Validation of sea ice concentration

Bulletin date: 2013-03-07

Model vs. observations, sea ice class contingency tables

Date: 2013-03-01:

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 12754 5939 558 318 94 21 0 0
OW 0 186 118 141 59 31 1 0
VODI 0 135 123 164 105 84 5 0
ODI 0 49 82 133 154 184 14 2
CDI 0 13 55 91 180 446 137 47
VCDI 0 0 17 96 183 1065 8774 4862
...date precedes bulletin

Date: 2013-03-05:

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 12976 6016 693 252 85 39 4 0
OW 0 154 148 145 72 35 14 0
VODI 0 56 83 172 125 60 34 0
ODI 0 5 40 101 154 118 67 0
CDI 0 5 8 52 180 258 242 11
VCDI 0 5 7 42 145 791 8656 5370
...date precedes bulletin

Date: 2013-03-07:

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 12716 5945 480 357 205 68 1 0
OW 0 199 109 97 94 74 5 0
VODI 0 128 82 120 137 121 20 0
ODI 0 21 42 76 151 206 52 0
CDI 0 9 23 41 125 434 268 64
VCDI 0 0 6 23 113 680 7079 7049
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12716 6165 577 445 307 135 7 0
OW 0 83 48 57 64 73 9 0
VODI 0 34 48 85 107 120 34 0
ODI 0 13 39 63 100 163 50 1
CDI 0 7 22 36 118 349 259 66
VCDI 0 0 8 28 129 743 7066 7046

Date: 2013-03-11:

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 11642 6076 969 591 320 71 11 0
OW 0 39 70 170 156 128 9 0
VODI 0 9 33 109 166 188 42 0
ODI 0 1 5 47 127 247 87 0
CDI 0 0 3 24 129 480 421 47
VCDI 0 0 0 27 114 726 8125 6011
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11642 5983 953 665 405 199 31 0
OW 0 62 33 65 66 80 22 0
VODI 0 47 44 79 105 101 46 0
ODI 0 31 28 54 90 159 77 1
CDI 0 1 17 47 152 360 331 62
VCDI 0 1 5 58 194 941 8188 5995

Date: 2013-03-13:

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 12192 5932 623 407 266 99 10 0
OW 1 63 110 92 129 100 26 0
VODI 0 23 62 93 117 170 46 0
ODI 0 7 17 55 104 230 77 0
CDI 0 2 4 24 135 409 357 0
VCDI 0 0 2 16 132 631 8438 6219
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12192 5865 649 459 367 226 45 0
OW 1 59 66 36 59 74 29 0
VODI 0 63 52 61 74 126 55 0
ODI 0 27 31 43 72 157 83 0
CDI 0 3 13 53 123 385 361 1
VCDI 0 10 7 35 188 671 8381 6218

Date: 2013-03-15:

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 12297 5915 498 296 184 90 54 0
OW 1 71 99 120 97 78 43 0
VODI 0 46 83 99 116 149 71 0
ODI 0 6 29 83 102 188 102 0
CDI 0 0 9 33 136 346 412 26
VCDI 0 0 0 10 95 411 6870 8155
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12297 5839 515 390 285 225 135 0
OW 1 73 59 43 61 72 54 0
VODI 0 76 64 49 48 98 100 0
ODI 0 35 40 59 57 106 115 0
CDI 0 13 20 52 103 229 386 50
VCDI 0 2 20 48 176 532 6762 8131


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