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: 2021-10-28

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2021-10-22:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 106678 12717 163 1003 487 102 0 0
OW 513 2020 83 652 573 297 49 0
VODI 32 864 133 1348 2153 1257 86 0
ODI 0 112 40 572 1450 1902 384 0
CDI 0 19 4 95 1296 5595 3153 190
VCDI 0 0 0 0 19 2509 13367 25131

Date: 2021-10-24:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 105562 11770 129 859 283 46 20 0
OW 1027 2139 69 554 464 142 6 0
VODI 71 787 123 1089 1931 1052 95 0
ODI 0 89 14 472 1938 2691 562 1
CDI 0 2 1 29 1145 5635 4462 181
VCDI 0 0 0 1 52 1985 14482 25088

Date: 2021-10-26:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 103589 12362 168 981 636 74 0 0
OW 768 1778 45 404 441 137 17 0
VODI 171 665 60 929 1458 1051 41 0
ODI 2 28 12 289 1421 2903 558 10
CDI 0 1 1 15 782 6743 4801 359
VCDI 0 0 0 0 8 1280 13368 28692

Date: 2021-10-28:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 102042 13799 164 948 413 156 70 0
OW 320 1327 46 449 426 349 19 0
VODI 67 643 65 734 841 1180 93 0
ODI 1 44 13 296 958 2441 534 0
CDI 0 1 0 40 566 7090 5959 159
VCDI 0 0 0 5 43 1022 14263 29462

Date: 2021-10-30:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 101273 13068 143 664 667 81 0 0
OW 173 1760 74 551 293 65 129 0
VODI 77 672 62 794 901 793 338 0
ODI 0 60 10 212 913 1837 1141 0
CDI 0 1 0 41 407 5391 7640 62
VCDI 0 0 0 0 25 854 14476 31400

Date: 2021-11-01:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 97001 15826 121 579 396 134 0 0
OW 421 2072 99 634 228 144 18 0
VODI 58 773 86 984 944 345 309 8
ODI 2 126 13 251 1279 878 709 305
CDI 0 17 0 30 590 5997 5351 994
VCDI 0 1 0 0 28 1440 16267 31590

Date: 2021-11-03:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 98189 13668 119 636 329 3 3 0
OW 321 2486 90 910 352 27 12 0
VODI 50 654 76 963 1074 259 34 0
ODI 0 219 40 416 1427 953 91 64
CDI 0 67 5 69 935 6140 3023 802
VCDI 0 0 0 0 56 3808 20884 27794

Date: 2021-11-05:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 97045 13749 118 385 58 3 0 0
OW 206 2731 97 565 375 73 0 0
VODI 26 894 93 1367 1307 276 33 0
ODI 0 167 32 485 1656 934 75 0
CDI 0 43 7 144 1149 6875 2078 10
VCDI 0 1 0 7 153 4800 22092 26939


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