Validation of sea ice concentration

Bulletin date: 2020-12-24

Model vs. observations, sea ice class contingency tables

Date: 2020-12-18:

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 15995 7019 518 338 147 70 6 0
OW 21 189 114 158 112 155 38 0
VODI 0 59 125 142 118 146 65 0
ODI 0 14 77 111 114 184 80 1
CDI 0 11 30 89 80 256 255 17
VCDI 0 3 22 61 78 479 5779 4883
...date precedes bulletin

Date: 2020-12-22:

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 15512 7143 522 269 114 31 5 0
OW 10 98 135 129 71 57 11 0
VODI 0 47 96 145 105 155 32 0
ODI 0 11 38 110 111 254 75 0
CDI 0 4 19 72 138 420 299 19
VCDI 0 0 5 22 76 739 5917 5143
...date precedes bulletin

Date: 2020-12-24:

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

Date: 2020-12-28:

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 14613 6660 1563 273 84 71 59 0
OW 0 26 282 185 108 56 28 0
VODI 0 19 153 207 162 209 51 0
ODI 0 8 81 121 153 208 105 0
CDI 0 11 70 106 155 295 452 6
VCDI 0 13 147 160 232 498 5942 4587
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14613 6515 1349 244 104 87 83 0
OW 0 127 314 138 79 89 38 0
VODI 0 54 268 170 135 158 64 0
ODI 0 20 112 135 103 138 129 0
CDI 0 12 85 141 126 198 365 8
VCDI 0 9 168 224 347 667 5958 4585

Date: 2020-12-30:

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 14758 6741 1192 283 59 92 9 0
OW 0 125 270 210 72 71 15 0
VODI 0 56 179 212 96 175 21 0
ODI 0 20 75 166 111 228 40 0
CDI 0 22 32 133 161 318 337 32
VCDI 0 63 126 137 286 828 6984 3424
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14758 6472 1065 279 74 132 22 0
OW 0 225 245 138 44 111 22 0
VODI 0 169 214 195 76 190 30 0
ODI 0 57 132 167 89 189 87 0
CDI 0 25 61 158 146 277 366 19
VCDI 0 79 157 204 356 813 6879 3437

Date: 2021-01-01:

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


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