Validation of sea ice concentration

Bulletin date: 2018-02-08

Model vs. observations, sea ice class contingency tables

Date: 2018-02-02:

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 14169 6682 1033 456 253 151 13 0
OW 0 9 123 147 95 144 36 0
VODI 0 4 54 168 104 222 108 1
ODI 0 1 15 55 103 275 180 4
CDI 0 0 7 52 86 304 469 1
VCDI 0 0 0 21 99 706 6863 4946
...date precedes bulletin

Date: 2018-02-06:

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 14178 6961 1392 477 151 58 7 0
OW 0 51 152 193 97 62 10 0
VODI 0 9 138 182 177 130 37 0
ODI 0 0 72 144 210 242 165 0
CDI 0 0 28 124 193 372 568 11
VCDI 0 0 21 148 249 832 6855 3463
...date precedes bulletin

Date: 2018-02-08:

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 14481 7092 1121 317 103 29 1 0
OW 0 100 201 179 82 29 10 0
VODI 0 58 124 206 118 67 64 0
ODI 0 22 71 123 150 168 249 1
CDI 0 13 44 140 219 297 544 22
VCDI 0 5 88 133 342 729 6680 3737
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14481 7101 1144 332 105 30 5 0
OW 0 98 182 160 77 20 6 0
VODI 0 52 125 197 122 69 62 0
ODI 0 21 69 142 140 147 230 1
CDI 0 13 40 140 193 305 482 21
VCDI 0 5 89 127 377 748 6763 3738

Date: 2018-02-12:

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 14478 7375 1438 306 139 33 2 0
OW 0 46 161 157 151 52 12 0
VODI 0 33 132 319 277 126 41 0
ODI 0 31 47 171 333 295 204 0
CDI 0 25 29 114 253 428 575 2
VCDI 1 7 15 65 162 707 6735 2682
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14478 7236 1096 240 149 41 1 0
OW 0 105 267 97 86 30 9 0
VODI 0 64 201 218 147 61 31 0
ODI 0 34 126 191 223 121 107 0
CDI 0 19 67 165 279 332 413 1
VCDI 1 59 65 221 431 1056 7008 2683

Date: 2018-02-14:

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 14884 7225 1009 309 185 106 4 0
OW 0 64 164 116 107 96 13 0
VODI 0 48 129 153 197 175 47 0
ODI 0 27 82 116 181 382 219 0
CDI 0 30 59 145 156 392 689 7
VCDI 0 341 31 114 164 632 7380 1981
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14884 7059 784 234 139 79 3 0
OW 0 147 178 91 94 50 7 0
VODI 0 91 189 115 141 123 23 0
ODI 0 31 114 121 185 182 142 0
CDI 0 29 108 138 163 351 482 18
VCDI 0 378 101 254 268 998 7695 1970

Date: 2018-02-16:

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 14939 7090 939 337 166 86 4 0
OW 0 65 182 109 87 78 19 0
VODI 0 31 141 121 162 209 102 0
ODI 0 11 74 81 120 378 237 3
CDI 0 18 50 62 115 423 613 83
VCDI 0 351 47 105 111 603 7696 2111
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14939 6885 691 280 147 101 13 0
OW 0 172 153 73 61 73 6 0
VODI 0 80 186 99 123 148 34 0
ODI 0 36 123 90 89 252 163 0
CDI 0 14 126 95 116 358 448 30
VCDI 0 379 154 178 225 845 8007 2167


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