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gis Geographic information systems (GIS) offer a method of integrating and visualizing geographically distributed information. More than just a map, a GIS allows one to store, reference, and display such data, greatly enhancing the ability to understand complex spatial relationships.
Other related USGS websites:
National Mapping Information
Geospatial Data Clearinghouse

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Items below are listed from most recently updated to least recently updated.

These are results 1 through 25 of 116 matches.

Publication
GIS Compilation, Data Collected, Pulley Ridge Deep Coral Reef Region, USGS OF 2005-1089, Title Page
Description: GIS compilation of data from the southern portion of Pulley Ridge on the Florida Platform.
updated: 2008-10-11 pages include:

Research Project
WCMG Coastal Processes Studies
Description: California's beaches and nearshore regions are valuable economic and recreational resources but also provide habitats for numerous sensitive species. During winter storms, the coast represents a potentially dangerous interface between ocean and land, nature and humans. Storms produce high waves, strong currents, and elevated sea level that can rapidly erode beaches and inundate low-lying coastal regions, damaging and/or destroying public and private infrastructure as well as stressing coastal ecosystems. Over longer-time scales (e.g. decadal), persistent erosion exacerbated by the pressures of coastal development, reduction in sediment availability and climate change, can result in severely depleted beaches. The USGS performs research along the California coast to understand the physical processes that control coastal change on time scales from individual storms to decades to support the efforts of local, state and government agencies to make informed coastal management decisions to most effectively preserve and protect this valuable resource.
updated: 2008-09-23 pages include:

Research Project
Southern California Coastal Hazards - USGS WCMG
Description: Southern California Coastal Hazards Study of the USGS Western Coastal and Marine Geology Team
updated: 2008-09-23 pages include:

Publication
Open-File Report 2007-1112, Updated: The National Assessment of Shoreline Change: A GIS Compilation of Vector Cliff Edges and Associated Cliff Erosion Data for the California Coast
Description: USGS report titled, A GIS Compilation of Vector Shorelines and Associated Shoreline Change Data for the Sandy Shorelines of the California Coast; this report contains links to data coverage --GIS-- of shoreline change of sandy shorelines of the California Coast. Version 1.1. The data files in this version have been updated to correct for a projection error. All files and metadata now accurately reference the NAD83 datum.
updated: 2008-09-16 pages include:

Educational Materials
Tsunami and Earthquake Research at the USGS
Description: General information on how earthquakes generate tsunamis and summaries of tsunami research.
updated: 2008-08-01 pages include:

Publication
Open-File Report 2008-1327 - Interferometric Sidescan Bathymetry, Sediment and Foraminiferal Analyses; a New Look at Tomales Bay, California
Description: U.S.G.S. Open-File Report 2008-1327 entitled, Interferometric Sidescan Bathymetry, Sediment and Foraminiferal Analyses; a New Look at Tomales Bay, California. The United States Geological Survey (USGS) in collaboration with Point Reyes National Sea Shore (PRNS), and the Tomales Bay Watershed Council [http://www.tomalesbaywatershed.org/] has completed a detailed bathymetric survey, and sediment and foraminiferal analyses of the floor of Tomales Bay, California. The study goals are to detail the submarine morphology, the sediment distribution, sedimentary features, and distribution of foraminifera to provide a framework for future studies. The USGS collected swath bathymetric data with a SEA SWATHplus interferometric sidescan sonar system (2004, 2005) and an echo sounder system (2006). The data were processed into continuous mosaic images that show bathymetric detail of the bay floor with 0.2-m vertical and 4.0–m horizontal resolution. Acoustic backscatter data from the 2004 and 2005 surveys were processed into 2-m resolution grids. In addition, 27 sediment samples were collected from various parts of the bay for grain size analyses and a comprehensive study of the distribution of foraminifera in Tomales Bay. The foraminiferal analysis determined that the invasive foraminifera Trochammina hadai from Japan was present in Tomales Bay. The project was conducted in response to a request from the National Park Service, and the Tomales Bay Watershed Council who voiced a need to look at the environmental impacts of human input to the surrounding watersheds that ultimately flow into the bay. The mapping, sediment, and foraminiferal data establish a baseline survey for future comparisons of possible geologic and anthropogenic changes that might occur due to changes in land use or development in the surrounding watershed. These data may also aid in determining the possible pathways of pollutants entering the bay from the surrounding watersheds.
updated: 2008-07-31 pages include:

Publication
Data Series 320: Sea-Floor Mapping and Benthic Habitat GIS for the Elwha River Delta Nearshore, Washington
Description: This is a description of selected data layers for the Sea-Floor Mapping and Benthic Habitat GIS for Puget Sound, Washington. From March 1531, 2005, more than 252 km (19.5 km2) of seafloor offshore of the Elwha River Delta in the central Strait of Juan de Fuca was mapped by the USGS Coastal and Marine Geology Program. The purpose of this nearshore mapping was to (1) obtain high resolution bathymetry and acoustic reflectance properties of the seabed, (2) examine and record geologic characteristics of the seafloor, and (3) construct maps of sea-floor geomorphology and habitat. Substrate distribution was characterized with video-supervised statistical classification of the sonar data. Substrate of the survey was dominated by mixed sand-gravel and sand. Numerous boulder reefs were observed west of the river mouth within Freshwater Bay, whereas the sea-floor immediately adjacent to the river mouth was dominated by sand.
updated: 2008-05-07 pages include:

Publication
EAARL Topography-Thomas Stone National
Description: Digital map atlas of lidar-derived topography maps for Thomas Stone National Historic Site
updated: 2008-04-28 pages include:

Publication
USGS-NPS-NASA EAARL Submarine Topography-Northern Florida Keys
Description: Digital map atlas of lidar-derived submarine topography maps for the Northern Florida Keys Reef Tract
updated: 2008-04-25 pages include:

Publication
EAARL Topography-Sagamore Hill National Historic Site (SAHI)
Description: Digital atlas of lidar-derived topography maps for Sagamore Hill National Historic Site
updated: 2008-04-24 pages include:

Publication
EAARL Topography-Gateway National Recreation Area-Home
Description: Digital map atlas of lidar-derived topography maps for the Gateway National Recreation Area
updated: 2008-04-23 pages include:

Publication
EAARL Submarine Topography-Florida Keys National Marine
Description: Digital atlas of Lidar-derived submarine topography maps for Florida Keys National Marine Sanctuary
updated: 2008-04-21 pages include:

Publication
EAARL First Return Topography—Fire Island National Seashore
Description: Digital map atlas of lidar-derived topography maps for Assateague Island National Seashore
updated: 2008-04-21 pages include:

Publication
USGS-NPS-NASA EAARL Bare Earth Topography - Fire Island National Seashore
Description: Digital map atlas of Lidar-derived topography maps for Fire Island National Seashore
updated: 2008-04-21 pages include:

Publication
EAARL Topography-Gulf Islands National Seashore (GUIS)-Florida
Description: Digital atlas of lidar-derived bare earth topography maps for Gulf Islands National Seashore-Florida
updated: 2008-04-17 pages include:

Publication
USGS-NPS-NASA EAARL Topography - George Washington Birthplace
Description: Digital map atlas of lidar-derived topography maps for George Washington Birthplace National Monument
updated: 2008-04-17 pages include:

Publication
EAARL Topography-Cape Cod National Seashore-OF_2007-1375
Description: Digital atlas of lidar-derived bare earth topography maps for Cape Cod National Seashore
updated: 2008-04-17 pages include:

Publication
USGS-NPS-NASA EAARL Topography - Dry Tortugas National Park
Description: This lidar-derived submarine topography map was produced as a collaborative effort between the U.S. Geological Survey (USGS) Coastal and Marine Geology Program, National Park Service (NPS) South Florida/Caribbean Network Inventory and Monitoring Program, and the National Aeronautics and Space Administration (NASA) Wallops Flight Facility. One objective of this research is to create techniques to survey coral reefs for the purposes of habitat mapping, ecological monitoring, change detection, and event assessment (for example: bleaching, hurricanes, disease outbreaks).
updated: 2008-03-24 pages include:

Publication
Geomorphology and Depositional Sub-environments of Assateague Island MD/VA
Description: Geomorphology and Depositional Sub-environments of Assateague Island MD/VA, Open File Report 2007-1388
updated: 2008-03-17 pages include:

Publication
EAARL Topography–Gulf Islands National Seashore
Description: Digital atlas of lidar-derived topography maps for Gulf Islands National Seashore-Mississippi
updated: 2008-03-17 pages include:

Publication
GIS Library, Multibeam Data, Massachusetts Bay, SBNM Sanctuary, USGS Data Series 99; Version 1.0; Start Page
Description: This Geographic Information Systems (GIS) library contains images and grids of bathymetry, shaded relief bathymetry, and backscatter intensity data from surveys of the Stellwagen Bank National Marine Sanctuary and western Massachusetts Bay, offshore of Boston, Massachusetts. The data are in an Environmental Systems Research Institute (www.esri.com) (ESRI) ArcMap 9.1 Geographic Information System project. The shapefiles, images, and grids may also be downloaded individually. Descriptions and interpretations of the data are available in a series of published maps.
updated: 2008-03-06 pages include:

Research Project
Open-File Report 2007-1271: Seafloor Mapping and Benthic Habitat GIS for Southern California, Volume III - USGS WCMG
Description: This is a description of selected data layers for the Seafloor Mapping and Benthic Habitat GIS for Southern California
updated: 2008-03-06 pages include:

Publication
EAARL Topography - Assateague Island National Seashore (ASIS)
Description: Digital atlas of lidar-derived topography maps for Assateague Island National Seashore
updated: 2008-02-27 pages include:

Publication
USGS OFR 2005-1428: Digital Mapping Techniques '05
Description: Workshop Proceedings
updated: 2008-02-02 pages include:

Publication
USGS OFR 2007-1012: Geologic Interpretation and Multibeam Bathymetry of the Sea Floor in the Vicinity of the Race, Eastern Long Island Sound, Title Page
Description: Interpretations of the exposed geological units and surface processes of easternmost Long Island Sound and westernmost Block Island Sound based on multibeam bathymetry and high-resolution seismic reflection profiles.
updated: 2008-02-01 pages include:

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Coastal and Marine Geology Program > Online Science Resource Locator > GIS