polartoolkit.fetch.etopo

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polartoolkit.fetch.etopo#

etopo(region=None, spacing=None, registration=None, hemisphere=None, epsg=None, **kwargs)[source]#

Loads a grid of Antarctic topography from ETOPO1 from ETOPO1 1 Arc-Minute Global Relief Model: Procedures, Data Sources and Analysis[1]. Originally at 10 arc-min resolution, reference to mean sea-level (geoid).

originally from https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.ngdc.mgg.dem:316 Accessed via the Fatiando data repository fatiando-data/earth-topography-10arcmin

Parameters:

  • region (tuple[float, float, float, float], optional) – region to clip the loaded grid to, in format [xmin, xmax, ymin, ymax], by default doesn’t clip

  • spacing (str or int, optional) – grid spacing to resample the loaded grid to, by default 10e3

  • registration (str, optional) – change registration with either ‘p’ for pixel or ‘g’ for gridline registration, by default is None.

  • hemisphere (str, optional) – choose which hemisphere to retrieve data for, “north” or “south”, by default None

  • epsg (str | None) – choose which region to retrieve data for, either “3031” or “3413”, by default None

  • **kwargs (optional) – additional keyword arguments to pass to the resample_grid function

Returns:

Returns a loaded, and optional clip/resampled grid of topography.

Return type:

xarray.DataArray

References

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