Validation of sea ice concentration

Bulletin date: 2013-04-04

Model vs. observations, sea ice class contingency tables

Date: 2013-03-29:

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

Date: 2013-04-02:

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 12726 5977 438 269 149 89 0 0
OW 0 84 68 72 96 106 5 0
VODI 0 34 40 75 133 220 44 0
ODI 0 14 11 70 130 287 148 0
CDI 0 12 4 60 109 407 633 7
VCDI 0 7 8 120 99 617 8744 5307
...date precedes bulletin

Date: 2013-04-04:

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 12346 5772 753 362 203 85 0 0
OW 0 86 72 80 103 105 9 0
VODI 0 57 52 67 156 192 53 0
ODI 0 15 32 67 162 275 143 31
CDI 0 8 20 34 84 414 565 84
VCDI 0 1 19 107 118 660 8402 5625
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12346 5849 824 439 292 165 7 0
OW 0 47 40 41 71 71 19 0
VODI 0 23 26 49 124 143 62 0
ODI 0 7 19 50 124 221 117 34
CDI 0 8 10 25 80 366 468 84
VCDI 0 5 29 113 135 765 8499 5622

Date: 2013-04-08:

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 12286 5776 550 309 195 126 7 0
OW 0 20 82 99 133 124 12 0
VODI 0 0 26 67 140 276 55 0
ODI 0 0 2 19 107 443 122 0
CDI 0 0 0 10 63 570 546 5
VCDI 0 0 1 9 52 530 9217 5440
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12286 5780 597 383 307 298 35 0
OW 0 12 27 29 46 103 24 0
VODI 0 4 16 39 70 172 51 0
ODI 0 0 11 22 57 206 81 1
CDI 0 0 8 16 73 344 399 7
VCDI 0 0 2 24 137 946 9369 5437

Date: 2013-04-10:

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 11995 5757 698 466 177 82 21 0
OW 0 47 60 117 113 96 38 0
VODI 0 7 38 85 125 184 97 0
ODI 0 1 3 67 76 197 165 0
CDI 0 0 1 25 99 357 547 22
VCDI 0 0 2 10 118 745 9071 5710
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11995 5773 709 537 287 226 86 0
OW 0 20 35 44 57 78 53 0
VODI 0 11 20 41 58 125 93 0
ODI 0 7 11 46 51 141 166 8
CDI 0 1 14 54 68 197 521 16
VCDI 0 0 13 48 187 894 9020 5708

Date: 2013-04-12:

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 12671 5618 357 277 148 52 28 0
OW 0 113 77 94 102 56 48 0
VODI 0 63 59 96 141 115 108 0
ODI 0 25 32 60 128 133 187 0
CDI 0 6 22 54 113 229 728 7
VCDI 0 0 1 27 83 510 9146 5705
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12671 5672 406 384 252 119 115 0
OW 0 50 39 35 72 47 46 0
VODI 0 38 35 34 87 88 101 0
ODI 0 22 21 39 82 103 157 0
CDI 0 33 22 50 90 239 595 3
VCDI 0 10 25 66 132 499 9231 5709


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