Validation of sea ice concentration

Bulletin date: 2017-06-08

Model vs. observations, sea ice class contingency tables

Date: 2017-06-02:

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 14496 6661 757 523 195 58 23 0
OW 0 79 115 194 145 72 45 0
VODI 0 14 81 271 204 133 215 0
ODI 0 0 30 240 275 244 399 6
CDI 0 0 42 212 331 446 1789 53
VCDI 0 0 10 38 198 381 5439 3745
...date precedes bulletin

Date: 2017-06-06:

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 14721 6605 1400 608 257 56 32 0
OW 0 1 236 263 142 39 71 0
VODI 0 0 118 274 283 162 148 0
ODI 0 0 68 124 237 208 385 0
CDI 0 0 36 139 346 460 2610 0
VCDI 0 0 0 19 47 74 4579 3411
...date precedes bulletin

Date: 2017-06-08:

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 15409 6446 1128 638 217 71 39 0
OW 0 31 159 282 160 61 82 4
VODI 0 0 140 273 197 177 186 0
ODI 0 0 50 134 156 162 478 0
CDI 0 0 46 156 227 524 2451 10
VCDI 0 0 0 8 20 115 4115 3807
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 15409 6452 1104 671 247 80 45 0
OW 0 24 174 259 116 45 45 0
VODI 0 1 136 263 196 145 212 4
ODI 0 0 61 141 160 195 483 0
CDI 0 0 48 145 233 521 2563 10
VCDI 0 0 0 12 25 124 4003 3807

Date: 2017-06-12:

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 15372 6331 1333 887 235 75 53 2
OW 0 19 236 296 185 62 56 8
VODI 0 10 71 240 243 178 129 0
ODI 0 0 22 173 343 391 623 0
CDI 0 0 4 68 111 370 2630 2
VCDI 0 0 0 12 18 55 3958 3358
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 15372 6323 1237 896 312 118 63 1
OW 0 27 178 208 168 69 83 8
VODI 0 10 159 198 157 203 301 1
ODI 0 0 60 169 125 151 592 0
CDI 0 0 32 180 334 465 3084 2
VCDI 0 0 0 25 39 125 3326 3358

Date: 2017-06-14:

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 15495 6165 1496 1015 332 113 66 0
OW 0 19 147 226 201 109 60 0
VODI 0 1 63 184 242 236 183 0
ODI 0 0 21 151 217 405 737 0
CDI 0 0 5 92 139 352 2661 0
VCDI 0 0 0 15 23 79 3581 3328
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 15495 6145 1250 956 430 184 88 0
OW 0 28 188 143 122 148 93 0
VODI 0 9 161 196 153 189 324 0
ODI 0 2 84 153 135 145 698 0
CDI 0 1 45 202 270 508 3465 42
VCDI 0 0 4 33 44 120 2620 3286

Date: 2017-06-16:

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 15513 6164 1598 1144 240 73 83 0
OW 0 6 110 266 225 71 63 0
VODI 0 1 62 220 302 220 236 0
ODI 0 0 23 153 236 389 819 0
CDI 0 0 13 142 161 437 2488 0
VCDI 0 0 1 12 28 92 3272 3296
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 15513 6142 1363 1053 378 116 102 0
OW 0 20 155 194 132 102 90 0
VODI 0 9 148 210 139 166 415 0
ODI 0 0 83 209 176 191 785 0
CDI 0 0 56 255 329 591 3223 85
VCDI 0 0 2 16 38 116 2346 3211


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