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

Validation of sea ice concentration - American sector

Bulletin date: 2017-04-20

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

Model vs. observations, sea ice class contingency tables

Date: 2017-04-14:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 31 11 15 0
ODI 0 0 0 3 44 60 13 0
CDI 0 0 0 9 129 265 48 16
VCDI 0 0 0 8 113 2696 16022 26383
...date precedes bulletin

Date: 2017-04-16:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 17 13 3 0
VODI 0 0 0 0 30 22 14 0
ODI 0 0 0 0 115 47 13 0
CDI 0 0 0 0 128 276 149 5
VCDI 0 0 0 0 115 2322 16210 26387
...date precedes bulletin

Date: 2017-04-18:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 14 23 0 0
VODI 0 0 0 0 44 50 0 0
ODI 0 0 0 0 113 92 3 0
CDI 0 0 0 0 187 417 173 3
VCDI 0 0 0 0 160 3104 17866 23617
...date precedes bulletin

Date: 2017-04-20:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 6 14 0 0
VODI 0 0 0 0 43 31 14 0
ODI 0 0 0 0 132 60 9 0
CDI 0 0 0 0 187 306 125 0
VCDI 0 0 0 0 149 1893 16271 26626
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 10 16 0 0
VODI 0 0 0 0 27 26 17 0
ODI 0 0 0 0 118 61 6 0
CDI 0 0 0 0 201 280 106 0
VCDI 0 0 0 0 161 1921 16290 26626

Date: 2017-04-22:

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 0 0 0 0 1 0 0 0
OW 0 0 0 0 25 16 0 0
VODI 0 0 0 0 18 38 2 0
ODI 0 0 0 0 94 65 1 0
CDI 0 0 0 0 200 256 96 0
VCDI 0 0 0 0 213 1665 13126 30050
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 6 0 0 0
OW 0 0 0 0 22 10 0 0
VODI 0 0 0 0 16 43 2 0
ODI 0 0 0 0 72 55 1 0
CDI 0 0 0 0 206 283 114 0
VCDI 0 0 0 0 229 1649 13108 30050

Date: 2017-04-24:

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 0 0 0 0 1 0 0 0
OW 0 0 0 0 9 0 0 0
VODI 0 0 0 0 20 2 0 0
ODI 0 0 0 0 227 49 0 0
CDI 0 0 0 0 236 244 31 0
VCDI 0 0 0 0 194 2303 11793 30757
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 0 19 0 0 0
VODI 0 0 0 0 31 4 0 0
ODI 0 0 0 0 32 41 2 0
CDI 0 0 0 0 174 200 63 0
VCDI 0 0 0 0 431 2353 11759 30757

Date: 2017-04-26:

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 0 0 0 2 0 0 0 0
OW 0 0 0 4 9 0 0 0
VODI 0 0 0 2 34 0 0 0
ODI 0 0 0 1 126 1 0 0
CDI 0 0 0 8 328 71 25 0
VCDI 0 0 0 4 845 2598 11283 30525
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 0 0 0 0
OW 0 0 0 1 2 0 0 0
VODI 0 0 0 7 31 0 0 0
ODI 0 0 0 0 69 3 0 0
CDI 0 0 0 6 213 90 54 0
VCDI 0 0 0 7 1027 2577 11254 30525

Date: 2017-04-28:

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 0 0 0 3 4 0 0 0
OW 0 0 0 5 9 0 0 0
VODI 0 0 0 1 30 3 0 0
ODI 0 0 0 0 107 20 0 0
CDI 0 0 0 0 307 238 104 0
VCDI 0 0 0 3 898 3069 12000 29065
observations
Ice free Ice free
near MIZ		 OW VODI ODI CDI VCDI
near MIZ		 VCDI
m
o
d
e
l		 Ice free 0 0 0 0 1 0 0 0
OW 0 0 0 4 3 0 0 0
VODI 0 0 0 5 26 3 0 0
ODI 0 0 0 0 83 4 7 0
CDI 0 0 0 1 216 155 109 62
VCDI 0 0 0 2 1026 3168 11988 29003


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