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

Validation of sea ice concentration - European sector

Bulletin date: 2020-09-03

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

Model vs. observations, sea ice class contingency tables

Date: 2020-08-28:

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 95328 5265 25 124 13 0 0 0
OW 0 254 35 365 70 0 0 0
VODI 0 55 23 702 395 10 0 0
ODI 0 0 0 117 1215 892 72 0
CDI 0 0 0 0 286 2641 1212 0
VCDI 0 0 0 0 0 1 0 0
...date precedes bulletin

Date: 2020-08-30:

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 96415 4333 10 52 7 0 0 0
OW 0 443 43 230 65 0 0 0
VODI 0 182 43 616 275 3 0 0
ODI 0 2 1 280 1631 299 0 0
CDI 0 0 0 4 346 3471 349 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2020-09-01:

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 96413 4969 22 74 7 0 0 0
OW 0 274 47 268 27 0 0 0
VODI 0 32 20 565 292 2 0 0
ODI 0 0 0 89 1749 211 0 0
CDI 0 0 0 0 666 3373 0 0
VCDI 0 0 0 0 0 0 0 0
...date precedes bulletin

Date: 2020-09-03:

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 97058 4458 11 29 1 0 0 0
OW 0 448 49 153 23 0 0 0
VODI 0 103 25 516 287 0 0 0
ODI 0 7 6 88 1342 260 2 0
CDI 0 0 0 7 710 3134 383 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 97058 4620 20 52 1 0 0 0
OW 0 282 44 201 28 0 0 0
VODI 0 104 20 434 318 0 0 0
ODI 0 10 7 96 1266 314 12 0
CDI 0 0 0 10 750 3080 373 0
VCDI 0 0 0 0 0 0 0 0

Date: 2020-09-05:

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 96873 4548 13 52 1 0 0 0
OW 0 473 28 200 26 0 0 0
VODI 0 141 32 479 292 0 0 0
ODI 0 14 3 82 1094 335 6 0
CDI 0 0 1 6 530 2727 1144 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 96873 4757 23 113 2 0 0 0
OW 0 280 24 211 39 0 0 0
VODI 0 123 25 390 336 1 0 0
ODI 0 16 4 97 1041 368 48 0
CDI 0 0 1 8 525 2693 1102 0
VCDI 0 0 0 0 0 0 0 0

Date: 2020-09-07:

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 96850 4671 17 46 1 0 0 0
OW 0 408 32 187 7 0 0 0
VODI 0 124 30 410 124 0 0 0
ODI 0 20 3 62 1144 45 0 0
CDI 0 2 1 0 303 2728 743 0
VCDI 0 0 0 0 0 41 1101 0
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 96850 4646 22 148 2 0 0 0
OW 0 330 28 180 28 4 0 0
VODI 0 202 22 271 361 16 0 0
ODI 0 45 9 96 837 387 49 0
CDI 0 2 2 10 351 2406 1785 0
VCDI 0 0 0 0 0 1 10 0

Date: 2020-09-09:

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 97326 4206 12 49 0 0 0 0
OW 0 454 25 106 14 0 0 0
VODI 0 200 32 303 83 2 0 0
ODI 0 33 6 184 437 319 1 0
CDI 0 2 2 11 216 2004 1443 0
VCDI 0 0 0 0 0 82 1546 2
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 97326 4164 19 81 0 0 0 0
OW 0 381 27 132 22 0 0 0
VODI 0 283 18 293 200 41 0 0
ODI 0 56 10 134 375 461 70 0
CDI 0 11 3 12 146 1758 2506 0
VCDI 0 0 0 1 7 147 414 2

Date: 2020-09-11:

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 96994 4349 11 89 14 0 0 0
OW 0 461 20 171 17 0 0 0
VODI 0 251 29 246 62 8 0 0
ODI 0 35 7 211 365 79 7 0
CDI 0 1 0 17 300 1872 544 0
VCDI 0 0 0 0 0 357 1860 723
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 96994 4399 11 134 4 0 0 0
OW 0 353 26 189 37 0 0 0
VODI 0 272 22 258 191 34 0 0
ODI 0 66 6 128 412 238 0 0
CDI 0 7 2 24 113 1792 1457 3
VCDI 0 0 0 1 1 252 954 720


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