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

Validation of sea ice edge, concentration - Full domain

Bulletin date: 2024-01-04

Model: ARC-MFC PHYS (TOPAZ)

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

Sea ice concentration

Difference metrics	Bias (model-obs.)

Sea ice edge length, displacement

Sea ice edge length

Ice edge displacement metrics

Supplementary metrics

Marginal ice zone area	Marginal ice zone width

Relative distance metrics [IE/IIEE]	Integrated ice edge error (IIEE)

Ice Edge Maps

IIEE regions	Ice edges
Best estimate vs. observations,
	Observations in blue, model best estimate in black
Forecast vs. observations,
	Observations in blue, persistence in brown, model best estimate in black, model forecast in grey
Persistence forecast,

Fractions skill score

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