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LSIB - Simplified Shoreline

Data as of March 8, 2013. These boundary lines were derived from the World Vector Shoreline dataset and match up with the 2013 detailed LSIB polygons.

The 1:250,000 scale World Vector Shoreline (WVS) coastline data is generally shifted by several hundred meters to over a km. To simplify the polygons, the ArcGIS Simplify Polygon tool was used, using the Bend Simplify algorithm with a maximum allowable offset of 3 miles. Topology was then corrected for any errors produced by the simplification process. For convenience, the dataset is broken out into regions: (1) Africa, (2) Asia and Russia, (3) Europe and Southwest Asia, (4) North America, (5) Oceania, and (6) South America. In the zip file, there is also a global dataset (approximately 24 MBs) that includes all the data.

There are no restrictions on use of this public domain data. This dataset will be updated as needed and is current as of March 08, 2013.

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Metadata

Source US Dept. of State Office of the Geographer
Contributor U.S. Department of State - Humanitarian Information Unit
Date of Dataset Mar 08, 2013
Expected Update Frequency Every two weeks
Location
Visibility
Public
License Public Domain / No Restrictions
Methodology

To simplify the polygons, the ArcGIS Simplify Polygon tool was used, using the Bend Simplify algorithm with a maximum allowable offset of 3 miles. Topology was then corrected for any errors produced by the simplification process.
Caveats / Comments

There are no restrictions on use or distribution of this public domain data set.
Tags
coordinates
geodata
hydrology
lsib
shapefile
shoreline
usg