Validation of sea ice concentration

Bulletin date: 2015-02-19

Model vs. observations, sea ice class contingency tables

Date: 2015-02-13:

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 12563 5456 569 274 80 9 0 0
OW 0 127 164 107 62 23 2 0
VODI 0 48 118 161 117 69 20 0
ODI 0 12 65 116 115 115 61 6
CDI 0 1 39 104 169 192 202 41
VCDI 0 0 81 190 375 874 8337 6003
...date precedes bulletin

Date: 2015-02-17:

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 13350 5523 632 131 55 16 3 0
OW 0 87 142 102 60 29 10 0
VODI 0 63 93 105 84 72 45 0
ODI 0 30 51 85 71 104 131 6
CDI 0 45 34 77 115 177 395 100
VCDI 0 39 87 137 239 349 6638 7555
...date precedes bulletin

Date: 2015-02-19:

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 13574 5367 436 83 10 0 0 0
OW 0 171 127 95 31 9 0 0
VODI 0 113 119 159 55 42 19 13
ODI 0 57 56 137 79 87 90 65
CDI 0 44 26 102 128 152 267 153
VCDI 0 75 97 281 393 740 6737 6878
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13574 5401 444 77 12 0 0 0
OW 0 144 125 112 24 7 0 0
VODI 0 111 121 149 64 48 24 11
ODI 0 52 51 139 84 90 92 63
CDI 0 46 25 99 125 149 253 156
VCDI 0 73 95 281 387 736 6744 6879

Date: 2015-02-23:

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 5260 1765 369 57 20 2 0
OW 0 22 167 162 98 31 6 0
VODI 0 6 117 144 128 100 48 0
ODI 0 0 85 106 123 146 162 0
CDI 0 0 35 201 220 175 442 37
VCDI 0 0 24 81 313 846 8539 5043
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11987 5180 1527 295 68 25 2 0
OW 0 46 172 140 60 33 9 0
VODI 0 47 143 127 116 87 46 0
ODI 0 10 96 75 99 110 183 0
CDI 0 5 100 101 113 150 364 20
VCDI 0 0 155 325 483 913 8595 5060

Date: 2015-02-25:

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 12532 5594 912 238 79 23 18 0
OW 0 29 187 171 62 18 20 0
VODI 0 12 129 150 143 54 48 0
ODI 0 1 45 134 139 114 119 0
CDI 0 1 57 149 183 149 353 6
VCDI 0 0 46 173 328 580 9817 4254
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12532 5482 775 221 68 25 40 0
OW 0 81 151 147 68 21 41 0
VODI 0 39 157 136 116 75 82 0
ODI 0 16 96 100 111 109 155 0
CDI 0 9 67 105 143 116 354 3
VCDI 0 10 130 306 428 592 9703 4257

Date: 2015-02-27:

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 13128 5424 528 236 68 18 15 0
OW 0 144 130 146 89 46 19 0
VODI 0 90 135 97 103 87 70 0
ODI 0 36 75 101 85 94 184 0
CDI 0 35 69 106 129 163 453 1
VCDI 0 33 126 272 283 1190 10994 2065
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13128 5183 555 245 78 35 78 0
OW 0 143 88 121 74 30 59 0
VODI 0 124 61 121 124 90 108 0
ODI 0 76 65 68 86 125 177 0
CDI 0 52 71 82 112 133 379 0
VCDI 0 184 223 321 283 1185 10934 2066


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