Validation of sea ice concentration

Bulletin date: 2014-08-21

Model vs. observations, sea ice class contingency tables

Date: 2014-08-15:

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 22728 4993 520 709 101 26 12 0
OW 0 40 48 302 109 23 14 0
VODI 0 39 24 88 127 82 58 0
ODI 0 15 26 58 56 81 103 0
CDI 0 0 16 57 171 239 815 52
VCDI 0 2 0 9 28 198 2765 2333
...date precedes bulletin

Date: 2014-08-19:

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 22717 4693 824 535 188 22 10 0
OW 0 11 49 183 123 10 5 0
VODI 0 1 40 134 166 45 13 0
ODI 0 0 21 59 106 90 55 0
CDI 0 0 16 45 88 346 370 0
VCDI 0 0 0 22 30 297 3269 2484
...date precedes bulletin

Date: 2014-08-21:

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 23106 4222 597 651 307 45 20 0
OW 0 19 42 106 181 40 9 0
VODI 0 16 41 59 88 86 30 0
ODI 0 9 23 40 62 115 101 0
CDI 0 0 21 62 60 217 466 0
VCDI 0 0 0 14 21 140 3077 2974
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 23106 4223 601 675 340 51 22 0
OW 0 20 40 91 161 35 12 0
VODI 0 17 40 53 84 90 35 0
ODI 0 6 26 42 60 119 95 0
CDI 0 0 17 66 59 216 484 0
VCDI 0 0 0 5 15 132 3055 2974

Date: 2014-08-25:

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 22995 4409 893 479 178 27 13 0
OW 0 38 63 128 62 20 6 0
VODI 0 31 41 54 119 67 47 0
ODI 0 11 16 44 51 75 116 0
CDI 0 0 35 45 69 121 477 13
VCDI 0 0 1 18 57 140 3060 3048
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 22995 4313 877 489 210 44 22 0
OW 0 53 47 105 72 28 18 0
VODI 0 59 33 39 63 51 66 0
ODI 0 47 47 36 42 53 95 0
CDI 0 17 36 84 96 136 555 43
VCDI 0 0 9 15 53 138 2963 3018

Date: 2014-08-27:

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 21653 5312 997 563 396 97 27 0
OW 0 20 28 132 64 33 16 0
VODI 0 9 25 93 96 52 44 0
ODI 0 7 21 40 72 75 118 4
CDI 0 8 17 52 91 153 519 28
VCDI 0 0 0 2 35 184 3164 2820
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 21653 5249 964 579 404 125 46 0
OW 0 39 39 98 71 32 28 0
VODI 0 41 29 71 64 50 64 0
ODI 0 22 33 53 77 59 119 0
CDI 0 5 23 54 107 155 686 123
VCDI 0 0 0 27 31 173 2945 2729

Date: 2014-08-29:

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 21635 5311 1053 792 243 29 2 0
OW 0 71 32 96 97 25 12 0
VODI 0 39 33 67 82 77 39 0
ODI 0 22 20 43 89 77 103 0
CDI 0 20 39 44 138 152 482 8
VCDI 0 0 6 19 45 221 3275 2529
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 21635 5222 1050 772 293 51 15 0
OW 0 76 24 71 67 33 20 0
VODI 0 78 25 79 67 63 56 0
ODI 0 61 25 53 76 71 100 0
CDI 0 26 50 70 133 177 606 17
VCDI 0 0 9 16 58 186 3116 2520


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