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

Validation of sea ice concentration - Asian sector

Bulletin date: 2024-08-29

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

Model vs. observations, sea ice class contingency tables

Date: 2024-08-23:

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 10427 4191 9 0 0 0 0 0
OW 0 1928 381 170 2 0 0 0
VODI 0 432 464 1860 404 11 0 0
ODI 0 7 15 647 5546 1449 4 0
CDI 0 0 0 11 793 3328 3 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2024-08-25:

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 10476 4186 11 0 0 0 0 0
OW 0 1943 398 196 4 0 0 0
VODI 0 474 444 1759 367 12 0 0
ODI 0 16 19 794 5717 1408 27 0
CDI 0 0 0 13 326 3460 32 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2024-08-27:

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 10900 4839 3 0 0 0 0 0
OW 0 1763 460 199 1 0 0 0
VODI 0 184 300 1634 273 0 0 0
ODI 0 2 13 634 5398 801 0 0
CDI 0 0 0 6 1086 3415 0 0
VCDI 0 0 0 0 0 165 6 0
...date precedes bulletin

Date: 2024-08-29:

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 11593 4498 9 1 0 0 0 0
OW 0 1947 243 90 2 0 0 0
VODI 0 366 332 1419 246 2 0 0
ODI 0 43 29 892 5472 403 0 0
CDI 0 6 8 21 1361 3089 1 0
VCDI 0 0 0 0 0 9 0 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11593 4596 7 0 0 0 0 0
OW 0 1841 261 94 1 0 0 0
VODI 0 374 316 1420 379 2 0 0
ODI 0 43 29 884 5238 446 0 0
CDI 0 6 8 25 1463 3023 1 0
VCDI 0 0 0 0 0 32 0 0

Date: 2024-08-31:

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 11707 4506 13 0 0 0 0 0
OW 0 1855 241 156 0 0 0 0
VODI 0 374 317 1399 225 0 0 0
ODI 0 51 32 1047 5141 667 0 0
CDI 0 9 3 17 772 3541 9 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11705 4606 16 0 0 0 0 0
OW 2 1763 259 189 0 0 0 0
VODI 0 374 296 1396 434 0 0 0
ODI 0 49 32 1017 4838 752 0 0
CDI 0 3 3 17 866 3456 9 0
VCDI 0 0 0 0 0 0 0 0

Date: 2024-09-02:

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 11673 5410 24 8 0 0 0 0
OW 0 1436 384 266 7 0 0 0
VODI 0 104 142 1524 334 0 0 0
ODI 0 2 6 890 5811 791 0 0
CDI 0 0 0 0 733 2537 0 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11670 4697 24 6 0 0 0 0
OW 3 1748 224 254 60 0 0 0
VODI 0 441 264 1295 538 3 0 0
ODI 0 63 41 1104 4796 562 0 0
CDI 0 3 3 29 1491 2763 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2024-09-04:

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 11532 5293 169 1 0 0 0 0
OW 0 1534 342 222 0 0 0 0
VODI 0 133 192 1531 352 0 0 0
ODI 0 0 6 653 5156 1519 0 0
CDI 0 0 0 0 379 3068 0 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 11532 4621 178 6 0 0 0 0
OW 0 1800 286 336 1 0 0 0
VODI 0 486 205 1160 648 14 0 0
ODI 0 53 40 876 4425 1146 0 0
CDI 0 0 0 29 813 3427 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2024-09-06:

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 12256 4849 7 0 0 0 0 0
OW 0 1677 246 109 0 0 0 0
VODI 0 166 276 1361 359 0 0 0
ODI 0 1 6 400 5141 1520 0 0
CDI 0 0 0 0 512 3190 6 0
VCDI 0 0 0 0 0 0 0 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12256 4190 14 0 0 0 0 0
OW 0 2045 272 223 2 0 0 0
VODI 0 443 219 1151 658 4 0 0
ODI 0 15 30 482 4415 1124 0 0
CDI 0 0 0 14 937 3582 6 0
VCDI 0 0 0 0 0 0 0 0


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