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: 2023-12-19

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

Model vs. observations, sea ice class contingency tables

Date: 2023-12-19:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 159 1264 28 232 132 40 0 0
OW 0 67 3 48 25 15 0 0
VODI 0 100 1 115 62 64 2 0
ODI 0 41 1 136 143 137 21 0
CDI 0 7 0 143 330 391 152 65
VCDI 0 5 0 103 891 3500 7987 29186

Date: 2023-12-21:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 67 877 20 281 149 139 0 0
OW 5 77 1 44 23 19 0 0
VODI 12 117 6 55 42 44 0 0
ODI 1 77 14 69 53 43 4 0
CDI 0 72 2 78 169 157 88 86
VCDI 0 27 4 57 1137 3579 8817 29084

Date: 2023-12-23:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 35 723 3 271 158 111 46 0
OW 3 56 0 39 29 13 14 0
VODI 8 91 2 48 49 20 15 0
ODI 12 86 3 53 50 23 18 0
CDI 0 114 6 119 152 137 94 103
VCDI 0 84 3 196 1349 2786 6633 31841

Date: 2023-12-25:

Forecast
observations
Ice free Ice free
near MIZ
OW VODI ODI CDI VCDI
near MIZ
VCDI
m
o
d
e
l
Ice free 12 654 10 341 185 122 61 0
OW 4 41 2 40 33 8 17 0
VODI 3 53 1 55 42 11 29 0
ODI 0 50 1 53 41 21 37 0
CDI 0 48 0 79 138 133 84 37
VCDI 0 148 1 149 964 3584 12005 26299


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