Validation of sea ice concentration

Bulletin date: 2016-04-14

Model vs. observations, sea ice class contingency tables

Date: 2016-04-08:

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 14250 6554 795 369 164 63 14 0
OW 0 121 165 244 172 87 24 0
VODI 0 117 148 168 161 153 47 0
ODI 0 98 64 80 166 198 164 5
CDI 0 34 96 73 150 334 718 25
VCDI 0 0 46 67 95 412 7221 4297
...date precedes bulletin

Date: 2016-04-12:

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 13954 6592 983 430 150 20 10 0
OW 0 45 193 206 112 47 7 0
VODI 0 47 142 162 180 103 37 0
ODI 0 0 59 112 247 224 195 4
CDI 0 0 35 94 196 385 639 12
VCDI 0 0 49 75 104 355 6398 5556
...date precedes bulletin

Date: 2016-04-14:

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 13886 6536 964 475 117 17 7 0
OW 0 48 217 219 104 36 7 0
VODI 0 33 110 194 157 97 32 0
ODI 0 17 61 115 149 231 205 0
CDI 0 0 16 138 137 366 546 12
VCDI 0 0 24 149 179 663 7295 4600
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 13886 6549 1039 508 137 28 7 0
OW 0 44 155 187 86 24 6 0
VODI 0 26 103 180 132 91 28 0
ODI 0 15 56 131 167 239 187 0
CDI 0 0 16 135 136 366 545 16
VCDI 0 0 23 149 185 662 7319 4596

Date: 2016-04-18:

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 14237 6769 1079 476 111 11 2 0
OW 0 76 78 208 106 38 11 0
VODI 0 116 44 130 131 76 36 0
ODI 0 100 7 83 122 160 130 0
CDI 0 14 3 45 144 356 496 6
VCDI 0 8 5 26 146 1278 7034 4261
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14237 6510 852 367 109 17 0 0
OW 0 188 124 132 52 26 11 0
VODI 0 144 113 126 92 63 46 0
ODI 0 137 55 119 91 121 115 1
CDI 0 96 54 115 142 272 506 6
VCDI 0 8 18 109 274 1420 7031 4260

Date: 2016-04-20:

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 14081 6816 1126 512 107 13 3 0
OW 0 64 141 240 95 38 3 0
VODI 0 4 37 158 187 120 29 0
ODI 0 2 20 118 167 209 152 1
CDI 0 2 8 117 196 280 463 4
VCDI 0 129 16 107 246 932 8934 2282
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14081 6592 902 443 115 14 2 0
OW 0 174 127 154 54 46 9 0
VODI 0 94 97 147 124 142 32 0
ODI 0 26 63 124 149 146 180 2
CDI 0 2 76 115 170 253 465 4
VCDI 0 129 83 269 386 991 8896 2281

Date: 2016-04-22:

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 14181 6937 955 361 148 24 2 0
OW 0 123 113 141 130 75 0 0
VODI 0 15 58 127 203 119 36 0
ODI 0 4 39 74 150 128 210 0
CDI 0 3 44 79 196 240 682 3
VCDI 0 5 29 152 224 705 7542 3902
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 14181 6770 836 303 135 35 2 0
OW 0 143 117 129 96 71 4 0
VODI 0 100 69 123 163 111 113 0
ODI 0 43 40 94 152 106 234 1
CDI 0 25 66 107 182 176 656 4
VCDI 0 6 110 178 323 792 7463 3900


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