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: 2021-01-21

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2021-01-15:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73940 12144 85 248 35 0 0 0
OW 1 1069 54 393 145 0 0 0
VODI 0 1326 95 928 1615 161 1 0
ODI 0 541 100 1056 1341 780 35 57
CDI 0 42 3 219 1270 5189 2844 530
VCDI 0 15 2 46 197 3488 23085 53968

Date: 2021-01-17:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73658 11838 48 153 15 0 0 0
OW 0 1512 63 352 104 0 0 0
VODI 0 1283 95 771 1174 193 0 0
ODI 0 334 61 1070 2185 932 73 5
CDI 0 27 3 179 1513 4820 2466 354
VCDI 0 0 0 0 59 3254 26009 52445

Date: 2021-01-19:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73788 11859 61 153 10 0 0 0
OW 69 1554 60 340 92 0 0 0
VODI 5 1467 92 685 724 59 5 2
ODI 0 420 61 869 1793 1156 21 2
CDI 0 39 16 221 1578 4527 1187 67
VCDI 0 0 0 2 107 3507 22009 58441

Date: 2021-01-21:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73227 12243 52 158 17 0 0 0
OW 160 1595 53 381 124 0 0 0
VODI 0 1346 95 615 699 65 4 1
ODI 0 337 63 654 1057 1224 39 10
CDI 0 60 21 340 1287 4342 2251 384
VCDI 0 0 0 9 152 2000 21195 60788

Date: 2021-01-23:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73137 12404 67 209 42 0 0 0
OW 87 1326 60 361 171 3 0 0
VODI 0 1172 84 704 639 120 1 1
ODI 0 290 55 606 1042 920 31 3
CDI 0 69 31 279 1292 3743 3347 259
VCDI 0 0 0 24 160 1824 18499 63986

Date: 2021-01-25:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73442 11504 63 224 50 5 0 0
OW 196 1931 56 260 63 6 0 0
VODI 32 999 84 690 578 35 0 2
ODI 5 298 53 600 1108 794 18 7
CDI 4 76 24 226 1265 3812 1695 116
VCDI 13 48 0 22 255 2065 21239 63085

Date: 2021-01-27:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73107 11448 51 196 58 10 0 0
OW 98 1931 38 215 79 6 0 0
VODI 19 922 79 657 564 98 0 2
ODI 0 344 82 530 885 591 8 10
CDI 0 30 25 272 1382 3964 1537 417
VCDI 0 1 1 37 114 1543 18619 67078

Date: 2021-01-29:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 72112 12198 47 170 44 14 0 0
OW 84 1952 54 180 44 1 1 0
VODI 32 1173 103 622 364 35 3 3
ODI 0 385 46 487 1097 309 18 12
CDI 0 75 47 303 1196 3812 1309 569
VCDI 0 3 9 55 213 1716 18017 68134


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