Methods to depict the connectedness of rock units across fault and fracture zones, allowing us to determine the distribution of geologic units, structural features, and other controlling factors, such as porosity and permeability.
A catalog of earth science data produced by the U.S. Geological Survey with documentation and links to the data files. Catalog is searchable by geographic location and publication series number. Includes links to information on metadata and its use.
Description of the use of Place Keyword Assistant, a software tool, for tagging metadata with geographic names from standardized lists or controlled vocabularies. Includes instructions on use and downloading software files.
Tutorial on geospatial semantics with hands-on exercises using standard Web browsers, divided into two sections, general semantics on the Web and specific examples of geospatial semantics using data from The Open Ontology Repository.
Technical information about several water resource database projects with local, regional, and national scope including the National Environmental Methods Index, the National Water Quality Assessment Data Warehouse, and the USGS Publications Warehouse.
The National Assessment of Coastal Change Hazards is a multi-year undertaking to identify and quantify the vulnerability of U.S. shorelines to coastal change hazards such as the effects of severe storms, sea-level rise, and shoreline erosion and retreat.
The Coastal and Marine Geology Program of the U.S. Geological Survey (USGS) is conducting an analysis of historical shoreline changes along open-ocean sandy shores of the conterminous United States and parts of Alaska and Hawaii.