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: 2021-03-18

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2021-03-12:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 68803 12485 63 248 109 27 9 0
OW 25 1023 44 164 69 8 4 0
VODI 20 1315 72 457 261 50 12 0
ODI 7 796 110 966 1234 420 27 5
CDI 0 54 13 425 1549 3217 2004 202
VCDI 0 0 0 13 95 1809 21092 67742

Date: 2021-03-14:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 68834 11681 68 244 112 23 7 0
OW 75 1699 28 168 78 4 5 0
VODI 32 1407 71 447 214 45 5 0
ODI 11 691 107 1029 988 371 13 1
CDI 0 73 10 409 1621 3491 1659 112
VCDI 0 0 0 1 166 2526 29692 58830

Date: 2021-03-16:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 69114 11328 59 279 103 21 4 0
OW 98 1374 31 151 26 11 5 0
VODI 45 1229 65 487 240 13 4 0
ODI 8 600 89 833 1019 186 30 7
CDI 0 104 17 325 1825 3742 1520 384
VCDI 0 0 0 1 100 1993 24775 64803

Date: 2021-03-18:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 68564 12240 71 244 98 22 4 0
OW 68 904 30 151 31 6 2 0
VODI 39 1039 86 486 202 18 3 1
ODI 2 598 74 780 1016 260 58 9
CDI 0 78 20 350 1821 4842 2479 411
VCDI 0 0 0 0 21 1282 17042 71596

Date: 2021-03-20:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 68240 12376 74 290 131 9 0 0
OW 71 1252 18 106 57 5 0 0
VODI 9 1353 91 363 160 32 0 0
ODI 0 697 105 1122 1010 320 5 1
CDI 0 109 20 494 2564 4290 1677 207
VCDI 0 0 0 0 78 2250 14052 73410

Date: 2021-03-22:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 67807 13110 80 331 109 1 0 0
OW 17 899 31 122 81 4 0 0
VODI 8 1267 79 396 245 15 0 0
ODI 0 650 116 1155 1234 283 5 0
CDI 0 52 28 454 2637 4607 1621 131
VCDI 0 0 0 0 29 1438 17900 70106

Date: 2021-03-24:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 67719 12605 88 267 91 2 0 0
OW 118 1695 27 171 92 4 0 0
VODI 7 1307 95 584 251 32 1 0
ODI 0 672 101 1122 1458 263 21 7
CDI 0 75 24 375 2305 3405 1107 178
VCDI 0 0 0 17 137 2345 20769 67511

Date: 2021-03-26:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 67971 12661 58 289 102 5 0 0
OW 98 1268 42 229 81 8 0 0
VODI 4 1527 89 557 281 38 0 0
ODI 0 604 91 1138 1283 278 5 13
CDI 0 116 22 326 2087 3163 1371 472
VCDI 0 0 0 0 58 2462 15097 73154


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