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Geolocation measurement
Methods for establishing a geographic location on the surface of the earth.
Subtopics:
Altimetry measurement (1 items)
Bathymetry measurement (20 items)
GPS measurement (9 items)
Land surveying (3 items)
Related topics:
Results 1 - 33 of 33 listed by similarity [list alphabetically]
Detection and measurement of land subsidence using Global Positioning System surveying and interferometric synthetic aperture radar, Coachella Valley, California, 1996-2005 [New Window]
Detailed measurements of elevation help to understand the extent and severity of subsidence. Study asks if subsidence indicates the aquifer system is compacting temporarily or permanently, and are the changes human-induced or tectonic.
PDF A volcano rekindled; the renewed eruption of Mount St. Helens, 2004-2006 [New Window]
Atlantic margin offshore sediments: cooperative database and GIS development website [New Window]
This site is designed to provide information on federal interagency and cooperative developments related to coastal sand and gravel resources and management issues along the Atlantic continental margin.
Bering and Chukchi Sea databases bathymetry coverages [New Window]
Downloadable files of digital bathymetry of U.S. waters, the Bering and Chukchi Seas, Bering Strait, and Gulf of Anadyr in polygon ARC/INFO. Coverage generated from both digital and paper bathymetry sources developed to support marine research.
Central California Digital Elevation Model (DEM) and bathymetry images [New Window]
Digital Elevation Model (DEM) images and bathymetry data of the San Francisco Bay, Santa Clara, and the Monterey Bay and Canyon areas.
Coastal and Marine Geology (CMG) InfoBank [New Window]
Access to InfoBank, an online data catalog, to browse or retrieve coastal and marine geology program information, images, and data on gravity, bathymetry, seismic activity, magnetics, samples, facilities, cruises and equipment.
Cruise report by Coastal Surveyor Cruise C-1-99-SC: multibeam mapping of the Long Beach, California, continental shelf [New Window]
Description of the work and results of a cruise by the Pacific Sea Floor Mapping project to map the Long Beach, California continental shelf based on data from high-resolution multibeam technology.
Gulf of the Farallones regional bathymetry and sidescan-sonar digital mosaics [New Window]
Remotely sensed image products covering the Gulf of the Farallones region west of San Francisco.
Hurricane and extreme storm impact studies: coastal and nearshore mapping with oblique aerial video and still photography [New Window]
Information on video and still photography used to supplement laser altimetry measurements of the coast. The photography is used for recognizing geomorphic and cultural features impacted by storms. Links to photo collections of hurricanes and El Nino.
Hurricane and extreme storm impact studies: coastal and nearshore mapping with scanning airborne laser (LIDAR) [New Window]
Airborne scanning laser surveys (LIDAR) are used to obtaining data to investigate the magnitude and causes of coastal changes that occur during severe storms. Links to examples of coastal mapping during specific hurricanes.
Hydrates cruise in the Gulf of Mexico [New Window]
Investigation of the upper- and middle continental slope of the Mississippi Canyon, including the Gulf of Mexico, for the distribution of gas-hydrate deposits with links to a DEM image map, bathymetry data, and research technology.
Land subsidence and aquifer-system compaction in the Tucson Active Management Area, south-central Arizona, 1987-2005 [New Window]
Results of ground-surface monitoring and borehole water table measurements document subsidence of the land surface correlative with changes in the ground water.
Land subsidence from ground-water pumping [New Window]
Online report for an interactive workshop Impact of Climate Change and Land Use in the Southwestern United States. Discusses land subsidence due to increased ground water pumping in the Southwest and the damage caused by subsidence.
Lewis and Clark and the U.S. Geological Survey in North Dakota [New Window]
Homepage linking the historic journey of Lewis and Clark and the research of the USGS in the same region with links to mapping history, remarkable points on the Missouri River, educational activities, photo gallery, and publications.
Multibeam data and socio-economic issues in west-central San Francisco Bay [New Window]
Webpage based on USGS Open File Report 98-139 links to information on the San Francisco Bay estuary to study dredge disposal effects, fish habitats, sediment transport, rock pinnacles and navigation, and consequences of a large oil spill.
Multibeam mapping of selected areas of the outer continental shelf, northwestern Gulf of Mexico: data, images, and GIS [New Window]
Report provides the multibeam bathymetry and acoustic backscatter data, images, FGDC-compliant metadata, and GIS data from the 2002 surveys and 1997 USGS surveys of the Gulf.
Multibeam mapping of the Pinnacles region, Gulf of Mexico [New Window]
Report on multibeam sonar imaging to produce bathymetric mapping of the reef tract known as The Pinnacles, northern Gulf of Mexico with links to images (ASCII or ArcInfo formats), data, metadata, ArcExplorer 2.0 project, and cruise report.
Multibeam mapping of the West Florida Shelf, Gulf of Mexico [New Window]
Georeferenced high-resolution mapping of bathymetry of the West Florida Shelf, Gulf of Mexico of areas suspected to be critical benthic habitats for fisheries. Includes links to images, data, metadata, and TIFF image files.
Nearshore Benthic Habitat Project [New Window]
Homepage for the Nearshore Benthic Habitats Project for mapping geophysical characterization of the coastal sea floor to identify benthic fish and shellfish habitat with links to research cruises and preliminary results.
Pacific Seafloor Mapping Project [New Window]
Homepage for the Pacific Sea floor Mapping Project with links to images, downloadable data, applications, fly-by movies, products, publications, and contacts for studies of San Francisco Bay, Puget Sound, Lake Tahoe, and other Pacific areas.
Radio tracking manatees to assess the impact of hydrologic changes in southwest Florida [New Window]
Report on the Sirenia Project use of a radio tracking study to determine manatee movement patterns and habitat to develop ecological models to understand and predict the effects of hydrologic restoration on manatees in Southwest Florida.
Reservoir sediment studies in Kansas [New Window]
Report of completed reservoir sediment studies in Kansas using a combination of bathymetric surveying, sediment coring, chemical analysis, and statistical analysis to understand the quantity and quality of deposited sediment.
San Francisco Bay bathymetry web site [New Window]
Provides location-depth grids of bathymetry available for San Francisco Bay and tools for examining those grids. Data provided as GIS grids and animations.
San Francisco Bay: Central Bay region multibeam backscatter and bathymetry mosaics [New Window]
Landsat TM and bathymetry mosaic images of sediment and pollutant transport in central San Francisco Bay.
Satellite technologies detect uplift in the Yellowstone Caldera [New Window]
Explanation of uplift in the land surface of the northern part of the Yellowstone caldera (12cm, about ~5 inches) that occurred between 1997 and 2003, including the scientific methods by which it was detected and analyzed.
Southern California Integrated GPS Network (SCIGN) [New Window]
Homepage for the Southern California Integrated GPS Network (SCIGN) Pasadena Field Office involved in operating GPS stations, data recording, and supplying of earthquake data. Links to GPS data analysis, photos, and technical information.
The Parkfield Experiment - capturing what happens in an earthquake [New Window]
Fact sheet describing plans for a San Andreas Fault Observatory at Depth (SAFOD) by drilling into the fault to install instruments for long-term monitoring near the location of the magnitude 6 Parkfield earthquakes.
The sea-floor mapping facility at the U.S. Geological Survey Woods Hole Field Center, Woods Hole, Massachusetts [New Window]
Fact sheet on the sea-floor mapping facility at Woods Hole describing state-of-the-art technology used to produce accurate geologic maps of the sea floor and reporting on its data-acquisition, data-processing, and archiving capabilities.
Topographic maps [New Window]
General information on topographic maps with links to topographic mapping, USGS topographic maps, digital raster graphics, how to find and order USGS maps, map revision, and map symbols.
U.S. Pacific West Coast internet map server [New Window]
Interactive map of the U.S. Pacific West Coast with data layers of Gloria sidescan data, multibeam backscatter and shaded relief imagery.
USGS studies in the New York Bight [New Window]
Describes and provides links to USGS research in the location of the estuary and coast of Long Island, New York, to map the sea floor and to study sediment transport, contaminants, and sand resources and coastal vulnerability.
Volcano Hazards Program, Long Valley Observatory [New Window]
Overview of the Long Valley Caldera with links to monitoring data including earthquakes and deformations, long-term outlook, volcano hazards in the area, USGS response plan, image gallery, monitoring and topical studies, publications and references.
Western lake catchment systems - Bear Lake region, Idaho-Utah [New Window]
Homepage for project on Bear Lake, Idaho-Utah, to study past climate change and effect on lake catchment basins. Includes link to summary, personnel, geology, methods used including coring and seismic surveying, and publications.


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