Validation of sea ice concentration

Bulletin date: 2017-08-03

Model vs. observations, sea ice class contingency tables

Date: 2017-07-28:

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 16934 8570 2097 1434 816 361 153 0
OW 0 0 24 84 211 235 144 0
VODI 0 0 1 34 120 351 394 0
ODI 0 0 3 5 52 140 1229 11
CDI 0 0 3 0 34 119 2729 964
VCDI 0 0 0 0 0 2 230 675
...date precedes bulletin

Date: 2017-08-01:

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 18979 7672 1263 1629 664 231 67 0
OW 0 1 24 151 216 83 41 0
VODI 0 0 9 74 257 172 83 0
ODI 0 0 6 22 143 651 357 0
CDI 0 0 0 4 32 505 2671 1539
VCDI 0 0 0 0 0 0 16 597
...date precedes bulletin

Date: 2017-08-03:

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 18775 7867 1508 1406 709 234 58 0
OW 0 0 27 113 227 115 36 0
VODI 0 0 9 49 248 256 109 0
ODI 0 0 5 17 98 785 327 0
CDI 0 0 1 4 42 436 2502 1673
VCDI 0 0 0 0 0 0 121 402
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 18775 7867 1507 1418 724 246 61 0
OW 0 0 26 101 205 103 32 0
VODI 0 0 10 44 255 262 115 0
ODI 0 0 4 22 96 693 406 8
CDI 0 0 3 4 44 521 2374 1658
VCDI 0 0 0 0 0 1 165 409

Date: 2017-08-07:

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 19467 7550 1666 1423 408 88 65 0
OW 0 0 14 132 200 34 26 0
VODI 0 0 5 46 299 187 54 0
ODI 0 0 3 9 112 637 634 96
CDI 0 0 2 2 18 251 2350 928
VCDI 0 0 0 0 0 3 440 1010
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 19467 7550 1654 1391 408 90 78 0
OW 0 0 25 147 192 79 24 0
VODI 0 0 6 61 327 280 126 0
ODI 0 0 5 11 87 575 733 62
CDI 0 0 0 2 23 176 2376 1422
VCDI 0 0 0 0 0 0 232 550

Date: 2017-08-09:

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 19283 7689 1433 1708 458 125 57 0
OW 0 0 12 130 155 72 26 0
VODI 0 0 10 43 274 229 73 0
ODI 0 0 4 5 49 709 802 36
CDI 0 0 0 1 27 198 2399 685
VCDI 0 0 0 0 0 4 466 997
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 19283 7686 1415 1668 428 144 71 0
OW 0 3 29 137 183 112 31 0
VODI 0 0 11 74 280 307 159 0
ODI 0 0 4 8 50 537 873 100
CDI 0 0 0 0 22 237 2525 1151
VCDI 0 0 0 0 0 0 164 467

Date: 2017-08-11:

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 19519 7703 1413 1621 410 105 56 0
OW 0 0 9 125 212 57 30 0
VODI 0 0 6 45 308 241 88 0
ODI 0 0 1 9 52 743 901 1
CDI 0 0 0 1 30 204 2678 337
VCDI 0 0 0 0 0 0 319 935
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 19519 7689 1411 1573 389 113 73 0
OW 0 14 10 162 237 127 41 0
VODI 0 0 6 53 325 310 182 0
ODI 0 0 2 12 32 559 1106 4
CDI 0 0 0 1 29 241 2663 1157
VCDI 0 0 0 0 0 0 7 112


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