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

Validation of sea ice concentration - European sector

Bulletin date: 2023-10-26

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

Model vs. observations, sea ice class contingency tables

Date: 2023-10-20:

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 88990 7591 429 497 162 20 0 0
OW 0 57 64 149 71 50 0 0
VODI 0 24 24 191 172 54 0 0
ODI 0 4 10 130 126 65 0 0
CDI 0 0 1 87 201 108 4 0
VCDI 0 0 0 53 363 2877 4826 1700
...date precedes bulletin

Date: 2023-10-22:

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 91481 5466 152 188 88 78 0 0
OW 2 150 52 90 37 58 0 0
VODI 0 124 50 121 22 72 0 0
ODI 0 64 64 132 43 58 1 0
CDI 0 7 18 143 164 103 0 0
VCDI 0 0 0 67 483 1970 5843 1709
...date precedes bulletin

Date: 2023-10-24:

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 91742 5310 214 284 81 40 0 0
OW 2 68 68 184 45 27 0 0
VODI 0 17 40 206 65 49 0 0
ODI 0 2 2 115 94 69 0 0
CDI 0 0 0 93 330 390 0 0
VCDI 0 0 0 6 225 1912 5597 1823
...date precedes bulletin

Date: 2023-10-26:

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 91293 5434 263 372 115 78 8 0
OW 4 54 55 214 49 34 10 0
VODI 0 3 35 256 65 48 19 0
ODI 0 0 2 127 94 64 19 0
CDI 0 0 0 79 315 114 113 0
VCDI 0 0 0 10 288 1891 3902 3673
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 91283 5423 259 375 119 73 7 0
OW 14 60 60 212 41 30 10 0
VODI 0 8 33 257 68 60 21 0
ODI 0 0 3 120 103 65 18 0
CDI 0 0 0 87 329 120 108 0
VCDI 0 0 0 7 266 1881 3907 3673

Date: 2023-10-28:

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 91026 5478 267 407 128 57 20 0
OW 6 39 52 190 33 15 20 0
VODI 0 6 32 244 114 58 27 0
ODI 0 0 2 137 115 70 24 0
CDI 0 0 0 65 277 144 97 1
VCDI 0 0 0 9 197 1537 4141 4065
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 91015 5467 274 421 130 58 21 0
OW 17 48 45 188 39 11 19 0
VODI 0 8 31 229 110 68 29 0
ODI 0 0 3 136 126 71 22 0
CDI 0 0 0 68 265 162 87 0
VCDI 0 0 0 10 194 1511 4151 4066

Date: 2023-10-30:

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 89761 6497 283 473 175 54 4 0
OW 8 8 63 195 51 16 8 0
VODI 0 0 5 290 140 13 23 0
ODI 0 0 0 108 236 45 20 0
CDI 0 0 0 23 288 492 46 0
VCDI 0 0 0 8 121 795 5912 2939
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89763 6439 261 494 210 80 34 0
OW 6 66 53 141 65 9 21 0
VODI 0 0 36 203 116 59 55 0
ODI 0 0 1 172 134 65 45 0
CDI 0 0 0 56 262 214 112 0
VCDI 0 0 0 31 224 988 5746 2939

Date: 2023-11-01:

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 89634 6294 371 473 150 88 24 0
OW 9 29 43 207 68 19 9 0
VODI 0 5 14 242 151 19 19 0
ODI 0 0 2 152 170 40 29 0
CDI 0 0 0 52 202 287 59 1
VCDI 0 0 0 18 167 834 6206 3013
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89635 6147 307 445 181 116 56 0
OW 8 149 81 153 58 14 27 0
VODI 0 29 33 187 108 50 56 0
ODI 0 3 9 181 130 74 45 0
CDI 0 0 0 131 201 186 140 2
VCDI 0 0 0 47 230 847 6022 3012

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 89006 6470 367 580 231 127 20 0
OW 11 8 28 199 114 21 11 0
VODI 0 0 2 150 195 23 14 0
ODI 0 0 0 55 277 48 23 0
CDI 0 0 0 9 231 230 68 0
VCDI 0 0 0 0 135 770 5082 4595
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 89008 6328 301 519 253 165 48 0
OW 9 142 58 156 77 12 27 0
VODI 0 8 36 198 150 36 32 0
ODI 0 0 2 87 149 58 74 0
CDI 0 0 0 29 334 163 134 0
VCDI 0 0 0 4 220 785 4903 4595


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