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: 2023-02-09

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

Model vs. observations, sea ice class contingency tables

Date: 2023-02-03:

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 0 2 0 CDI 0 0 0 1 16 45 48 0 VCDI 0 0 0 25 76 993 14245 30415	...date precedes bulletin

Date: 2023-02-05:

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 14 7 12 0 VCDI 0 0 0 6 119 1080 15434 29194	...date precedes bulletin

Date: 2023-02-07:

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 1 29 6 0 VCDI 0 0 0 0 31 1211 14967 29621	...date precedes bulletin

Date: 2023-02-09:

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 0 0 0 0 VCDI 0 0 0 0 11 922 11743 33190	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 0 0 0 0 VCDI 0 0 0 0 11 922 11743 33190

Date: 2023-02-11:

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 1 5 1 0 VCDI 0 0 0 7 48 1068 15296 29440	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 2 1 5 1 0 VCDI 0 0 0 5 48 1068 15296 29440

Date: 2023-02-13:

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 1 10 3 0 VCDI 0 0 0 0 8 917 14340 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 0 0 ODI 0 0 0 0 0 0 0 0 CDI 0 0 0 0 0 3 7 0 VCDI 0 0 0 0 9 924 14336 30587

Date: 2023-02-15:

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 0 27 15 0 VCDI 0 0 0 0 0 750 12947 32127	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 0 2 15 1 VCDI 0 0 0 0 0 775 12947 32126

Date: 2023-02-17:

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 1 9 19 0 VCDI 0 0 0 6 46 837 12340 32608	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 0 12 49 28 VCDI 0 0 0 6 47 834 12310 32580

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