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: 2023-09-14

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

Model vs. observations, sea ice class contingency tables

Date: 2023-09-08:

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 10608 5883 34 11 0 0 0 0
OW 131 1192 182 120 0 0 0 0
VODI 0 296 255 1652 506 0 0 0
ODI 0 38 41 695 4268 1693 0 0
CDI 0 0 2 55 1290 3083 24 0
VCDI 0 0 0 0 23 0 0 0
...date precedes bulletin

Date: 2023-09-10:

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 12554 4124 0 0 0 0 0 0
OW 92 1345 120 64 0 0 0 0
VODI 0 445 332 1518 485 2 0 0
ODI 0 65 51 860 5040 588 0 0
CDI 0 0 0 52 1452 2870 14 0
VCDI 0 0 0 0 0 9 0 0
...date precedes bulletin

Date: 2023-09-12:

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 12383 4962 0 0 0 0 0 0
OW 0 1424 151 76 0 0 0 0
VODI 0 237 352 1815 348 0 0 0
ODI 0 3 9 764 5656 438 0 0
CDI 0 0 1 7 631 2825 0 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2023-09-14:

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 12773 4663 0 0 0 0 0 0
OW 0 1403 169 78 1 0 0 0
VODI 0 289 336 1690 460 3 0 0
ODI 0 5 10 668 5523 877 0 0
CDI 0 0 0 7 670 2457 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 12773 4834 9 2 0 0 0 0
OW 0 1228 171 91 4 0 0 0
VODI 0 293 325 1677 456 6 0 0
ODI 0 5 10 666 5412 889 0 0
CDI 0 0 0 7 782 2442 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-16:

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 12721 4696 2 0 0 0 0 0
OW 0 1428 166 96 7 0 0 0
VODI 0 323 326 1497 464 14 0 0
ODI 0 8 18 531 4703 1126 20 0
CDI 0 0 0 1 706 3203 26 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 12721 4829 4 2 0 0 0 0
OW 0 1273 169 129 16 1 0 0
VODI 0 348 321 1471 440 19 0 0
ODI 0 5 18 521 4727 1333 46 0
CDI 0 0 0 2 697 2990 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-18:

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 12693 4948 17 2 0 0 0 0
OW 0 1138 277 134 3 0 0 0
VODI 0 132 236 1438 265 2 0 0
ODI 0 0 1 331 3241 289 0 0
CDI 0 0 0 0 1255 5121 2 0
VCDI 0 0 0 0 0 457 100 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12693 4499 11 3 0 0 0 0
OW 0 1341 196 165 24 0 0 0
VODI 0 377 310 1393 540 33 0 0
ODI 0 1 14 344 3253 1791 39 0
CDI 0 0 0 0 947 4045 63 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-20:

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 12648 4840 5 0 0 0 0 0
OW 0 1197 234 153 5 0 0 0
VODI 0 133 176 1216 404 2 0 0
ODI 0 7 13 284 2553 492 1 0
CDI 0 0 0 34 1834 5342 94 0
VCDI 0 0 0 0 10 355 50 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12648 4348 5 0 0 0 0 0
OW 0 1367 152 171 7 0 0 0
VODI 0 431 235 1219 714 52 0 0
ODI 0 31 36 285 2828 1199 8 0
CDI 0 0 0 12 1257 4940 137 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-22:

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 13127 4487 20 3 0 0 0 0
OW 0 1092 175 185 69 14 0 0
VODI 0 194 177 735 415 236 0 0
ODI 0 14 25 280 1824 660 10 0
CDI 0 0 0 38 642 6088 363 0
VCDI 0 0 0 0 6 854 349 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13127 3966 12 6 0 0 0 0
OW 0 1158 147 188 75 8 0 0
VODI 0 591 190 693 741 255 0 0
ODI 0 55 41 315 1367 895 0 0
CDI 0 17 7 39 773 6682 722 0
VCDI 0 0 0 0 0 12 0 0


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