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

Validation of sea ice concentration - Asian sector

Bulletin date: 2023-09-21

Data source: OSI SAF N.H. multi-product sea ice concentration

Model vs. observations, sea ice class contingency tables

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 13952 4457 8 0 0 0 0 0
OW 0 1270 227 185 2 0 0 0
VODI 0 94 199 2054 363 4 0 0
ODI 0 0 0 245 5606 949 0 0
CDI 0 0 0 1 587 2893 0 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2023-09-17:

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 14025 4165 7 2 0 0 0 0
OW 0 1388 198 180 4 0 0 0
VODI 0 150 265 1850 400 15 0 0
ODI 0 0 0 381 3937 1508 27 0
CDI 0 0 0 0 697 3620 277 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2023-09-19:

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 14148 4341 2 0 0 0 0 0
OW 0 1047 353 159 0 0 0 0
VODI 0 10 97 1667 286 1 0 0
ODI 0 0 0 177 2813 667 0 0
CDI 0 0 0 2 1109 5603 133 0
VCDI 0 0 0 0 0 435 46 0
...date precedes bulletin

Date: 2023-09-21:

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 13616 4827 24 3 0 0 0 0
OW 0 1013 302 281 0 0 0 0
VODI 0 24 107 1193 518 2 0 0
ODI 0 0 0 169 2248 591 0 0
CDI 0 0 0 8 884 5795 887 0
VCDI 0 0 0 0 0 433 171 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13616 4941 28 13 0 0 0 0
OW 0 894 309 266 0 0 0 0
VODI 0 29 96 1174 626 0 0 0
ODI 0 0 0 185 2151 831 0 0
CDI 0 0 0 16 870 5050 696 0
VCDI 0 0 0 0 3 940 362 0

Date: 2023-09-23:

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 14210 4334 34 11 0 0 0 0
OW 0 857 210 371 46 31 0 0
VODI 0 95 130 723 529 200 75 0
ODI 0 0 1 245 1785 470 166 0
CDI 0 0 0 19 290 4472 1948 0
VCDI 0 0 0 0 0 313 1531 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14210 4438 53 24 0 0 0 0
OW 0 759 178 371 48 12 0 0
VODI 0 87 142 694 609 211 75 0
ODI 0 2 2 248 1625 584 262 0
CDI 0 0 0 32 368 4073 1453 0
VCDI 0 0 0 0 0 606 1930 0

Date: 2023-09-25:

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 14224 4709 40 3 0 0 0 0
OW 0 693 332 217 0 0 0 0
VODI 0 2 30 1017 211 0 0 0
ODI 0 0 0 57 2148 88 0 0
CDI 0 0 0 0 219 2865 314 0
VCDI 0 0 0 0 0 674 4623 630
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14224 4430 51 26 0 0 0 0
OW 0 763 179 325 50 0 0 0
VODI 0 209 166 666 591 241 2 0
ODI 0 2 6 272 1607 686 71 0
CDI 0 0 0 5 330 2217 2217 0
VCDI 0 0 0 0 0 483 2647 630

Date: 2023-09-27:

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 14091 4837 26 4 0 0 0 0
OW 0 831 281 168 3 0 0 0
VODI 0 42 101 909 267 1 0 0
ODI 0 1 12 201 1956 208 2 0
CDI 0 0 0 64 408 2355 883 0
VCDI 0 0 0 1 195 856 4190 203
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14091 4538 43 36 2 0 0 0
OW 0 867 175 314 75 0 0 0
VODI 0 301 186 672 804 13 0 0
ODI 0 5 16 322 1707 914 12 0
CDI 0 0 0 3 241 2312 3090 15
VCDI 0 0 0 0 0 181 1973 188

Date: 2023-09-29:

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 13888 4545 51 35 10 0 0 0
OW 0 795 214 371 23 2 0 0
VODI 0 76 63 658 431 31 0 0
ODI 0 11 22 98 1156 802 3 0
CDI 0 0 7 92 311 1983 964 0
VCDI 0 0 0 0 137 435 4054 1828
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13888 4444 108 102 31 0 0 0
OW 0 750 101 390 223 22 0 0
VODI 0 232 144 592 537 483 2 0
ODI 0 1 4 170 928 979 267 0
CDI 0 0 0 0 349 1769 3632 676
VCDI 0 0 0 0 0 0 1120 1152


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