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: 2023-06-08

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

Model vs. observations, sea ice class contingency tables

Date: 2023-06-02:

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 73420 13819 649 1193 371 51 13 0
OW 50 130 86 570 361 38 14 0
VODI 0 60 36 414 738 186 17 0
ODI 0 56 12 217 1063 692 65 0
CDI 0 70 24 106 907 2473 1249 0
VCDI 0 0 0 37 118 1281 6840 1674
...date precedes bulletin

Date: 2023-06-04:

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 72779 14392 705 1328 421 71 16 0
OW 50 134 85 517 433 66 12 0
VODI 0 58 36 351 848 260 50 0
ODI 0 46 23 225 1098 726 226 0
CDI 0 63 24 99 1003 2167 931 0
VCDI 0 0 3 15 77 1153 6371 2238
...date precedes bulletin

Date: 2023-06-06:

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 75002 12565 644 1210 319 57 2 0
OW 47 110 102 510 294 44 0 0
VODI 0 52 48 441 924 99 10 0
ODI 0 33 28 232 1523 734 64 0
CDI 0 1 7 40 861 2310 1227 0
VCDI 0 0 0 6 41 877 6505 2131
...date precedes bulletin

Date: 2023-06-08:

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 74869 12635 643 1360 359 62 0 0
OW 43 114 92 570 410 40 1 0
VODI 0 60 47 530 1212 120 9 0
ODI 0 38 33 217 1343 679 92 0
CDI 0 2 9 87 880 2335 1129 0
VCDI 0 0 0 0 59 844 6297 1880
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 74869 12648 657 1440 419 58 1 0
OW 43 105 79 510 445 38 0 0
VODI 0 61 46 526 1136 122 10 0
ODI 0 33 32 195 1244 643 86 0
CDI 0 2 10 93 960 2343 1101 0
VCDI 0 0 0 0 59 876 6330 1880

Date: 2023-06-10:

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 74719 12984 647 1473 510 26 0 0
OW 41 139 98 627 584 47 2 0
VODI 0 70 25 557 1193 196 17 0
ODI 0 28 31 171 1143 685 60 0
CDI 0 5 16 115 823 2299 977 6
VCDI 0 0 2 4 78 1614 6163 925
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 74719 13000 659 1586 633 28 0 0
OW 41 116 86 549 612 45 3 0
VODI 0 78 28 517 1012 186 16 0
ODI 0 27 25 168 1088 628 70 0
CDI 0 5 21 126 903 2357 964 6
VCDI 0 0 0 1 83 1623 6166 925

Date: 2023-06-12:

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 75592 12255 677 1471 405 20 0 0
OW 38 133 128 585 309 35 2 0
VODI 0 39 62 775 1081 55 5 0
ODI 0 0 1 185 1800 585 27 0
CDI 0 2 8 44 685 2179 829 0
VCDI 0 0 0 0 40 2394 6319 335
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75592 12189 749 2042 786 45 0 0
OW 38 126 57 491 691 59 12 0
VODI 0 76 37 341 1124 190 21 0
ODI 0 35 18 115 921 624 82 0
CDI 0 3 15 71 738 1921 1309 0
VCDI 0 0 0 0 60 2429 5758 335

Date: 2023-06-14:

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 75493 12497 727 1789 421 29 3 0
OW 24 87 104 872 490 22 4 0
VODI 0 42 69 680 1233 127 13 0
ODI 0 0 2 97 1197 443 42 0
CDI 0 3 7 48 709 2340 1008 0
VCDI 0 0 0 0 12 373 5985 2108
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75493 12393 758 2539 845 45 9 0
OW 24 134 93 496 716 80 4 0
VODI 0 62 26 278 1001 198 30 0
ODI 0 33 21 109 808 461 103 0
CDI 0 7 11 64 681 2121 1369 0
VCDI 0 0 0 0 11 429 5540 2108

Date: 2023-06-16:

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 75707 12641 767 1869 454 17 0 0
OW 20 120 156 986 548 28 9 0
VODI 0 52 60 480 1215 151 20 0
ODI 0 0 2 76 874 517 29 0
CDI 0 6 8 62 878 2045 1194 0
VCDI 0 0 0 0 0 118 5307 2684
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75705 12576 856 2623 935 70 11 0
OW 22 126 76 396 652 82 11 0
VODI 0 57 26 296 892 234 28 0
ODI 0 45 17 68 620 492 111 0
CDI 0 15 18 90 863 1815 1464 21
VCDI 0 0 0 0 7 183 4934 2663


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