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

Validation of sea ice concentration - European sector

Bulletin date: 2022-04-07

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

Model vs. observations, sea ice class contingency tables

Date: 2022-04-01:

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 59497 21217 1908 774 256 132 93 0
OW 52 315 273 450 336 81 42 0
VODI 0 117 187 349 433 244 97 0
ODI 0 43 57 222 335 431 253 0
CDI 0 13 17 97 410 704 586 0
VCDI 0 0 0 105 691 2857 9192 6234
...date precedes bulletin

Date: 2022-04-03:

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 60461 20596 1793 793 285 123 87 0
OW 52 356 266 361 277 115 44 0
VODI 0 192 215 228 373 263 107 0
ODI 0 81 81 237 229 347 259 0
CDI 0 25 16 150 328 559 500 0
VCDI 0 1 1 70 514 2846 10136 5733
...date precedes bulletin

Date: 2022-04-05:

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 60656 20805 1755 714 191 70 82 0
OW 52 233 256 397 244 71 26 0
VODI 0 113 167 350 369 185 49 0
ODI 0 49 55 290 456 328 151 0
CDI 0 9 3 115 422 943 496 0
VCDI 0 2 4 76 431 2520 10077 5888
...date precedes bulletin

Date: 2022-04-07:

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 63751 18087 1266 728 267 91 105 0
OW 52 249 207 369 254 114 60 0
VODI 0 123 131 311 389 203 100 0
ODI 0 24 59 254 348 378 205 0
CDI 0 8 18 120 435 897 487 0
VCDI 0 2 13 109 507 2120 10348 5911
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 63751 18138 1290 807 302 100 108 0
OW 52 226 187 311 261 99 55 0
VODI 0 100 120 289 357 202 105 0
ODI 0 21 61 238 339 370 184 0
CDI 0 6 20 133 451 886 515 0
VCDI 0 2 16 113 490 2146 10338 5911

Date: 2022-04-09:

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 62981 18522 1480 726 290 95 101 0
OW 53 304 179 323 243 124 74 0
VODI 0 126 176 324 330 256 115 0
ODI 0 28 78 202 349 426 170 0
CDI 0 5 18 168 547 693 525 0
VCDI 0 0 0 41 510 1914 9767 6837
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 62981 18580 1474 754 312 99 107 0
OW 53 245 196 285 239 113 60 0
VODI 0 128 156 323 305 252 113 0
ODI 0 30 76 195 342 440 164 0
CDI 0 2 28 168 540 726 527 0
VCDI 0 0 1 59 531 1878 9781 6837

Date: 2022-04-11:

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 60312 20694 2372 664 221 63 77 0
OW 52 303 229 482 217 62 29 0
VODI 0 165 202 384 393 141 57 0
ODI 0 44 86 244 490 400 94 0
CDI 0 2 17 168 625 992 534 0
VCDI 0 0 0 6 295 1790 9311 6883
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 60312 20597 2313 709 337 100 104 0
OW 52 339 215 301 201 90 61 0
VODI 0 184 204 336 293 199 121 0
ODI 0 72 116 282 276 411 163 0
CDI 0 16 53 218 579 528 506 0
VCDI 0 0 5 102 555 2120 9147 6883

Date: 2022-04-13:

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 64232 17929 1670 718 297 97 55 0
OW 61 246 208 325 207 99 29 0
VODI 0 126 127 352 399 178 39 0
ODI 0 35 54 219 444 375 129 0
CDI 0 12 13 143 546 967 816 0
VCDI 0 0 9 71 290 2332 9098 6153
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 64232 17566 1546 663 340 142 96 0
OW 61 361 172 283 216 108 46 0
VODI 0 214 192 285 315 260 123 0
ODI 0 133 107 219 332 363 178 0
CDI 0 47 32 232 484 584 592 0
VCDI 0 27 32 146 496 2591 9131 6153

Date: 2022-04-15:

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 61028 20519 2099 716 265 130 43 0
OW 61 245 210 418 245 78 28 0
VODI 0 85 118 359 474 192 47 0
ODI 0 17 38 179 489 393 128 0
CDI 0 2 6 132 612 911 628 0
VCDI 0 1 5 37 220 1948 9185 6809
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 61027 20107 2002 679 283 144 83 0
OW 62 325 190 326 264 95 44 0
VODI 0 227 145 305 434 247 122 0
ODI 0 178 84 218 309 336 224 0
CDI 0 30 49 188 502 575 485 0
VCDI 0 2 6 125 513 2255 9101 6809


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