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

Validation of sea ice concentration - Full domain

Bulletin date: 2025-02-04

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

Model vs. observations, sea ice class contingency tables

Date: 2025-02-04:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 18741 14741 87 419 30 6 0 0
OW 17 490 8 123 18 3 0 0
VODI 26 1030 16 261 82 28 2 0
ODI 8 758 35 413 264 146 83 7
CDI 1 701 64 658 824 796 859 244
VCDI 0 278 43 852 2727 6458 26740 55458

Date: 2025-02-06:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 18132 15720 106 668 158 0 18 0
OW 0 363 11 141 45 0 3 0
VODI 0 503 24 242 66 12 1 0
ODI 0 534 24 259 188 57 14 6
CDI 0 580 31 424 701 791 573 293
VCDI 0 680 82 1242 2592 6153 23696 59412

Date: 2025-02-08:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 19631 13714 117 787 240 28 0 0
OW 8 310 12 144 69 9 0 0
VODI 3 463 6 205 194 31 0 0
ODI 9 361 12 208 218 125 25 7
CDI 14 716 53 434 765 873 613 183
VCDI 0 758 131 1300 2237 6588 22351 60593

Date: 2025-02-10:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 18673 14652 129 770 98 28 0 0
OW 0 257 11 148 36 10 0 0
VODI 0 385 20 287 97 26 3 0
ODI 0 317 18 270 223 94 6 12
CDI 0 385 37 383 639 631 557 218
VCDI 0 535 83 1440 2661 6687 22155 61564


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