Validation of sea ice concentration

Bulletin date: 2013-09-05

Model vs. observations, sea ice class contingency tables

Date: 2013-08-30:

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 26553 4920 265 129 30 3 0 0
OW 0 185 91 76 46 12 1 0
VODI 0 26 98 226 198 72 73 0
ODI 0 0 3 55 233 208 184 0
CDI 0 0 0 9 60 303 471 0
VCDI 0 0 0 0 8 61 1874 946
...date precedes bulletin

Date: 2013-09-03:

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 26145 5405 267 150 50 7 1 0
OW 0 36 79 68 76 23 11 0
VODI 0 8 45 153 280 107 78 0
ODI 0 0 6 99 174 244 212 0
CDI 0 0 0 4 69 207 636 21
VCDI 0 0 0 0 14 52 1804 888
...date precedes bulletin

Date: 2013-09-05:

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 26397 4981 522 114 17 9 2 0
OW 0 82 63 98 42 22 24 0
VODI 0 3 29 186 258 114 78 0
ODI 0 0 0 40 251 184 214 0
CDI 0 0 0 3 53 252 653 0
VCDI 0 0 0 0 11 52 1783 882
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 26397 5046 590 266 131 41 34 0
OW 0 16 15 38 58 33 27 0
VODI 0 4 9 72 175 84 62 0
ODI 0 0 0 40 175 194 134 0
CDI 0 0 0 25 84 237 794 20
VCDI 0 0 0 0 9 44 1703 862

Date: 2013-09-09:

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 26044 5388 324 115 53 8 0 0
OW 0 51 88 76 50 14 3 0
VODI 0 6 68 147 330 71 25 0
ODI 0 0 10 46 254 336 90 0
CDI 0 0 0 10 47 346 616 21
VCDI 0 0 0 0 10 42 1542 1188
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 26044 5410 421 245 202 52 26 0
OW 0 22 13 27 64 26 10 0
VODI 0 13 38 50 178 69 44 0
ODI 0 0 18 34 194 264 68 0
CDI 0 0 0 29 78 335 603 1
VCDI 0 0 0 9 28 71 1525 1208

Date: 2013-09-11:

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 26015 4758 809 148 41 3 2 0
OW 0 202 85 72 29 5 10 0
VODI 0 19 62 234 220 39 36 0
ODI 0 0 2 77 305 212 110 0
CDI 0 0 0 10 38 296 579 0
VCDI 0 0 0 5 13 65 1661 1257
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 26015 4900 902 318 144 25 43 0
OW 0 23 19 26 66 24 12 0
VODI 0 54 23 75 144 49 26 0
ODI 0 2 8 71 182 183 99 0
CDI 0 0 6 31 81 244 617 0
VCDI 0 0 0 25 29 95 1601 1257

Date: 2013-09-13:

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 26709 4443 396 113 37 7 6 0
OW 64 289 61 66 22 11 18 0
VODI 0 51 101 167 163 55 35 0
ODI 0 0 2 125 290 200 115 0
CDI 0 0 0 16 65 210 468 0
VCDI 0 8 3 11 29 54 2061 948
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 26773 4725 459 255 165 53 42 0
OW 0 30 24 29 41 20 14 0
VODI 0 28 52 59 119 65 47 0
ODI 0 0 21 77 146 140 93 0
CDI 0 0 4 49 118 229 551 0
VCDI 0 8 3 29 17 30 1956 948


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