Description of algorithm
Full domain
American sector
European sector
  Ice concntr, edge pos
  Contingency tables
Asian sector

Validation of sea ice concentration - European sector

Bulletin date: 2022-06-23

Data source: OSI SAF N.H. AMSR sea ice concentration

Model vs. observations, sea ice class contingency tables

Date: 2022-06-17:

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 67752 20872 3107 1590 102 19 16 0
OW 20 183 118 424 211 28 12 0
VODI 0 84 70 320 460 130 20 0
ODI 0 40 38 240 409 255 88 0
CDI 0 45 61 286 1207 1623 529 0
VCDI 0 0 3 42 76 1192 5664 1764
...date precedes bulletin

Date: 2022-06-19:

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 62632 24204 5261 1395 183 24 0 0
OW 17 153 114 394 308 28 0 0
VODI 0 94 58 281 440 169 10 0
ODI 0 40 36 206 530 286 69 0
CDI 0 42 83 278 1282 1467 368 0
VCDI 0 0 4 49 105 1257 6093 1140
...date precedes bulletin

Date: 2022-06-21:

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 68350 21683 2854 988 162 29 7 0
OW 16 96 157 410 153 10 1 0
VODI 0 55 56 441 431 129 4 0
ODI 0 46 25 247 691 431 43 0
CDI 0 26 82 182 769 1616 464 0
VCDI 0 0 0 24 132 864 6385 1041
...date precedes bulletin

Date: 2022-06-23:

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 68397 21119 3680 1045 115 23 0 0
OW 15 108 112 474 200 24 0 0
VODI 0 88 15 401 453 136 0 0
ODI 0 72 18 233 542 521 43 0
CDI 0 130 63 194 589 1264 358 0
VCDI 0 0 3 60 193 1038 6429 945
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 68397 21126 3703 1108 143 24 0 0
OW 15 102 86 432 182 21 0 0
VODI 0 95 19 380 430 134 0 0
ODI 0 77 24 248 571 521 22 0
CDI 0 117 58 186 562 1274 383 0
VCDI 0 0 1 53 204 1032 6425 945

Date: 2022-06-25:

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 64485 24628 3878 1488 171 8 0 0
OW 13 109 100 451 275 9 0 0
VODI 0 96 20 369 530 96 12 0
ODI 0 93 8 202 531 494 41 0
CDI 0 164 65 223 484 1240 231 0
VCDI 0 0 1 42 115 771 7440 217
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 64485 24632 3884 1533 211 8 0 0
OW 13 104 85 419 233 13 0 0
VODI 0 109 28 359 540 84 10 0
ODI 0 111 12 207 530 448 34 0
CDI 0 134 62 220 468 1278 244 0
VCDI 0 0 1 37 124 787 7436 217

Date: 2022-06-27:

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 71556 18171 3999 998 105 7 0 0
OW 13 98 136 422 163 16 0 0
VODI 0 85 35 610 425 43 4 0
ODI 0 52 19 282 888 360 28 0
CDI 0 68 55 138 489 1488 103 0
VCDI 0 0 0 6 68 1339 6772 59
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 71559 18066 4010 1183 206 17 0 0
OW 10 104 127 423 289 35 0 0
VODI 0 110 20 366 451 103 29 0
ODI 0 92 17 253 476 369 36 0
CDI 0 102 70 223 603 1270 63 0
VCDI 0 0 0 8 113 1459 6779 59

Date: 2022-06-29:

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 67409 22341 4468 847 85 1 0 0
OW 9 95 172 537 160 10 0 0
VODI 0 45 76 509 425 98 0 0
ODI 0 24 33 270 538 672 17 0
CDI 0 42 34 150 571 1228 60 0
VCDI 0 1 5 25 169 2449 5525 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 67409 22249 4442 1097 192 8 0 0
OW 9 124 142 383 207 22 0 0
VODI 0 67 83 347 401 193 3 0
ODI 0 47 48 275 283 484 11 0
CDI 0 60 70 217 678 1247 90 0
VCDI 0 1 3 19 187 2504 5498 0

Date: 2022-07-01:

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 73325 18327 2654 957 82 2 0 0
OW 9 127 128 527 216 7 0 0
VODI 0 65 55 492 458 196 0 0
ODI 0 31 19 205 470 662 32 0
CDI 0 45 23 187 694 1066 97 0
VCDI 0 0 4 36 168 5559 2175 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73325 18307 2624 1216 217 11 0 0
OW 9 107 127 355 231 32 0 0
VODI 0 79 70 347 402 274 1 0
ODI 0 60 15 218 293 388 22 0
CDI 0 42 47 256 812 1348 177 0
VCDI 0 0 0 12 133 5439 2104 0


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