xclim.indicators.seaIce package¶

Submodules¶

xclim.indicators.seaIce._seaice module¶

Sea ice indicator definitions.

xclim.indicators.seaIce._seaice.sea_ice_area(siconc='siconc', areacello='areacello', *, thresh='15 %', ds=None)

Sea ice area

A measure of total ocean surface covered by sea ice.

Based on function sea_ice_area().

Parameters:

siconc (str or DataArray) – Sea ice concentration (area fraction). Default: ‘siconc’. [Required units : []]
areacello (str or DataArray) – Grid cell area (usually over the ocean). Default: ‘areacello’. [Required units : [area]]
thresh (quantity (string or DataArray, with units)) – Minimum sea ice concentration for a grid cell to contribute to the sea ice extent. Default: ‘15 %’. [Required units : []]
ds (Dataset, optional) – A dataset with the variables given by name. Default: None.

Returns:

xarray.DataArray, [m2] – sea_ice_area, Sum of ice-covered areas where sea ice concentration exceeds {thresh}. With additional attributes: description: The sum of ice-covered areas where sea ice concentration exceeds {thresh}., cell_methods: lon: sum lat: sum

Return type:

xarray.DataArray

Notes

To compute sea ice area over a subregion, first mask or subset the input sea ice concentration data.

References

“What is the difference between sea ice area and extent?” - NSIDC [2008]

xclim.indicators.seaIce._seaice.sea_ice_extent(siconc='siconc', areacello='areacello', *, thresh='15 %', ds=None)

Sea ice extent

A measure of the extent of all areas where sea ice concentration exceeds a threshold.

Based on function sea_ice_extent().