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

Validation of sea ice concentration - Full domain

Bulletin date: 2022-05-12

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

Model vs. observations, sea ice class contingency tables

Date: 2022-05-06:

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 61662 20724 1352 958 379 146 6 0
OW 62 143 195 485 343 143 28 0
VODI 1 43 89 352 614 332 97 0
ODI 0 18 39 221 536 557 224 0
CDI 0 33 45 272 899 2250 1301 40
VCDI 0 32 65 436 1616 8063 42438 39809
...date precedes bulletin

Date: 2022-05-08:

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 62209 17883 3980 922 329 53 9 0
OW 67 183 158 494 348 102 37 0
VODI 0 37 80 354 583 270 167 0
ODI 0 12 29 218 645 654 299 0
CDI 0 28 45 286 1208 2268 1531 51
VCDI 0 46 158 591 1838 9732 40340 38804
...date precedes bulletin

Date: 2022-05-10:

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 62990 19277 1980 1124 317 68 14 0
OW 56 151 186 463 315 71 8 0
VODI 0 37 92 451 824 401 52 0
ODI 0 22 43 285 978 727 174 0
CDI 0 39 69 409 1498 2578 1229 33
VCDI 0 87 113 607 3761 11671 39720 34128
...date precedes bulletin

Date: 2022-05-12:

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 60006 22242 2105 1140 432 79 21 0
OW 69 182 179 455 576 152 30 0
VODI 0 84 175 429 731 319 127 0
ODI 0 41 80 364 671 577 244 0
CDI 0 48 74 494 1417 2552 1079 35
VCDI 0 125 122 719 2523 13489 36012 36849
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 60006 22289 2124 1188 507 82 22 0
OW 69 156 182 393 474 137 25 0
VODI 0 61 164 475 779 337 114 0
ODI 0 37 61 344 631 587 214 0
CDI 0 52 77 481 1488 2653 1030 44
VCDI 0 127 127 720 2471 13372 36108 36840

Date: 2022-05-14:

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 63800 19413 1380 1160 579 181 38 0
OW 63 215 166 324 566 204 69 0
VODI 0 93 180 372 491 310 143 0
ODI 0 64 93 330 551 511 298 0
CDI 0 57 75 555 1537 1983 1647 22
VCDI 0 172 167 703 2846 11854 37036 36800
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 63800 19459 1415 1191 649 172 22 0
OW 63 183 148 343 484 199 68 0
VODI 0 87 186 349 514 330 143 0
ODI 0 49 69 323 539 514 277 0
CDI 0 59 63 529 1528 2118 1609 33
VCDI 0 177 180 709 2856 11710 37112 36789

Date: 2022-05-16:

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 65844 17101 2045 969 296 128 55 0
OW 66 138 252 485 372 105 47 0
VODI 0 69 168 744 695 180 57 0
ODI 0 31 69 605 1338 695 122 0
CDI 0 78 76 758 2618 4082 1156 22
VCDI 0 132 196 578 2038 9188 35252 38198
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 65844 17038 2077 1154 579 201 68 0
OW 66 130 160 364 425 146 91 0
VODI 0 99 142 416 584 317 110 0
ODI 0 44 102 420 605 504 240 0
CDI 0 51 89 821 2141 3116 1171 11
VCDI 0 187 236 964 3023 10094 35009 38209

Date: 2022-05-18:

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 63776 18030 3098 1306 502 185 62 0
OW 56 115 210 626 409 131 32 0
VODI 0 71 153 628 850 313 72 0
ODI 0 52 130 600 967 689 237 0
CDI 0 100 146 984 2266 2985 1817 45
VCDI 0 191 254 907 2704 9435 31601 40313
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 63776 17920 3011 1429 807 293 84 0
OW 56 136 180 395 322 154 52 0
VODI 0 112 172 493 582 286 109 0
ODI 0 59 142 436 609 493 338 0
CDI 0 75 166 1078 1998 2776 1960 37
VCDI 0 257 320 1220 3380 9736 31278 40321

Date: 2022-05-20:

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 63509 20137 1777 1276 549 207 70 0
OW 54 164 262 595 460 148 28 0
VODI 0 135 143 647 737 373 188 0
ODI 0 117 168 532 926 579 395 0
CDI 0 129 326 837 2022 2710 2158 88
VCDI 0 281 348 1134 2501 9753 33243 37342
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 63508 19994 1687 1373 766 307 104 0
OW 55 190 202 351 296 152 55 0
VODI 0 167 204 502 542 221 173 0
ODI 0 114 148 497 652 505 375 0
CDI 0 183 329 977 2046 2586 2323 96
VCDI 0 315 454 1321 2893 9999 33052 37334


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