Validation of sea ice concentration

Bulletin date: 2012-08-02

Model vs. observations, sea ice class contingency tables

Date: 2012-07-27:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 21660 6188 802 848 194 13 5 0
OW 0 23 61 244 370 56 15 0
VODI 0 0 4 149 384 317 264 0
ODI 0 0 0 37 200 287 1249 6
CDI 0 0 0 3 16 46 1191 1662
VCDI 0 0 0 0 0 1 52 1072
...date precedes bulletin

Date: 2012-07-31:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 22056 5627 674 1241 348 16 6 0
OW 0 4 38 271 236 41 20 0
VODI 0 1 4 135 400 274 178 0
ODI 0 0 0 11 88 277 1237 0
CDI 0 0 0 2 6 2 1045 2588
VCDI 0 0 0 0 0 1 17 575
...date precedes bulletin

Date: 2012-08-02:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 22373 5201 777 1320 271 23 2 0
OW 0 1 23 292 214 66 14 0
VODI 0 0 5 130 517 277 177 0
ODI 0 0 0 13 88 370 1078 4
CDI 0 0 0 1 3 19 1142 2372
VCDI 0 0 0 0 0 0 21 625
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 22373 5201 797 1636 753 175 101 0
OW 0 0 1 55 92 89 48 0
VODI 0 1 4 51 152 134 117 0
ODI 0 0 3 12 94 277 862 7
CDI 0 0 0 2 2 80 1039 1973
VCDI 0 0 0 0 0 0 267 1021

Date: 2012-08-06:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24163 4333 274 1088 270 18 2 0
OW 0 11 36 140 286 35 21 0
VODI 0 2 1 83 402 186 84 0
ODI 0 0 0 29 170 375 987 0
CDI 0 0 0 1 13 66 888 1031
VCDI 0 0 0 0 0 0 421 2003
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24163 4346 304 1250 868 139 113 0
OW 0 0 3 31 71 77 46 0
VODI 0 0 4 44 130 170 294 0
ODI 0 0 0 13 62 220 734 10
CDI 0 0 0 3 10 74 1088 2289
VCDI 0 0 0 0 0 0 128 735

Date: 2012-08-08:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 23999 4314 442 1030 438 31 3 0
OW 0 11 29 124 296 29 22 0
VODI 0 0 4 99 447 181 76 0
ODI 0 0 0 23 207 557 551 0
CDI 0 0 0 10 17 72 1394 957
VCDI 0 0 0 0 2 1 270 1783
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 23999 4324 465 1190 994 130 79 0
OW 0 1 7 31 120 95 25 0
VODI 0 0 3 32 178 205 218 0
ODI 0 0 0 17 92 336 508 13
CDI 0 0 0 16 23 105 1410 1726
VCDI 0 0 0 0 0 0 76 1001

Date: 2012-08-10:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24055 4320 670 745 488 24 0 0
OW 0 3 47 131 269 52 29 0
VODI 0 0 0 99 373 376 79 0
ODI 0 0 0 57 177 416 540 0
CDI 0 0 0 7 3 35 1545 1446
VCDI 0 0 0 0 0 0 88 1345
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24055 4317 711 905 950 172 78 0
OW 0 2 3 35 116 116 23 0
VODI 0 4 3 48 156 235 189 0
ODI 0 0 0 27 74 294 499 15
CDI 0 0 0 24 14 86 1389 1570
VCDI 0 0 0 0 0 0 103 1206


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