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: 2023-09-07

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

Model vs. observations, sea ice class contingency tables

Date: 2023-09-01:

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 9158 5462 699 44 0 0 0 0
OW 0 1836 347 145 0 0 0 0
VODI 0 382 380 1650 605 6 0 0
ODI 0 6 19 501 4384 1088 0 0
CDI 0 0 0 6 1483 3686 176 0
VCDI 0 0 0 0 0 15 4 0
...date precedes bulletin

Date: 2023-09-03:

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 9036 6206 5 3 0 0 0 0
OW 6 2142 190 78 0 0 0 0
VODI 0 394 354 1656 672 5 0 0
ODI 0 11 29 999 4530 767 0 0
CDI 0 0 0 9 1965 3014 10 0
VCDI 0 0 0 0 0 1 0 0
...date precedes bulletin

Date: 2023-09-05:

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 9595 6827 30 8 0 0 0 0
OW 0 1357 308 94 0 0 0 0
VODI 0 93 248 1658 487 3 0 0
ODI 0 0 3 699 5312 554 0 0
CDI 0 0 0 1 914 3620 175 0
VCDI 0 0 0 0 0 72 24 0
...date precedes bulletin

Date: 2023-09-07:

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 9855 6469 91 137 4 0 0 0
OW 0 1320 209 112 0 0 0 0
VODI 0 203 240 1635 540 0 0 0
ODI 0 23 36 558 4138 1795 8 0
CDI 0 0 2 56 1387 3000 148 0
VCDI 0 0 0 0 106 10 0 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 9854 5866 71 83 3 0 0 0
OW 1 1689 189 158 15 0 0 0
VODI 0 356 253 1589 635 4 0 0
ODI 0 98 51 588 3950 1677 19 0
CDI 0 6 14 80 1557 3124 137 0
VCDI 0 0 0 0 15 0 0 0

Date: 2023-09-09:

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 12303 4287 3 0 0 0 0 0
OW 110 1235 164 92 1 0 0 0
VODI 0 345 268 1538 613 1 0 0
ODI 0 36 49 764 4730 1108 0 0
CDI 0 2 1 50 1180 3162 40 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 12066 3868 6 0 0 0 0 0
OW 347 1426 138 107 11 0 0 0
VODI 0 480 262 1485 656 9 0 0
ODI 0 118 63 769 4297 1316 0 0
CDI 0 13 16 83 1560 2946 40 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-11:

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 12705 4571 0 0 0 0 0 0
OW 0 1414 186 77 1 0 0 0
VODI 0 172 279 1836 414 1 0 0
ODI 0 1 5 660 5828 360 0 0
CDI 0 0 0 6 578 2984 4 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 12371 3716 0 0 0 0 0 0
OW 334 1558 69 71 5 0 0 0
VODI 0 676 298 1414 560 5 0 0
ODI 0 189 76 991 4353 947 0 0
CDI 0 19 27 103 1903 2393 4 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-13:

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 12690 4677 8 0 0 0 0 0
OW 0 1423 154 72 2 0 0 0
VODI 0 305 318 1787 376 3 0 0
ODI 0 0 18 714 5684 563 0 0
CDI 0 0 0 10 601 2677 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 12401 3762 8 0 0 0 0 0
OW 289 1585 76 88 12 0 0 0
VODI 0 873 287 1435 405 15 0 0
ODI 0 177 115 962 4518 1018 0 0
CDI 0 8 12 98 1728 2210 0 0
VCDI 0 0 0 0 0 0 0 0

Date: 2023-09-15:

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 12699 4782 1 0 0 0 0 0
OW 0 1367 184 106 4 0 0 0
VODI 0 286 295 1585 507 12 0 0
ODI 0 8 12 529 5286 940 5 0
CDI 0 0 0 1 698 2767 8 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 12470 3762 16 1 0 0 0 0
OW 229 1598 83 153 5 0 0 0
VODI 0 885 286 1266 548 0 0 0
ODI 0 189 101 710 4151 1542 0 0
CDI 0 9 6 91 1791 2177 13 0
VCDI 0 0 0 0 0 0 0 0


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