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

Validation of sea ice concentration - Full domain

Bulletin date: 2020-01-30

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

Model vs. observations, sea ice class contingency tables

Date: 2020-01-24:

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 71946 13906 147 526 270 119 12 0
OW 76 532 72 442 205 43 18 0
VODI 0 255 38 455 353 115 25 0
ODI 0 102 16 292 438 154 79 0
CDI 0 42 8 187 692 397 265 95
VCDI 0 15 2 253 1463 5815 22497 64681
...date precedes bulletin

Date: 2020-01-26:

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 71756 13691 161 782 345 52 0 0
OW 60 500 45 382 313 46 5 0
VODI 0 241 32 389 486 94 11 0
ODI 0 69 16 245 479 170 50 0
CDI 0 37 6 145 691 421 154 70
VCDI 0 29 4 171 1613 5034 25656 62597
...date precedes bulletin

Date: 2020-01-28:

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 71790 13842 164 679 390 112 13 0
OW 77 380 60 399 315 74 13 0
VODI 0 134 25 383 531 154 24 0
ODI 0 55 7 140 481 278 116 0
CDI 0 38 3 62 590 419 188 8
VCDI 0 29 7 74 793 4715 18656 70830
...date precedes bulletin

Date: 2020-01-30:

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 71747 13623 152 614 344 121 1 0
OW 60 428 84 394 297 144 13 0
VODI 0 154 32 376 455 340 40 0
ODI 0 57 7 145 392 357 179 3
CDI 0 35 1 97 466 652 359 54
VCDI 0 10 6 70 663 3778 19969 70329
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 71746 13587 161 630 354 143 2 0
OW 61 454 70 371 306 155 11 0
VODI 0 157 37 367 434 322 46 0
ODI 0 61 7 148 378 318 155 1
CDI 0 33 1 103 444 641 357 54
VCDI 0 15 6 77 701 3813 19990 70331

Date: 2020-02-01:

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 71586 13719 170 583 200 32 0 0
OW 59 530 88 495 254 45 0 0
VODI 0 195 41 542 504 168 17 0
ODI 0 53 15 230 563 246 144 0
CDI 0 21 8 104 757 773 201 17
VCDI 0 2 2 115 881 5194 23346 65148
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 71585 13740 173 603 215 38 0 0
OW 60 474 89 462 255 38 0 0
VODI 0 218 29 534 472 171 17 0
ODI 0 70 22 238 546 258 151 0
CDI 0 14 8 122 755 746 201 34
VCDI 0 4 3 110 916 5207 23339 65131

Date: 2020-02-03:

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 71198 13964 113 395 143 54 0 0
OW 60 721 88 508 174 32 0 0
VODI 0 386 72 714 537 58 4 0
ODI 0 106 13 279 879 215 15 0
CDI 0 51 10 199 762 894 353 72
VCDI 0 0 2 245 772 5713 28593 58654
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 71197 13860 110 457 183 69 0 0
OW 61 677 65 324 194 35 4 0
VODI 0 453 73 519 315 133 20 0
ODI 0 150 30 398 492 160 75 0
CDI 0 74 13 264 799 434 271 105
VCDI 0 14 7 378 1284 6135 28595 58621

Date: 2020-02-05:

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 70622 14471 140 598 186 19 0 0
OW 53 519 78 537 203 12 0 0
VODI 0 174 57 602 557 63 0 0
ODI 0 65 12 298 692 178 1 0
CDI 0 26 8 166 751 688 170 46
VCDI 0 0 0 50 1572 5206 25498 62730
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 70622 14344 152 657 222 30 0 0
OW 53 484 44 478 205 24 0 0
VODI 0 287 64 464 411 130 7 0
ODI 0 108 22 316 592 182 50 3
CDI 0 32 13 243 739 477 303 125
VCDI 0 0 0 93 1792 5323 25309 62648

Date: 2020-02-07:

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 70678 14336 151 540 223 38 0 0
OW 52 511 66 444 257 24 0 0
VODI 0 150 40 523 535 142 4 0
ODI 0 42 9 200 680 236 101 0
CDI 0 23 7 91 655 694 234 16
VCDI 0 0 2 58 1044 5476 26763 62003
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 70678 14041 144 582 322 49 0 0
OW 52 573 43 320 255 61 1 0
VODI 0 337 62 405 398 154 48 0
ODI 0 93 16 295 472 157 108 0
CDI 0 16 8 208 744 583 319 50
VCDI 0 2 2 46 1203 5606 26626 61969


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