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ua-snap / geospatial-vector-veracity

Veracious geospatial vector data for use in SNAP tools.
MIT License
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add distance to ocean (km) column for all rows #60

Closed charparr closed 2 years ago

charparr commented 2 years ago

This PR will be helpful for identifying "coastal" locations across Alaska. This information can be leveraged for selecting datasets (e.g., sea ice) or for triaging API errors where coarse gridded products don't encapsulate the finer squiggles of the AK coastline and thereby do not have data for some coastal communities.

Per discussion with @MikeDelue we've elected to not make a binary coastal-or-not flag based on some threshold distance a location must be from the ocean. There is too much nuance to navigate so we'll just report the distance in KM and let those decisions be sorted out on the client / data end of things.

For reference:

image

Coastline data to generate distances were retrieved from https://www.ngdc.noaa.gov/mgg/shorelines/ and the full resolution, Level 1 (boundary between land and ocean) data were used.

Closes #39

MikeDelue commented 2 years ago

Looks solid here for any purposes we'd use this for at any reasonable scale! Nice job.