GSHHG

GSHHG (Global Self-consistent, Hierarchical, High-resolution Geography Database; formerly Global Self-consistent, Hierarchical, High-resolution Shoreline Database (GSHHS)) is a high-resolution shoreline data set amalgamated from two data bases (the CIA world database WDBII, and the World Vector Shoreline database) in the public domain.

The data have undergone extensive processing and are free of internal inconsistencies such as erratic points and crossing segments.

It comes with access software and routines to facilitate decimation based on a standard line-reduction algorithm.

GSHHS is developed and maintained by Dr. Paul Wessel at the University of Hawaiʻi, and Dr. Walter H. F. Smith at the NOAA Laboratory for Satellite Altimetry.

This article contains public domain text created by the U.S. Federal government, taken from the NOAA website at [1]

Semi-transparent orthographic projection, centered on 40° N, 40° W, using shoreline data from GSHHG ("crude level")