Validation of sea ice concentration

Bulletin date: 2015-03-12

Model vs. observations, sea ice class contingency tables

Date: 2015-03-06:

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 13717 5674 478 133 34 13 10 0
OW 0 225 252 182 86 36 32 0
VODI 0 117 194 194 133 77 92 0
ODI 0 54 87 113 120 84 180 0
CDI 0 45 85 100 134 162 484 0
VCDI 0 34 184 299 287 361 8396 4179
...date precedes bulletin

Date: 2015-03-10:

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 14300 5807 523 184 22 7 9 0
OW 0 267 237 316 59 30 20 0
VODI 0 87 204 259 123 75 55 0
ODI 0 71 167 193 113 103 143 2
CDI 0 12 109 255 209 202 530 7
VCDI 0 0 31 265 330 445 7895 3401
...date precedes bulletin

Date: 2015-03-12:

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 14105 5634 422 96 5 0 0 0
OW 0 336 315 200 72 19 24 0
VODI 0 142 261 339 170 49 32 0
ODI 0 51 124 147 129 89 153 0
CDI 0 9 116 183 181 172 562 6
VCDI 0 0 35 225 436 601 8128 3499
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14105 5618 446 116 6 1 2 0
OW 0 342 300 202 69 17 20 0
VODI 0 141 265 330 185 51 36 0
ODI 0 55 104 141 122 105 161 0
CDI 0 15 120 176 189 161 513 5
VCDI 0 1 38 225 422 595 8167 3500

Date: 2015-03-16:

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 14574 6028 334 180 69 27 1 0
OW 0 227 160 188 98 96 25 0
VODI 0 105 134 123 120 158 140 0
ODI 0 54 83 118 90 191 251 0
CDI 0 35 37 88 131 319 1045 20
VCDI 0 0 14 62 193 640 6145 4764
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14574 5517 205 93 25 7 0 0
OW 0 422 163 109 53 34 6 0
VODI 0 205 150 203 131 158 71 0
ODI 0 91 75 110 103 141 178 0
CDI 0 90 90 100 93 249 610 27
VCDI 0 124 79 144 296 842 6742 4757

Date: 2015-03-18:

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 14334 5913 504 143 29 6 0 0
OW 0 165 269 158 65 21 0 0
VODI 0 75 196 253 162 82 9 0
ODI 0 29 91 143 142 155 57 0
CDI 0 7 84 215 254 329 360 12
VCDI 0 0 22 188 561 2198 5808 4028
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14334 5263 356 95 20 5 0 0
OW 0 411 187 93 41 20 0 0
VODI 0 284 259 191 95 48 20 0
ODI 0 102 105 181 124 77 48 0
CDI 0 81 130 178 239 282 248 17
VCDI 0 48 129 362 694 2359 5918 4023

Date: 2015-03-20:

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 13257 6054 811 186 39 5 0 0
OW 0 132 276 179 71 9 1 0
VODI 0 40 161 224 194 41 29 0
ODI 0 15 85 96 210 98 54 1
CDI 0 7 94 130 207 245 215 15
VCDI 0 0 49 123 372 1131 7492 4719
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13257 5664 628 153 26 1 0 0
OW 0 242 131 123 73 10 2 0
VODI 0 227 336 185 176 61 12 0
ODI 0 44 118 133 147 85 52 2
CDI 0 35 118 124 209 255 189 12
VCDI 0 36 145 220 462 1117 7536 4721


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