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

Validation of sea ice concentration - Asian sector

Bulletin date: 2024-04-04

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

Model vs. observations, sea ice class contingency tables

Date: 2024-03-29:

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 5 2 1 0 0 0 0
VODI 0 6 6 11 0 0 0 0
ODI 0 5 3 14 12 0 0 0
CDI 0 2 5 32 76 34 18 1
VCDI 0 6 14 36 30 208 5663 25892
...date precedes bulletin

Date: 2024-03-31:

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 11 4 0 0 0 0 0
VODI 0 17 7 13 4 0 0 0
ODI 0 12 0 7 14 0 0 0
CDI 0 36 6 11 26 38 23 0
VCDI 0 48 33 56 40 273 10778 20625
...date precedes bulletin

Date: 2024-04-02:

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 15 0 0 0 0 0 0
VODI 0 25 5 5 0 0 0 0
ODI 0 7 11 14 6 0 0 0
CDI 0 8 20 56 66 68 6 7
VCDI 0 0 1 5 29 209 4382 27137
...date precedes bulletin

Date: 2024-04-04:

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 1 0 0 0 0 0 0
VODI 0 9 9 2 0 0 0 0
ODI 0 2 5 19 5 5 2 0
CDI 0 1 3 47 116 105 24 17
VCDI 0 0 0 0 8 116 4349 27237
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 1 0 0 0 0 0 0
VODI 0 9 9 3 0 0 0 0
ODI 0 2 5 18 3 4 1 0
CDI 0 1 3 47 118 105 31 25
VCDI 0 0 0 0 8 117 4343 27229

Date: 2024-04-06:

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 7 4 2 0 0 0 0
ODI 0 5 7 5 4 1 0 0
CDI 0 1 11 44 120 102 21 0
VCDI 0 0 0 4 27 295 7142 24280
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 7 7 2 0 0 0 0
ODI 0 6 4 8 3 1 0 0
CDI 0 0 11 41 121 97 20 0
VCDI 0 0 0 4 27 300 7143 24280

Date: 2024-04-08:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 6 3 7 0 0 0 0
ODI 0 0 6 15 7 0 0 0
CDI 0 0 2 17 59 195 72 0
VCDI 0 0 0 1 42 440 14314 16896
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 2 0 0 0 0 0 0
ODI 0 4 5 7 0 0 0 0
CDI 0 0 6 32 73 167 62 0
VCDI 0 0 0 1 35 468 14324 16896

Date: 2024-04-10:

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 1 2 4 2 0 0 0
ODI 0 1 1 4 9 1 0 0
CDI 0 0 1 6 29 115 46 10
VCDI 0 0 0 0 8 259 11594 19989
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 0 0 0 0
ODI 0 2 2 4 3 1 23 1
CDI 0 0 2 9 26 81 32 17
VCDI 0 0 0 1 19 293 11585 19981

Date: 2024-04-12:

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 0 0 0 0 0 0 0 0
OW 0 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 4 5 4 0 0
CDI 0 0 0 1 35 146 44 0
VCDI 0 0 0 0 44 614 11989 19196
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 0 0 7 0
ODI 0 0 0 0 2 6 20 0
CDI 0 0 0 5 37 67 56 0
VCDI 0 0 0 0 45 691 11950 19196


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