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

Validation of sea ice concentration - American sector

Bulletin date: 2023-07-25

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

Model vs. observations, sea ice class contingency tables

Date: 2023-07-25:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9041 5344 47 611 219 39 0 0
OW 0 402 22 208 90 37 0 0
VODI 0 395 24 450 349 290 8 0
ODI 0 504 26 1415 1958 1714 46 0
CDI 0 262 36 2002 7127 5265 187 0
VCDI 0 0 0 58 1711 5458 251 0

Date: 2023-07-27:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9377 5852 73 793 314 44 0 0
OW 0 142 4 172 70 28 0 0
VODI 0 337 13 492 369 262 26 0
ODI 0 546 58 1762 2208 1206 273 0
CDI 0 283 37 2237 6417 4003 868 0
VCDI 0 4 0 141 1492 4457 1236 0

Date: 2023-07-29:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9407 6164 75 800 379 30 1 0
OW 0 154 15 181 63 39 3 0
VODI 0 379 14 577 371 262 47 2
ODI 0 667 37 1833 2369 1246 305 20
CDI 0 314 40 1952 5450 3953 1410 69
VCDI 0 15 3 133 1518 3804 1371 124

Date: 2023-07-31:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9556 6536 74 933 298 26 0 0
OW 0 175 12 171 60 36 3 0
VODI 0 418 32 538 349 253 71 36
ODI 0 742 58 2108 2122 1062 394 203
CDI 0 413 46 1870 4799 2928 1695 899
VCDI 0 34 0 188 1294 2076 2332 756


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