xclim.indicators.seaIce package

Submodules

xclim.indicators.seaIce._seaice module

Sea ice indicators

xclim.indicators.seaIce._seaice.sea_ice_area(siconc: Union[DataArray, str] = 'siconc', areacello: Union[DataArray, str] = 'areacello', *, thresh: str = '15 pct', ds: Dataset = None) → DataArray

Total sea ice area. (realm: seaIce)

Sea ice area measures the total sea ice covered area where sea ice concentration is above a threshold, usually set to 15%.

This indicator will check for missing values according to the method “skip”. Based on indice sea_ice_area().

Parameters

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

Returns

sea_ice_area (DataArray) – Sea ice area (sea_ice_area) [m2] cell_methods: lon: sum lat: sum description: The sum of ice-covered areas where sea ice concentration is at least {thresh}.

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

xclim.indicators.seaIce._seaice.sea_ice_extent(siconc: Union[DataArray, str] = 'siconc', areacello: Union[DataArray, str] = 'areacello', *, thresh: str = '15 pct', ds: Dataset = None) → DataArray

Total sea ice extent. (realm: seaIce)

Sea ice extent measures the ice-covered area, where a region is considered ice-covered if its sea ice concentration is above a threshold usually set to 15%.

This indicator will check for missing values according to the method “skip”. Based on indice sea_ice_extent().