SPEED_SQ = |
522 |
|
|
& (uWind(I,J,bi,bj) |
523 |
|
|
& +0.5 _d 0*(uVel(i,j,kSurface,bi,bj) |
524 |
|
|
& +uVel(i+1,j,kSurface,bi,bj)) |
525 |
|
|
& -0.5 _d 0*(uice(i,j,bi,bj)+uice(i+1,j,bi,bj)))**2 |
526 |
|
|
& +(vWind(I,J,bi,bj) |
527 |
|
|
& +0.5 _d 0*(vVel(i,j,kSurface,bi,bj) |
528 |
|
|
& +vVel(i,j+1,kSurface,bi,bj)) |
529 |
|
|
& -0.5 _d 0*(vice(i,j,bi,bj)+vice(i,j+1,bi,bj)))**2 |
530 |
|
|
IF ( SPEED_SQ .LE. SEAICE_EPS_SQ ) THEN |
531 |
|
|
UG(I,J)=SEAICE_EPS |
532 |
|
|
ELSE |
533 |
|
|
UG(I,J)=SQRT(SPEED_SQ) |
534 |
|
|
ENDIF |
535 |
|
|
ENDDO |
536 |
|
|
ENDDO |
537 |
|
|
ENDIF |
538 |
gforget |
1.89 |
#endif |
539 |
gforget |
1.75 |
|
540 |
dimitri |
1.69 |
#ifdef SEAICE_MULTICATEGORY |
541 |
|
|
C-- Start loop over muli-categories |
542 |
|
|
DO IT=1,MULTDIM |
543 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
544 |
|
|
ilockey = (iicekey-1)*MULTDIM + IT |
545 |
|
|
CADJ STORE tices(:,:,it,bi,bj) = comlev1_multdim, |
546 |
|
|
CADJ & key = ilockey, byte = isbyte |
547 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
548 |
|
|
RK=REAL(IT) |
549 |
|
|
DO J=1,sNy |
550 |
|
|
DO I=1,sNx |
551 |
gforget |
1.83 |
heffActualP(I,J)= |
552 |
|
|
& (heffActual(I,J)/MULTDIM)*((2.0 _d 0*RK)-1.0 _d 0) |
553 |
dimitri |
1.69 |
TICE(I,J,bi,bj)=TICES(I,J,IT,bi,bj) |
554 |
|
|
ENDDO |
555 |
|
|
ENDDO |
556 |
jmc |
1.70 |
CALL SEAICE_SOLVE4TEMP( |
557 |
gforget |
1.83 |
I UG, heffActualP, hsnowActual, |
558 |
dimitri |
1.69 |
U TICE, |
559 |
gforget |
1.71 |
O a_QbyATMmult_cover, a_QSWbyATMmult_cover, |
560 |
dimitri |
1.69 |
I bi, bj, myTime, myIter, myThid ) |
561 |
|
|
DO J=1,sNy |
562 |
|
|
DO I=1,sNx |
563 |
gforget |
1.75 |
C average over categories |
564 |
jmc |
1.91 |
a_QbyATM_cover (I,J) = |
565 |
gforget |
1.71 |
& a_QbyATM_cover(I,J) + a_QbyATMmult_cover(I,J)/MULTDIM |
566 |
jmc |
1.91 |
a_QSWbyATM_cover (I,J) = |
567 |
gforget |
1.71 |
& a_QSWbyATM_cover(I,J) + a_QSWbyATMmult_cover(I,J)/MULTDIM |
568 |
dimitri |
1.69 |
TICES(I,J,IT,bi,bj) = TICE(I,J,bi,bj) |
569 |
|
|
ENDDO |
570 |
|
|
ENDDO |
571 |
|
|
ENDDO |
572 |
|
|
C-- End loop over multi-categories |
573 |
|
|
#else /* SEAICE_MULTICATEGORY */ |
574 |
jmc |
1.70 |
CALL SEAICE_SOLVE4TEMP( |
575 |
gforget |
1.83 |
I UG, heffActual, hsnowActual, |
576 |
dimitri |
1.69 |
U TICE, |
577 |
gforget |
1.71 |
O a_QbyATM_cover, a_QSWbyATM_cover, |
578 |
dimitri |
1.69 |
I bi, bj, myTime, myIter, myThid ) |
579 |
|
|
#endif /* SEAICE_MULTICATEGORY */ |
580 |
|
|
|
581 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
582 |
|
|
IF ( useDiagnostics ) THEN |
583 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIatmQnt',myThid) ) THEN |
584 |
|
|
DO J=1,sNy |
585 |
|
|
DO I=1,sNx |
586 |
|
|
DIAGarray(I,J) = maskC(I,J,kSurface,bi,bj) * ( |
587 |
gforget |
1.87 |
& a_QbyATM_cover(I,J) * AREApreTH(I,J) + |
588 |
|
|
& a_QbyATM_open(I,J) * ( ONE - AREApreTH(I,J) ) ) |
589 |
dimitri |
1.69 |
ENDDO |
590 |
|
|
ENDDO |
591 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIatmQnt',0,1,3,bi,bj,myThid) |
592 |
|
|
ENDIF |
593 |
|
|
ENDIF |
594 |
|
|
#endif |
595 |
|
|
|
596 |
gforget |
1.83 |
c switch heat fluxes from W/m2 to 'effective' ice meters |
597 |
|
|
DO J=1,sNy |
598 |
|
|
DO I=1,sNx |
599 |
jmc |
1.91 |
a_QbyATM_cover(I,J) = a_QbyATM_cover(I,J) |
600 |
gforget |
1.87 |
& * convertQ2HI * AREApreTH(I,J) |
601 |
jmc |
1.91 |
a_QSWbyATM_cover(I,J) = a_QSWbyATM_cover(I,J) |
602 |
gforget |
1.87 |
& * convertQ2HI * AREApreTH(I,J) |
603 |
jmc |
1.91 |
a_QbyATM_open(I,J) = a_QbyATM_open(I,J) |
604 |
gforget |
1.87 |
& * convertQ2HI * ( ONE - AREApreTH(I,J) ) |
605 |
jmc |
1.91 |
a_QSWbyATM_open(I,J) = a_QSWbyATM_open(I,J) |
606 |
gforget |
1.87 |
& * convertQ2HI * ( ONE - AREApreTH(I,J) ) |
607 |
gforget |
1.89 |
c and initialize r_QbyATM_cover/r_QbyATM_open |
608 |
gforget |
1.84 |
r_QbyATM_cover(I,J)=a_QbyATM_cover(I,J) |
609 |
gforget |
1.89 |
r_QbyATM_open(I,J)=a_QbyATM_open(I,J) |
610 |
gforget |
1.83 |
ENDDO |
611 |
|
|
ENDDO |
612 |
gforget |
1.75 |
|
613 |
|
|
|
614 |
jmc |
1.91 |
C determine available heat due to the ice pack tying the |
615 |
gforget |
1.75 |
C underlying surface water temperature to freezing point |
616 |
|
|
C ====================================================== |
617 |
|
|
|
618 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
619 |
|
|
CADJ STORE theta(:,:,:,bi,bj) = comlev1_bibj, |
620 |
|
|
CADJ & key = iicekey, byte = isbyte |
621 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
622 |
|
|
CADJ & key = iicekey, byte = isbyte |
623 |
|
|
#endif |
624 |
gforget |
1.72 |
|
625 |
dimitri |
1.69 |
DO J=1,sNy |
626 |
|
|
DO I=1,sNx |
627 |
|
|
IF ( .NOT. inAdMode ) THEN |
628 |
|
|
#ifdef SEAICE_VARIABLE_FREEZING_POINT |
629 |
|
|
TBC = -0.0575 _d 0*salt(I,J,kSurface,bi,bj) + 0.0901 _d 0 |
630 |
|
|
#endif /* SEAICE_VARIABLE_FREEZING_POINT */ |
631 |
|
|
IF ( theta(I,J,kSurface,bi,bj) .GE. TBC ) THEN |
632 |
gforget |
1.84 |
a_QbyOCN(i,j) = -SEAICE_availHeatFrac |
633 |
dimitri |
1.69 |
& * (theta(I,J,kSurface,bi,bj)-TBC) * dRf(kSurface) |
634 |
gforget |
1.77 |
& * hFacC(i,j,kSurface,bi,bj) * |
635 |
gforget |
1.83 |
& (HeatCapacity_Cp*rhoConst/QI) |
636 |
dimitri |
1.69 |
ELSE |
637 |
gforget |
1.84 |
a_QbyOCN(i,j) = -SEAICE_availHeatFracFrz |
638 |
dimitri |
1.69 |
& * (theta(I,J,kSurface,bi,bj)-TBC) * dRf(kSurface) |
639 |
gforget |
1.77 |
& * hFacC(i,j,kSurface,bi,bj) * |
640 |
gforget |
1.83 |
& (HeatCapacity_Cp*rhoConst/QI) |
641 |
dimitri |
1.69 |
ENDIF |
642 |
|
|
ELSE |
643 |
gforget |
1.84 |
a_QbyOCN(i,j) = 0. |
644 |
dimitri |
1.69 |
ENDIF |
645 |
gforget |
1.77 |
cgf heat and water conservation: ok -- since rid of 72.0764 factor |
646 |
gforget |
1.72 |
ENDDO |
647 |
|
|
ENDDO |
648 |
|
|
|
649 |
gforget |
1.96 |
#ifdef ALLOW_AUTODIFF_TAMC |
650 |
|
|
#ifdef SEAICE_SIMPLIFY_GROWTH_ADJ |
651 |
|
|
CALL ZERO_ADJ_1D( sNx*sNy, a_QbyOCN, myThid) |
652 |
|
|
#endif |
653 |
|
|
#endif |
654 |
gforget |
1.88 |
|
655 |
|
|
c =================================================================== |
656 |
|
|
c =========PART 3: determine effective thicknesses increments======== |
657 |
|
|
c =================================================================== |
658 |
|
|
|
659 |
|
|
|
660 |
|
|
|
661 |
gforget |
1.75 |
C compute ice thickness tendency due to ice-ocean interaction |
662 |
|
|
C =========================================================== |
663 |
|
|
|
664 |
gforget |
1.72 |
DO J=1,sNy |
665 |
|
|
DO I=1,sNx |
666 |
gforget |
1.85 |
d_HEFFbyOCNonICE(I,J)=MAX(a_QbyOCN(i,j), -HEFF(I,J,bi,bj)) |
667 |
gforget |
1.84 |
r_QbyOCN(I,J)=a_QbyOCN(I,J)-d_HEFFbyOCNonICE(I,J) |
668 |
|
|
HEFF(I,J,bi,bj)=HEFF(I,J,bi,bj) + d_HEFFbyOCNonICE(I,J) |
669 |
dimitri |
1.69 |
ENDDO |
670 |
|
|
ENDDO |
671 |
|
|
|
672 |
gforget |
1.96 |
#ifdef SEAICE_GROWTH_LEGACY |
673 |
dimitri |
1.69 |
#ifdef ALLOW_DIAGNOSTICS |
674 |
|
|
IF ( useDiagnostics ) THEN |
675 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIyneg ',myThid) ) THEN |
676 |
gforget |
1.84 |
CALL DIAGNOSTICS_FILL(d_HEFFbyOCNonICE, |
677 |
gforget |
1.71 |
& 'SIyneg ',0,1,1,bi,bj,myThid) |
678 |
dimitri |
1.69 |
ENDIF |
679 |
|
|
ENDIF |
680 |
|
|
#endif |
681 |
gforget |
1.96 |
#endif |
682 |
gforget |
1.75 |
|
683 |
gforget |
1.89 |
C compute snow melt tendency due to snow-atmosphere interaction |
684 |
gforget |
1.75 |
C ================================================================== |
685 |
|
|
|
686 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
687 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
688 |
|
|
CADJ & key = iicekey, byte = isbyte |
689 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
690 |
|
|
CADJ & key = iicekey, byte = isbyte |
691 |
gforget |
1.71 |
CADJ STORE a_QbyATM_cover(:,:) = comlev1_bibj, |
692 |
dimitri |
1.69 |
CADJ & key = iicekey, byte = isbyte |
693 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
694 |
gforget |
1.75 |
|
695 |
dimitri |
1.69 |
DO J=1,sNy |
696 |
|
|
DO I=1,sNx |
697 |
gforget |
1.89 |
IF ( a_QbyATM_cover(I,J).LT. 0. _d 0 ) THEN |
698 |
gforget |
1.85 |
tmpscal1= |
699 |
|
|
& MAX(r_QbyATM_cover(I,J)*ICE2SNOW, -HSNOW(I,J,bi,bj)) |
700 |
jmc |
1.91 |
ELSE |
701 |
gforget |
1.89 |
tmpscal1=0. _d 0 |
702 |
gforget |
1.73 |
ENDIF |
703 |
gforget |
1.89 |
d_HSNWbyATMonSNW(I,J)= tmpscal1 |
704 |
jmc |
1.91 |
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj) + tmpscal1 |
705 |
gforget |
1.89 |
r_QbyATM_cover(I,J)=r_QbyATM_cover(I,J) - tmpscal1/ICE2SNOW |
706 |
dimitri |
1.69 |
ENDDO |
707 |
|
|
ENDDO |
708 |
|
|
|
709 |
gforget |
1.89 |
C compute ice thickness tendency due to the atmosphere |
710 |
|
|
C ==================================================== |
711 |
gforget |
1.75 |
|
712 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
713 |
gforget |
1.89 |
CADJ STORE AREApreTH(:,:) = comlev1_bibj, |
714 |
dimitri |
1.69 |
CADJ & key = iicekey, byte = isbyte |
715 |
|
|
#endif |
716 |
gforget |
1.75 |
|
717 |
gforget |
1.82 |
cgf note: this block is not actually tested by lab_sea |
718 |
|
|
cgf where all experiments start in January. So even though |
719 |
|
|
cgf the v1.81=>v1.82 revision would change results in |
720 |
|
|
cgf warming conditions, the lab_sea results were not changed. |
721 |
|
|
|
722 |
dimitri |
1.69 |
DO J=1,sNy |
723 |
|
|
DO I=1,sNx |
724 |
gforget |
1.84 |
tmpscal2 = MAX(-HEFF(I,J,bi,bj),r_QbyATM_cover(I,J)) |
725 |
gforget |
1.89 |
d_HEFFbyATMonOCN(I,J)=d_HEFFbyATMonOCN(I,J)+tmpscal2 |
726 |
|
|
r_QbyATM_cover(I,J)=r_QbyATM_cover(I,J)-tmpscal2 |
727 |
|
|
c The following line is what I referred to as the 'vintage bug' |
728 |
jmc |
1.91 |
c If I mistook a desirable feature for a bug, then we will un-comment |
729 |
gforget |
1.89 |
c this line. Otherwise we may want to delete the comment at some point. |
730 |
gforget |
1.90 |
c & *AREApreTH(I,J) |
731 |
gforget |
1.89 |
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj) + tmpscal2 |
732 |
gforget |
1.74 |
ENDDO |
733 |
|
|
ENDDO |
734 |
dimitri |
1.69 |
|
735 |
gforget |
1.75 |
|
736 |
jmc |
1.91 |
C attribute precip to fresh water or snow stock, |
737 |
gforget |
1.75 |
C depending on atmospheric conditions. |
738 |
|
|
C ================================================= |
739 |
dimitri |
1.69 |
#ifdef ALLOW_ATM_TEMP |
740 |
gforget |
1.74 |
DO J=1,sNy |
741 |
|
|
DO I=1,sNx |
742 |
gforget |
1.89 |
c possible alternatives to the a_QbyATM_cover criterium |
743 |
|
|
c IF (TICE(I,J,bi,bj) .LT. TMIX) THEN |
744 |
|
|
c IF (atemp(I,J,bi,bj) .LT. celsius2K) THEN |
745 |
|
|
IF ( a_QbyATM_cover(I,J).GE. 0. _d 0 ) THEN |
746 |
gforget |
1.73 |
C add precip as snow |
747 |
gforget |
1.84 |
d_HFRWbyRAIN(I,J)=0. _d 0 |
748 |
|
|
d_HSNWbyRAIN(I,J)=convertPRECIP2HI*ICE2SNOW* |
749 |
gforget |
1.87 |
& PRECIP(I,J,bi,bj)*AREApreTH(I,J) |
750 |
jmc |
1.91 |
ELSE |
751 |
gforget |
1.73 |
c add precip to the fresh water bucket |
752 |
gforget |
1.84 |
d_HFRWbyRAIN(I,J)=-convertPRECIP2HI* |
753 |
gforget |
1.87 |
& PRECIP(I,J,bi,bj)*AREApreTH(I,J) |
754 |
gforget |
1.84 |
d_HSNWbyRAIN(I,J)=0. _d 0 |
755 |
dimitri |
1.69 |
ENDIF |
756 |
jmc |
1.91 |
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj) + d_HSNWbyRAIN(I,J) |
757 |
dimitri |
1.69 |
ENDDO |
758 |
|
|
ENDDO |
759 |
gforget |
1.89 |
cgf note: this does not affect air-sea heat flux, |
760 |
jmc |
1.91 |
cgf since the implied air heat gain to turn |
761 |
gforget |
1.89 |
cgf rain to snow is not a surface process. |
762 |
gforget |
1.74 |
#endif /* ALLOW_ATM_TEMP */ |
763 |
dimitri |
1.69 |
|
764 |
gforget |
1.75 |
|
765 |
gforget |
1.89 |
C compute snow melt due to heat available from ocean. |
766 |
gforget |
1.75 |
C ================================================================= |
767 |
dimitri |
1.69 |
|
768 |
gforget |
1.93 |
#ifdef ALLOW_AUTODIFF_TAMC |
769 |
|
|
CADJ STORE r_QbyOCN(:,:) = comlev1_bibj, |
770 |
|
|
CADJ & key = iicekey, byte = isbyte |
771 |
|
|
CADJ STORE HSNOW(:,:,bi,bj) = comlev1_bibj, |
772 |
|
|
CADJ & key = iicekey, byte = isbyte |
773 |
|
|
#endif |
774 |
gforget |
1.89 |
cgf do we need to keep this comment and cpp bracket? |
775 |
|
|
c |
776 |
dimitri |
1.69 |
cph( very sensitive bit here by JZ |
777 |
|
|
#ifndef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING |
778 |
|
|
DO J=1,sNy |
779 |
|
|
DO I=1,sNx |
780 |
gforget |
1.84 |
IF( r_QbyOCN(i,j) .LT. ZERO .AND. |
781 |
dimitri |
1.69 |
& HSNOW(I,J,bi,bj) .GT. ZERO ) THEN |
782 |
gforget |
1.85 |
tmpscal2= MAX(r_QbyOCN(i,j)*ICE2SNOW, -HSNOW(I,J,bi,bj)) |
783 |
gforget |
1.72 |
ELSE |
784 |
gforget |
1.81 |
tmpscal2= 0. _d 0 |
785 |
dimitri |
1.69 |
ENDIF |
786 |
gforget |
1.85 |
d_HSNWbyOCNonSNW(I,J) = tmpscal2 |
787 |
gforget |
1.84 |
r_QbyOCN(I,J)=r_QbyOCN(I,J) |
788 |
|
|
& -d_HSNWbyOCNonSNW(I,J)/ICE2SNOW |
789 |
gforget |
1.81 |
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)+d_HSNWbyOCNonSNW(I,J) |
790 |
dimitri |
1.69 |
ENDDO |
791 |
|
|
ENDDO |
792 |
gforget |
1.75 |
#endif /* SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING */ |
793 |
dimitri |
1.69 |
cph) |
794 |
|
|
|
795 |
gforget |
1.90 |
|
796 |
|
|
C gain of new ice over open water |
797 |
|
|
C =============================== |
798 |
|
|
#ifndef SEAICE_GROWTH_LEGACY |
799 |
|
|
#ifdef SEAICE_DO_OPEN_WATER_GROWTH |
800 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
801 |
|
|
CADJ STORE AREApreTH(:,:) = comlev1_bibj, |
802 |
|
|
CADJ & key = iicekey, byte = isbyte |
803 |
|
|
#endif |
804 |
|
|
DO J=1,sNy |
805 |
|
|
DO I=1,sNx |
806 |
|
|
if ( (r_QbyATM_open(I,J).GT.0. _d 0).AND. |
807 |
|
|
& (AREApreTH(I,J).GT.0. _d 0) ) then |
808 |
|
|
tmpscal1=r_QbyATM_open(I,J)+r_QbyOCN(i,j) |
809 |
jmc |
1.91 |
c at this point r_QbyOCN(i,j)<=0 and represents the heat |
810 |
gforget |
1.90 |
c that is still needed to get to the first layer to freezing point |
811 |
|
|
tmpscal2=SWFRACB*(a_QSWbyATM_cover(I,J) |
812 |
|
|
& +a_QSWbyATM_open(I,J)) |
813 |
jmc |
1.91 |
c SWFRACB*tmpscal2<=0 is the heat (out of qnet) that is not |
814 |
gforget |
1.90 |
c going to the first layer, which favors its freezing |
815 |
|
|
tmpscal3=MAX(0. _d 0, tmpscal1-tmpscal2) |
816 |
|
|
else |
817 |
|
|
tmpscal3=0. _d 0 |
818 |
|
|
endif |
819 |
|
|
d_HEFFbyATMonOCN_open(I,J)=tmpscal3 |
820 |
|
|
c The distinct d_HEFFbyATMonOCN_open array is only needed for d_AREA computation. |
821 |
jmc |
1.91 |
c For the rest it is treated as another contribution to d_HEFFbyATMonOCN. |
822 |
gforget |
1.90 |
d_HEFFbyATMonOCN(I,J)=d_HEFFbyATMonOCN(I,J)+tmpscal3 |
823 |
|
|
r_QbyATM_open(I,J)=r_QbyATM_open(I,J)-tmpscal3 |
824 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj) + tmpscal3 |
825 |
|
|
ENDDO |
826 |
|
|
ENDDO |
827 |
|
|
#endif /* SEAICE_DO_OPEN_WATER_GROWTH */ |
828 |
|
|
#endif /* SEAICE_GROWTH_LEGACY */ |
829 |
|
|
|
830 |
|
|
|
831 |
gforget |
1.87 |
C convert snow to ice if submerged. |
832 |
|
|
C ================================= |
833 |
|
|
|
834 |
gforget |
1.89 |
#ifndef SEAICE_GROWTH_LEGACY |
835 |
|
|
c note: in legacy, this process is done at the end |
836 |
gforget |
1.87 |
#ifdef ALLOW_SEAICE_FLOODING |
837 |
|
|
IF ( SEAICEuseFlooding ) THEN |
838 |
|
|
DO J=1,sNy |
839 |
|
|
DO I=1,sNx |
840 |
|
|
hDraft = (HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
841 |
|
|
& +HEFF(I,J,bi,bj)*SEAICE_rhoIce)/rhoConst |
842 |
|
|
tmpscal1 = MAX( 0. _d 0, hDraft - HEFF(I,J,bi,bj)) |
843 |
|
|
d_HEFFbyFLOODING(I,J)=tmpscal1 |
844 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj)+d_HEFFbyFLOODING(I,J) |
845 |
|
|
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)- |
846 |
jmc |
1.91 |
& d_HEFFbyFLOODING(I,J)*ICE2SNOW |
847 |
gforget |
1.87 |
ENDDO |
848 |
|
|
ENDDO |
849 |
|
|
ENDIF |
850 |
|
|
#endif /* ALLOW_SEAICE_FLOODING */ |
851 |
|
|
#endif /* SEAICE_GROWTH_LEGACY */ |
852 |
|
|
|
853 |
|
|
|
854 |
gforget |
1.75 |
|
855 |
gforget |
1.88 |
c =================================================================== |
856 |
|
|
c ==========PART 4: determine ice cover fraction increments=========- |
857 |
|
|
c =================================================================== |
858 |
|
|
|
859 |
|
|
|
860 |
gforget |
1.75 |
|
861 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
862 |
gforget |
1.88 |
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
863 |
|
|
CADJ & key = iicekey, byte = isbyte |
864 |
gforget |
1.90 |
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
865 |
|
|
CADJ & key = iicekey, byte = isbyte |
866 |
gforget |
1.88 |
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
867 |
|
|
CADJ & key = iicekey, byte = isbyte |
868 |
|
|
CADJ STORE r_QbyATM_cover(:,:) = comlev1_bibj, |
869 |
|
|
CADJ & key = iicekey, byte = isbyte |
870 |
gforget |
1.89 |
CADJ STORE r_QbyATM_open(:,:) = comlev1_bibj, |
871 |
|
|
CADJ & key = iicekey, byte = isbyte |
872 |
gforget |
1.88 |
CADJ STORE a_QbyATM_cover(:,:) = comlev1_bibj, |
873 |
|
|
CADJ & key = iicekey, byte = isbyte |
874 |
|
|
CADJ STORE a_QbyATM_open(:,:) = comlev1_bibj, |
875 |
|
|
CADJ & key = iicekey, byte = isbyte |
876 |
|
|
CADJ STORE a_QSWbyATM_cover(:,:) = comlev1_bibj, |
877 |
|
|
CADJ & key = iicekey, byte = isbyte |
878 |
|
|
CADJ STORE a_QSWbyATM_open(:,:) = comlev1_bibj, |
879 |
|
|
CADJ & key = iicekey, byte = isbyte |
880 |
dimitri |
1.69 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
881 |
|
|
|
882 |
|
|
DO J=1,sNy |
883 |
|
|
DO I=1,sNx |
884 |
gforget |
1.89 |
#ifndef SEAICE_GROWTH_LEGACY |
885 |
gforget |
1.90 |
c compute ice melt due to ATM (and OCN) heat stocks |
886 |
gforget |
1.89 |
c |
887 |
jmc |
1.91 |
# ifdef SEAICE_OCN_MELT_ACT_ON_AREA |
888 |
gforget |
1.90 |
c ice cover reduction by joint OCN+ATM melt |
889 |
jmc |
1.91 |
tmpscal3 = MIN( 0. _d 0 , |
890 |
|
|
& d_HEFFbyATMonOCN(I,J)+d_HEFFbyOCNonICE(I,J) ) |
891 |
gforget |
1.90 |
# else |
892 |
|
|
c ice cover reduction by ATM melt only -- as in legacy code |
893 |
jmc |
1.91 |
tmpscal3 = MIN( 0. _d 0 , d_HEFFbyATMonOCN(I,J) ) |
894 |
|
|
# endif |
895 |
gforget |
1.89 |
C gain of new ice over open water |
896 |
|
|
c |
897 |
gforget |
1.90 |
# ifdef SEAICE_DO_OPEN_WATER_GROWTH |
898 |
|
|
c the one effectively used to increment HEFF |
899 |
|
|
tmpscal4 = d_HEFFbyATMonOCN_open(I,J) |
900 |
|
|
# else |
901 |
|
|
c the virtual one -- as in legcy code |
902 |
|
|
tmpscal4 = MAX(ZERO,a_QbyATM_open(I,J)) |
903 |
|
|
# endif |
904 |
gforget |
1.89 |
#else |
905 |
gforget |
1.88 |
c compute heff after ice melt by ocn: |
906 |
|
|
tmpscal0=HEFF(I,J,bi,bj) |
907 |
|
|
& - d_HEFFbyATMonOCN(I,J) - d_HEFFbyFLOODING(I,J) |
908 |
|
|
c compute available heat left after snow melt by atm: |
909 |
|
|
tmpscal1= a_QbyATM_open(I,J)+a_QbyATM_cover(I,J) |
910 |
|
|
& - d_HSNWbyATMonSNW(I,J)/ICE2SNOW |
911 |
|
|
c (cannot melt more than all the ice) |
912 |
|
|
tmpscal2 = MAX(-tmpscal0,tmpscal1) |
913 |
|
|
tmpscal3 = MIN(ZERO,tmpscal2) |
914 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
915 |
|
|
DIAGarray(I,J) = tmpscal2 |
916 |
|
|
#endif |
917 |
gforget |
1.89 |
C gain of new ice over open water |
918 |
gforget |
1.88 |
tmpscal4 = MAX(ZERO,a_QbyATM_open(I,J)) |
919 |
gforget |
1.89 |
#endif /* SEAICE_GROWTH_LEGACY */ |
920 |
gforget |
1.88 |
c compute cover fraction tendency |
921 |
|
|
IF ( YC(I,J,bi,bj) .LT. ZERO ) THEN |
922 |
|
|
d_AREAbyATM(I,J)=tmpscal4/HO_south |
923 |
|
|
#ifndef SEAICE_GROWTH_LEGACY |
924 |
|
|
& +HALF*tmpscal3/heffActual(I,J) |
925 |
|
|
#else |
926 |
|
|
& +HALF*tmpscal3*AREApreTH(I,J) |
927 |
|
|
& /(tmpscal0+.00001 _d 0) |
928 |
|
|
#endif |
929 |
|
|
ELSE |
930 |
|
|
d_AREAbyATM(I,J)=tmpscal4/HO |
931 |
|
|
#ifndef SEAICE_GROWTH_LEGACY |
932 |
|
|
& +HALF*tmpscal3/heffActual(I,J) |
933 |
|
|
#else |
934 |
|
|
& +HALF*tmpscal3*AREApreTH(I,J) |
935 |
|
|
& /(tmpscal0+.00001 _d 0) |
936 |
dimitri |
1.69 |
#endif |
937 |
gforget |
1.88 |
ENDIF |
938 |
|
|
c apply tendency |
939 |
gforget |
1.90 |
IF ( (HEFF(i,j,bi,bj).GT.0. _d 0).OR. |
940 |
|
|
& (HSNOW(i,j,bi,bj).GT.0. _d 0) ) THEN |
941 |
jmc |
1.91 |
AREA(I,J,bi,bj)=max(0. _d 0 , min( 1. _d 0, |
942 |
gforget |
1.88 |
& AREA(I,J,bi,bj)+d_AREAbyATM(I,J) ) ) |
943 |
gforget |
1.90 |
ELSE |
944 |
|
|
AREA(I,J,bi,bj)=0. _d 0 |
945 |
|
|
ENDIF |
946 |
dimitri |
1.69 |
ENDDO |
947 |
|
|
ENDDO |
948 |
|
|
|
949 |
gforget |
1.96 |
#ifdef SEAICE_GROWTH_LEGACY |
950 |
dimitri |
1.69 |
#ifdef ALLOW_DIAGNOSTICS |
951 |
|
|
IF ( useDiagnostics ) THEN |
952 |
gforget |
1.88 |
IF ( DIAGNOSTICS_IS_ON('SIfice ',myThid) ) THEN |
953 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIfice ',0,1,3,bi,bj,myThid) |
954 |
dimitri |
1.69 |
ENDIF |
955 |
|
|
ENDIF |
956 |
|
|
#endif |
957 |
gforget |
1.96 |
#endif |
958 |
gforget |
1.75 |
|
959 |
dimitri |
1.69 |
|
960 |
gforget |
1.88 |
c =================================================================== |
961 |
|
|
c =============PART 5: determine ice salinity increments============= |
962 |
|
|
c =================================================================== |
963 |
|
|
|
964 |
|
|
|
965 |
|
|
#ifdef ALLOW_ATM_TEMP |
966 |
dimitri |
1.69 |
#ifdef SEAICE_SALINITY |
967 |
|
|
|
968 |
gforget |
1.87 |
#ifdef SEAICE_GROWTH_LEGACY |
969 |
gforget |
1.88 |
# ifdef ALLOW_AUTODIFF_TAMC |
970 |
|
|
CADJ STORE hsalt(:,:,bi,bj) = comlev1_bibj, |
971 |
|
|
CADJ & key = iicekey, byte = isbyte |
972 |
|
|
# endif /* ALLOW_AUTODIFF_TAMC */ |
973 |
dimitri |
1.69 |
DO J=1,sNy |
974 |
|
|
DO I=1,sNx |
975 |
|
|
C set HSALT = 0 if HSALT < 0 and compute salt to remove from ocean |
976 |
|
|
IF ( HSALT(I,J,bi,bj) .LT. 0.0 ) THEN |
977 |
|
|
saltFluxAdjust(I,J) = - HEFFM(I,J,bi,bj) * |
978 |
|
|
& HSALT(I,J,bi,bj) / SEAICE_deltaTtherm |
979 |
|
|
HSALT(I,J,bi,bj) = 0.0 _d 0 |
980 |
|
|
ENDIF |
981 |
|
|
ENDDO |
982 |
|
|
ENDDO |
983 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
984 |
dimitri |
1.69 |
|
985 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
986 |
|
|
CADJ STORE hsalt(:,:,bi,bj) = comlev1_bibj, |
987 |
|
|
CADJ & key = iicekey, byte = isbyte |
988 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
989 |
|
|
|
990 |
|
|
DO J=1,sNy |
991 |
|
|
DO I=1,sNx |
992 |
gforget |
1.87 |
c sum up the terms that affect the salt content of the ice pack |
993 |
gforget |
1.84 |
tmpscal1=d_HEFFbyOCNonICE(I,J)+d_HEFFbyATMonOCN(I,J) |
994 |
gforget |
1.87 |
c recompute HEFF before thermodyncamic updates (which is not AREApreTH in legacy code) |
995 |
|
|
tmpscal2=HEFF(I,J,bi,bj)-tmpscal1-d_HEFFbyFLOODING(I,J) |
996 |
gforget |
1.84 |
C tmpscal1 > 0 : m of sea ice that is created |
997 |
|
|
IF ( tmpscal1 .GE. 0.0 ) THEN |
998 |
dimitri |
1.69 |
saltFlux(I,J,bi,bj) = |
999 |
gforget |
1.87 |
& HEFFM(I,J,bi,bj)/SEAICE_deltaTtherm |
1000 |
|
|
& *SEAICE_salinity*salt(I,j,kSurface,bi,bj) |
1001 |
|
|
& *tmpscal1*ICE2WATR*rhoConstFresh |
1002 |
dimitri |
1.69 |
#ifdef ALLOW_SALT_PLUME |
1003 |
|
|
C saltPlumeFlux is defined only during freezing: |
1004 |
|
|
saltPlumeFlux(I,J,bi,bj)= |
1005 |
gforget |
1.87 |
& HEFFM(I,J,bi,bj)/SEAICE_deltaTtherm |
1006 |
|
|
& *(1-SEAICE_salinity)*salt(I,j,kSurface,bi,bj) |
1007 |
|
|
& *tmpscal1*ICE2WATR*rhoConstFresh |
1008 |
dimitri |
1.69 |
C if SaltPlumeSouthernOcean=.FALSE. turn off salt plume in Southern Ocean |
1009 |
|
|
IF ( .NOT. SaltPlumeSouthernOcean ) THEN |
1010 |
|
|
IF ( YC(I,J,bi,bj) .LT. 0.0 _d 0 ) |
1011 |
|
|
& saltPlumeFlux(i,j,bi,bj) = 0.0 _d 0 |
1012 |
|
|
ENDIF |
1013 |
|
|
|
1014 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
1015 |
gforget |
1.84 |
C tmpscal1 < 0 : m of sea ice that is melted |
1016 |
dimitri |
1.69 |
ELSE |
1017 |
|
|
saltFlux(I,J,bi,bj) = |
1018 |
gforget |
1.87 |
& HEFFM(I,J,bi,bj)/SEAICE_deltaTtherm |
1019 |
|
|
& *HSALT(I,J,bi,bj) |
1020 |
|
|
& *tmpscal1/tmpscal2 |
1021 |
dimitri |
1.69 |
#ifdef ALLOW_SALT_PLUME |
1022 |
|
|
saltPlumeFlux(i,j,bi,bj) = 0.0 _d 0 |
1023 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
1024 |
|
|
ENDIF |
1025 |
|
|
C update HSALT based on surface saltFlux |
1026 |
|
|
HSALT(I,J,bi,bj) = HSALT(I,J,bi,bj) + |
1027 |
|
|
& saltFlux(I,J,bi,bj) * SEAICE_deltaTtherm |
1028 |
|
|
saltFlux(I,J,bi,bj) = |
1029 |
|
|
& saltFlux(I,J,bi,bj) + saltFluxAdjust(I,J) |
1030 |
gforget |
1.87 |
#ifdef SEAICE_GROWTH_LEGACY |
1031 |
dimitri |
1.69 |
C set HSALT = 0 if HEFF = 0 and compute salt to dump into ocean |
1032 |
|
|
IF ( HEFF(I,J,bi,bj) .EQ. 0.0 ) THEN |
1033 |
|
|
saltFlux(I,J,bi,bj) = saltFlux(I,J,bi,bj) - |
1034 |
|
|
& HEFFM(I,J,bi,bj) * HSALT(I,J,bi,bj) / |
1035 |
|
|
& SEAICE_deltaTtherm |
1036 |
|
|
HSALT(I,J,bi,bj) = 0.0 _d 0 |
1037 |
|
|
#ifdef ALLOW_SALT_PLUME |
1038 |
|
|
saltPlumeFlux(i,j,bi,bj) = 0.0 _d 0 |
1039 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
1040 |
|
|
ENDIF |
1041 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
1042 |
dimitri |
1.69 |
ENDDO |
1043 |
|
|
ENDDO |
1044 |
|
|
#endif /* SEAICE_SALINITY */ |
1045 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
1046 |
|
|
|
1047 |
gforget |
1.75 |
|
1048 |
|
|
|
1049 |
gforget |
1.88 |
c ======================================================================= |
1050 |
|
|
c =====LEGACY PART 5.5: treat pathological cases, then do flooding ====== |
1051 |
|
|
c ======================================================================= |
1052 |
dimitri |
1.69 |
|
1053 |
|
|
|
1054 |
gforget |
1.72 |
|
1055 |
gforget |
1.87 |
#ifdef SEAICE_GROWTH_LEGACY |
1056 |
|
|
|
1057 |
jmc |
1.91 |
C treat values of ice cover fraction oustide |
1058 |
gforget |
1.75 |
C the [0 1] range, and other such issues. |
1059 |
|
|
C =========================================== |
1060 |
|
|
|
1061 |
gforget |
1.89 |
cgf note: this part cannot be heat and water conserving |
1062 |
gforget |
1.76 |
|
1063 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
1064 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
1065 |
|
|
CADJ & key = iicekey, byte = isbyte |
1066 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
1067 |
|
|
CADJ & key = iicekey, byte = isbyte |
1068 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
1069 |
|
|
DO J=1,sNy |
1070 |
|
|
DO I=1,sNx |
1071 |
|
|
C NOW SET AREA(I,J,bi,bj)=0 WHERE NO ICE IS |
1072 |
|
|
AREA(I,J,bi,bj)=MIN(AREA(I,J,bi,bj) |
1073 |
|
|
& ,HEFF(I,J,bi,bj)/.0001 _d 0) |
1074 |
|
|
ENDDO |
1075 |
|
|
ENDDO |
1076 |
gforget |
1.75 |
|
1077 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
1078 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
1079 |
|
|
CADJ & key = iicekey, byte = isbyte |
1080 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
1081 |
|
|
DO J=1,sNy |
1082 |
|
|
DO I=1,sNx |
1083 |
|
|
C NOW TRUNCATE AREA |
1084 |
|
|
AREA(I,J,bi,bj)=MIN(ONE,AREA(I,J,bi,bj)) |
1085 |
|
|
ENDDO |
1086 |
|
|
ENDDO |
1087 |
gforget |
1.75 |
|
1088 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
1089 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
1090 |
|
|
CADJ & key = iicekey, byte = isbyte |
1091 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
1092 |
|
|
CADJ & key = iicekey, byte = isbyte |
1093 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
1094 |
|
|
DO J=1,sNy |
1095 |
|
|
DO I=1,sNx |
1096 |
|
|
AREA(I,J,bi,bj) = MAX(ZERO,AREA(I,J,bi,bj)) |
1097 |
|
|
HSNOW(I,J,bi,bj) = MAX(ZERO,HSNOW(I,J,bi,bj)) |
1098 |
|
|
AREA(I,J,bi,bj) = AREA(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
1099 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
1100 |
|
|
#ifdef SEAICE_CAP_HEFF |
1101 |
|
|
HEFF(I,J,bi,bj)=MIN(MAX_HEFF,HEFF(I,J,bi,bj)) |
1102 |
|
|
#endif /* SEAICE_CAP_HEFF */ |
1103 |
|
|
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
1104 |
|
|
ENDDO |
1105 |
|
|
ENDDO |
1106 |
|
|
|
1107 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1108 |
|
|
IF ( useDiagnostics ) THEN |
1109 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIthdgrh',myThid) ) THEN |
1110 |
|
|
DO J=1,sNy |
1111 |
|
|
DO I=1,sNx |
1112 |
gforget |
1.87 |
tmparr1(I,J) = (HEFF(I,J,bi,bj)-HEFFpreTH(I,J)) |
1113 |
dimitri |
1.69 |
& /SEAICE_deltaTtherm |
1114 |
|
|
ENDDO |
1115 |
|
|
ENDDO |
1116 |
gforget |
1.73 |
CALL DIAGNOSTICS_FILL(tmparr1,'SIthdgrh',0,1,3,bi,bj,myThid) |
1117 |
dimitri |
1.69 |
ENDIF |
1118 |
|
|
ENDIF |
1119 |
|
|
#endif /* ALLOW_DIAGNOSTICS */ |
1120 |
|
|
|
1121 |
gforget |
1.75 |
|
1122 |
|
|
C convert snow to ice if submerged. |
1123 |
|
|
C ================================= |
1124 |
|
|
|
1125 |
dimitri |
1.69 |
#ifdef ALLOW_SEAICE_FLOODING |
1126 |
|
|
IF ( SEAICEuseFlooding ) THEN |
1127 |
|
|
DO J=1,sNy |
1128 |
|
|
DO I=1,sNx |
1129 |
|
|
hDraft = (HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
1130 |
gforget |
1.85 |
& +HEFF(I,J,bi,bj)*SEAICE_rhoIce)/rhoConst |
1131 |
jmc |
1.86 |
tmpscal1 = MAX( 0. _d 0, hDraft - HEFF(I,J,bi,bj)) |
1132 |
gforget |
1.84 |
d_HEFFbyFLOODING(I,J)=tmpscal1 |
1133 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj)+d_HEFFbyFLOODING(I,J) |
1134 |
|
|
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)- |
1135 |
jmc |
1.91 |
& d_HEFFbyFLOODING(I,J)*ICE2SNOW |
1136 |
dimitri |
1.69 |
ENDDO |
1137 |
|
|
ENDDO |
1138 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1139 |
|
|
IF ( useDiagnostics ) THEN |
1140 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIsnwice',myThid) ) THEN |
1141 |
|
|
DO J=1,sNy |
1142 |
|
|
DO I=1,sNx |
1143 |
gforget |
1.84 |
tmparr1(I,J) = d_HEFFbyFLOODING(I,J)/SEAICE_deltaTtherm |
1144 |
dimitri |
1.69 |
ENDDO |
1145 |
|
|
ENDDO |
1146 |
gforget |
1.73 |
CALL DIAGNOSTICS_FILL(tmparr1,'SIsnwice',0,1,3,bi,bj,myThid) |
1147 |
dimitri |
1.69 |
ENDIF |
1148 |
|
|
ENDIF |
1149 |
|
|
#endif /* ALLOW_DIAGNOSTICS */ |
1150 |
|
|
ENDIF |
1151 |
|
|
#endif /* ALLOW_SEAICE_FLOODING */ |
1152 |
|
|
|
1153 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
1154 |
gforget |
1.75 |
|
1155 |
|
|
|
1156 |
gforget |
1.88 |
|
1157 |
|
|
c =================================================================== |
1158 |
|
|
c ===============PART 6: determine ice age increments================ |
1159 |
|
|
c =================================================================== |
1160 |
dimitri |
1.69 |
|
1161 |
gforget |
1.75 |
|
1162 |
|
|
|
1163 |
dimitri |
1.69 |
#ifdef SEAICE_AGE |
1164 |
|
|
# ifndef SEAICE_AGE_VOL |
1165 |
|
|
C Sources and sinks for sea ice age: |
1166 |
|
|
C assume that a) freezing: new ice fraction forms with zero age |
1167 |
|
|
C b) melting: ice fraction vanishes with current age |
1168 |
|
|
DO J=1,sNy |
1169 |
|
|
DO I=1,sNx |
1170 |
|
|
IF ( AREA(I,J,bi,bj) .GT. 0.15 ) THEN |
1171 |
gforget |
1.87 |
IF ( AREA(i,j,bi,bj) .LT. AREApreTH(i,j) ) THEN |
1172 |
dimitri |
1.69 |
C-- scale effective ice-age to account for ice-age sink associated with melting |
1173 |
|
|
IceAge(i,j,bi,bj) = IceAge(i,j,bi,bj) |
1174 |
gforget |
1.87 |
& *AREA(i,j,bi,bj)/AREApreTH(i,j) |
1175 |
dimitri |
1.69 |
ENDIF |
1176 |
|
|
C-- account for aging: |
1177 |
|
|
IceAge(i,j,bi,bj) = IceAge(i,j,bi,bj) |
1178 |
|
|
& + AREA(i,j,bi,bj) * SEAICE_deltaTtherm |
1179 |
|
|
ELSE |
1180 |
|
|
IceAge(i,j,bi,bj) = ZERO |
1181 |
|
|
ENDIF |
1182 |
|
|
ENDDO |
1183 |
|
|
ENDDO |
1184 |
|
|
# else /* ifdef SEAICE_AGE_VOL */ |
1185 |
|
|
C Sources and sinks for sea ice age: |
1186 |
|
|
C assume that a) freezing: new ice volume forms with zero age |
1187 |
|
|
C b) melting: ice volume vanishes with current age |
1188 |
|
|
DO J=1,sNy |
1189 |
|
|
DO I=1,sNx |
1190 |
|
|
C-- compute actual age from effective age: |
1191 |
gforget |
1.87 |
IF (AREApreTH(i,j).GT.0. _d 0) THEN |
1192 |
|
|
tmpscal1=IceAge(i,j,bi,bj)/AREApreTH(i,j) |
1193 |
dimitri |
1.69 |
ELSE |
1194 |
gforget |
1.87 |
tmpscal1=0. _d 0 |
1195 |
jmc |
1.91 |
ENDIF |
1196 |
gforget |
1.87 |
IF ( (HEFFpreTH(i,j).LT.HEFF(i,j,bi,bj)).AND. |
1197 |
dimitri |
1.69 |
& (AREA(i,j,bi,bj).GT.0.15) ) THEN |
1198 |
gforget |
1.87 |
tmpscal2=tmpscal1*HEFFpreTH(i,j)/ |
1199 |
dimitri |
1.69 |
& HEFF(i,j,bi,bj)+SEAICE_deltaTtherm |
1200 |
|
|
ELSEIF (AREA(i,j,bi,bj).LE.0.15) THEN |
1201 |
gforget |
1.87 |
tmpscal2=0. _d 0 |
1202 |
dimitri |
1.69 |
ELSE |
1203 |
gforget |
1.87 |
tmpscal2=tmpscal1+SEAICE_deltaTtherm |
1204 |
dimitri |
1.69 |
ENDIF |
1205 |
|
|
C-- re-scale to effective age: |
1206 |
gforget |
1.87 |
IceAge(i,j,bi,bj) = tmpscal2*AREA(i,j,bi,bj) |
1207 |
dimitri |
1.69 |
ENDDO |
1208 |
|
|
ENDDO |
1209 |
|
|
# endif /* SEAICE_AGE_VOL */ |
1210 |
|
|
#endif /* SEAICE_AGE */ |
1211 |
|
|
|
1212 |
gforget |
1.88 |
|
1213 |
|
|
|
1214 |
|
|
c =================================================================== |
1215 |
|
|
c ==============PART 7: determine ocean model forcing================ |
1216 |
|
|
c =================================================================== |
1217 |
|
|
|
1218 |
|
|
|
1219 |
|
|
|
1220 |
jmc |
1.91 |
C compute net heat flux leaving/entering the ocean, |
1221 |
gforget |
1.88 |
C accounting for the part used in melt/freeze processes |
1222 |
|
|
C ===================================================== |
1223 |
|
|
|
1224 |
|
|
DO J=1,sNy |
1225 |
|
|
DO I=1,sNx |
1226 |
gforget |
1.89 |
QNET(I,J,bi,bj) = r_QbyATM_cover(I,J) + r_QbyATM_open(I,J) |
1227 |
jmc |
1.91 |
& - ( d_HEFFbyOCNonICE(I,J) + |
1228 |
gforget |
1.88 |
& d_HSNWbyOCNonSNW(I,J)/ICE2SNOW + |
1229 |
jmc |
1.91 |
& d_HEFFbyNEG(I,J) + |
1230 |
gforget |
1.88 |
& d_HSNWbyNEG(I,J)/ICE2SNOW ) |
1231 |
|
|
& * maskC(I,J,kSurface,bi,bj) |
1232 |
|
|
QSW(I,J,bi,bj) = a_QSWbyATM_cover(I,J) + a_QSWbyATM_open(I,J) |
1233 |
|
|
ENDDO |
1234 |
|
|
ENDDO |
1235 |
|
|
|
1236 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1237 |
|
|
IF ( useDiagnostics ) THEN |
1238 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIqneto ',myThid) ) THEN |
1239 |
|
|
DO J=1,sNy |
1240 |
|
|
DO I=1,sNx |
1241 |
gforget |
1.96 |
DIAGarray(I,J) = r_QbyATM_open(I,J) * convertHI2Q |
1242 |
gforget |
1.88 |
ENDDO |
1243 |
|
|
ENDDO |
1244 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIqneto ',0,1,3,bi,bj,myThid) |
1245 |
|
|
ENDIF |
1246 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIqneti ',myThid) ) THEN |
1247 |
|
|
DO J=1,sNy |
1248 |
|
|
DO I=1,sNx |
1249 |
gforget |
1.96 |
DIAGarray(I,J) = r_QbyATM_cover(I,J) * convertHI2Q |
1250 |
gforget |
1.88 |
ENDDO |
1251 |
|
|
ENDDO |
1252 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIqneti ',0,1,3,bi,bj,myThid) |
1253 |
|
|
ENDIF |
1254 |
|
|
ENDIF |
1255 |
|
|
#endif |
1256 |
|
|
|
1257 |
gforget |
1.83 |
c switch heat fluxes from 'effective' ice meters to W/m2 |
1258 |
gforget |
1.88 |
C ====================================================== |
1259 |
gforget |
1.83 |
|
1260 |
|
|
DO J=1,sNy |
1261 |
|
|
DO I=1,sNx |
1262 |
|
|
QNET(I,J,bi,bj) = QNET(I,J,bi,bj)*convertHI2Q |
1263 |
|
|
QSW(I,J,bi,bj) = QSW(I,J,bi,bj)*convertHI2Q |
1264 |
|
|
ENDDO |
1265 |
|
|
ENDDO |
1266 |
jmc |
1.91 |
|
1267 |
|
|
C compute net fresh water flux leaving/entering |
1268 |
gforget |
1.88 |
C the ocean, accounting for fresh/salt water stocks. |
1269 |
|
|
C ================================================== |
1270 |
|
|
|
1271 |
|
|
#ifdef ALLOW_ATM_TEMP |
1272 |
|
|
DO J=1,sNy |
1273 |
|
|
DO I=1,sNx |
1274 |
|
|
tmpscal1= d_HSNWbyATMonSNW(I,J)/ICE2SNOW |
1275 |
|
|
& +d_HFRWbyRAIN(I,J) |
1276 |
|
|
& +d_HSNWbyOCNonSNW(I,J)/ICE2SNOW |
1277 |
|
|
& +d_HEFFbyOCNonICE(I,J) |
1278 |
|
|
& +d_HEFFbyATMonOCN(I,J) |
1279 |
jmc |
1.91 |
& +d_HEFFbyNEG(I,J) |
1280 |
gforget |
1.88 |
& +d_HSNWbyNEG(I,J)/ICE2SNOW |
1281 |
|
|
EmPmR(I,J,bi,bj) = maskC(I,J,kSurface,bi,bj)*( |
1282 |
|
|
& ( EVAP(I,J,bi,bj)-PRECIP(I,J,bi,bj) ) |
1283 |
|
|
& * ( ONE - AREApreTH(I,J) ) |
1284 |
|
|
#ifdef ALLOW_RUNOFF |
1285 |
|
|
& - RUNOFF(I,J,bi,bj) |
1286 |
|
|
#endif |
1287 |
|
|
& + tmpscal1*convertHI2PRECIP |
1288 |
|
|
& )*rhoConstFresh |
1289 |
|
|
ENDDO |
1290 |
|
|
ENDDO |
1291 |
|
|
|
1292 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1293 |
|
|
IF ( useDiagnostics ) THEN |
1294 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIatmFW ',myThid) ) THEN |
1295 |
|
|
DO J=1,sNy |
1296 |
|
|
DO I=1,sNx |
1297 |
|
|
DIAGarray(I,J) = maskC(I,J,kSurface,bi,bj)*( |
1298 |
|
|
& PRECIP(I,J,bi,bj) |
1299 |
|
|
& - EVAP(I,J,bi,bj) |
1300 |
|
|
& *( ONE - AREApreTH(I,J) ) |
1301 |
|
|
& + RUNOFF(I,J,bi,bj) |
1302 |
|
|
& )*rhoConstFresh |
1303 |
|
|
ENDDO |
1304 |
|
|
ENDDO |
1305 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIatmFW ',0,1,3,bi,bj,myThid) |
1306 |
|
|
ENDIF |
1307 |
|
|
ENDIF |
1308 |
|
|
#endif |
1309 |
|
|
#ifdef ALLOW_MEAN_SFLUX_COST_CONTRIBUTION |
1310 |
|
|
DO J=1,sNy |
1311 |
|
|
DO I=1,sNx |
1312 |
|
|
frWtrAtm(I,J,bi,bj) = maskC(I,J,kSurface,bi,bj)*( |
1313 |
|
|
& PRECIP(I,J,bi,bj) |
1314 |
|
|
& - EVAP(I,J,bi,bj) |
1315 |
|
|
& *( ONE - AREApreTH(I,J) ) |
1316 |
|
|
& + RUNOFF(I,J,bi,bj) |
1317 |
|
|
& )*rhoConstFresh |
1318 |
|
|
ENDDO |
1319 |
|
|
ENDDO |
1320 |
|
|
#endif |
1321 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
1322 |
|
|
|
1323 |
gforget |
1.96 |
#ifdef SEAICE_DEBUG |
1324 |
|
|
CALL PLOT_FIELD_XYRL( QSW,'Current QSW ', myIter, myThid ) |
1325 |
|
|
CALL PLOT_FIELD_XYRL( QNET,'Current QNET ', myIter, myThid ) |
1326 |
|
|
CALL PLOT_FIELD_XYRL( EmPmR,'Current EmPmR ', myIter, myThid ) |
1327 |
|
|
#endif /* SEAICE_DEBUG */ |
1328 |
gforget |
1.88 |
|
1329 |
|
|
C Sea Ice Load on the sea surface. |
1330 |
|
|
C ================================= |
1331 |
|
|
|
1332 |
|
|
IF ( useRealFreshWaterFlux ) THEN |
1333 |
|
|
DO J=1,sNy |
1334 |
|
|
DO I=1,sNx |
1335 |
gforget |
1.92 |
#ifdef SEAICE_CAP_ICELOAD |
1336 |
|
|
tmpscal1 = HEFF(I,J,bi,bj)*SEAICE_rhoIce |
1337 |
|
|
& + HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
1338 |
jmc |
1.94 |
tmpscal2 = min(tmpscal1,heffTooHeavy*rhoConst) |
1339 |
|
|
#else |
1340 |
gforget |
1.92 |
tmpscal2 = HEFF(I,J,bi,bj)*SEAICE_rhoIce |
1341 |
|
|
& + HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
1342 |
|
|
#endif |
1343 |
|
|
sIceLoad(i,j,bi,bj) = tmpscal2 |
1344 |
gforget |
1.88 |
ENDDO |
1345 |
|
|
ENDDO |
1346 |
|
|
ENDIF |
1347 |
|
|
|
1348 |
|
|
|
1349 |
|
|
C close bi,bj loops |
1350 |
dimitri |
1.69 |
ENDDO |
1351 |
|
|
ENDDO |
1352 |
|
|
|
1353 |
|
|
RETURN |
1354 |
|
|
END |