1 |
mlosch |
1.101 |
C $Header: /u/gcmpack/MITgcm/pkg/seaice/seaice_growth.F,v 1.100 2010/11/19 14:32:11 mlosch Exp $ |
2 |
jmc |
1.91 |
C $Name: $ |
3 |
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4 |
dimitri |
1.69 |
#include "SEAICE_OPTIONS.h" |
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6 |
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CBOP |
7 |
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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. |
54 |
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 |
73 |
mlosch |
1.97 |
c of the grid cell, whereas '_open' 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 |
80 |
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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mlosch |
1.101 |
_RL QI, QS |
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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) |
96 |
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 |
98 |
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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) |
101 |
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 |
103 |
jmc |
1.91 |
C r_QbyOCN :: residual of a_QbyOCN after freezing/melting |
104 |
gforget |
1.75 |
C processes have been accounted for |
105 |
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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108 |
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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 |
112 |
gforget |
1.75 |
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c ICE/SNOW stocks tendencies associated with the various melt/freeze processes |
114 |
gforget |
1.76 |
_RL d_AREAbyATM (1:sNx,1:sNy) |
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gforget |
1.71 |
c |
116 |
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) |
119 |
gforget |
1.84 |
_RL d_HEFFbyFLOODING (1:sNx,1:sNy) |
120 |
mlosch |
1.100 |
#ifdef SEAICE_CAP_HEFF |
121 |
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_RL d_HEFFbyCAPPING (1:sNx,1:sNy) |
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#endif /* SEAICE_CAP_HEFF */ |
123 |
gforget |
1.73 |
c |
124 |
gforget |
1.90 |
_RL d_HEFFbyATMonOCN_open(1:sNx,1:sNy) |
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c |
126 |
gforget |
1.87 |
_RL d_HSNWbyNEG (1:sNx,1:sNy) |
127 |
gforget |
1.84 |
_RL d_HSNWbyATMonSNW (1:sNx,1:sNy) |
128 |
gforget |
1.75 |
_RL d_HSNWbyOCNonSNW (1:sNx,1:sNy) |
129 |
gforget |
1.84 |
_RL d_HSNWbyRAIN (1:sNx,1:sNy) |
130 |
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c |
131 |
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_RL d_HFRWbyRAIN (1:sNx,1:sNy) |
132 |
gforget |
1.71 |
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133 |
dimitri |
1.69 |
C actual ice thickness with upper and lower limit |
134 |
gforget |
1.83 |
_RL heffActual (1:sNx,1:sNy) |
135 |
dimitri |
1.69 |
C actual snow thickness |
136 |
gforget |
1.83 |
_RL hsnowActual (1:sNx,1:sNy) |
137 |
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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143 |
dimitri |
1.69 |
C wind speed |
144 |
gforget |
1.76 |
_RL UG (1:sNx,1:sNy) |
145 |
dimitri |
1.69 |
_RL SPEED_SQ |
146 |
gforget |
1.96 |
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147 |
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C pathological cases thresholds |
148 |
gforget |
1.92 |
_RL heffTooThin, heffTooHeavy |
149 |
dimitri |
1.69 |
|
150 |
gforget |
1.75 |
c temporary variables available for the various computations |
151 |
gforget |
1.88 |
_RL tmpscal0, tmpscal1, tmpscal2, tmpscal3, tmpscal4 |
152 |
gforget |
1.76 |
_RL tmparr1 (1:sNx,1:sNy) |
153 |
gforget |
1.75 |
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154 |
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155 |
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#ifdef ALLOW_SEAICE_FLOODING |
156 |
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_RL hDraft |
157 |
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#endif /* ALLOW_SEAICE_FLOODING */ |
158 |
jmc |
1.91 |
|
159 |
gforget |
1.75 |
#ifdef SEAICE_SALINITY |
160 |
gforget |
1.83 |
_RL saltFluxAdjust (1:sNx,1:sNy) |
161 |
gforget |
1.75 |
#endif |
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mlosch |
1.98 |
INTEGER nDim |
164 |
dimitri |
1.69 |
#ifdef SEAICE_MULTICATEGORY |
165 |
mlosch |
1.98 |
INTEGER ilockey |
166 |
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PARAMETER ( nDim = MULTDIM ) |
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#else |
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PARAMETER ( nDim = 1 ) |
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#endif /* SEAICE_MULTICATEGORY */ |
170 |
dimitri |
1.69 |
INTEGER it |
171 |
mlosch |
1.98 |
_RL pFac |
172 |
gforget |
1.83 |
_RL heffActualP (1:sNx,1:sNy) |
173 |
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_RL a_QbyATMmult_cover (1:sNx,1:sNy) |
174 |
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_RL a_QSWbyATMmult_cover(1:sNx,1:sNy) |
175 |
dimitri |
1.69 |
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176 |
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#ifdef ALLOW_DIAGNOSTICS |
177 |
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_RL DIAGarray (1:sNx,1:sNy) |
178 |
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LOGICAL DIAGNOSTICS_IS_ON |
179 |
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EXTERNAL DIAGNOSTICS_IS_ON |
180 |
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#endif |
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gforget |
1.88 |
c =================================================================== |
183 |
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c =================PART 0: constants and initializations============= |
184 |
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c =================================================================== |
185 |
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186 |
dimitri |
1.69 |
IF ( buoyancyRelation .EQ. 'OCEANICP' ) THEN |
187 |
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kSurface = Nr |
188 |
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ELSE |
189 |
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kSurface = 1 |
190 |
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ENDIF |
191 |
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192 |
gforget |
1.92 |
c Cutoff for very thin ice |
193 |
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heffTooThin=1. _d -5 |
194 |
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c Cutoff for iceload |
195 |
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heffTooHeavy=dRf(kSurface) / 5. _d 0 |
196 |
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197 |
dimitri |
1.69 |
C FREEZING TEMP. OF SEA WATER (deg C) |
198 |
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TBC = SEAICE_freeze |
199 |
gforget |
1.80 |
|
200 |
dimitri |
1.69 |
C RATIO OF SEA ICE DENSITY to SNOW DENSITY |
201 |
gforget |
1.80 |
ICE2SNOW = SEAICE_rhoIce/SEAICE_rhoSnow |
202 |
gforget |
1.85 |
|
203 |
dimitri |
1.69 |
C HEAT OF FUSION OF ICE (J/m^3) |
204 |
mlosch |
1.101 |
QI = SEAICE_rhoIce*SEAICE_lhFusion |
205 |
dimitri |
1.69 |
C HEAT OF FUSION OF SNOW (J/m^3) |
206 |
mlosch |
1.101 |
QS = SEAICE_rhoSnow*SEAICE_lhFusion |
207 |
gforget |
1.85 |
C |
208 |
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C note that QI/QS=ICE2SNOW -- except it wasnt in old code |
209 |
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210 |
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211 |
dimitri |
1.69 |
|
212 |
gforget |
1.76 |
c conversion factors to go from Q (W/m2) to HEFF (ice meters) |
213 |
gforget |
1.84 |
convertQ2HI=SEAICE_deltaTtherm/QI |
214 |
gforget |
1.76 |
convertHI2Q=1/convertQ2HI |
215 |
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c conversion factors to go from precip (m/s) unit to HEFF (ice meters) |
216 |
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convertPRECIP2HI=SEAICE_deltaTtherm*rhoConstFresh/SEAICE_rhoIce |
217 |
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convertHI2PRECIP=1./convertPRECIP2HI |
218 |
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219 |
dimitri |
1.69 |
DO bj=myByLo(myThid),myByHi(myThid) |
220 |
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DO bi=myBxLo(myThid),myBxHi(myThid) |
221 |
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c |
222 |
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#ifdef ALLOW_AUTODIFF_TAMC |
223 |
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act1 = bi - myBxLo(myThid) |
224 |
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max1 = myBxHi(myThid) - myBxLo(myThid) + 1 |
225 |
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act2 = bj - myByLo(myThid) |
226 |
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max2 = myByHi(myThid) - myByLo(myThid) + 1 |
227 |
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act3 = myThid - 1 |
228 |
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max3 = nTx*nTy |
229 |
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act4 = ikey_dynamics - 1 |
230 |
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iicekey = (act1 + 1) + act2*max1 |
231 |
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& + act3*max1*max2 |
232 |
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& + act4*max1*max2*max3 |
233 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
234 |
gforget |
1.75 |
|
235 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
236 |
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CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
237 |
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CADJ & key = iicekey, byte = isbyte |
238 |
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CADJ STORE qnet(:,:,bi,bj) = comlev1_bibj, |
239 |
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CADJ & key = iicekey, byte = isbyte |
240 |
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CADJ STORE qsw(:,:,bi,bj) = comlev1_bibj, |
241 |
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CADJ & key = iicekey, byte = isbyte |
242 |
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#endif /* ALLOW_AUTODIFF_TAMC */ |
243 |
gforget |
1.75 |
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244 |
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245 |
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C array initializations |
246 |
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C ===================== |
247 |
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248 |
dimitri |
1.69 |
DO J=1,sNy |
249 |
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DO I=1,sNx |
250 |
gforget |
1.90 |
a_QbyATM_cover (I,J) = 0.0 _d 0 |
251 |
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a_QbyATM_open(I,J) = 0.0 _d 0 |
252 |
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r_QbyATM_cover (I,J) = 0.0 _d 0 |
253 |
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r_QbyATM_open (I,J) = 0.0 _d 0 |
254 |
gforget |
1.75 |
c |
255 |
gforget |
1.71 |
a_QSWbyATM_open (I,J) = 0.0 _d 0 |
256 |
gforget |
1.90 |
a_QSWbyATM_cover (I,J) = 0.0 _d 0 |
257 |
gforget |
1.75 |
c |
258 |
gforget |
1.90 |
a_QbyOCN (I,J) = 0.0 _d 0 |
259 |
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r_QbyOCN (I,J) = 0.0 _d 0 |
260 |
gforget |
1.75 |
c |
261 |
gforget |
1.90 |
d_AREAbyATM(I,J) = 0.0 _d 0 |
262 |
gforget |
1.75 |
c |
263 |
gforget |
1.84 |
d_HEFFbyOCNonICE(I,J) = 0.0 _d 0 |
264 |
gforget |
1.75 |
d_HEFFbyATMonOCN(I,J) = 0.0 _d 0 |
265 |
gforget |
1.84 |
d_HEFFbyFLOODING(I,J) = 0.0 _d 0 |
266 |
mlosch |
1.100 |
#ifdef SEAICE_CAP_HEFF |
267 |
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d_HEFFbyCAPPING(I,J) = 0.0 _d 0 |
268 |
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#endif /* SEAICE_CAP_HEFF */ |
269 |
gforget |
1.75 |
c |
270 |
gforget |
1.90 |
d_HEFFbyATMonOCN_open(I,J) = 0.0 _d 0 |
271 |
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c |
272 |
gforget |
1.84 |
d_HSNWbyATMonSNW(I,J) = 0.0 _d 0 |
273 |
gforget |
1.75 |
d_HSNWbyOCNonSNW(I,J) = 0.0 _d 0 |
274 |
gforget |
1.90 |
d_HSNWbyRAIN(I,J) = 0.0 _d 0 |
275 |
gforget |
1.84 |
c |
276 |
gforget |
1.90 |
d_HFRWbyRAIN(I,J) = 0.0 _d 0 |
277 |
gforget |
1.75 |
c |
278 |
gforget |
1.90 |
tmparr1(I,J) = 0.0 _d 0 |
279 |
gforget |
1.75 |
c |
280 |
dimitri |
1.69 |
#ifdef SEAICE_SALINITY |
281 |
gforget |
1.90 |
saltFluxAdjust(I,J) = 0.0 _d 0 |
282 |
dimitri |
1.69 |
#endif |
283 |
gforget |
1.90 |
a_QbyATMmult_cover(I,J) = 0.0 _d 0 |
284 |
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a_QSWbyATMmult_cover(I,J) = 0.0 _d 0 |
285 |
dimitri |
1.69 |
ENDDO |
286 |
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ENDDO |
287 |
gforget |
1.84 |
#ifdef ALLOW_MEAN_SFLUX_COST_CONTRIBUTION |
288 |
dimitri |
1.69 |
DO J=1-oLy,sNy+oLy |
289 |
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DO I=1-oLx,sNx+oLx |
290 |
gforget |
1.90 |
frWtrAtm(I,J,bi,bj) = 0.0 _d 0 |
291 |
dimitri |
1.69 |
ENDDO |
292 |
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ENDDO |
293 |
gforget |
1.84 |
#endif |
294 |
dimitri |
1.69 |
|
295 |
gforget |
1.87 |
|
296 |
gforget |
1.88 |
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297 |
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c ===================================================================== |
298 |
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c ===========PART 1: treat pathological cases (post advdiff)=========== |
299 |
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c ===================================================================== |
300 |
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301 |
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302 |
gforget |
1.87 |
|
303 |
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#ifndef SEAICE_GROWTH_LEGACY |
304 |
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305 |
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c 1) treat the case of negative values: |
306 |
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c |
307 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
308 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
309 |
|
|
CADJ & key = iicekey, byte = isbyte |
310 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
311 |
|
|
CADJ & key = iicekey, byte = isbyte |
312 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
313 |
|
|
CADJ & key = iicekey, byte = isbyte |
314 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
315 |
|
|
DO J=1,sNy |
316 |
|
|
DO I=1,sNx |
317 |
gforget |
1.89 |
d_HEFFbyNEG(I,J)=MAX(-HEFF(I,J,bi,bj),0. _d 0) |
318 |
gforget |
1.87 |
HEFF(I,J,bi,bj)=HEFF(I,J,bi,bj)+d_HEFFbyNEG(I,J) |
319 |
gforget |
1.89 |
d_HSNWbyNEG(I,J)=MAX(-HSNOW(I,J,bi,bj),0. _d 0) |
320 |
gforget |
1.87 |
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)+d_HSNWbyNEG(I,J) |
321 |
|
|
AREA(I,J,bi,bj)=MAX(AREA(I,J,bi,bj),0. _d 0) |
322 |
|
|
ENDDO |
323 |
|
|
ENDDO |
324 |
|
|
|
325 |
gforget |
1.92 |
c 1.25) treat the case of very thin ice: |
326 |
|
|
c |
327 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
328 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
329 |
|
|
CADJ & key = iicekey, byte = isbyte |
330 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
331 |
|
|
CADJ & key = iicekey, byte = isbyte |
332 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
333 |
|
|
CADJ & key = iicekey, byte = isbyte |
334 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
335 |
|
|
DO J=1,sNy |
336 |
|
|
DO I=1,sNx |
337 |
|
|
if (HEFF(I,J,bi,bj).LE.heffTooThin) then |
338 |
|
|
tmpscal2=-HEFF(I,J,bi,bj) |
339 |
|
|
tmpscal3=-HSNOW(I,J,bi,bj) |
340 |
gforget |
1.96 |
TICE(I,J,bi,bj)=celsius2K |
341 |
gforget |
1.92 |
else |
342 |
|
|
tmpscal2=0. _d 0 |
343 |
|
|
tmpscal3=0. _d 0 |
344 |
|
|
endif |
345 |
|
|
HEFF(I,J,bi,bj)=HEFF(I,J,bi,bj)+tmpscal2 |
346 |
|
|
d_HEFFbyNEG(I,J)=d_HEFFbyNEG(I,J)+tmpscal2 |
347 |
|
|
HSNOW(I,J,bi,bj)=HSNOW(I,J,bi,bj)+tmpscal3 |
348 |
|
|
d_HSNWbyNEG(I,J)=d_HSNWbyNEG(I,J)+tmpscal3 |
349 |
|
|
ENDDO |
350 |
|
|
ENDDO |
351 |
|
|
|
352 |
gforget |
1.90 |
c 1.5) treat the case of area but no ice/snow: |
353 |
|
|
c |
354 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
355 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
356 |
|
|
CADJ & key = iicekey, byte = isbyte |
357 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
358 |
|
|
CADJ & key = iicekey, byte = isbyte |
359 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
360 |
|
|
CADJ & key = iicekey, byte = isbyte |
361 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
362 |
|
|
DO J=1,sNy |
363 |
|
|
DO I=1,sNx |
364 |
|
|
IF ((HEFF(i,j,bi,bj).EQ.0. _d 0).AND. |
365 |
|
|
& (HSNOW(i,j,bi,bj).EQ.0. _d 0)) AREA(I,J,bi,bj)=0. _d 0 |
366 |
|
|
ENDDO |
367 |
|
|
ENDDO |
368 |
|
|
|
369 |
gforget |
1.87 |
c 2) treat the case of very small area: |
370 |
|
|
c |
371 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
372 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
373 |
|
|
CADJ & key = iicekey, byte = isbyte |
374 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
375 |
|
|
DO J=1,sNy |
376 |
|
|
DO I=1,sNx |
377 |
jmc |
1.91 |
IF ((HEFF(i,j,bi,bj).GT.0).OR.(HSNOW(i,j,bi,bj).GT.0)) |
378 |
gforget |
1.87 |
& AREA(I,J,bi,bj)=MAX(AREA(I,J,bi,bj),areaMin) |
379 |
|
|
ENDDO |
380 |
|
|
ENDDO |
381 |
|
|
|
382 |
gforget |
1.89 |
c 2.5) treat case of excessive ice cover: |
383 |
|
|
c |
384 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
385 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
386 |
|
|
CADJ & key = iicekey, byte = isbyte |
387 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
388 |
|
|
DO J=1,sNy |
389 |
|
|
DO I=1,sNx |
390 |
|
|
AREA(I,J,bi,bj)=MIN(AREA(I,J,bi,bj),areaMax) |
391 |
|
|
ENDDO |
392 |
|
|
ENDDO |
393 |
|
|
|
394 |
gforget |
1.87 |
c 3) store regularized values of heff, hsnow, area at the onset of thermo. |
395 |
|
|
DO J=1,sNy |
396 |
|
|
DO I=1,sNx |
397 |
|
|
HEFFpreTH(I,J)=HEFF(I,J,bi,bj) |
398 |
|
|
HSNWpreTH(I,J)=HSNOW(I,J,bi,bj) |
399 |
|
|
AREApreTH(I,J)=AREA(I,J,bi,bj) |
400 |
|
|
ENDDO |
401 |
|
|
ENDDO |
402 |
|
|
|
403 |
|
|
c 4) treat sea ice salinity pathological cases |
404 |
|
|
#ifdef SEAICE_SALINITY |
405 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
406 |
|
|
CADJ STORE hsalt(:,:,bi,bj) = comlev1_bibj, |
407 |
|
|
CADJ & key = iicekey, byte = isbyte |
408 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
409 |
|
|
CADJ & key = iicekey, byte = isbyte |
410 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
411 |
|
|
DO J=1,sNy |
412 |
|
|
DO I=1,sNx |
413 |
|
|
IF ( (HSALT(I,J,bi,bj) .LT. 0.0).OR. |
414 |
|
|
& (HEFF(I,J,bi,bj) .EQ. 0.0) ) THEN |
415 |
|
|
saltFluxAdjust(I,J) = - HEFFM(I,J,bi,bj) * |
416 |
|
|
& HSALT(I,J,bi,bj) / SEAICE_deltaTtherm |
417 |
|
|
HSALT(I,J,bi,bj) = 0.0 _d 0 |
418 |
|
|
ENDIF |
419 |
|
|
ENDDO |
420 |
|
|
ENDDO |
421 |
|
|
#endif /* SEAICE_SALINITY */ |
422 |
|
|
|
423 |
|
|
c 5) treat sea ice age pathological cases |
424 |
|
|
c ... |
425 |
jmc |
1.91 |
|
426 |
gforget |
1.87 |
#else |
427 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
428 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
429 |
|
|
CADJ & key = iicekey, byte = isbyte |
430 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
431 |
dimitri |
1.69 |
DO J=1,sNy |
432 |
|
|
DO I=1,sNx |
433 |
gforget |
1.87 |
HEFFpreTH(I,J)=HEFFNM1(I,J,bi,bj) |
434 |
|
|
HSNWpreTH(I,J)=HSNOW(I,J,bi,bj) |
435 |
|
|
AREApreTH(I,J)=AREANM1(I,J,bi,bj) |
436 |
|
|
d_HEFFbyNEG(I,J)=0. _d 0 |
437 |
|
|
d_HSNWbyNEG(I,J)=0. _d 0 |
438 |
dimitri |
1.69 |
ENDDO |
439 |
|
|
ENDDO |
440 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
441 |
dimitri |
1.69 |
|
442 |
|
|
|
443 |
gforget |
1.89 |
c 4) COMPUTE ACTUAL ICE/SNOW THICKNESS; USE MIN/MAX VALUES |
444 |
|
|
c TO REGULARIZE SEAICE_SOLVE4TEMP/d_AREA COMPUTATIONS |
445 |
gforget |
1.87 |
c |
446 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
447 |
gforget |
1.87 |
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
448 |
|
|
CADJ & key = iicekey, byte = isbyte |
449 |
dimitri |
1.69 |
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
450 |
|
|
CADJ & key = iicekey, byte = isbyte |
451 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
452 |
|
|
CADJ & key = iicekey, byte = isbyte |
453 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
454 |
|
|
DO J=1,sNy |
455 |
|
|
DO I=1,sNx |
456 |
gforget |
1.87 |
tmpscal1 = MAX(areaMin,AREApreTH(I,J)) |
457 |
|
|
hsnowActual(I,J) = HSNWpreTH(I,J)/tmpscal1 |
458 |
|
|
tmpscal2 = HEFFpreTH(I,J)/tmpscal1 |
459 |
|
|
heffActual(I,J) = MAX(tmpscal2,hiceMin) |
460 |
gforget |
1.89 |
cgf do we need to keep this comment? |
461 |
|
|
C |
462 |
dimitri |
1.69 |
C Capping the actual ice thickness effectively enforces a |
463 |
|
|
C minimum of heat flux through the ice and helps getting rid of |
464 |
|
|
C very thick ice. |
465 |
|
|
cdm actually, this does exactly the opposite, i.e., ice is thicker |
466 |
gforget |
1.83 |
cdm when heffActual is capped, so I am commenting out |
467 |
|
|
cdm heffActual(I,J) = MIN(heffActual(I,J),9.0 _d +00) |
468 |
dimitri |
1.69 |
ENDDO |
469 |
|
|
ENDDO |
470 |
|
|
|
471 |
gforget |
1.95 |
#ifdef ALLOW_AUTODIFF_TAMC |
472 |
gforget |
1.96 |
#ifdef SEAICE_SIMPLIFY_GROWTH_ADJ |
473 |
gforget |
1.95 |
CALL ZERO_ADJ_1D( sNx*sNy, heffActual, myThid) |
474 |
gforget |
1.96 |
CALL ZERO_ADJ_1D( sNx*sNy, hsnowActual, myThid) |
475 |
gforget |
1.95 |
#endif |
476 |
|
|
#endif |
477 |
gforget |
1.87 |
|
478 |
gforget |
1.88 |
c =================================================================== |
479 |
gforget |
1.89 |
c ================PART 2: determine heat fluxes/stocks=============== |
480 |
gforget |
1.88 |
c =================================================================== |
481 |
|
|
|
482 |
|
|
|
483 |
|
|
|
484 |
gforget |
1.75 |
C determine available heat due to the atmosphere -- for open water |
485 |
|
|
C ================================================================ |
486 |
|
|
|
487 |
|
|
C ocean surface/mixed layer temperature |
488 |
dimitri |
1.69 |
DO J=1,sNy |
489 |
|
|
DO I=1,sNx |
490 |
gforget |
1.83 |
TMIX(I,J,bi,bj)=theta(I,J,kSurface,bi,bj)+celsius2K |
491 |
dimitri |
1.69 |
ENDDO |
492 |
|
|
ENDDO |
493 |
|
|
|
494 |
gforget |
1.75 |
C wind speed from exf |
495 |
dimitri |
1.69 |
DO J=1,sNy |
496 |
|
|
DO I=1,sNx |
497 |
|
|
UG(I,J) = MAX(SEAICE_EPS,wspeed(I,J,bi,bj)) |
498 |
|
|
ENDDO |
499 |
|
|
ENDDO |
500 |
|
|
|
501 |
gforget |
1.75 |
CALL SEAICE_BUDGET_OCEAN( |
502 |
|
|
I UG, |
503 |
|
|
U TMIX, |
504 |
|
|
O a_QbyATM_open, a_QSWbyATM_open, |
505 |
|
|
I bi, bj, myTime, myIter, myThid ) |
506 |
|
|
|
507 |
|
|
|
508 |
|
|
C determine available heat due to the atmosphere -- for ice covered water |
509 |
|
|
C ======================================================================= |
510 |
dimitri |
1.69 |
|
511 |
gforget |
1.89 |
#ifdef ALLOW_ATM_WIND |
512 |
dimitri |
1.69 |
IF (useRelativeWind) THEN |
513 |
|
|
C Compute relative wind speed over sea ice. |
514 |
|
|
DO J=1,sNy |
515 |
|
|
DO I=1,sNx |
516 |
|
|
SPEED_SQ = |
517 |
|
|
& (uWind(I,J,bi,bj) |
518 |
|
|
& +0.5 _d 0*(uVel(i,j,kSurface,bi,bj) |
519 |
|
|
& +uVel(i+1,j,kSurface,bi,bj)) |
520 |
|
|
& -0.5 _d 0*(uice(i,j,bi,bj)+uice(i+1,j,bi,bj)))**2 |
521 |
|
|
& +(vWind(I,J,bi,bj) |
522 |
|
|
& +0.5 _d 0*(vVel(i,j,kSurface,bi,bj) |
523 |
|
|
& +vVel(i,j+1,kSurface,bi,bj)) |
524 |
|
|
& -0.5 _d 0*(vice(i,j,bi,bj)+vice(i,j+1,bi,bj)))**2 |
525 |
|
|
IF ( SPEED_SQ .LE. SEAICE_EPS_SQ ) THEN |
526 |
|
|
UG(I,J)=SEAICE_EPS |
527 |
|
|
ELSE |
528 |
|
|
UG(I,J)=SQRT(SPEED_SQ) |
529 |
|
|
ENDIF |
530 |
|
|
ENDDO |
531 |
|
|
ENDDO |
532 |
|
|
ENDIF |
533 |
gforget |
1.89 |
#endif |
534 |
gforget |
1.75 |
|
535 |
mlosch |
1.98 |
#ifdef ALLOW_AUTODIFF_TAMC |
536 |
|
|
CADJ STORE tice = comlev1, key = ikey_dynamics, byte = isbyte |
537 |
|
|
# ifdef SEAICE_MULTICATEGORY |
538 |
|
|
CADJ STORE tices = comlev1, key = ikey_dynamics, byte = isbyte |
539 |
|
|
# endif /* SEAICE_MULTICATEGORY */ |
540 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
541 |
|
|
|
542 |
gforget |
1.99 |
#ifdef SEAICE_MULTICATEGORY |
543 |
mlosch |
1.98 |
DO IT=1,nDim |
544 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
545 |
|
|
C Why do we need this store directive when we have just stored |
546 |
|
|
C TICES before the loop? |
547 |
|
|
ilockey = (iicekey-1)*nDim + IT |
548 |
dimitri |
1.69 |
CADJ STORE tices(:,:,it,bi,bj) = comlev1_multdim, |
549 |
|
|
CADJ & key = ilockey, byte = isbyte |
550 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
551 |
mlosch |
1.98 |
pFac = (2.0 _d 0*real(IT)-1.0 _d 0)/nDim |
552 |
dimitri |
1.69 |
DO J=1,sNy |
553 |
|
|
DO I=1,sNx |
554 |
mlosch |
1.98 |
heffActualP(I,J)= heffActual(I,J)*pFac |
555 |
dimitri |
1.69 |
TICE(I,J,bi,bj)=TICES(I,J,IT,bi,bj) |
556 |
|
|
ENDDO |
557 |
|
|
ENDDO |
558 |
jmc |
1.70 |
CALL SEAICE_SOLVE4TEMP( |
559 |
gforget |
1.83 |
I UG, heffActualP, hsnowActual, |
560 |
dimitri |
1.69 |
U TICE, |
561 |
gforget |
1.71 |
O a_QbyATMmult_cover, a_QSWbyATMmult_cover, |
562 |
dimitri |
1.69 |
I bi, bj, myTime, myIter, myThid ) |
563 |
|
|
DO J=1,sNy |
564 |
|
|
DO I=1,sNx |
565 |
gforget |
1.75 |
C average over categories |
566 |
mlosch |
1.98 |
a_QbyATM_cover (I,J) = a_QbyATM_cover(I,J) |
567 |
|
|
& + a_QbyATMmult_cover(I,J)/nDim |
568 |
|
|
a_QSWbyATM_cover (I,J) = a_QSWbyATM_cover(I,J) |
569 |
|
|
& + a_QSWbyATMmult_cover(I,J)/nDim |
570 |
dimitri |
1.69 |
TICES(I,J,IT,bi,bj) = TICE(I,J,bi,bj) |
571 |
|
|
ENDDO |
572 |
|
|
ENDDO |
573 |
|
|
ENDDO |
574 |
gforget |
1.99 |
#else |
575 |
|
|
CALL SEAICE_SOLVE4TEMP( |
576 |
|
|
I UG, heffActual, hsnowActual, |
577 |
|
|
U TICE, |
578 |
|
|
O a_QbyATM_cover, a_QSWbyATM_cover, |
579 |
|
|
I bi, bj, myTime, myIter, myThid ) |
580 |
|
|
#endif /* SEAICE_MULTICATEGORY */ |
581 |
dimitri |
1.69 |
C-- End loop over multi-categories |
582 |
|
|
|
583 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
584 |
|
|
IF ( useDiagnostics ) THEN |
585 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIatmQnt',myThid) ) THEN |
586 |
|
|
DO J=1,sNy |
587 |
|
|
DO I=1,sNx |
588 |
|
|
DIAGarray(I,J) = maskC(I,J,kSurface,bi,bj) * ( |
589 |
gforget |
1.87 |
& a_QbyATM_cover(I,J) * AREApreTH(I,J) + |
590 |
|
|
& a_QbyATM_open(I,J) * ( ONE - AREApreTH(I,J) ) ) |
591 |
dimitri |
1.69 |
ENDDO |
592 |
|
|
ENDDO |
593 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIatmQnt',0,1,3,bi,bj,myThid) |
594 |
|
|
ENDIF |
595 |
|
|
ENDIF |
596 |
|
|
#endif |
597 |
|
|
|
598 |
gforget |
1.83 |
c switch heat fluxes from W/m2 to 'effective' ice meters |
599 |
|
|
DO J=1,sNy |
600 |
|
|
DO I=1,sNx |
601 |
jmc |
1.91 |
a_QbyATM_cover(I,J) = a_QbyATM_cover(I,J) |
602 |
gforget |
1.87 |
& * convertQ2HI * AREApreTH(I,J) |
603 |
jmc |
1.91 |
a_QSWbyATM_cover(I,J) = a_QSWbyATM_cover(I,J) |
604 |
gforget |
1.87 |
& * convertQ2HI * AREApreTH(I,J) |
605 |
jmc |
1.91 |
a_QbyATM_open(I,J) = a_QbyATM_open(I,J) |
606 |
gforget |
1.87 |
& * convertQ2HI * ( ONE - AREApreTH(I,J) ) |
607 |
jmc |
1.91 |
a_QSWbyATM_open(I,J) = a_QSWbyATM_open(I,J) |
608 |
gforget |
1.87 |
& * convertQ2HI * ( ONE - AREApreTH(I,J) ) |
609 |
gforget |
1.89 |
c and initialize r_QbyATM_cover/r_QbyATM_open |
610 |
gforget |
1.84 |
r_QbyATM_cover(I,J)=a_QbyATM_cover(I,J) |
611 |
gforget |
1.89 |
r_QbyATM_open(I,J)=a_QbyATM_open(I,J) |
612 |
gforget |
1.83 |
ENDDO |
613 |
|
|
ENDDO |
614 |
gforget |
1.75 |
|
615 |
|
|
|
616 |
jmc |
1.91 |
C determine available heat due to the ice pack tying the |
617 |
gforget |
1.75 |
C underlying surface water temperature to freezing point |
618 |
|
|
C ====================================================== |
619 |
|
|
|
620 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
621 |
|
|
CADJ STORE theta(:,:,:,bi,bj) = comlev1_bibj, |
622 |
|
|
CADJ & key = iicekey, byte = isbyte |
623 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
624 |
|
|
CADJ & key = iicekey, byte = isbyte |
625 |
|
|
#endif |
626 |
gforget |
1.72 |
|
627 |
dimitri |
1.69 |
DO J=1,sNy |
628 |
|
|
DO I=1,sNx |
629 |
|
|
IF ( .NOT. inAdMode ) THEN |
630 |
|
|
#ifdef SEAICE_VARIABLE_FREEZING_POINT |
631 |
|
|
TBC = -0.0575 _d 0*salt(I,J,kSurface,bi,bj) + 0.0901 _d 0 |
632 |
|
|
#endif /* SEAICE_VARIABLE_FREEZING_POINT */ |
633 |
|
|
IF ( theta(I,J,kSurface,bi,bj) .GE. TBC ) THEN |
634 |
gforget |
1.84 |
a_QbyOCN(i,j) = -SEAICE_availHeatFrac |
635 |
dimitri |
1.69 |
& * (theta(I,J,kSurface,bi,bj)-TBC) * dRf(kSurface) |
636 |
gforget |
1.77 |
& * hFacC(i,j,kSurface,bi,bj) * |
637 |
gforget |
1.83 |
& (HeatCapacity_Cp*rhoConst/QI) |
638 |
dimitri |
1.69 |
ELSE |
639 |
gforget |
1.84 |
a_QbyOCN(i,j) = -SEAICE_availHeatFracFrz |
640 |
dimitri |
1.69 |
& * (theta(I,J,kSurface,bi,bj)-TBC) * dRf(kSurface) |
641 |
gforget |
1.77 |
& * hFacC(i,j,kSurface,bi,bj) * |
642 |
gforget |
1.83 |
& (HeatCapacity_Cp*rhoConst/QI) |
643 |
dimitri |
1.69 |
ENDIF |
644 |
|
|
ELSE |
645 |
gforget |
1.84 |
a_QbyOCN(i,j) = 0. |
646 |
dimitri |
1.69 |
ENDIF |
647 |
gforget |
1.77 |
cgf heat and water conservation: ok -- since rid of 72.0764 factor |
648 |
gforget |
1.72 |
ENDDO |
649 |
|
|
ENDDO |
650 |
|
|
|
651 |
gforget |
1.96 |
#ifdef ALLOW_AUTODIFF_TAMC |
652 |
|
|
#ifdef SEAICE_SIMPLIFY_GROWTH_ADJ |
653 |
|
|
CALL ZERO_ADJ_1D( sNx*sNy, a_QbyOCN, myThid) |
654 |
|
|
#endif |
655 |
|
|
#endif |
656 |
gforget |
1.88 |
|
657 |
|
|
c =================================================================== |
658 |
|
|
c =========PART 3: determine effective thicknesses increments======== |
659 |
|
|
c =================================================================== |
660 |
|
|
|
661 |
|
|
|
662 |
|
|
|
663 |
gforget |
1.75 |
C compute ice thickness tendency due to ice-ocean interaction |
664 |
|
|
C =========================================================== |
665 |
|
|
|
666 |
gforget |
1.72 |
DO J=1,sNy |
667 |
|
|
DO I=1,sNx |
668 |
gforget |
1.85 |
d_HEFFbyOCNonICE(I,J)=MAX(a_QbyOCN(i,j), -HEFF(I,J,bi,bj)) |
669 |
gforget |
1.84 |
r_QbyOCN(I,J)=a_QbyOCN(I,J)-d_HEFFbyOCNonICE(I,J) |
670 |
|
|
HEFF(I,J,bi,bj)=HEFF(I,J,bi,bj) + d_HEFFbyOCNonICE(I,J) |
671 |
dimitri |
1.69 |
ENDDO |
672 |
|
|
ENDDO |
673 |
|
|
|
674 |
gforget |
1.96 |
#ifdef SEAICE_GROWTH_LEGACY |
675 |
dimitri |
1.69 |
#ifdef ALLOW_DIAGNOSTICS |
676 |
|
|
IF ( useDiagnostics ) THEN |
677 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIyneg ',myThid) ) THEN |
678 |
gforget |
1.84 |
CALL DIAGNOSTICS_FILL(d_HEFFbyOCNonICE, |
679 |
gforget |
1.71 |
& 'SIyneg ',0,1,1,bi,bj,myThid) |
680 |
dimitri |
1.69 |
ENDIF |
681 |
|
|
ENDIF |
682 |
|
|
#endif |
683 |
gforget |
1.96 |
#endif |
684 |
gforget |
1.75 |
|
685 |
gforget |
1.89 |
C compute snow melt tendency due to snow-atmosphere interaction |
686 |
gforget |
1.75 |
C ================================================================== |
687 |
|
|
|
688 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
689 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
690 |
|
|
CADJ & key = iicekey, byte = isbyte |
691 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
692 |
|
|
CADJ & key = iicekey, byte = isbyte |
693 |
gforget |
1.71 |
CADJ STORE a_QbyATM_cover(:,:) = comlev1_bibj, |
694 |
dimitri |
1.69 |
CADJ & key = iicekey, byte = isbyte |
695 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
696 |
gforget |
1.75 |
|
697 |
dimitri |
1.69 |
DO J=1,sNy |
698 |
|
|
DO I=1,sNx |
699 |
gforget |
1.89 |
IF ( a_QbyATM_cover(I,J).LT. 0. _d 0 ) THEN |
700 |
gforget |
1.85 |
tmpscal1= |
701 |
|
|
& MAX(r_QbyATM_cover(I,J)*ICE2SNOW, -HSNOW(I,J,bi,bj)) |
702 |
jmc |
1.91 |
ELSE |
703 |
gforget |
1.89 |
tmpscal1=0. _d 0 |
704 |
gforget |
1.73 |
ENDIF |
705 |
gforget |
1.89 |
d_HSNWbyATMonSNW(I,J)= tmpscal1 |
706 |
jmc |
1.91 |
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj) + tmpscal1 |
707 |
gforget |
1.89 |
r_QbyATM_cover(I,J)=r_QbyATM_cover(I,J) - tmpscal1/ICE2SNOW |
708 |
dimitri |
1.69 |
ENDDO |
709 |
|
|
ENDDO |
710 |
|
|
|
711 |
gforget |
1.89 |
C compute ice thickness tendency due to the atmosphere |
712 |
|
|
C ==================================================== |
713 |
gforget |
1.75 |
|
714 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
715 |
gforget |
1.89 |
CADJ STORE AREApreTH(:,:) = comlev1_bibj, |
716 |
dimitri |
1.69 |
CADJ & key = iicekey, byte = isbyte |
717 |
|
|
#endif |
718 |
gforget |
1.75 |
|
719 |
gforget |
1.82 |
cgf note: this block is not actually tested by lab_sea |
720 |
|
|
cgf where all experiments start in January. So even though |
721 |
|
|
cgf the v1.81=>v1.82 revision would change results in |
722 |
|
|
cgf warming conditions, the lab_sea results were not changed. |
723 |
|
|
|
724 |
dimitri |
1.69 |
DO J=1,sNy |
725 |
|
|
DO I=1,sNx |
726 |
gforget |
1.84 |
tmpscal2 = MAX(-HEFF(I,J,bi,bj),r_QbyATM_cover(I,J)) |
727 |
gforget |
1.89 |
d_HEFFbyATMonOCN(I,J)=d_HEFFbyATMonOCN(I,J)+tmpscal2 |
728 |
|
|
r_QbyATM_cover(I,J)=r_QbyATM_cover(I,J)-tmpscal2 |
729 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj) + tmpscal2 |
730 |
gforget |
1.74 |
ENDDO |
731 |
|
|
ENDDO |
732 |
dimitri |
1.69 |
|
733 |
gforget |
1.75 |
|
734 |
jmc |
1.91 |
C attribute precip to fresh water or snow stock, |
735 |
gforget |
1.75 |
C depending on atmospheric conditions. |
736 |
|
|
C ================================================= |
737 |
dimitri |
1.69 |
#ifdef ALLOW_ATM_TEMP |
738 |
gforget |
1.74 |
DO J=1,sNy |
739 |
|
|
DO I=1,sNx |
740 |
gforget |
1.89 |
c possible alternatives to the a_QbyATM_cover criterium |
741 |
|
|
c IF (TICE(I,J,bi,bj) .LT. TMIX) THEN |
742 |
|
|
c IF (atemp(I,J,bi,bj) .LT. celsius2K) THEN |
743 |
|
|
IF ( a_QbyATM_cover(I,J).GE. 0. _d 0 ) THEN |
744 |
gforget |
1.73 |
C add precip as snow |
745 |
gforget |
1.84 |
d_HFRWbyRAIN(I,J)=0. _d 0 |
746 |
|
|
d_HSNWbyRAIN(I,J)=convertPRECIP2HI*ICE2SNOW* |
747 |
gforget |
1.87 |
& PRECIP(I,J,bi,bj)*AREApreTH(I,J) |
748 |
jmc |
1.91 |
ELSE |
749 |
gforget |
1.73 |
c add precip to the fresh water bucket |
750 |
gforget |
1.84 |
d_HFRWbyRAIN(I,J)=-convertPRECIP2HI* |
751 |
gforget |
1.87 |
& PRECIP(I,J,bi,bj)*AREApreTH(I,J) |
752 |
gforget |
1.84 |
d_HSNWbyRAIN(I,J)=0. _d 0 |
753 |
dimitri |
1.69 |
ENDIF |
754 |
jmc |
1.91 |
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj) + d_HSNWbyRAIN(I,J) |
755 |
dimitri |
1.69 |
ENDDO |
756 |
|
|
ENDDO |
757 |
gforget |
1.89 |
cgf note: this does not affect air-sea heat flux, |
758 |
jmc |
1.91 |
cgf since the implied air heat gain to turn |
759 |
gforget |
1.89 |
cgf rain to snow is not a surface process. |
760 |
gforget |
1.74 |
#endif /* ALLOW_ATM_TEMP */ |
761 |
dimitri |
1.69 |
|
762 |
gforget |
1.75 |
|
763 |
gforget |
1.89 |
C compute snow melt due to heat available from ocean. |
764 |
gforget |
1.75 |
C ================================================================= |
765 |
dimitri |
1.69 |
|
766 |
gforget |
1.93 |
#ifdef ALLOW_AUTODIFF_TAMC |
767 |
|
|
CADJ STORE r_QbyOCN(:,:) = comlev1_bibj, |
768 |
|
|
CADJ & key = iicekey, byte = isbyte |
769 |
|
|
CADJ STORE HSNOW(:,:,bi,bj) = comlev1_bibj, |
770 |
|
|
CADJ & key = iicekey, byte = isbyte |
771 |
|
|
#endif |
772 |
gforget |
1.89 |
cgf do we need to keep this comment and cpp bracket? |
773 |
|
|
c |
774 |
dimitri |
1.69 |
cph( very sensitive bit here by JZ |
775 |
|
|
#ifndef SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING |
776 |
|
|
DO J=1,sNy |
777 |
|
|
DO I=1,sNx |
778 |
gforget |
1.84 |
IF( r_QbyOCN(i,j) .LT. ZERO .AND. |
779 |
dimitri |
1.69 |
& HSNOW(I,J,bi,bj) .GT. ZERO ) THEN |
780 |
gforget |
1.85 |
tmpscal2= MAX(r_QbyOCN(i,j)*ICE2SNOW, -HSNOW(I,J,bi,bj)) |
781 |
gforget |
1.72 |
ELSE |
782 |
gforget |
1.81 |
tmpscal2= 0. _d 0 |
783 |
dimitri |
1.69 |
ENDIF |
784 |
gforget |
1.85 |
d_HSNWbyOCNonSNW(I,J) = tmpscal2 |
785 |
gforget |
1.84 |
r_QbyOCN(I,J)=r_QbyOCN(I,J) |
786 |
|
|
& -d_HSNWbyOCNonSNW(I,J)/ICE2SNOW |
787 |
gforget |
1.81 |
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)+d_HSNWbyOCNonSNW(I,J) |
788 |
dimitri |
1.69 |
ENDDO |
789 |
|
|
ENDDO |
790 |
gforget |
1.75 |
#endif /* SEAICE_EXCLUDE_FOR_EXACT_AD_TESTING */ |
791 |
dimitri |
1.69 |
cph) |
792 |
|
|
|
793 |
gforget |
1.90 |
|
794 |
|
|
C gain of new ice over open water |
795 |
|
|
C =============================== |
796 |
|
|
#ifndef SEAICE_GROWTH_LEGACY |
797 |
|
|
#ifdef SEAICE_DO_OPEN_WATER_GROWTH |
798 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
799 |
gforget |
1.99 |
CADJ STORE HEFF(:,:,bi,bj) = comlev1_bibj, |
800 |
gforget |
1.90 |
CADJ & key = iicekey, byte = isbyte |
801 |
|
|
#endif |
802 |
|
|
DO J=1,sNy |
803 |
|
|
DO I=1,sNx |
804 |
|
|
if ( (r_QbyATM_open(I,J).GT.0. _d 0).AND. |
805 |
gforget |
1.99 |
& (HEFF(I,J,bi,bj).GT.0. _d 0) ) then |
806 |
gforget |
1.90 |
tmpscal1=r_QbyATM_open(I,J)+r_QbyOCN(i,j) |
807 |
jmc |
1.91 |
c at this point r_QbyOCN(i,j)<=0 and represents the heat |
808 |
gforget |
1.90 |
c that is still needed to get to the first layer to freezing point |
809 |
|
|
tmpscal2=SWFRACB*(a_QSWbyATM_cover(I,J) |
810 |
|
|
& +a_QSWbyATM_open(I,J)) |
811 |
jmc |
1.91 |
c SWFRACB*tmpscal2<=0 is the heat (out of qnet) that is not |
812 |
gforget |
1.90 |
c going to the first layer, which favors its freezing |
813 |
|
|
tmpscal3=MAX(0. _d 0, tmpscal1-tmpscal2) |
814 |
|
|
else |
815 |
|
|
tmpscal3=0. _d 0 |
816 |
|
|
endif |
817 |
|
|
d_HEFFbyATMonOCN_open(I,J)=tmpscal3 |
818 |
|
|
c The distinct d_HEFFbyATMonOCN_open array is only needed for d_AREA computation. |
819 |
jmc |
1.91 |
c For the rest it is treated as another contribution to d_HEFFbyATMonOCN. |
820 |
gforget |
1.90 |
d_HEFFbyATMonOCN(I,J)=d_HEFFbyATMonOCN(I,J)+tmpscal3 |
821 |
|
|
r_QbyATM_open(I,J)=r_QbyATM_open(I,J)-tmpscal3 |
822 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj) + tmpscal3 |
823 |
|
|
ENDDO |
824 |
|
|
ENDDO |
825 |
|
|
#endif /* SEAICE_DO_OPEN_WATER_GROWTH */ |
826 |
|
|
#endif /* SEAICE_GROWTH_LEGACY */ |
827 |
|
|
|
828 |
|
|
|
829 |
gforget |
1.87 |
C convert snow to ice if submerged. |
830 |
|
|
C ================================= |
831 |
|
|
|
832 |
gforget |
1.89 |
#ifndef SEAICE_GROWTH_LEGACY |
833 |
|
|
c note: in legacy, this process is done at the end |
834 |
gforget |
1.87 |
#ifdef ALLOW_SEAICE_FLOODING |
835 |
|
|
IF ( SEAICEuseFlooding ) THEN |
836 |
|
|
DO J=1,sNy |
837 |
|
|
DO I=1,sNx |
838 |
|
|
hDraft = (HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
839 |
|
|
& +HEFF(I,J,bi,bj)*SEAICE_rhoIce)/rhoConst |
840 |
|
|
tmpscal1 = MAX( 0. _d 0, hDraft - HEFF(I,J,bi,bj)) |
841 |
|
|
d_HEFFbyFLOODING(I,J)=tmpscal1 |
842 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj)+d_HEFFbyFLOODING(I,J) |
843 |
|
|
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)- |
844 |
jmc |
1.91 |
& d_HEFFbyFLOODING(I,J)*ICE2SNOW |
845 |
gforget |
1.87 |
ENDDO |
846 |
|
|
ENDDO |
847 |
|
|
ENDIF |
848 |
|
|
#endif /* ALLOW_SEAICE_FLOODING */ |
849 |
|
|
#endif /* SEAICE_GROWTH_LEGACY */ |
850 |
|
|
|
851 |
|
|
|
852 |
gforget |
1.75 |
|
853 |
gforget |
1.88 |
c =================================================================== |
854 |
|
|
c ==========PART 4: determine ice cover fraction increments=========- |
855 |
|
|
c =================================================================== |
856 |
|
|
|
857 |
|
|
|
858 |
gforget |
1.75 |
|
859 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
860 |
gforget |
1.88 |
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
861 |
|
|
CADJ & key = iicekey, byte = isbyte |
862 |
gforget |
1.90 |
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
863 |
|
|
CADJ & key = iicekey, byte = isbyte |
864 |
gforget |
1.88 |
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
865 |
|
|
CADJ & key = iicekey, byte = isbyte |
866 |
|
|
CADJ STORE r_QbyATM_cover(:,:) = comlev1_bibj, |
867 |
|
|
CADJ & key = iicekey, byte = isbyte |
868 |
gforget |
1.89 |
CADJ STORE r_QbyATM_open(:,:) = comlev1_bibj, |
869 |
|
|
CADJ & key = iicekey, byte = isbyte |
870 |
gforget |
1.88 |
CADJ STORE a_QbyATM_cover(:,:) = comlev1_bibj, |
871 |
|
|
CADJ & key = iicekey, byte = isbyte |
872 |
|
|
CADJ STORE a_QbyATM_open(:,:) = comlev1_bibj, |
873 |
|
|
CADJ & key = iicekey, byte = isbyte |
874 |
|
|
CADJ STORE a_QSWbyATM_cover(:,:) = comlev1_bibj, |
875 |
|
|
CADJ & key = iicekey, byte = isbyte |
876 |
|
|
CADJ STORE a_QSWbyATM_open(:,:) = comlev1_bibj, |
877 |
|
|
CADJ & key = iicekey, byte = isbyte |
878 |
dimitri |
1.69 |
#endif /* ALLOW_AUTODIFF_TAMC */ |
879 |
|
|
|
880 |
|
|
DO J=1,sNy |
881 |
|
|
DO I=1,sNx |
882 |
gforget |
1.89 |
#ifndef SEAICE_GROWTH_LEGACY |
883 |
gforget |
1.90 |
c compute ice melt due to ATM (and OCN) heat stocks |
884 |
gforget |
1.89 |
c |
885 |
jmc |
1.91 |
# ifdef SEAICE_OCN_MELT_ACT_ON_AREA |
886 |
gforget |
1.90 |
c ice cover reduction by joint OCN+ATM melt |
887 |
jmc |
1.91 |
tmpscal3 = MIN( 0. _d 0 , |
888 |
|
|
& d_HEFFbyATMonOCN(I,J)+d_HEFFbyOCNonICE(I,J) ) |
889 |
gforget |
1.90 |
# else |
890 |
|
|
c ice cover reduction by ATM melt only -- as in legacy code |
891 |
jmc |
1.91 |
tmpscal3 = MIN( 0. _d 0 , d_HEFFbyATMonOCN(I,J) ) |
892 |
|
|
# endif |
893 |
gforget |
1.89 |
C gain of new ice over open water |
894 |
|
|
c |
895 |
gforget |
1.90 |
# ifdef SEAICE_DO_OPEN_WATER_GROWTH |
896 |
|
|
c the one effectively used to increment HEFF |
897 |
|
|
tmpscal4 = d_HEFFbyATMonOCN_open(I,J) |
898 |
|
|
# else |
899 |
|
|
c the virtual one -- as in legcy code |
900 |
|
|
tmpscal4 = MAX(ZERO,a_QbyATM_open(I,J)) |
901 |
|
|
# endif |
902 |
gforget |
1.89 |
#else |
903 |
gforget |
1.88 |
c compute heff after ice melt by ocn: |
904 |
|
|
tmpscal0=HEFF(I,J,bi,bj) |
905 |
|
|
& - d_HEFFbyATMonOCN(I,J) - d_HEFFbyFLOODING(I,J) |
906 |
|
|
c compute available heat left after snow melt by atm: |
907 |
|
|
tmpscal1= a_QbyATM_open(I,J)+a_QbyATM_cover(I,J) |
908 |
|
|
& - d_HSNWbyATMonSNW(I,J)/ICE2SNOW |
909 |
|
|
c (cannot melt more than all the ice) |
910 |
|
|
tmpscal2 = MAX(-tmpscal0,tmpscal1) |
911 |
|
|
tmpscal3 = MIN(ZERO,tmpscal2) |
912 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
913 |
|
|
DIAGarray(I,J) = tmpscal2 |
914 |
|
|
#endif |
915 |
gforget |
1.89 |
C gain of new ice over open water |
916 |
gforget |
1.88 |
tmpscal4 = MAX(ZERO,a_QbyATM_open(I,J)) |
917 |
gforget |
1.89 |
#endif /* SEAICE_GROWTH_LEGACY */ |
918 |
gforget |
1.88 |
c compute cover fraction tendency |
919 |
|
|
IF ( YC(I,J,bi,bj) .LT. ZERO ) THEN |
920 |
|
|
d_AREAbyATM(I,J)=tmpscal4/HO_south |
921 |
|
|
ELSE |
922 |
|
|
d_AREAbyATM(I,J)=tmpscal4/HO |
923 |
mlosch |
1.98 |
ENDIF |
924 |
|
|
d_AREAbyATM(I,J)=d_AREAbyATM(I,J) |
925 |
gforget |
1.88 |
#ifndef SEAICE_GROWTH_LEGACY |
926 |
mlosch |
1.98 |
& +HALF*tmpscal3/heffActual(I,J) |
927 |
gforget |
1.88 |
#else |
928 |
mlosch |
1.98 |
& +HALF*tmpscal3*AREApreTH(I,J) |
929 |
|
|
& /(tmpscal0+.00001 _d 0) |
930 |
dimitri |
1.69 |
#endif |
931 |
gforget |
1.88 |
c apply tendency |
932 |
gforget |
1.90 |
IF ( (HEFF(i,j,bi,bj).GT.0. _d 0).OR. |
933 |
|
|
& (HSNOW(i,j,bi,bj).GT.0. _d 0) ) THEN |
934 |
jmc |
1.91 |
AREA(I,J,bi,bj)=max(0. _d 0 , min( 1. _d 0, |
935 |
gforget |
1.88 |
& AREA(I,J,bi,bj)+d_AREAbyATM(I,J) ) ) |
936 |
gforget |
1.90 |
ELSE |
937 |
|
|
AREA(I,J,bi,bj)=0. _d 0 |
938 |
|
|
ENDIF |
939 |
dimitri |
1.69 |
ENDDO |
940 |
|
|
ENDDO |
941 |
|
|
|
942 |
gforget |
1.96 |
#ifdef SEAICE_GROWTH_LEGACY |
943 |
dimitri |
1.69 |
#ifdef ALLOW_DIAGNOSTICS |
944 |
|
|
IF ( useDiagnostics ) THEN |
945 |
gforget |
1.88 |
IF ( DIAGNOSTICS_IS_ON('SIfice ',myThid) ) THEN |
946 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIfice ',0,1,3,bi,bj,myThid) |
947 |
dimitri |
1.69 |
ENDIF |
948 |
|
|
ENDIF |
949 |
|
|
#endif |
950 |
gforget |
1.96 |
#endif |
951 |
gforget |
1.75 |
|
952 |
dimitri |
1.69 |
|
953 |
gforget |
1.88 |
c =================================================================== |
954 |
|
|
c =============PART 5: determine ice salinity increments============= |
955 |
|
|
c =================================================================== |
956 |
|
|
|
957 |
|
|
|
958 |
|
|
#ifdef ALLOW_ATM_TEMP |
959 |
dimitri |
1.69 |
#ifdef SEAICE_SALINITY |
960 |
|
|
|
961 |
gforget |
1.87 |
#ifdef SEAICE_GROWTH_LEGACY |
962 |
gforget |
1.88 |
# ifdef ALLOW_AUTODIFF_TAMC |
963 |
|
|
CADJ STORE hsalt(:,:,bi,bj) = comlev1_bibj, |
964 |
|
|
CADJ & key = iicekey, byte = isbyte |
965 |
|
|
# endif /* ALLOW_AUTODIFF_TAMC */ |
966 |
dimitri |
1.69 |
DO J=1,sNy |
967 |
|
|
DO I=1,sNx |
968 |
|
|
C set HSALT = 0 if HSALT < 0 and compute salt to remove from ocean |
969 |
|
|
IF ( HSALT(I,J,bi,bj) .LT. 0.0 ) THEN |
970 |
|
|
saltFluxAdjust(I,J) = - HEFFM(I,J,bi,bj) * |
971 |
|
|
& HSALT(I,J,bi,bj) / SEAICE_deltaTtherm |
972 |
|
|
HSALT(I,J,bi,bj) = 0.0 _d 0 |
973 |
|
|
ENDIF |
974 |
|
|
ENDDO |
975 |
|
|
ENDDO |
976 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
977 |
dimitri |
1.69 |
|
978 |
|
|
#ifdef ALLOW_AUTODIFF_TAMC |
979 |
|
|
CADJ STORE hsalt(:,:,bi,bj) = comlev1_bibj, |
980 |
|
|
CADJ & key = iicekey, byte = isbyte |
981 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
982 |
|
|
|
983 |
|
|
DO J=1,sNy |
984 |
|
|
DO I=1,sNx |
985 |
gforget |
1.87 |
c sum up the terms that affect the salt content of the ice pack |
986 |
gforget |
1.84 |
tmpscal1=d_HEFFbyOCNonICE(I,J)+d_HEFFbyATMonOCN(I,J) |
987 |
gforget |
1.87 |
c recompute HEFF before thermodyncamic updates (which is not AREApreTH in legacy code) |
988 |
|
|
tmpscal2=HEFF(I,J,bi,bj)-tmpscal1-d_HEFFbyFLOODING(I,J) |
989 |
gforget |
1.84 |
C tmpscal1 > 0 : m of sea ice that is created |
990 |
|
|
IF ( tmpscal1 .GE. 0.0 ) THEN |
991 |
dimitri |
1.69 |
saltFlux(I,J,bi,bj) = |
992 |
gforget |
1.87 |
& HEFFM(I,J,bi,bj)/SEAICE_deltaTtherm |
993 |
|
|
& *SEAICE_salinity*salt(I,j,kSurface,bi,bj) |
994 |
|
|
& *tmpscal1*ICE2WATR*rhoConstFresh |
995 |
dimitri |
1.69 |
#ifdef ALLOW_SALT_PLUME |
996 |
|
|
C saltPlumeFlux is defined only during freezing: |
997 |
|
|
saltPlumeFlux(I,J,bi,bj)= |
998 |
gforget |
1.87 |
& HEFFM(I,J,bi,bj)/SEAICE_deltaTtherm |
999 |
|
|
& *(1-SEAICE_salinity)*salt(I,j,kSurface,bi,bj) |
1000 |
|
|
& *tmpscal1*ICE2WATR*rhoConstFresh |
1001 |
dimitri |
1.69 |
C if SaltPlumeSouthernOcean=.FALSE. turn off salt plume in Southern Ocean |
1002 |
|
|
IF ( .NOT. SaltPlumeSouthernOcean ) THEN |
1003 |
|
|
IF ( YC(I,J,bi,bj) .LT. 0.0 _d 0 ) |
1004 |
|
|
& saltPlumeFlux(i,j,bi,bj) = 0.0 _d 0 |
1005 |
|
|
ENDIF |
1006 |
|
|
|
1007 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
1008 |
gforget |
1.84 |
C tmpscal1 < 0 : m of sea ice that is melted |
1009 |
dimitri |
1.69 |
ELSE |
1010 |
|
|
saltFlux(I,J,bi,bj) = |
1011 |
gforget |
1.87 |
& HEFFM(I,J,bi,bj)/SEAICE_deltaTtherm |
1012 |
|
|
& *HSALT(I,J,bi,bj) |
1013 |
|
|
& *tmpscal1/tmpscal2 |
1014 |
dimitri |
1.69 |
#ifdef ALLOW_SALT_PLUME |
1015 |
|
|
saltPlumeFlux(i,j,bi,bj) = 0.0 _d 0 |
1016 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
1017 |
|
|
ENDIF |
1018 |
|
|
C update HSALT based on surface saltFlux |
1019 |
|
|
HSALT(I,J,bi,bj) = HSALT(I,J,bi,bj) + |
1020 |
|
|
& saltFlux(I,J,bi,bj) * SEAICE_deltaTtherm |
1021 |
|
|
saltFlux(I,J,bi,bj) = |
1022 |
|
|
& saltFlux(I,J,bi,bj) + saltFluxAdjust(I,J) |
1023 |
gforget |
1.87 |
#ifdef SEAICE_GROWTH_LEGACY |
1024 |
dimitri |
1.69 |
C set HSALT = 0 if HEFF = 0 and compute salt to dump into ocean |
1025 |
|
|
IF ( HEFF(I,J,bi,bj) .EQ. 0.0 ) THEN |
1026 |
|
|
saltFlux(I,J,bi,bj) = saltFlux(I,J,bi,bj) - |
1027 |
|
|
& HEFFM(I,J,bi,bj) * HSALT(I,J,bi,bj) / |
1028 |
|
|
& SEAICE_deltaTtherm |
1029 |
|
|
HSALT(I,J,bi,bj) = 0.0 _d 0 |
1030 |
|
|
#ifdef ALLOW_SALT_PLUME |
1031 |
|
|
saltPlumeFlux(i,j,bi,bj) = 0.0 _d 0 |
1032 |
|
|
#endif /* ALLOW_SALT_PLUME */ |
1033 |
|
|
ENDIF |
1034 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
1035 |
dimitri |
1.69 |
ENDDO |
1036 |
|
|
ENDDO |
1037 |
|
|
#endif /* SEAICE_SALINITY */ |
1038 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
1039 |
|
|
|
1040 |
gforget |
1.75 |
|
1041 |
|
|
|
1042 |
gforget |
1.88 |
c ======================================================================= |
1043 |
|
|
c =====LEGACY PART 5.5: treat pathological cases, then do flooding ====== |
1044 |
|
|
c ======================================================================= |
1045 |
dimitri |
1.69 |
|
1046 |
|
|
|
1047 |
gforget |
1.72 |
|
1048 |
gforget |
1.87 |
#ifdef SEAICE_GROWTH_LEGACY |
1049 |
|
|
|
1050 |
jmc |
1.91 |
C treat values of ice cover fraction oustide |
1051 |
gforget |
1.75 |
C the [0 1] range, and other such issues. |
1052 |
|
|
C =========================================== |
1053 |
|
|
|
1054 |
gforget |
1.89 |
cgf note: this part cannot be heat and water conserving |
1055 |
gforget |
1.76 |
|
1056 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
1057 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
1058 |
|
|
CADJ & key = iicekey, byte = isbyte |
1059 |
|
|
CADJ STORE heff(:,:,bi,bj) = comlev1_bibj, |
1060 |
|
|
CADJ & key = iicekey, byte = isbyte |
1061 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
1062 |
|
|
DO J=1,sNy |
1063 |
|
|
DO I=1,sNx |
1064 |
|
|
C NOW SET AREA(I,J,bi,bj)=0 WHERE NO ICE IS |
1065 |
|
|
AREA(I,J,bi,bj)=MIN(AREA(I,J,bi,bj) |
1066 |
|
|
& ,HEFF(I,J,bi,bj)/.0001 _d 0) |
1067 |
|
|
ENDDO |
1068 |
|
|
ENDDO |
1069 |
gforget |
1.75 |
|
1070 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
1071 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
1072 |
|
|
CADJ & key = iicekey, byte = isbyte |
1073 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
1074 |
|
|
DO J=1,sNy |
1075 |
|
|
DO I=1,sNx |
1076 |
|
|
C NOW TRUNCATE AREA |
1077 |
|
|
AREA(I,J,bi,bj)=MIN(ONE,AREA(I,J,bi,bj)) |
1078 |
|
|
ENDDO |
1079 |
|
|
ENDDO |
1080 |
gforget |
1.75 |
|
1081 |
dimitri |
1.69 |
#ifdef ALLOW_AUTODIFF_TAMC |
1082 |
|
|
CADJ STORE area(:,:,bi,bj) = comlev1_bibj, |
1083 |
|
|
CADJ & key = iicekey, byte = isbyte |
1084 |
|
|
CADJ STORE hsnow(:,:,bi,bj) = comlev1_bibj, |
1085 |
|
|
CADJ & key = iicekey, byte = isbyte |
1086 |
|
|
#endif /* ALLOW_AUTODIFF_TAMC */ |
1087 |
|
|
DO J=1,sNy |
1088 |
|
|
DO I=1,sNx |
1089 |
|
|
AREA(I,J,bi,bj) = MAX(ZERO,AREA(I,J,bi,bj)) |
1090 |
|
|
HSNOW(I,J,bi,bj) = MAX(ZERO,HSNOW(I,J,bi,bj)) |
1091 |
|
|
AREA(I,J,bi,bj) = AREA(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
1092 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
1093 |
|
|
#ifdef SEAICE_CAP_HEFF |
1094 |
mlosch |
1.97 |
C This is not energy conserving, but at least it conserves fresh water |
1095 |
mlosch |
1.100 |
d_HEFFbyCAPPING(I,J) = -MAX(HEFF(I,J,bi,bj)-MAX_HEFF,0. _d 0) |
1096 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj) + d_HEFFbyCAPPING(I,J) |
1097 |
dimitri |
1.69 |
#endif /* SEAICE_CAP_HEFF */ |
1098 |
|
|
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)*HEFFM(I,J,bi,bj) |
1099 |
|
|
ENDDO |
1100 |
|
|
ENDDO |
1101 |
|
|
|
1102 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1103 |
|
|
IF ( useDiagnostics ) THEN |
1104 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIthdgrh',myThid) ) THEN |
1105 |
|
|
DO J=1,sNy |
1106 |
|
|
DO I=1,sNx |
1107 |
gforget |
1.87 |
tmparr1(I,J) = (HEFF(I,J,bi,bj)-HEFFpreTH(I,J)) |
1108 |
dimitri |
1.69 |
& /SEAICE_deltaTtherm |
1109 |
|
|
ENDDO |
1110 |
|
|
ENDDO |
1111 |
gforget |
1.73 |
CALL DIAGNOSTICS_FILL(tmparr1,'SIthdgrh',0,1,3,bi,bj,myThid) |
1112 |
dimitri |
1.69 |
ENDIF |
1113 |
|
|
ENDIF |
1114 |
|
|
#endif /* ALLOW_DIAGNOSTICS */ |
1115 |
|
|
|
1116 |
gforget |
1.75 |
|
1117 |
|
|
C convert snow to ice if submerged. |
1118 |
|
|
C ================================= |
1119 |
|
|
|
1120 |
dimitri |
1.69 |
#ifdef ALLOW_SEAICE_FLOODING |
1121 |
|
|
IF ( SEAICEuseFlooding ) THEN |
1122 |
|
|
DO J=1,sNy |
1123 |
|
|
DO I=1,sNx |
1124 |
|
|
hDraft = (HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
1125 |
gforget |
1.85 |
& +HEFF(I,J,bi,bj)*SEAICE_rhoIce)/rhoConst |
1126 |
jmc |
1.86 |
tmpscal1 = MAX( 0. _d 0, hDraft - HEFF(I,J,bi,bj)) |
1127 |
gforget |
1.84 |
d_HEFFbyFLOODING(I,J)=tmpscal1 |
1128 |
|
|
HEFF(I,J,bi,bj) = HEFF(I,J,bi,bj)+d_HEFFbyFLOODING(I,J) |
1129 |
|
|
HSNOW(I,J,bi,bj) = HSNOW(I,J,bi,bj)- |
1130 |
jmc |
1.91 |
& d_HEFFbyFLOODING(I,J)*ICE2SNOW |
1131 |
dimitri |
1.69 |
ENDDO |
1132 |
|
|
ENDDO |
1133 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1134 |
|
|
IF ( useDiagnostics ) THEN |
1135 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIsnwice',myThid) ) THEN |
1136 |
|
|
DO J=1,sNy |
1137 |
|
|
DO I=1,sNx |
1138 |
gforget |
1.84 |
tmparr1(I,J) = d_HEFFbyFLOODING(I,J)/SEAICE_deltaTtherm |
1139 |
dimitri |
1.69 |
ENDDO |
1140 |
|
|
ENDDO |
1141 |
gforget |
1.73 |
CALL DIAGNOSTICS_FILL(tmparr1,'SIsnwice',0,1,3,bi,bj,myThid) |
1142 |
dimitri |
1.69 |
ENDIF |
1143 |
|
|
ENDIF |
1144 |
|
|
#endif /* ALLOW_DIAGNOSTICS */ |
1145 |
|
|
ENDIF |
1146 |
|
|
#endif /* ALLOW_SEAICE_FLOODING */ |
1147 |
|
|
|
1148 |
gforget |
1.87 |
#endif /* SEAICE_GROWTH_LEGACY */ |
1149 |
gforget |
1.75 |
|
1150 |
|
|
|
1151 |
gforget |
1.88 |
|
1152 |
|
|
c =================================================================== |
1153 |
|
|
c ===============PART 6: determine ice age increments================ |
1154 |
|
|
c =================================================================== |
1155 |
dimitri |
1.69 |
|
1156 |
gforget |
1.75 |
|
1157 |
|
|
|
1158 |
dimitri |
1.69 |
#ifdef SEAICE_AGE |
1159 |
|
|
# ifndef SEAICE_AGE_VOL |
1160 |
|
|
C Sources and sinks for sea ice age: |
1161 |
|
|
C assume that a) freezing: new ice fraction forms with zero age |
1162 |
|
|
C b) melting: ice fraction vanishes with current age |
1163 |
|
|
DO J=1,sNy |
1164 |
|
|
DO I=1,sNx |
1165 |
|
|
IF ( AREA(I,J,bi,bj) .GT. 0.15 ) THEN |
1166 |
gforget |
1.87 |
IF ( AREA(i,j,bi,bj) .LT. AREApreTH(i,j) ) THEN |
1167 |
dimitri |
1.69 |
C-- scale effective ice-age to account for ice-age sink associated with melting |
1168 |
|
|
IceAge(i,j,bi,bj) = IceAge(i,j,bi,bj) |
1169 |
gforget |
1.87 |
& *AREA(i,j,bi,bj)/AREApreTH(i,j) |
1170 |
dimitri |
1.69 |
ENDIF |
1171 |
|
|
C-- account for aging: |
1172 |
|
|
IceAge(i,j,bi,bj) = IceAge(i,j,bi,bj) |
1173 |
|
|
& + AREA(i,j,bi,bj) * SEAICE_deltaTtherm |
1174 |
|
|
ELSE |
1175 |
|
|
IceAge(i,j,bi,bj) = ZERO |
1176 |
|
|
ENDIF |
1177 |
|
|
ENDDO |
1178 |
|
|
ENDDO |
1179 |
|
|
# else /* ifdef SEAICE_AGE_VOL */ |
1180 |
|
|
C Sources and sinks for sea ice age: |
1181 |
|
|
C assume that a) freezing: new ice volume forms with zero age |
1182 |
|
|
C b) melting: ice volume vanishes with current age |
1183 |
|
|
DO J=1,sNy |
1184 |
|
|
DO I=1,sNx |
1185 |
|
|
C-- compute actual age from effective age: |
1186 |
gforget |
1.87 |
IF (AREApreTH(i,j).GT.0. _d 0) THEN |
1187 |
|
|
tmpscal1=IceAge(i,j,bi,bj)/AREApreTH(i,j) |
1188 |
dimitri |
1.69 |
ELSE |
1189 |
gforget |
1.87 |
tmpscal1=0. _d 0 |
1190 |
jmc |
1.91 |
ENDIF |
1191 |
gforget |
1.87 |
IF ( (HEFFpreTH(i,j).LT.HEFF(i,j,bi,bj)).AND. |
1192 |
dimitri |
1.69 |
& (AREA(i,j,bi,bj).GT.0.15) ) THEN |
1193 |
gforget |
1.87 |
tmpscal2=tmpscal1*HEFFpreTH(i,j)/ |
1194 |
dimitri |
1.69 |
& HEFF(i,j,bi,bj)+SEAICE_deltaTtherm |
1195 |
|
|
ELSEIF (AREA(i,j,bi,bj).LE.0.15) THEN |
1196 |
gforget |
1.87 |
tmpscal2=0. _d 0 |
1197 |
dimitri |
1.69 |
ELSE |
1198 |
gforget |
1.87 |
tmpscal2=tmpscal1+SEAICE_deltaTtherm |
1199 |
dimitri |
1.69 |
ENDIF |
1200 |
|
|
C-- re-scale to effective age: |
1201 |
gforget |
1.87 |
IceAge(i,j,bi,bj) = tmpscal2*AREA(i,j,bi,bj) |
1202 |
dimitri |
1.69 |
ENDDO |
1203 |
|
|
ENDDO |
1204 |
|
|
# endif /* SEAICE_AGE_VOL */ |
1205 |
|
|
#endif /* SEAICE_AGE */ |
1206 |
|
|
|
1207 |
gforget |
1.88 |
|
1208 |
|
|
|
1209 |
|
|
c =================================================================== |
1210 |
|
|
c ==============PART 7: determine ocean model forcing================ |
1211 |
|
|
c =================================================================== |
1212 |
|
|
|
1213 |
|
|
|
1214 |
|
|
|
1215 |
jmc |
1.91 |
C compute net heat flux leaving/entering the ocean, |
1216 |
gforget |
1.88 |
C accounting for the part used in melt/freeze processes |
1217 |
|
|
C ===================================================== |
1218 |
|
|
|
1219 |
|
|
DO J=1,sNy |
1220 |
|
|
DO I=1,sNx |
1221 |
gforget |
1.89 |
QNET(I,J,bi,bj) = r_QbyATM_cover(I,J) + r_QbyATM_open(I,J) |
1222 |
jmc |
1.91 |
& - ( d_HEFFbyOCNonICE(I,J) + |
1223 |
gforget |
1.88 |
& d_HSNWbyOCNonSNW(I,J)/ICE2SNOW + |
1224 |
jmc |
1.91 |
& d_HEFFbyNEG(I,J) + |
1225 |
gforget |
1.88 |
& d_HSNWbyNEG(I,J)/ICE2SNOW ) |
1226 |
|
|
& * maskC(I,J,kSurface,bi,bj) |
1227 |
|
|
QSW(I,J,bi,bj) = a_QSWbyATM_cover(I,J) + a_QSWbyATM_open(I,J) |
1228 |
|
|
ENDDO |
1229 |
|
|
ENDDO |
1230 |
|
|
|
1231 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1232 |
|
|
IF ( useDiagnostics ) THEN |
1233 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIqneto ',myThid) ) THEN |
1234 |
|
|
DO J=1,sNy |
1235 |
|
|
DO I=1,sNx |
1236 |
gforget |
1.96 |
DIAGarray(I,J) = r_QbyATM_open(I,J) * convertHI2Q |
1237 |
gforget |
1.88 |
ENDDO |
1238 |
|
|
ENDDO |
1239 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIqneto ',0,1,3,bi,bj,myThid) |
1240 |
|
|
ENDIF |
1241 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIqneti ',myThid) ) THEN |
1242 |
|
|
DO J=1,sNy |
1243 |
|
|
DO I=1,sNx |
1244 |
gforget |
1.96 |
DIAGarray(I,J) = r_QbyATM_cover(I,J) * convertHI2Q |
1245 |
gforget |
1.88 |
ENDDO |
1246 |
|
|
ENDDO |
1247 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIqneti ',0,1,3,bi,bj,myThid) |
1248 |
|
|
ENDIF |
1249 |
|
|
ENDIF |
1250 |
|
|
#endif |
1251 |
|
|
|
1252 |
gforget |
1.83 |
c switch heat fluxes from 'effective' ice meters to W/m2 |
1253 |
gforget |
1.88 |
C ====================================================== |
1254 |
gforget |
1.83 |
|
1255 |
|
|
DO J=1,sNy |
1256 |
|
|
DO I=1,sNx |
1257 |
|
|
QNET(I,J,bi,bj) = QNET(I,J,bi,bj)*convertHI2Q |
1258 |
|
|
QSW(I,J,bi,bj) = QSW(I,J,bi,bj)*convertHI2Q |
1259 |
|
|
ENDDO |
1260 |
|
|
ENDDO |
1261 |
jmc |
1.91 |
|
1262 |
|
|
C compute net fresh water flux leaving/entering |
1263 |
gforget |
1.88 |
C the ocean, accounting for fresh/salt water stocks. |
1264 |
|
|
C ================================================== |
1265 |
|
|
|
1266 |
|
|
#ifdef ALLOW_ATM_TEMP |
1267 |
|
|
DO J=1,sNy |
1268 |
|
|
DO I=1,sNx |
1269 |
|
|
tmpscal1= d_HSNWbyATMonSNW(I,J)/ICE2SNOW |
1270 |
|
|
& +d_HFRWbyRAIN(I,J) |
1271 |
|
|
& +d_HSNWbyOCNonSNW(I,J)/ICE2SNOW |
1272 |
|
|
& +d_HEFFbyOCNonICE(I,J) |
1273 |
|
|
& +d_HEFFbyATMonOCN(I,J) |
1274 |
jmc |
1.91 |
& +d_HEFFbyNEG(I,J) |
1275 |
gforget |
1.88 |
& +d_HSNWbyNEG(I,J)/ICE2SNOW |
1276 |
mlosch |
1.100 |
#ifdef SEAICE_CAP_HEFF |
1277 |
|
|
& +d_HEFFbyCAPPING(I,J) |
1278 |
|
|
#endif /* SEAICE_CAP_HEFF */ |
1279 |
gforget |
1.88 |
EmPmR(I,J,bi,bj) = maskC(I,J,kSurface,bi,bj)*( |
1280 |
|
|
& ( EVAP(I,J,bi,bj)-PRECIP(I,J,bi,bj) ) |
1281 |
|
|
& * ( ONE - AREApreTH(I,J) ) |
1282 |
|
|
#ifdef ALLOW_RUNOFF |
1283 |
|
|
& - RUNOFF(I,J,bi,bj) |
1284 |
|
|
#endif |
1285 |
|
|
& + tmpscal1*convertHI2PRECIP |
1286 |
|
|
& )*rhoConstFresh |
1287 |
|
|
ENDDO |
1288 |
|
|
ENDDO |
1289 |
|
|
|
1290 |
|
|
#ifdef ALLOW_DIAGNOSTICS |
1291 |
|
|
IF ( useDiagnostics ) THEN |
1292 |
|
|
IF ( DIAGNOSTICS_IS_ON('SIatmFW ',myThid) ) THEN |
1293 |
|
|
DO J=1,sNy |
1294 |
|
|
DO I=1,sNx |
1295 |
|
|
DIAGarray(I,J) = maskC(I,J,kSurface,bi,bj)*( |
1296 |
|
|
& PRECIP(I,J,bi,bj) |
1297 |
|
|
& - EVAP(I,J,bi,bj) |
1298 |
|
|
& *( ONE - AREApreTH(I,J) ) |
1299 |
|
|
& + RUNOFF(I,J,bi,bj) |
1300 |
|
|
& )*rhoConstFresh |
1301 |
|
|
ENDDO |
1302 |
|
|
ENDDO |
1303 |
|
|
CALL DIAGNOSTICS_FILL(DIAGarray,'SIatmFW ',0,1,3,bi,bj,myThid) |
1304 |
|
|
ENDIF |
1305 |
|
|
ENDIF |
1306 |
|
|
#endif |
1307 |
|
|
#ifdef ALLOW_MEAN_SFLUX_COST_CONTRIBUTION |
1308 |
|
|
DO J=1,sNy |
1309 |
|
|
DO I=1,sNx |
1310 |
|
|
frWtrAtm(I,J,bi,bj) = maskC(I,J,kSurface,bi,bj)*( |
1311 |
|
|
& PRECIP(I,J,bi,bj) |
1312 |
|
|
& - EVAP(I,J,bi,bj) |
1313 |
|
|
& *( ONE - AREApreTH(I,J) ) |
1314 |
|
|
& + RUNOFF(I,J,bi,bj) |
1315 |
|
|
& )*rhoConstFresh |
1316 |
|
|
ENDDO |
1317 |
|
|
ENDDO |
1318 |
|
|
#endif |
1319 |
|
|
#endif /* ALLOW_ATM_TEMP */ |
1320 |
|
|
|
1321 |
gforget |
1.96 |
#ifdef SEAICE_DEBUG |
1322 |
|
|
CALL PLOT_FIELD_XYRL( QSW,'Current QSW ', myIter, myThid ) |
1323 |
|
|
CALL PLOT_FIELD_XYRL( QNET,'Current QNET ', myIter, myThid ) |
1324 |
|
|
CALL PLOT_FIELD_XYRL( EmPmR,'Current EmPmR ', myIter, myThid ) |
1325 |
|
|
#endif /* SEAICE_DEBUG */ |
1326 |
gforget |
1.88 |
|
1327 |
|
|
C Sea Ice Load on the sea surface. |
1328 |
|
|
C ================================= |
1329 |
|
|
|
1330 |
|
|
IF ( useRealFreshWaterFlux ) THEN |
1331 |
|
|
DO J=1,sNy |
1332 |
|
|
DO I=1,sNx |
1333 |
gforget |
1.92 |
#ifdef SEAICE_CAP_ICELOAD |
1334 |
|
|
tmpscal1 = HEFF(I,J,bi,bj)*SEAICE_rhoIce |
1335 |
|
|
& + HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
1336 |
jmc |
1.94 |
tmpscal2 = min(tmpscal1,heffTooHeavy*rhoConst) |
1337 |
|
|
#else |
1338 |
gforget |
1.92 |
tmpscal2 = HEFF(I,J,bi,bj)*SEAICE_rhoIce |
1339 |
|
|
& + HSNOW(I,J,bi,bj)*SEAICE_rhoSnow |
1340 |
|
|
#endif |
1341 |
|
|
sIceLoad(i,j,bi,bj) = tmpscal2 |
1342 |
gforget |
1.88 |
ENDDO |
1343 |
|
|
ENDDO |
1344 |
|
|
ENDIF |
1345 |
|
|
|
1346 |
|
|
|
1347 |
|
|
C close bi,bj loops |
1348 |
dimitri |
1.69 |
ENDDO |
1349 |
|
|
ENDDO |
1350 |
|
|
|
1351 |
|
|
RETURN |
1352 |
|
|
END |