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

Validation of sea ice concentration - American 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 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 0 0
ODI 0 0 0 0 3 9 3 0
CDI 0 0 0 0 27 61 67 4
VCDI 0 0 1 44 220 1647 15955 27825
...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 0 0 0 0 0 0 0
VODI 0 0 1 0 0 2 0 0
ODI 0 2 1 2 7 8 1 0
CDI 0 0 3 6 50 52 25 0
VCDI 0 0 4 52 425 1694 15724 27807
...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 0 0 0 0 0 0 0
VODI 0 1 0 3 4 0 0 0
ODI 0 2 0 2 6 0 0 0
CDI 0 1 1 4 33 80 68 17
VCDI 0 1 3 17 314 1415 11785 32109
...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 0 0 0 0 0 0 0
VODI 0 0 0 0 0 0 1 0
ODI 0 0 0 0 0 4 20 2
CDI 0 0 0 0 27 72 156 19
VCDI 0 0 0 14 207 1175 13582 30587
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 2 0
ODI 0 0 0 0 1 4 21 2
CDI 0 0 0 2 43 73 179 22
VCDI 0 0 0 12 190 1174 13557 30584

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 0 0 0 0 1 0 0
ODI 0 0 0 0 0 2 13 1
CDI 0 0 0 0 18 105 207 16
VCDI 0 0 0 17 191 1344 14036 29915
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 1 3 0
ODI 0 0 0 0 0 3 11 1
CDI 0 0 0 0 20 114 284 17
VCDI 0 0 0 17 189 1334 13958 29914

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 0 0 0 0 2 1 0
ODI 0 0 0 0 8 6 4 2
CDI 0 0 0 2 35 114 105 21
VCDI 0 0 0 30 191 1331 13469 30545
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 2 1 0
ODI 0 0 0 0 2 6 8 2
CDI 0 0 0 1 40 112 309 22
VCDI 0 0 0 31 192 1333 13261 30544

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 0 0 1 2 5 2 0
ODI 0 0 0 9 6 17 17 0
CDI 0 0 0 12 36 99 234 0
VCDI 0 4 3 61 248 1391 12098 31621
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 2 1 0
VODI 0 0 0 1 3 8 5 0
ODI 0 0 0 3 5 10 35 0
CDI 0 0 0 18 35 99 273 2
VCDI 0 4 3 61 249 1393 12037 31619

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 6 5 0 0 0
ODI 0 0 0 3 17 23 28 0
CDI 0 1 0 12 51 175 215 0
VCDI 0 3 12 42 389 1944 14258 28682
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 1 2 0
ODI 0 0 0 5 3 7 38 0
CDI 0 0 0 13 43 146 365 1
VCDI 0 4 12 45 416 1988 14096 28681


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