Smith (1996), A global, self-consistent, hierarchical, high-resolution shoreline database, J. Processing and assembly of the GSHHG data: Download GSHHG data version 2.3.7 (June 15, 2017).Smith if any changes are made to the GSHHG data set for commercial use.

Public license, and is developed and maintained by Dr. Datasets are in WGS84 geographic (simple latitudes and longitudes decimal degrees). Shorelines are organized into four levels: boundary between land and ocean (L1), boundary between lake and land (L2), boundary between island-in-lake and lake (元), and boundary between pond-in-island and island (L4). Geography data are in five resolutions: crude(c), low(l), intermediate(i), high(h), and full(f). GSHHG combines the older GSHHS shoreline database with WDBII rivers and borders, available in either ESRI shapefile format or in a native binary format. The shorelines are constructed entirely from hierarchically arranged closed polygons. GSHHG data have undergone extensive processing and should be free of internal inconsistencies such as erratic points and crossing segments. The WDBII source also provides political borders and rivers. The former is the basis for shorelines while the latter is the basis for lakes, although there are instances where differences in coastline representations necessitated adding WDBII islands to GSHHG. Global Self-consistent, Hierarchical, High-resolution Geography Database (GSHHG) is a high-resolution geography data set, amalgamated from two databases: World Vector Shorelines (WVS) and CIA World Data Bank II (WDBII). Coastline Extractor is no longer available,ĬIA World DataBank II (Rivers and Political

The high isle download free