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: 2024-03-14

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

Model vs. observations, sea ice class contingency tables

Date: 2024-03-08:

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 90 0 0 0 0 0 0
OW 0 120 8 2 0 0 0 0
VODI 0 73 9 11 6 0 0 0
ODI 0 46 11 15 12 0 0 0
CDI 0 51 15 36 54 35 10 1
VCDI 0 3 7 34 134 651 6100 24548
...date precedes bulletin

Date: 2024-03-10:

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 81 0 0 0 0 0 0
OW 0 117 4 0 0 0 0 0
VODI 0 81 11 11 5 0 0 0
ODI 0 57 9 5 6 4 0 0
CDI 0 43 14 37 9 21 1 0
VCDI 0 2 6 35 84 350 3643 27446
...date precedes bulletin

Date: 2024-03-12:

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 91 1 0 0 0 0 0
OW 0 160 9 7 0 0 0 0
VODI 0 55 16 8 6 0 0 0
ODI 0 22 3 19 11 3 0 0
CDI 0 8 11 46 38 40 7 26
VCDI 0 0 0 37 60 368 6134 24896
...date precedes bulletin

Date: 2024-03-14:

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 15 8 14 0 0 0 0
OW 0 107 12 22 3 0 0 0
VODI 0 54 15 10 4 0 0 0
ODI 0 11 12 33 12 0 0 0
CDI 0 0 0 13 77 56 20 0
VCDI 0 1 1 10 54 774 8807 21937
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 24 7 17 0 0 0 0
OW 0 101 12 19 2 0 0 0
VODI 0 50 16 14 4 0 0 0
ODI 0 12 12 28 17 0 0 0
CDI 0 0 0 14 74 60 25 4
VCDI 0 1 1 10 53 770 8802 21933

Date: 2024-03-16:

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 35 6 3 0 0 0 0
OW 0 89 10 16 10 0 0 0
VODI 0 74 8 8 17 1 0 0
ODI 0 38 5 3 4 1 5 0
CDI 0 52 19 17 1 4 42 0
VCDI 0 10 17 118 134 539 11330 19466
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 34 9 4 0 0 0 0
OW 0 98 5 15 10 0 0 0
VODI 0 74 7 7 15 0 0 0
ODI 0 35 9 4 5 2 5 0
CDI 0 45 17 22 3 4 46 4
VCDI 0 12 18 113 133 539 11326 19462

Date: 2024-03-18:

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 46 3 1 0 0 0 0
OW 0 131 23 15 3 0 0 0
VODI 0 38 13 18 16 1 0 0
ODI 0 20 8 21 17 6 0 0
CDI 0 16 19 34 14 43 28 0
VCDI 0 4 12 79 107 526 11325 19495
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 41 5 3 3 0 0 0
OW 0 60 10 14 9 3 0 0
VODI 0 60 15 9 17 6 0 0
ODI 0 47 8 17 8 6 0 0
CDI 0 35 17 25 5 29 29 0
VCDI 0 12 23 100 115 532 11324 19495

Date: 2024-03-20:

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 15 5 1 0 0 0 0
OW 0 82 20 28 2 0 0 0
VODI 0 22 11 38 13 1 0 0
ODI 0 11 12 29 25 10 0 0
CDI 0 0 0 22 87 57 77 7
VCDI 0 0 0 1 52 591 11612 19251
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 11 7 4 0 0 0 0
OW 0 33 9 10 2 0 0 0
VODI 0 50 13 39 12 10 0 0
ODI 0 31 11 27 20 12 2 0
CDI 0 5 8 36 46 28 44 1
VCDI 0 0 0 3 99 609 11643 19257

Date: 2024-03-22:

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 2 0 0 0 0 0
OW 0 34 10 20 8 0 0 0
VODI 0 22 14 19 32 2 0 0
ODI 0 6 10 21 63 6 0 0
CDI 0 0 0 4 51 143 42 5
VCDI 0 0 0 0 1 221 9299 22047
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 0 9 1 0 0 0 0 0
OW 0 18 9 8 2 0 0 0
VODI 0 12 13 31 56 14 0 0
ODI 0 19 5 10 35 22 1 0
CDI 0 4 8 15 59 48 12 13
VCDI 0 0 0 0 3 288 9328 22039


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