| 1 |
C $Header: /u/gcmpack/MITgcm/pkg/seaice/cost_ice.F,v 1.2 2005/08/25 16:19:39 heimbach Exp $ |
| 2 |
|
| 3 |
#include "SEAICE_OPTIONS.h" |
| 4 |
|
| 5 |
subroutine cost_ice_test( mytime, myiter, mythid ) |
| 6 |
|
| 7 |
c ================================================================== |
| 8 |
c SUBROUTINE cost_ice_test |
| 9 |
c ================================================================== |
| 10 |
c |
| 11 |
c o Compute sea-ice cost function. The following options can |
| 12 |
c be selected with data.cost variable cost_ice_flag: |
| 13 |
c |
| 14 |
c cost_ice_flag = 1 |
| 15 |
c - compute mean sea-ice volume |
| 16 |
c costIceStart < mytime < costIceEnd |
| 17 |
c |
| 18 |
c cost_ice_flag = 2 |
| 19 |
c - compute mean sea-ice area |
| 20 |
c costIceStart < mytime < costIceEnd |
| 21 |
c |
| 22 |
c cost_ice_flag = 3 |
| 23 |
c - heat content of top level plus latent heat of sea-ice |
| 24 |
c costIceStart < mytime < costIceEnd |
| 25 |
c |
| 26 |
c cost_ice_flag = 4 |
| 27 |
c - heat content of top level |
| 28 |
c costIceStart < mytime < costIceEnd |
| 29 |
c |
| 30 |
c cost_ice_flag = 5 |
| 31 |
c - heat content of top level plus sea-ice plus latent heat of snow |
| 32 |
c costIceStart < mytime < costIceEnd |
| 33 |
c |
| 34 |
c cost_ice_flag = 6 |
| 35 |
c - quadratic cost function measuring difference between pkg/seaice |
| 36 |
c AREA variable and simulated sea-ice measurements at every time |
| 37 |
c step. |
| 38 |
c |
| 39 |
c ================================================================== |
| 40 |
c |
| 41 |
c started: menemenlis@jpl.nasa.gov 26-Feb-2003 |
| 42 |
c |
| 43 |
c ================================================================== |
| 44 |
c SUBROUTINE cost_ice_test |
| 45 |
c ================================================================== |
| 46 |
|
| 47 |
implicit none |
| 48 |
|
| 49 |
c == global variables == |
| 50 |
#ifdef ALLOW_COST_ICE |
| 51 |
#include "EEPARAMS.h" |
| 52 |
#include "SIZE.h" |
| 53 |
#include "GRID.h" |
| 54 |
#include "PARAMS.h" |
| 55 |
#include "SEAICE_COST.h" |
| 56 |
#include "SEAICE.h" |
| 57 |
#include "DYNVARS.h" |
| 58 |
#include "cost.h" |
| 59 |
#endif /* ALLOW_COST_ICE */ |
| 60 |
|
| 61 |
c == routine arguments == |
| 62 |
|
| 63 |
_RL mytime |
| 64 |
integer myiter |
| 65 |
integer mythid |
| 66 |
|
| 67 |
#ifdef ALLOW_COST_ICE |
| 68 |
|
| 69 |
c == local variables == |
| 70 |
|
| 71 |
c msgBuf - Informational/error message buffer |
| 72 |
CHARACTER*(MAX_LEN_MBUF) msgBuf |
| 73 |
integer bi,bj,i,j |
| 74 |
_RL tempVar |
| 75 |
|
| 76 |
c == external functions == |
| 77 |
|
| 78 |
integer ilnblnk |
| 79 |
external ilnblnk |
| 80 |
|
| 81 |
c == end of interface == |
| 82 |
|
| 83 |
if ( myTime .GT. (endTime - lastinterval) ) then |
| 84 |
tempVar = 1. / |
| 85 |
& ( ( 1. + min(endTime-startTime,lastinterval) ) |
| 86 |
& / deltaTClock ) |
| 87 |
|
| 88 |
cph( |
| 89 |
c print *, 'ph-ice B ', myiter, theta(18,24,1,1,1), |
| 90 |
c & area(18,24,1,1,1), heff(18,24,1,1,1) |
| 91 |
cph) |
| 92 |
if ( cost_ice_flag .eq. 1 ) then |
| 93 |
c sea-ice volume |
| 94 |
do bj=myByLo(myThid),myByHi(myThid) |
| 95 |
do bi=myBxLo(myThid),myBxHi(myThid) |
| 96 |
do j = 1,sny |
| 97 |
do i = 1,snx |
| 98 |
objf_ice(bi,bj) = objf_ice(bi,bj) + |
| 99 |
& tempVar * rA(i,j,bi,bj) * HEFF(i,j,1,bi,bj) |
| 100 |
enddo |
| 101 |
enddo |
| 102 |
enddo |
| 103 |
enddo |
| 104 |
|
| 105 |
elseif ( cost_ice_flag .eq. 2 ) then |
| 106 |
c sea-ice area |
| 107 |
do bj=myByLo(myThid),myByHi(myThid) |
| 108 |
do bi=myBxLo(myThid),myBxHi(myThid) |
| 109 |
do j = 1,sny |
| 110 |
do i = 1,snx |
| 111 |
objf_ice(bi,bj) = objf_ice(bi,bj) + |
| 112 |
& tempVar * rA(i,j,bi,bj) * AREA(i,j,1,bi,bj) |
| 113 |
enddo |
| 114 |
enddo |
| 115 |
enddo |
| 116 |
enddo |
| 117 |
|
| 118 |
c heat content of top level: |
| 119 |
c theta * delZ * (sea water heat capacity = 3996 J/kg/K) |
| 120 |
c * (density of sea-water = 1026 kg/m^3) |
| 121 |
c |
| 122 |
c heat content of sea-ice: |
| 123 |
c tice * heff * (sea ice heat capacity = 2090 J/kg/K) |
| 124 |
c * (density of sea-ice = 910 kg/m^3) |
| 125 |
c |
| 126 |
c note: to remove mass contribution to heat content, |
| 127 |
c which is not properly accounted for by volume converving |
| 128 |
c ocean model, theta and tice are referenced to freezing |
| 129 |
c temperature of sea-ice, here -1.96 deg C |
| 130 |
c |
| 131 |
c latent heat content of sea-ice: |
| 132 |
c - heff * (latent heat of fusion = 334000 J/kg) |
| 133 |
c * (density of sea-ice = 910 kg/m^3) |
| 134 |
c |
| 135 |
c latent heat content of snow: |
| 136 |
c - hsnow * (latent heat of fusion = 334000 J/kg) |
| 137 |
c * (density of snow = 330 kg/m^3) |
| 138 |
|
| 139 |
elseif ( cost_ice_flag .eq. 3 ) then |
| 140 |
c heat content of top level plus latent heat of sea-ice |
| 141 |
do bj=myByLo(myThid),myByHi(myThid) |
| 142 |
do bi=myBxLo(myThid),myBxHi(myThid) |
| 143 |
do j = 1,sny |
| 144 |
do i = 1,snx |
| 145 |
objf_ice(bi,bj) = objf_ice(bi,bj) + |
| 146 |
& tempVar * rA(i,j,bi,bj) * ( |
| 147 |
& (THETA(i,j,1,bi,bj) + 1.96 ) * |
| 148 |
& drF(1) * 3996 * 1026 - |
| 149 |
& HEFF(i,j,1,bi,bj) * 334000 * 910 ) |
| 150 |
enddo |
| 151 |
enddo |
| 152 |
enddo |
| 153 |
enddo |
| 154 |
|
| 155 |
elseif ( cost_ice_flag .eq. 4 ) then |
| 156 |
c heat content of top level |
| 157 |
do bj=myByLo(myThid),myByHi(myThid) |
| 158 |
do bi=myBxLo(myThid),myBxHi(myThid) |
| 159 |
do j = 1,sny |
| 160 |
do i = 1,snx |
| 161 |
objf_ice(bi,bj) = objf_ice(bi,bj) + |
| 162 |
& tempVar * rA(i,j,bi,bj) * ( |
| 163 |
& (THETA(i,j,1,bi,bj) + 1.96 ) * |
| 164 |
& drF(1) * 3996 * 1026 ) |
| 165 |
enddo |
| 166 |
enddo |
| 167 |
enddo |
| 168 |
enddo |
| 169 |
|
| 170 |
elseif ( cost_ice_flag .eq. 5 ) then |
| 171 |
c heat content of top level plus sea-ice plus latent heat of snow |
| 172 |
do bj=myByLo(myThid),myByHi(myThid) |
| 173 |
do bi=myBxLo(myThid),myBxHi(myThid) |
| 174 |
do j = 1,sny |
| 175 |
do i = 1,snx |
| 176 |
objf_ice(bi,bj) = objf_ice(bi,bj) + |
| 177 |
& tempVar * rA(i,j,bi,bj) * ( |
| 178 |
& (THETA(i,j,1,bi,bj) + 1.96 ) * |
| 179 |
& drF(1) * 3996 * 1026 + |
| 180 |
& (TICE(i,j,bi,bj) - 273.15 + 1.96 ) * |
| 181 |
& HEFF(I,J,1,bi,bj) * 2090 * 910 - |
| 182 |
& HEFF(i,j,1,bi,bj) * 334000 * 910 - |
| 183 |
& HSNOW(I,J,bi,bj) * 334000 * 330 ) |
| 184 |
enddo |
| 185 |
enddo |
| 186 |
enddo |
| 187 |
enddo |
| 188 |
|
| 189 |
elseif ( cost_ice_flag .eq. 6 ) then |
| 190 |
c Qadratic cost function measuring difference between pkg/seaice |
| 191 |
c AREA variable and simulated sea-ice measurements at every time |
| 192 |
c step. For time being no measurements are read-in. It is |
| 193 |
c assumed that measurements are AREA=0.5 at all times everywhere. |
| 194 |
do bj=myByLo(myThid),myByHi(myThid) |
| 195 |
do bi=myBxLo(myThid),myBxHi(myThid) |
| 196 |
do j = 1,sny |
| 197 |
do i = 1,snx |
| 198 |
objf_ice(bi,bj) = objf_ice(bi,bj) + |
| 199 |
& ( AREA(i,j,1,bi,bj) - 0.5 ) * |
| 200 |
& ( AREA(i,j,1,bi,bj) - 0.5 ) |
| 201 |
enddo |
| 202 |
enddo |
| 203 |
enddo |
| 204 |
enddo |
| 205 |
|
| 206 |
else |
| 207 |
WRITE(msgBuf,'(A)') |
| 208 |
& 'COST_ICE: invalid cost_ice_flag' |
| 209 |
CALL PRINT_MESSAGE( msgBuf, standardMessageUnit, |
| 210 |
& SQUEEZE_RIGHT , myThid ) |
| 211 |
STOP 'ABNORMAL END: S/R COST_ICE' |
| 212 |
endif |
| 213 |
endif |
| 214 |
|
| 215 |
#endif /* ALLOW_COST_ICE */ |
| 216 |
|
| 217 |
end |
Parent Directory
| 
Revision Log
| 
Revision Graph