Validation of sea ice concentration

Bulletin date: 2012-02-29

Model vs. observations, sea ice class contingency tables

Date: 2012-02-23:

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 13201 7478 725 881 294 84 6 0
OW 0 86 200 503 286 94 25 0
VODI 0 4 129 390 499 327 92 0
ODI 0 0 8 70 192 438 290 2
CDI 0 0 0 34 128 516 721 38
VCDI 0 0 0 7 41 872 4773 3985
...date precedes bulletin

Date: 2012-02-27:

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 13555 6907 554 357 191 47 16 0
OW 0 64 231 251 181 101 16 0
VODI 0 12 99 291 547 378 61 0
ODI 0 4 40 167 439 711 131 0
CDI 0 0 3 67 240 1107 469 22
VCDI 0 0 0 21 109 992 5139 3899
...date precedes bulletin

Date: 2012-02-29:

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 13436 6968 962 481 122 19 14 0
OW 0 60 89 257 283 72 21 0
VODI 0 11 34 231 651 384 82 0
ODI 0 0 5 73 318 709 348 0
CDI 0 0 2 23 253 678 1082 4
VCDI 0 0 1 8 91 679 5141 3827
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13436 6809 830 340 271 71 85 0
OW 0 57 42 78 81 38 26 0
VODI 0 53 56 107 190 145 79 0
ODI 0 32 38 134 161 281 176 0
CDI 0 77 76 152 467 416 534 3
VCDI 0 11 51 262 548 1590 5788 3828

Date: 2012-03-04:

Best estimate Forecast
...observations not yet available ...observations not yet available

Date: 2012-03-06:

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 13714 7008 446 252 101 67 20 0
OW 0 114 144 175 127 147 17 0
VODI 0 24 181 162 189 330 42 0
ODI 0 0 72 110 239 744 67 0
CDI 0 0 28 71 183 1037 389 30
VCDI 0 0 5 51 123 1056 5882 4072
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13714 6933 389 289 196 321 51 0
OW 0 84 68 54 33 76 14 0
VODI 0 65 99 100 78 127 31 0
ODI 0 18 63 112 113 226 37 0
CDI 0 13 55 92 164 618 200 31
VCDI 0 33 202 174 378 2013 6084 4071

Date: 2012-03-08:

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 14058 7411 610 369 191 24 13 0
OW 0 99 124 168 205 56 22 0
VODI 0 9 47 166 283 172 92 0
ODI 0 0 3 61 267 595 279 1
CDI 0 0 1 52 158 558 1024 90
VCDI 0 0 0 10 58 447 5057 4639
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14058 6987 454 268 266 62 83 0
OW 0 137 37 33 61 30 30 0
VODI 0 141 64 62 87 59 50 0
ODI 0 72 51 79 119 107 73 0
CDI 0 46 64 126 196 362 253 88
VCDI 0 136 115 258 433 1232 5998 4642


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