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: 2025-01-28

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

Model vs. observations, sea ice class contingency tables

Date: 2025-01-28:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 18969 15015 91 309 28 4 0 0
OW 41 398 26 153 6 1 0 0
VODI 54 594 39 322 72 24 2 0
ODI 38 657 25 444 202 79 21 0
CDI 42 321 29 534 401 443 547 162
VCDI 6 175 23 670 1510 5090 28661 58317

Date: 2025-01-30:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 20070 14482 104 476 69 1 0 0
OW 23 297 13 114 28 0 0 0
VODI 7 425 15 207 72 8 1 0
ODI 0 420 21 243 164 52 15 0
CDI 0 607 35 491 493 483 501 209
VCDI 0 553 58 872 1706 4677 22801 63732

Date: 2025-02-01:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 19720 14883 74 516 127 2 0 0
OW 0 282 5 112 26 9 0 0
VODI 0 455 4 205 62 29 0 0
ODI 0 350 19 252 162 88 21 0
CDI 0 452 27 484 464 449 323 127
VCDI 0 743 86 1165 2193 6088 25575 58966

Date: 2025-02-03:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 20365 13964 88 466 82 28 0 0
OW 0 285 16 94 36 6 0 0
VODI 0 416 14 193 72 53 14 0
ODI 0 370 18 256 152 154 58 2
CDI 0 573 19 398 616 815 633 236
VCDI 0 973 89 1290 2648 6855 23123 59075


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