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: 2024-01-18

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

Model vs. observations, sea ice class contingency tables

Date: 2024-01-12:

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 5 4 2 0 0 0 0
OW 0 46 16 31 0 0 0 0
VODI 0 38 26 41 2 0 0 0
ODI 0 1 5 35 41 7 0 0
CDI 0 0 0 11 59 117 86 3
VCDI 0 0 0 0 4 353 8543 22606
...date precedes bulletin

Date: 2024-01-14:

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 5 1 0 0 0
OW 0 2 4 20 40 0 0 0
VODI 0 35 34 42 18 0 0 0
ODI 0 2 4 22 40 5 0 0
CDI 0 0 0 9 48 111 55 0
VCDI 0 0 0 0 1 232 6366 24986
...date precedes bulletin

Date: 2024-01-16:

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 3 0 0 0 0
OW 0 0 0 4 20 1 0 0
VODI 0 62 34 50 38 5 0 0
ODI 0 12 4 14 45 6 0 0
CDI 0 0 0 2 34 70 9 0
VCDI 0 0 0 0 17 397 8457 22798
...date precedes bulletin

Date: 2024-01-18:

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 12 0 2 9 5 0 0
VODI 0 56 28 33 40 19 0 0
ODI 0 29 7 24 27 4 1 0
CDI 0 8 9 17 31 29 29 0
VCDI 0 11 7 26 45 536 9788 21250
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 12 0 1 10 6 0 0
VODI 0 56 29 41 38 18 0 0
ODI 0 33 5 18 29 5 2 0
CDI 0 4 10 19 32 32 22 0
VCDI 0 11 7 23 43 532 9794 21250

Date: 2024-01-20:

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 16 2 0 5 4 0 0
VODI 0 59 14 23 35 27 0 0
ODI 0 58 20 22 1 5 0 0
CDI 0 55 5 12 7 26 13 0
VCDI 0 21 15 33 88 631 12040 18845
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 1 0 5 6 0 0
VODI 0 62 22 22 33 25 0 0
ODI 0 58 13 23 3 5 0 0
CDI 0 61 7 11 8 25 19 0
VCDI 0 13 13 34 87 632 12034 18845

Date: 2024-01-22:

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 0 0 0 0
OW 0 113 5 2 0 0 0 0
VODI 0 39 10 10 28 23 0 0
ODI 0 20 17 23 7 18 0 0
CDI 0 1 3 27 45 83 60 0
VCDI 0 0 0 3 44 469 11680 19352
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 19 5 5 12 21 0 0
VODI 0 44 2 6 16 20 0 0
ODI 0 76 9 6 4 0 0 0
CDI 0 34 19 40 39 69 64 3
VCDI 0 0 0 8 53 483 11676 19349

Date: 2024-01-24:

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 0 0 0 0
OW 0 71 5 8 0 0 0 0
VODI 0 55 9 13 36 10 0 0
ODI 0 26 15 22 6 19 4 0
CDI 0 2 9 30 48 81 30 1
VCDI 0 0 0 0 7 254 5529 25792
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 4 0 0 0 0 0 0
OW 0 16 5 13 27 9 1 0
VODI 0 26 4 12 12 13 0 0
ODI 0 32 7 9 2 5 0 0
CDI 0 64 19 24 24 51 16 1
VCDI 0 12 3 15 32 286 5546 25792

Date: 2024-01-26:

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 0 0 0 0 0
OW 0 28 11 7 0 0 0 0
VODI 0 65 16 44 27 4 1 0
ODI 0 43 14 15 15 9 1 0
CDI 0 56 7 14 18 36 8 0
VCDI 0 41 19 45 58 477 11640 19363
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 5 3 1 0 0 0 0
OW 0 7 4 24 25 1 0 0
VODI 0 19 12 21 9 10 1 0
ODI 0 40 5 3 11 9 2 0
CDI 0 88 15 24 12 17 33 0
VCDI 0 74 28 52 61 489 11614 19363


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