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: 2024-02-22

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

Model vs. observations, sea ice class contingency tables

Date: 2024-02-16:

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 66431 17014 358 430 167 108 44 0
OW 57 744 139 348 155 74 6 0
VODI 0 594 136 327 306 161 23 0
ODI 0 207 61 211 269 259 48 0
CDI 0 168 72 185 265 426 256 0
VCDI 0 191 86 427 870 3215 12153 2109
...date precedes bulletin

Date: 2024-02-18:

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 65318 17482 442 610 196 68 31 0
OW 52 710 195 428 200 44 8 0
VODI 0 332 165 456 340 132 21 0
ODI 0 114 70 315 385 251 53 0
CDI 0 65 48 249 359 452 229 0
VCDI 0 92 51 314 922 3691 11876 2334
...date precedes bulletin

Date: 2024-02-20:

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 63962 18864 651 627 206 37 26 0
OW 52 338 203 425 206 38 9 0
VODI 0 129 82 512 523 126 7 0
ODI 0 93 55 170 592 313 48 0
CDI 0 34 13 146 579 881 310 0
VCDI 0 54 27 102 702 4517 9132 4309
...date precedes bulletin

Date: 2024-02-22:

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 65916 16685 440 709 383 91 64 0
OW 53 401 151 325 276 57 14 0
VODI 0 213 83 286 516 185 42 0
ODI 0 108 47 166 428 304 124 0
CDI 0 60 46 163 581 588 343 0
VCDI 0 77 37 139 856 3966 9104 5073
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 65916 16776 460 717 402 88 57 0
OW 53 316 136 316 276 61 21 0
VODI 0 207 75 288 494 161 44 0
ODI 0 105 44 158 414 317 116 0
CDI 0 65 48 157 559 552 326 0
VCDI 0 75 41 152 895 4012 9127 5073

Date: 2024-02-24:

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 66385 16261 351 688 279 126 59 0
OW 53 600 137 313 164 92 24 0
VODI 0 365 130 400 289 163 71 0
ODI 0 201 54 303 392 244 130 0
CDI 0 127 63 160 462 368 323 0
VCDI 0 96 63 230 784 3376 9733 5041
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 66385 16361 380 727 293 140 57 0
OW 53 530 118 327 156 75 26 0
VODI 0 336 115 351 262 154 72 0
ODI 0 185 61 286 369 226 117 0
CDI 0 132 58 167 428 376 297 0
VCDI 0 106 66 236 862 3398 9771 5041

Date: 2024-02-26:

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 65488 17092 365 638 303 158 81 0
OW 62 557 188 379 167 69 13 0
VODI 0 240 91 547 455 177 41 0
ODI 0 56 32 202 612 354 88 0
CDI 0 55 18 95 451 1157 477 0
VCDI 0 40 20 81 417 2991 9599 5244
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 42984 11227 275 501 292 141 51 0
OW 39 264 72 190 127 87 20 0
VODI 0 165 58 206 240 145 59 0
ODI 22527 6190 254 815 1095 1849 3670 1800
CDI 0 80 22 89 196 334 210 0
VCDI 0 114 33 141 455 2350 6289 3444

Date: 2024-02-28:

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 64904 17323 387 702 429 178 67 0
OW 52 588 160 375 228 77 13 0
VODI 0 301 105 488 416 199 39 0
ODI 0 136 49 191 429 335 102 0
CDI 0 115 41 123 339 671 391 0
VCDI 0 33 46 158 497 3617 9467 5329
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 34936 9112 295 584 440 372 195 0
OW 179 199 48 136 122 95 15 0
VODI 151 140 28 169 209 128 63 0
ODI 17799 5048 228 715 892 1836 3486 1808
CDI 285 80 31 80 151 242 229 0
VCDI 11606 3917 158 353 524 2404 6091 3521

Date: 2024-03-01:

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 66009 16818 423 558 245 169 65 0
OW 53 838 135 388 164 72 1 0
VODI 0 393 153 373 371 165 28 0
ODI 0 166 71 167 479 256 94 0
CDI 0 79 59 190 360 478 343 0
VCDI 0 57 46 229 881 3990 9435 4299
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 35542 8896 298 446 273 348 170 0
OW 163 259 51 137 93 59 16 0
VODI 157 215 68 163 177 83 31 0
ODI 18107 5066 294 719 988 1720 3442 1456
CDI 284 103 25 95 242 216 145 0
VCDI 11809 3812 151 345 727 2704 6162 2843


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