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

Validation of sea ice concentration - Full domain

Bulletin date: 2019-05-23

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

Model vs. observations, sea ice class contingency tables

Date: 2019-05-17:

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 73902 16007 226 1375 736 103 0 0
OW 61 413 78 674 657 171 19 0
VODI 0 161 32 543 1473 748 62 0
ODI 0 105 18 262 1527 1366 144 0
CDI 0 25 8 249 2121 4282 942 155
VCDI 0 13 5 109 1258 8628 33093 35297
...date precedes bulletin

Date: 2019-05-19:

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 74068 16262 238 1394 779 153 4 0
OW 60 532 73 706 732 264 60 0
VODI 0 271 33 689 1425 907 143 0
ODI 0 126 24 293 1461 1308 238 0
CDI 0 59 24 411 2203 3846 1590 1
VCDI 0 7 4 175 1209 6770 34645 33861
...date precedes bulletin

Date: 2019-05-21:

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 75003 16124 234 1393 527 124 4 0
OW 58 577 118 1023 551 98 18 0
VODI 0 167 38 934 1839 296 19 0
ODI 0 58 13 217 2470 1184 214 0
CDI 0 24 19 240 2054 5002 1526 1
VCDI 0 11 4 58 929 5438 34703 33738
...date precedes bulletin

Date: 2019-05-23:

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 74606 16953 261 1445 579 121 0 0
OW 57 549 105 1167 947 128 1 0
VODI 0 150 27 824 2234 473 34 0
ODI 0 56 17 230 2126 1187 374 0
CDI 0 31 19 324 2080 4393 1801 36
VCDI 0 7 1 206 989 5992 35022 31496
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 74606 16963 290 1664 793 146 0 0
OW 57 500 73 1061 990 102 0 0
VODI 0 186 30 696 2068 473 53 0
ODI 0 59 12 255 2088 1232 426 0
CDI 0 38 24 318 2023 4359 1724 38
VCDI 0 0 1 202 993 5982 35029 31494

Date: 2019-05-25:

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 73819 17927 302 1704 747 148 0 0
OW 58 488 76 1293 1229 204 2 0
VODI 0 188 26 714 2292 619 119 0
ODI 0 124 24 231 1611 1183 500 0
CDI 0 81 29 359 2093 4012 2455 17
VCDI 0 171 31 235 1377 8338 29643 32579
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73819 17929 316 1974 1088 177 0 0
OW 58 471 62 1062 1222 197 4 0
VODI 0 200 26 681 2080 626 167 0
ODI 0 118 21 229 1536 1208 444 0
CDI 0 89 31 348 2020 4072 2446 18
VCDI 0 172 32 242 1403 8224 29658 32578

Date: 2019-05-27:

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 74732 17609 289 1625 568 120 1 0
OW 60 471 107 1327 750 90 2 0
VODI 0 177 48 1245 2082 165 12 0
ODI 0 62 20 310 3109 845 106 0
CDI 0 70 17 320 2178 5874 1535 27
VCDI 0 139 23 104 674 5786 29216 35153
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 74735 17409 313 2332 1576 226 1 0
OW 57 410 62 889 1242 259 11 0
VODI 0 222 29 670 1844 602 303 0
ODI 0 147 25 300 1309 1345 384 0
CDI 0 130 43 458 2100 4139 3997 55
VCDI 0 210 32 282 1290 6309 26176 35125

Date: 2019-05-29:

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 75358 18099 324 1933 657 84 2 0
OW 53 519 110 1713 784 81 9 0
VODI 0 154 44 1191 2109 265 34 0
ODI 0 100 29 302 2295 900 268 0
CDI 0 125 26 444 2297 5811 2189 7
VCDI 0 129 19 144 762 4975 28600 34103
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75361 17585 329 2777 1620 244 26 0
OW 50 533 63 978 936 174 64 0
VODI 0 323 44 733 1590 588 334 0
ODI 0 208 28 383 1365 1375 417 2
CDI 0 273 53 585 2279 4806 3887 86
VCDI 0 204 35 271 1114 4929 26374 34022

Date: 2019-05-31:

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 76007 18397 354 2063 633 116 7 0
OW 49 656 129 1708 879 166 7 0
VODI 0 225 44 937 2373 428 81 0
ODI 0 136 33 341 1867 1098 485 0
CDI 0 145 33 416 2205 5452 2904 1
VCDI 0 125 19 177 761 4375 26882 34334
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 76010 17970 375 2960 1723 426 84 0
OW 46 522 65 784 878 317 137 0
VODI 0 422 40 608 1557 586 459 0
ODI 0 238 34 435 1233 1534 577 0
CDI 0 367 60 557 2356 4822 4083 1
VCDI 0 165 38 298 971 3950 25026 34334


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