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

Validation of sea ice concentration - American sector

Bulletin date: 2023-03-30

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

Model vs. observations, sea ice class contingency tables

Date: 2023-03-24:

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 0 0 0 0 0 0 0 VODI 0 0 0 0 0 0 0 0 ODI 0 0 0 0 37 32 0 2 CDI 0 0 0 0 34 70 5 33 VCDI 0 0 0 0 1 747 4528 40377	...date precedes bulletin

Date: 2023-03-26:

Best estimate	Forecast
...observations not yet available	...observations not yet available

Date: 2023-03-28:

Best estimate	Forecast
...observations not yet available	...observations not yet available

Date: 2023-03-30:

Best estimate	Forecast
...observations not yet available	...observations not yet available

Date: 2023-04-01:

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 0 13 17 0 CDI 0 0 0 0 2 102 49 55 VCDI 0 0 0 0 14 881 6053 38680	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 0 17 25 5 CDI 0 0 0 0 5 95 69 48 VCDI 0 0 0 0 11 884 6025 38682

Date: 2023-04-03:

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 0 5 0 0 CDI 0 0 0 0 19 98 42 28 VCDI 0 0 0 0 50 933 5231 39460	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 0 12 0 0 CDI 0 0 0 0 9 96 36 34 VCDI 0 0 0 0 60 928 5237 39454

Date: 2023-04-05:

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 0 0 0 0 CDI 0 0 0 0 6 15 13 23 VCDI 0 0 0 0 46 723 4190 40850	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 0 1 2 2 CDI 0 0 0 0 4 32 29 6 VCDI 0 0 0 0 48 705 4172 40865

Date: 2023-04-07:

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 0 0 0 0 CDI 0 0 0 0 8 21 29 35 VCDI 0 0 0 0 150 826 5485 39312	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 0 0 0 2 CDI 0 0 0 0 6 10 11 20 VCDI 0 0 0 0 152 837 5503 39325

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