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

Validation of sea ice concentration - Full domain

Reference date: 2021-10-21

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2021-10-15:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 110917 16570 138 643 175 0 0 0
OW 203 2645 117 617 285 73 0 0
VODI 7 1319 173 1621 2125 326 41 0
ODI 0 98 35 437 1358 1167 279 2
CDI 0 2 0 98 809 4348 2664 44
VCDI 0 0 0 5 31 920 13037 23719

Date: 2021-10-17:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 108783 16210 211 852 292 5 0 0
OW 398 2727 109 640 332 51 0 0
VODI 22 849 117 1349 1989 753 27 0
ODI 3 94 23 335 1677 2186 341 3
CDI 0 27 15 142 759 5631 2649 29
VCDI 0 0 0 7 36 1325 11894 24156

Date: 2021-10-19:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 108230 13137 228 1478 591 72 0 0
OW 241 3458 112 848 407 101 0 0
VODI 29 809 122 1153 1417 607 23 0
ODI 2 39 11 313 1568 2961 557 0
CDI 0 12 3 57 880 5627 4372 14
VCDI 0 1 0 0 12 1491 13877 22188

Date: 2021-10-21:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 107727 12481 193 1072 471 80 0 0
OW 312 2489 101 724 495 315 4 0
VODI 32 944 148 1547 1886 808 19 0
ODI 0 127 30 609 1492 1840 326 0
CDI 0 38 7 64 1450 5696 3053 78
VCDI 0 0 0 0 20 2851 15134 22385

Date: 2021-10-23:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 105664 12783 161 947 271 72 0 0
OW 977 1800 64 608 620 236 0 0
VODI 37 894 123 1054 1974 1597 59 0
ODI 0 124 27 542 1684 2151 461 0
CDI 0 8 2 63 1286 5490 3848 200
VCDI 0 0 0 0 44 2095 13856 25226

Date: 2021-10-25:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 104198 12357 157 1126 446 34 0 0
OW 476 2245 63 470 398 100 17 0
VODI 70 711 109 1127 1781 944 36 0
ODI 0 23 14 402 1824 2892 601 8
CDI 0 0 0 18 903 6172 4614 388
VCDI 0 0 0 0 4 1243 13686 27391

Date: 2021-10-27:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 103063 12802 146 961 517 355 0 0
OW 376 1771 44 365 324 246 4 0
VODI 155 627 62 766 1161 1004 75 0
ODI 2 30 9 285 1142 2570 564 3
CDI 0 4 2 29 708 7258 5154 210
VCDI 0 0 0 0 25 1150 13018 30061

Date: 2021-10-29:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 101649 13426 148 802 575 105 49 0
OW 177 1634 68 505 345 252 72 0
VODI 97 644 61 702 880 1079 139 0
ODI 1 47 12 263 879 2317 761 0
CDI 0 0 0 46 466 6457 6873 57
VCDI 0 0 0 3 32 963 14468 29994


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