Validation of sea ice concentration

Bulletin date: 2012-01-04

Model vs. observations, sea ice class contingency tables

Date: 2011-12-29:

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 15681 6680 578 320 96 22 0 0
OW 0 377 160 330 98 63 0 0
VODI 0 175 83 307 293 163 43 0
ODI 0 29 56 128 300 404 209 0
CDI 0 0 0 10 147 574 423 17
VCDI 0 0 0 6 108 1060 5374 3105
...date precedes bulletin

Date: 2012-01-02:

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 14607 6886 654 149 23 3 4 0
OW 0 354 243 165 65 46 17 0
VODI 0 121 209 199 202 250 140 0
ODI 0 32 60 194 240 297 352 3
CDI 0 21 27 70 165 429 572 28
VCDI 0 5 23 75 123 693 5308 4365
...date precedes bulletin

Date: 2012-01-04:

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 15290 7105 557 221 44 3 4 0
OW 0 253 277 247 127 26 1 0
VODI 0 57 118 213 313 225 42 1
ODI 0 1 72 77 354 570 254 3
CDI 0 0 56 52 193 599 1075 3
VCDI 0 0 0 12 103 629 4335 3907
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 15290 6958 554 307 300 155 137 0
OW 0 79 87 77 52 38 48 0
VODI 0 72 94 79 100 71 75 1
ODI 0 50 47 77 82 134 103 3
CDI 0 115 70 100 110 281 355 2
VCDI 0 142 228 182 490 1373 4993 3908

Date: 2012-01-08:

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

Date: 2012-01-10:

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 14512 6963 544 197 104 61 4 0
OW 0 253 189 165 103 143 13 0
VODI 0 134 149 156 149 304 32 0
ODI 0 35 82 93 108 389 169 2
CDI 0 21 45 105 101 512 301 61
VCDI 0 0 5 27 70 1405 5392 4321
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14512 7058 652 379 272 305 118 0
OW 0 91 49 55 50 68 25 0
VODI 0 84 65 50 59 173 32 0
ODI 0 47 46 26 34 230 53 6
CDI 0 67 63 41 37 285 136 63
VCDI 0 59 139 192 183 1753 5547 4315

Date: 2012-01-12:

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 14707 7036 614 221 64 41 1 0
OW 1 205 185 192 113 47 8 0
VODI 0 60 110 246 196 129 18 0
ODI 0 5 26 118 187 300 86 0
CDI 0 0 14 51 134 477 594 25
VCDI 0 0 0 13 52 831 5895 4417
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14708 6902 594 361 203 159 146 0
OW 0 97 62 70 65 56 25 0
VODI 0 115 53 81 95 111 33 0
ODI 0 73 34 45 56 132 80 0
CDI 0 63 65 73 75 205 228 14
VCDI 0 56 141 211 252 1162 6090 4428


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