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

Validation of sea ice concentration - European sector

Bulletin date: 2023-11-09

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

Model vs. observations, sea ice class contingency tables

Date: 2023-11-03:

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 78973 6027 130 131 29 26 2 0
OW 1164 339 131 184 114 62 2 0
VODI 3092 44 60 178 221 76 5 0
ODI 0 5 11 106 249 99 13 0
CDI 0 0 7 56 285 342 149 0
VCDI 0 0 0 1 51 662 6697 3139
...date precedes bulletin

Date: 2023-11-05:

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 78730 5936 149 113 22 3 0 0
OW 1103 453 105 168 106 40 12 0
VODI 3252 100 68 146 155 68 0 0
ODI 0 22 28 98 175 124 2 0
CDI 0 8 12 69 239 565 98 0
VCDI 0 0 3 11 53 1202 6719 2705
...date precedes bulletin

Date: 2023-11-07:

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 77937 6435 180 200 58 1 0 0
OW 1115 473 96 126 91 22 10 0
VODI 3281 69 65 190 171 57 1 0
ODI 0 6 29 71 193 152 13 0
CDI 0 0 2 71 153 646 265 0
VCDI 0 0 0 0 20 916 7234 2513
...date precedes bulletin

Date: 2023-11-09:

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 76912 6888 167 238 41 10 0 0
OW 1082 514 92 196 133 40 7 0
VODI 3295 111 71 174 156 113 10 0
ODI 0 13 24 94 163 197 0 0
CDI 0 5 10 60 124 712 390 0
VCDI 0 0 0 0 32 784 7143 2861
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 76897 6921 176 240 49 13 0 0
OW 1098 468 82 209 133 33 4 0
VODI 3294 119 67 163 168 124 13 0
ODI 0 17 25 88 150 216 1 0
CDI 0 6 14 62 113 657 299 0
VCDI 0 0 0 0 36 813 7233 2861

Date: 2023-11-11:

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 75356 7938 123 135 86 3 0 0
OW 1035 676 140 240 130 64 11 0
VODI 3314 136 113 221 142 143 16 0
ODI 0 19 24 89 150 186 13 0
CDI 0 3 11 73 144 693 326 0
VCDI 0 0 0 4 26 910 7808 2361
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75357 7977 147 188 99 8 0 0
OW 1036 610 105 182 129 64 12 0
VODI 3312 164 119 219 155 133 14 0
ODI 0 17 29 88 126 220 13 0
CDI 0 4 11 81 143 666 302 0
VCDI 0 0 0 4 26 908 7833 2361

Date: 2023-11-13:

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 75884 6927 138 179 37 0 0 0
OW 1041 699 150 187 87 39 1 0
VODI 3325 132 133 461 186 67 2 0
ODI 0 7 17 137 326 193 2 0
CDI 0 0 0 24 181 922 202 0
VCDI 0 0 0 0 8 563 7642 2963
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 75836 6833 168 211 48 1 0 0
OW 1082 638 122 301 116 70 3 0
VODI 3332 254 113 267 209 112 1 0
ODI 0 38 27 117 203 175 4 0
CDI 0 2 8 90 208 746 169 0
VCDI 0 0 0 2 41 680 7672 2963

Date: 2023-11-15:

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 73595 8375 195 311 166 2 0 0
OW 1016 549 114 217 291 28 0 0
VODI 3339 137 84 241 462 47 2 0
ODI 0 15 23 100 386 174 6 0
CDI 0 2 7 58 250 792 187 0
VCDI 0 0 0 0 9 943 7727 3012
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73594 8140 177 257 186 0 0 0
OW 1017 627 115 241 318 55 1 0
VODI 3339 253 64 225 447 104 5 0
ODI 0 45 50 109 328 182 14 0
CDI 0 13 17 87 258 659 173 0
VCDI 0 0 0 8 27 986 7729 3012

Date: 2023-11-17:

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 73143 8267 178 344 103 7 0 0
OW 1012 557 142 315 242 52 1 0
VODI 3357 86 88 305 417 47 7 0
ODI 0 18 9 113 461 168 8 0
CDI 0 7 12 47 363 832 239 0
VCDI 0 0 0 6 45 754 7837 3273
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 73135 8075 177 352 161 3 0 0
OW 1021 585 100 196 297 95 9 0
VODI 3356 225 114 328 367 102 7 0
ODI 0 35 24 194 401 198 9 0
CDI 0 15 13 50 336 670 237 0
VCDI 0 0 1 10 69 792 7830 3273


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