Additional Sources for Offshore Data

Many data sources have proven useful to the cartographers of the Mapping and Boundary Branch. The most useful GIS data sources are listed and linked in this page.

	FGDC Marine Boundary Working Group — Site includes descriptions for the various offshore marine boundaries and links to the GIS data.
	Digital Shoreline of the United States — Derived from NOAA T-sheets (1:5000 to 1:40,000 scale)
	NOAA Coastal Services Center — Spatial data including LIDAR, AVHRR, Benthic data, etc
	National Hydrography Data set — Rivers, Streams, Coasts, etc. A joint project by USGS and EPA
	NGDC Coastline Extractor — Choose from four digital coastlines 1:70,000 to 1:5,000,000 scale
	National Marine Sanctuaries — Information on National Marine Sanctuaries in the U.S
	NOS Data Explorer — NOAA’s Ocean Service’s portal to various NOS data sets
	FGDC Geospatial Data Clearinghouse — A collection of over 250 spatial data servers. These data collections can be searched through a single interface based on their descriptions, or "metadata."
	GEO-DATA Explorer — Access, view, and download information from geo-spatial databases containing a broad spectrum of data produced by the USGS and other government agencies
	National Atlas — Contains a wide variety of nationwide coverages at 1:1,000,000 scale
	Earth Explorer — Query and order satellite images, aerial photographs, and cartographic products through the U.S. Geological Survey
	Maritime Claims Reference Manual — A compendium of world wide maritime claims
	International Boundaries Research Unit (IBRU) — At the University of Durham has links to boundary related web sites around the world.