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

Validation of sea ice concentration - European sector

Bulletin date: 2025-07-17

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

Model vs. observations, sea ice class contingency tables

Date: 2025-07-11:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 76021 8601 112 121 7 0 0 0
OW 1369 1697 345 323 26 0 0 0
VODI 2812 406 312 1190 243 21 2 0
ODI 0 19 34 465 1099 188 17 0
CDI 0 0 0 40 1496 2266 425 0
VCDI 0 0 0 0 6 2538 661 0
...date precedes bulletin

Date: 2025-07-13:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 76431 8022 41 42 1 0 0 0
OW 1391 1902 341 325 31 0 1 0
VODI 2782 621 396 1056 292 44 8 0
ODI 0 60 61 645 952 186 63 0
CDI 0 9 12 99 1529 4388 211 0
VCDI 0 0 0 0 31 810 79 0
...date precedes bulletin

Date: 2025-07-15:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 78070 7056 56 24 3 0 0 0
OW 1596 2092 465 390 12 0 0 0
VODI 2536 115 321 1404 308 8 0 0
ODI 0 0 7 322 1390 144 3 0
CDI 0 0 0 13 684 5597 64 0
VCDI 0 0 0 0 4 113 65 0
...date precedes bulletin

Date: 2025-07-17:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 77175 7963 72 43 2 0 0 0
OW 1597 1984 449 429 30 0 0 0
VODI 2513 240 364 1290 368 15 0 0
ODI 0 1 13 368 1139 196 12 0
CDI 0 0 0 9 753 5484 211 0
VCDI 0 0 0 0 0 85 57 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 77173 8237 78 43 2 0 0 0
OW 1598 1736 454 459 27 0 0 0
VODI 2514 212 349 1254 374 14 1 0
ODI 0 3 17 371 1120 221 12 0
CDI 0 0 0 12 769 5401 201 0
VCDI 0 0 0 0 0 144 66 0

Date: 2025-07-19:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 79217 6151 58 16 0 0 0 0
OW 1698 1988 395 332 27 0 0 0
VODI 2480 348 410 1097 270 45 4 0
ODI 0 9 27 526 918 188 17 0
CDI 0 0 0 9 761 5217 502 0
VCDI 0 0 0 0 0 134 18 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 79217 6367 55 15 1 0 0 0
OW 1694 1794 415 355 28 1 0 0
VODI 2484 319 377 1038 276 43 7 0
ODI 0 16 43 555 897 258 25 0
CDI 0 0 0 17 774 5119 462 0
VCDI 0 0 0 0 0 163 47 0

Date: 2025-07-21:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 79861 6794 57 16 3 0 0 0
OW 1706 1457 613 420 11 0 0 0
VODI 2359 8 116 1247 362 7 0 0
ODI 0 0 0 100 849 150 0 0
CDI 0 0 0 0 741 4497 177 0
VCDI 0 0 0 0 0 248 1063 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 79763 6150 36 9 2 0 0 0
OW 1716 1767 394 346 33 7 0 0
VODI 2447 322 310 1032 296 61 0 0
ODI 0 20 46 388 793 407 42 0
CDI 0 0 0 8 842 4373 1185 0
VCDI 0 0 0 0 0 54 13 0

Date: 2025-07-23:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 80930 5714 42 25 2 0 0 0
OW 1890 1305 491 418 21 0 0 0
VODI 2330 62 189 1197 286 10 0 0
ODI 0 3 7 179 872 187 10 0
CDI 0 0 0 9 1181 3933 188 0
VCDI 0 0 0 0 0 1070 311 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 80668 5193 34 22 2 0 0 0
OW 2062 1537 326 335 32 2 0 0
VODI 2420 321 303 1033 309 54 3 0
ODI 0 28 62 422 862 505 75 0
CDI 0 5 4 16 1157 4584 401 0
VCDI 0 0 0 0 0 55 30 0

Date: 2025-07-25:

Best estimate Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 81337 5416 39 8 5 0 0 0
OW 1892 1346 366 363 16 0 0 0
VODI 2295 178 254 1052 287 22 0 0
ODI 0 7 18 226 936 326 9 0
CDI 0 0 0 22 982 3925 216 0
VCDI 0 0 0 0 2 1300 17 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 81099 4847 59 42 14 0 0 0
OW 2039 1535 277 320 64 1 0 0
VODI 2386 496 258 904 356 88 14 0
ODI 0 63 77 394 1018 528 67 0
CDI 0 6 6 11 774 4830 161 0
VCDI 0 0 0 0 2 126 0 0


Generated by /metno/routine/sms/V3/SIconcentrationValidation5/SICamsr2webPage5sector.sh Fri Aug 1 02:17:52 UTC 2025 on arcval2

 
See Met Privacy