Validation of sea ice concentration

Bulletin date: 2018-06-07

Model vs. observations, sea ice class contingency tables

Date: 2018-06-01:

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 15598 6517 1248 1418 348 52 34 0
OW 0 9 59 211 244 83 69 11
VODI 0 0 18 135 260 202 168 13
ODI 0 0 5 50 114 212 382 1
CDI 0 0 0 27 57 203 1324 1
VCDI 0 0 0 13 45 145 4899 3984
...date precedes bulletin

Date: 2018-06-05:

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 16265 6448 955 1222 410 89 51 3
OW 0 19 84 185 170 57 60 16
VODI 0 0 39 158 276 135 135 5
ODI 0 0 13 73 175 253 284 1
CDI 0 0 5 51 92 333 1701 0
VCDI 0 0 2 11 14 150 4436 3783
...date precedes bulletin

Date: 2018-06-07:

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 16396 6334 1113 1182 346 39 58 11
OW 0 27 80 220 211 68 64 11
VODI 0 5 54 176 288 174 155 2
ODI 0 0 22 78 117 241 445 1
CDI 0 0 6 102 94 249 1996 6
VCDI 0 0 1 14 18 29 3999 3727
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16396 6342 1125 1249 399 55 69 21
OW 0 19 65 163 198 61 57 1
VODI 0 5 58 165 247 205 175 2
ODI 0 0 21 88 125 203 480 1
CDI 0 0 6 96 81 234 1832 8
VCDI 0 0 1 11 24 42 4104 3725

Date: 2018-06-11:

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 16254 6377 1324 1292 341 61 73 0
OW 0 0 39 257 193 46 65 0
VODI 0 0 21 166 314 112 153 0
ODI 0 0 8 101 246 338 419 0
CDI 0 0 2 33 92 291 2884 18
VCDI 0 0 0 1 1 40 2956 3641
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16254 6377 1335 1364 502 100 118 0
OW 0 0 32 164 182 90 125 0
VODI 0 0 17 151 166 193 287 0
ODI 0 0 8 104 160 181 583 0
CDI 0 0 2 66 176 314 2628 13
VCDI 0 0 0 1 1 10 2809 3646

Date: 2018-06-13:

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 16018 6363 1557 1244 672 111 82 0
OW 0 0 42 147 207 95 77 0
VODI 0 0 21 136 249 303 207 0
ODI 0 0 10 64 129 293 706 0
CDI 0 0 1 13 31 232 2870 9
VCDI 0 0 0 0 2 11 2601 3656
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16018 6363 1517 1137 784 227 151 0
OW 0 0 49 113 130 162 149 0
VODI 0 0 54 158 124 175 352 0
ODI 0 0 10 128 158 179 632 0
CDI 0 0 1 68 91 295 3187 37
VCDI 0 0 0 0 3 7 2072 3628

Date: 2018-06-15:

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 16351 6537 1706 1121 418 65 97 0
OW 0 0 63 188 228 129 85 0
VODI 0 0 53 143 227 328 275 0
ODI 0 0 22 75 134 448 687 0
CDI 0 0 2 7 35 279 2796 0
VCDI 0 0 0 2 5 9 2103 3541
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16351 6533 1564 1028 536 188 167 0
OW 0 4 103 120 102 169 138 0
VODI 0 0 90 186 123 164 408 0
ODI 0 0 40 137 173 218 646 0
CDI 0 0 49 63 109 498 3324 5
VCDI 0 0 0 2 4 21 1360 3536


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