Validation of sea ice concentration

Bulletin date: 2020-04-09

Model vs. observations, sea ice class contingency tables

Date: 2020-04-03:

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 11438 5644 1258 868 468 220 149 0
OW 0 2 83 186 208 140 108 0
VODI 0 0 19 88 166 236 153 0
ODI 0 0 12 38 103 189 178 3
CDI 0 0 3 8 61 196 583 87
VCDI 0 0 7 7 46 273 8137 6794
...date precedes bulletin

Date: 2020-04-07:

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 11987 6007 906 797 222 132 117 0
OW 0 64 58 189 163 77 61 0
VODI 0 9 15 99 129 128 141 0
ODI 0 5 5 42 103 136 240 0
CDI 0 0 2 19 61 139 590 45
VCDI 0 0 2 5 28 260 8195 6981
...date precedes bulletin

Date: 2020-04-09:

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

Date: 2020-04-13:

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

Date: 2020-04-15:

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 11724 6146 1399 687 379 162 55 0
OW 0 0 89 128 142 121 56 0
VODI 0 0 21 93 123 214 150 0
ODI 0 0 1 56 106 205 271 22
CDI 0 0 6 30 49 187 775 103
VCDI 0 0 0 20 54 199 5650 8736
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11724 6138 1322 619 377 179 73 0
OW 0 8 142 157 124 134 74 0
VODI 0 0 39 120 140 223 173 0
ODI 0 0 6 58 85 194 293 12
CDI 0 0 3 32 73 154 737 119
VCDI 0 0 4 28 54 204 5607 8730

Date: 2020-04-17:

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 11564 6098 1820 716 345 169 57 0
OW 0 0 130 126 147 104 63 0
VODI 0 0 55 123 221 229 160 0
ODI 0 0 7 72 148 193 314 4
CDI 0 0 1 51 92 237 918 36
VCDI 0 0 0 28 76 277 8824 4754
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11564 6069 1712 706 365 197 62 0
OW 0 21 189 123 122 130 72 0
VODI 0 8 75 116 198 189 251 1
ODI 0 0 22 52 123 167 340 8
CDI 0 0 10 64 114 200 966 24
VCDI 0 0 5 55 107 326 8645 4761


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