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

Validation of sea ice concentration - Asian sector

Reference date: 2025-06-12

Model: GLO MFC - NEMO

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

Model vs. observations, sea ice class contingency tables

Date: 2025-06-06:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 5 1759 98 193 1 0 0 0
OW 0 95 39 90 1 0 0 0
VODI 0 493 156 558 149 5 0 0
ODI 0 296 97 704 2004 459 54 0
CDI 0 3 4 80 946 4033 2151 22
VCDI 0 0 0 0 20 747 6514 10306

Date: 2025-06-08:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 114 1955 119 111 0 0 0 0
OW 0 112 39 97 1 0 0 0
VODI 0 531 173 617 142 4 6 0
ODI 0 252 118 828 2426 343 54 0
CDI 0 6 4 75 978 4073 1624 58
VCDI 0 0 0 0 13 833 6885 9491

Date: 2025-06-10:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 158 2157 148 151 1 0 0 0
OW 0 97 43 140 7 1 0 0
VODI 0 537 160 660 217 29 0 0
ODI 0 254 125 796 2124 622 35 0
CDI 0 3 11 84 951 4221 1853 1
VCDI 0 0 0 0 37 310 6433 9716

Date: 2025-06-12:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 228 2397 177 208 1 0 0 0
OW 0 90 59 199 21 0 0 0
VODI 0 466 162 610 271 33 6 0
ODI 0 206 92 808 2006 660 69 0
CDI 0 18 11 62 865 4181 2056 0
VCDI 0 0 0 0 53 489 5720 9858

Date: 2025-06-14:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 210 2558 194 284 3 0 0 0
OW 0 64 59 203 35 0 0 0
VODI 0 496 165 663 333 34 4 0
ODI 0 175 72 754 2085 545 62 0
CDI 0 22 8 76 908 3776 1800 0
VCDI 0 0 0 0 71 988 7178 8257

Date: 2025-06-16:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 216 2702 197 274 2 0 0 0
OW 0 117 70 214 23 0 0 0
VODI 0 480 140 755 316 36 1 0
ODI 0 165 71 706 2229 457 54 0
CDI 0 20 6 79 667 3650 2201 1
VCDI 0 0 0 0 17 581 6602 9033

Date: 2025-06-18:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 214 3061 202 218 6 0 0 0
OW 0 171 87 291 17 0 0 0
VODI 0 427 132 780 400 45 0 0
ODI 0 149 63 636 2251 377 34 0
CDI 0 3 5 98 938 3994 1763 0
VCDI 0 0 0 0 79 1270 5705 8666

Date: 2025-06-20:

Best estimate
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 454 3328 217 205 6 0 0 0
OW 0 215 148 289 26 0 0 0
VODI 0 375 150 740 401 53 0 0
ODI 0 167 84 692 1583 721 54 0
CDI 0 12 12 152 966 4765 1985 21
VCDI 0 0 0 4 47 737 5829 7644


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