Validation of sea ice concentration

Bulletin date: 2017-03-09

Model vs. observations, sea ice class contingency tables

Date: 2017-03-03:

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 13718 6542 674 296 142 23 10 0
OW 0 46 160 178 138 52 45 0
VODI 0 16 78 174 187 155 91 0
ODI 0 6 36 78 171 246 236 0
CDI 0 0 33 69 162 294 879 17
VCDI 0 0 58 89 172 799 8241 3848
...date precedes bulletin

Date: 2017-03-07:

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 13526 6334 880 334 80 46 5 0
OW 0 36 122 138 83 40 23 0
VODI 0 4 74 153 108 97 70 0
ODI 0 2 27 105 138 223 154 1
CDI 0 0 19 81 160 458 556 19
VCDI 0 0 10 100 166 913 8426 4448
...date precedes bulletin

Date: 2017-03-09:

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 13726 6286 781 298 81 25 2 0
OW 0 41 116 136 81 40 29 0
VODI 0 6 87 125 117 120 75 0
ODI 0 0 33 92 131 178 163 0
CDI 0 0 16 73 134 305 554 10
VCDI 0 0 16 45 156 709 9049 4323
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13726 6294 784 314 96 31 9 0
OW 0 33 114 119 82 41 23 0
VODI 0 6 82 129 119 109 74 0
ODI 0 0 35 89 113 186 159 0
CDI 0 0 19 73 127 283 592 10
VCDI 0 0 15 45 163 727 9015 4323

Date: 2017-03-13:

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 13663 6413 725 294 108 61 7 0
OW 0 17 113 140 73 46 10 0
VODI 0 3 50 155 112 106 43 0
ODI 0 0 32 118 134 159 113 0
CDI 0 0 3 70 156 376 565 12
VCDI 0 0 10 62 165 1120 8344 4581
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13663 6369 640 259 105 69 11 0
OW 0 49 123 89 60 55 17 0
VODI 0 14 101 159 96 102 50 0
ODI 0 1 44 153 109 116 98 2
CDI 0 0 15 100 172 347 516 10
VCDI 0 0 10 79 206 1179 8390 4581

Date: 2017-03-15:

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 13649 6510 769 281 84 35 7 0
OW 0 12 137 140 85 62 20 0
VODI 0 2 76 141 133 152 55 0
ODI 0 0 27 93 123 160 162 0
CDI 0 0 6 42 126 346 525 13
VCDI 0 0 22 51 129 661 8481 4842
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13649 6484 629 228 80 32 25 0
OW 0 30 174 91 63 52 23 0
VODI 0 4 129 171 107 116 54 0
ODI 0 5 57 110 118 142 116 1
CDI 0 1 22 84 155 318 502 18
VCDI 0 0 26 64 157 756 8530 4836

Date: 2017-03-17:

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 13555 6609 640 385 55 30 18 0
OW 0 46 221 228 62 20 32 0
VODI 0 11 154 208 142 62 53 0
ODI 0 0 61 164 166 158 166 7
CDI 0 0 23 126 171 227 467 20
VCDI 0 0 20 172 320 654 8208 4498
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13555 6540 570 347 59 38 44 0
OW 0 74 163 156 38 17 38 0
VODI 0 30 166 211 120 52 46 0
ODI 0 10 102 143 95 93 119 1
CDI 0 10 59 169 169 200 370 11
VCDI 0 2 59 257 435 751 8327 4513


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