Validation of sea ice concentration

Bulletin date: 2019-06-27

Model vs. observations, sea ice class contingency tables

Date: 2019-06-21:

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 15507 5927 1609 1254 670 287 233 0
OW 0 1 76 288 310 239 200 0
VODI 0 0 17 142 228 768 850 0
ODI 0 0 9 29 65 252 1304 0
CDI 0 0 13 62 68 94 1337 1
VCDI 0 0 0 3 10 24 2561 3721
...date precedes bulletin

Date: 2019-06-25:

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 15368 6387 1198 2153 556 190 173 0
OW 0 27 67 400 327 246 134 0
VODI 0 1 78 192 415 666 363 0
ODI 0 0 17 65 139 612 931 0
CDI 0 0 11 49 55 115 1461 73
VCDI 0 0 0 4 8 30 1974 3674
...date precedes bulletin

Date: 2019-06-27:

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 14790 6442 1752 2087 758 347 207 0
OW 0 1 133 252 391 435 214 0
VODI 0 0 49 88 234 694 616 0
ODI 0 0 22 55 84 227 1073 0
CDI 0 0 26 19 13 77 1134 29
VCDI 0 0 0 4 6 36 1925 3939
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14790 6443 1781 2119 774 390 224 0
OW 0 0 106 212 322 328 199 0
VODI 0 0 44 91 289 747 591 0
ODI 0 0 17 53 75 230 1077 0
CDI 0 0 34 27 19 82 1123 29
VCDI 0 0 0 3 7 39 1955 3939

Date: 2019-07-01:

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 17030 7668 304 1452 437 280 184 6
OW 0 105 40 227 215 257 180 4
VODI 0 13 15 157 221 317 342 2
ODI 0 0 0 82 104 216 1144 0
CDI 0 0 1 7 7 22 1240 4
VCDI 0 0 3 3 5 6 1713 4146
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 17030 7639 291 1434 506 435 312 10
OW 0 114 49 219 198 285 331 1
VODI 0 33 17 152 210 251 702 1
ODI 0 0 3 91 57 85 747 1
CDI 0 0 0 29 13 36 1142 4
VCDI 0 0 3 3 5 6 1569 4145

Date: 2019-07-03:

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 16318 7281 1974 1316 569 348 152 0
OW 0 11 191 185 173 210 127 0
VODI 0 0 65 213 208 277 316 0
ODI 0 0 3 53 117 327 863 1
CDI 0 0 0 7 18 34 1085 26
VCDI 0 0 0 4 5 15 1639 4028
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16318 7267 1915 1313 642 485 243 0
OW 0 23 184 214 168 217 294 0
VODI 0 2 99 155 178 246 519 0
ODI 0 0 19 68 76 202 507 0
CDI 0 0 16 26 21 48 1257 4
VCDI 0 0 0 2 5 13 1362 4051

Date: 2019-07-05:

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 16964 7195 1939 1017 566 360 168 0
OW 0 14 228 188 157 144 144 0
VODI 0 0 98 162 215 230 497 0
ODI 0 0 11 28 101 205 824 7
CDI 0 0 0 9 18 31 1198 101
VCDI 0 0 0 2 1 8 1302 4027
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 16964 7184 1860 1052 632 487 337 0
OW 0 24 248 176 169 130 335 0
VODI 0 1 118 99 158 168 542 0
ODI 0 0 21 59 74 134 463 0
CDI 0 0 29 18 24 52 1351 56
VCDI 0 0 0 2 1 7 1105 4079


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