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. The shorelines are constructed entirely from hierarchically arranged closed polygons. The four-level hierarchy is as follows: seashore, lakes, islands within lakes, ponds within islands within lakes.
3-588: The data can be used to simplify data searches and data selections, or to study the statistical characteristics of shorelines and land-masses. 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
6-536: The U.S. Federal government, taken from the NOAA website at [1] This cartography or mapping term article is a stub . You can help Misplaced Pages by expanding it . This database -related article is a stub . You can help Misplaced Pages by expanding it . This oceanography article is a stub . You can help Misplaced Pages by expanding it . Paul Wessel (geophysicist) Pål Wessel (August 31, 1959 – March 26, 2024) pronounced as, and also known as Paul Wessel ,
9-842: Was a professor of the Department of Geology and Geophysics at the School of Ocean and Earth Science and Technology (SOEST) at the University of Hawaiʻi at Mānoa . He taught as a visiting professor at Sydney University in Australia and University of Oslo in Norway. Wessel was a Fellow of the Geological Society of America . In the 1980s, Wessel and Walter H. F. Smith created Generic Mapping Tools (GMT) , an open-source collection of computer software tools for processing and displaying geographic and Cartesian datasets. They later supplemented this with
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