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NGA Coastline Data

Fri, 01 Aug 2008

I came across the NGA Prototype Global Shoreline Data, otherwise known as NGA PGS, after a link from the EVS Islands Project. This seems to be one of the best (freely available!) world datasets around at the moment. Its derived from LANDSAT 7 (GeoCover) multi-spectral imagery and uses the Short-Wave Infra-Red (SWIR) bands to define the land water interface to about 50m. Gaps are in the dataset due to cloud, snow and ice (~10%). Well worth a look!

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