Validation of sea ice concentration

Bulletin date: 2013-01-03

Model vs. observations, sea ice class contingency tables

Date: 2012-12-28:

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 14857 6579 747 377 111 79 0 0
OW 0 162 251 202 154 73 0 0
VODI 0 112 215 270 183 174 5 0
ODI 0 11 91 252 196 216 19 6
CDI 0 9 54 99 379 360 183 55
VCDI 0 7 99 177 542 1528 4620 3965
...date precedes bulletin

Date: 2013-01-01:

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

Date: 2013-01-03:

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 15421 6486 785 338 72 0 0 0
OW 0 113 304 310 234 23 1 0
VODI 0 43 199 334 292 96 9 0
ODI 0 24 111 187 275 194 51 1
CDI 0 9 134 249 314 415 305 37
VCDI 0 0 24 176 240 1603 4446 3564
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 15421 6596 1130 684 360 65 4 0
OW 0 26 88 146 97 24 2 0
VODI 0 26 85 202 141 57 9 0
ODI 0 15 68 112 195 151 49 1
CDI 0 11 157 192 293 321 304 37
VCDI 0 1 29 258 341 1713 4444 3564

Date: 2013-01-07:

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 14266 7687 961 663 135 12 0 0
OW 0 160 128 351 253 44 2 0
VODI 0 94 174 547 514 203 13 0
ODI 0 13 62 164 372 297 64 0
CDI 0 2 17 64 223 475 467 17
VCDI 0 0 1 42 116 667 5297 2852
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14266 7536 855 772 366 101 33 0
OW 0 89 60 128 93 39 7 0
VODI 0 83 44 189 129 86 12 0
ODI 0 63 72 108 152 120 32 1
CDI 0 48 69 74 247 337 321 22
VCDI 0 137 243 560 626 1015 5438 2846

Date: 2013-01-09:

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 14325 6994 1036 528 184 17 0 0
OW 0 119 276 321 281 28 0 0
VODI 0 93 134 257 510 214 0 0
ODI 0 38 174 173 384 348 82 0
CDI 0 5 132 189 185 544 408 10
VCDI 0 0 14 143 300 830 5337 2806
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14325 6957 1052 667 498 176 23 0
OW 0 41 101 100 143 60 2 0
VODI 0 60 76 111 180 93 13 0
ODI 0 40 77 94 153 147 43 0
CDI 0 44 61 94 178 356 241 12
VCDI 0 107 399 545 692 1149 5505 2804

Date: 2013-01-11:

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 14175 6715 1032 541 155 9 0 0
OW 0 104 198 325 205 23 2 0
VODI 0 18 220 423 423 107 7 0
ODI 0 3 65 194 366 337 43 0
CDI 0 0 12 103 379 750 489 37
VCDI 0 0 5 37 353 1566 4920 3078
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14175 6740 999 841 434 99 1 0
OW 0 37 91 104 105 38 2 0
VODI 0 42 100 122 157 86 2 0
ODI 0 18 99 110 151 134 29 4
CDI 0 2 84 200 233 437 238 61
VCDI 0 1 159 246 801 1998 5189 3050


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