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: 2020-10-08

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

Model vs. observations, sea ice class contingency tables

Date: 2020-10-02:

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 132305 16918 153 754 347 5 0 0
OW 3 1107 75 489 716 69 0 0
VODI 0 308 61 787 918 371 23 0
ODI 0 3 6 323 1237 719 264 0
CDI 0 0 0 8 870 1559 1143 0
VCDI 0 0 0 0 137 7639 14238 3493
...date precedes bulletin

Date: 2020-10-04:

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 130132 18249 142 659 340 16 0 0
OW 6 1554 101 680 528 129 6 0
VODI 0 270 71 1178 821 275 51 0
ODI 0 0 0 255 1364 756 116 0
CDI 0 0 0 41 765 1975 498 8
VCDI 0 0 0 0 97 6566 10522 8877
...date precedes bulletin

Date: 2020-10-06:

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 129211 19426 212 983 231 0 0 0
OW 1 491 79 602 593 2 0 0
VODI 0 43 31 998 1228 134 0 0
ODI 0 0 0 97 1797 577 19 0
CDI 0 0 0 4 614 2802 213 25
VCDI 0 0 0 0 146 5111 14421 6957
...date precedes bulletin

Date: 2020-10-08:

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 128082 19534 172 766 266 0 0 0
OW 1 801 107 698 694 56 0 0
VODI 0 121 45 922 1076 355 0 0
ODI 0 0 3 139 1400 675 67 0
CDI 0 0 0 10 553 1986 913 0
VCDI 0 0 0 0 162 3854 12403 11187
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 128082 19590 173 784 358 2 0 0
OW 1 700 98 627 550 37 0 0
VODI 0 166 50 934 1009 300 0 0
ODI 0 0 6 181 1413 775 53 0
CDI 0 0 0 9 627 1825 893 0
VCDI 0 0 0 0 194 3987 12437 11187

Date: 2020-10-10:

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 127609 18882 171 700 277 34 0 0
OW 9 690 76 726 585 273 4 0
VODI 0 174 53 514 1191 586 60 0
ODI 0 7 6 195 1026 832 173 0
CDI 0 3 0 12 540 1572 757 2
VCDI 0 0 0 0 124 3405 17026 8754
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 127612 19051 182 771 433 81 0 0
OW 6 521 63 569 370 196 3 0
VODI 0 177 58 600 1184 503 54 0
ODI 0 6 3 191 1058 788 142 0
CDI 0 1 0 16 541 1517 540 0
VCDI 0 0 0 0 157 3617 17281 8756

Date: 2020-10-12:

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 125372 20118 228 1061 115 0 0 0
OW 3 331 80 792 352 2 0 0
VODI 0 27 15 567 1017 56 0 0
ODI 0 8 1 57 1601 428 0 0
CDI 0 7 0 3 394 3437 191 0
VCDI 0 0 0 0 43 4985 16171 9586
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 125373 19791 200 1304 491 45 0 0
OW 2 574 83 540 554 173 0 0
VODI 0 106 37 491 1086 563 6 0
ODI 0 13 4 125 870 1066 100 0
CDI 0 7 0 20 385 1606 405 0
VCDI 0 0 0 0 136 5455 15851 9586

Date: 2020-10-14:

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 123015 20714 271 1467 520 2 0 0
OW 15 584 68 525 721 61 0 0
VODI 0 114 39 314 950 331 0 0
ODI 0 9 3 184 737 709 65 0
CDI 0 1 1 30 485 1711 901 0
VCDI 0 0 0 1 134 4675 12828 14863
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 123003 20178 228 1290 796 42 0 0
OW 27 983 79 535 724 354 29 0
VODI 0 225 51 380 869 703 273 0
ODI 0 33 22 187 522 823 400 0
CDI 0 3 2 112 358 956 942 13
VCDI 0 0 0 17 278 4611 12150 14850

Date: 2020-10-16:

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 123705 19279 210 1320 311 5 0 0
OW 14 739 80 753 665 30 0 0
VODI 17 296 47 392 1066 181 0 0
ODI 0 31 8 179 873 495 5 0
CDI 0 1 2 76 470 1333 404 0
VCDI 0 0 0 5 347 5462 16529 11718
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 123631 18918 213 1508 658 43 0 0
OW 90 1073 68 572 806 195 0 0
VODI 15 268 43 296 1139 685 227 0
ODI 0 65 14 178 419 823 436 0
CDI 0 22 9 94 321 727 914 0
VCDI 0 0 0 77 389 5033 15361 11718


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