Validation of sea ice concentration

Bulletin date: 2012-10-04

Model vs. observations, sea ice class contingency tables

Date: 2012-09-28:

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 24383 5705 375 242 248 18 0 0
OW 0 9 37 83 148 48 0 0
VODI 0 5 23 56 110 200 0 0
ODI 0 0 0 46 117 241 3 0
CDI 0 0 0 9 98 350 113 0
VCDI 0 0 0 6 84 516 2359 1787
...date precedes bulletin

Date: 2012-10-02:

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 24186 5287 548 321 140 4 0 0
OW 0 131 63 73 131 20 0 0
VODI 0 5 43 125 233 130 3 0
ODI 0 0 1 27 199 199 26 0
CDI 0 0 0 9 58 368 44 0
VCDI 0 0 0 13 133 655 2537 1707
...date precedes bulletin

Date: 2012-10-04:

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 24662 4855 395 205 190 44 0 0
OW 0 206 76 55 101 102 0 0
VODI 0 46 51 92 109 146 0 0
ODI 0 0 1 27 149 218 6 0
CDI 0 0 0 6 75 356 41 0
VCDI 0 0 0 2 43 702 2657 1801
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24662 5093 461 271 351 251 0 0
OW 0 7 27 24 27 46 0 0
VODI 0 7 24 42 48 60 0 0
ODI 0 0 10 33 76 76 0 0
CDI 0 0 1 15 99 262 23 0
VCDI 0 0 0 2 66 873 2681 1801

Date: 2012-10-08:

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 24256 5174 470 204 25 8 0 0
OW 0 19 83 120 53 8 0 0
VODI 0 5 33 127 116 36 2 0
ODI 0 0 19 54 160 138 22 0
CDI 0 0 4 33 154 289 56 0
VCDI 0 0 0 1 71 727 3029 1923
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24256 5162 483 357 247 111 6 0
OW 0 14 25 22 30 40 4 0
VODI 0 11 35 38 47 47 5 0
ODI 0 5 25 50 47 44 8 0
CDI 0 6 29 36 93 145 44 0
VCDI 0 0 12 36 115 819 3042 1923

Date: 2012-10-10:

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 24693 4806 361 182 43 7 0 0
OW 0 45 81 101 87 11 0 0
VODI 0 4 43 80 141 59 4 0
ODI 0 0 10 23 111 168 13 0
CDI 0 0 0 29 152 236 39 0
VCDI 0 0 0 8 84 675 3198 1925
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24693 4831 409 289 288 119 15 0
OW 0 14 26 29 45 27 5 0
VODI 0 6 22 43 70 43 11 0
ODI 0 3 19 23 71 49 5 0
CDI 0 1 17 21 65 172 43 0
VCDI 0 0 2 18 79 746 3175 1925

Date: 2012-10-12:

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 24517 4673 294 164 54 18 0 0
OW 1 234 44 39 96 26 0 0
VODI 0 49 62 54 145 99 1 0
ODI 0 0 13 32 50 225 9 0
CDI 0 0 0 11 62 313 23 0
VCDI 0 0 0 18 71 607 3447 1968
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 24518 4948 388 255 291 275 20 0
OW 0 5 8 10 26 59 4 0
VODI 0 2 11 11 30 71 11 0
ODI 0 1 2 22 40 91 13 0
CDI 0 0 4 11 50 159 62 0
VCDI 0 0 0 9 41 633 3370 1968


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