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Earth characteristics
The measurable, definable properties and features of the earth.
Subtopics:
Atmospheric properties (11 items)
Earth structure (13 items)
Geologic history (33 items)
Geologic structure (27 items)
Gravitational field (earth) (11 items)
Land surface characteristics (30 items)
Magnetic field (earth) (16 items)
Ocean characteristics (53 items)
Rocks and deposits (57 items)
Snow and ice cover (19 items)
Stratigraphic sections (23 items)
Topography (53 items)
Earth material properties (5 items)
Related topics:
Results 1 - 239 of 239 listed by similarity [list alphabetically]
Advanced Very High Resolution Radiometer (AVHRR) sensor characteristics [New Window]
Description of datasets of AVHRR data available from the EROS Data Center in Sioux Falls, SD in three formats: High Resolution Picture Transmission (HRPT), Local Area Coverage (LAC), and Global Area Coverage (GAC).
Development of a global slope dataset for estimation of landslide occurrence resulting from earthquakes [New Window]
Technical description of methods used to generate global slope data from SRTM topography data
Earth tides and volcano monitoring [New Window]
Article in the May 28, 1998 issue of Volcano Watch describing of correlation of earth tides to volcanic eruptions and value in monitoring underground magma movement with deformation measurement instruments including tiltmeters and strainmeters.
EarthExplorer [New Window]
Query and order satellite images, aerial photographs, and cartographic products through the U.S. Geological Survey. Log in as a guest or as a registered user with more privileges. Uses Java Script or Applet Versions for PC, MacIntosh, and Unix programs.
Earthshots, satellite images of environmental change [New Window]
Satellite images of geographic areas of interest, cities, deserts, glaciers, geologic features, disaster areas, water bodies, and wildlife linked with articles, maps, and other images such as AVHRR, photographs, and special project images.
Eastern Earth Surface Processes Team [New Window]
The Eastern Earth Surface Processes Team provides geologic mapping regional geologic studies to determine stratigraphy and geologic structure, topical studies to understand geologic and surficial processes, and syntheses of earth science data.
Glacier effects of the M7.9 Denali fault earthquake of November 3, 2002 [New Window]
Description and photos documenting offsets and 260 km rupture in the Denali glacier in central Alaska after the November 3, 2002 earthquake, the 9th largest earthquake in the United States in the last 200 years.
Global change research - earth surface dynamics [New Window]
Homepage for USGS Global Change Research projects which seek to understand the interrelationships among earth surface processes, ecological systems, and human activities. Links to projects with descriptions and products and downloadable poster.
Interior of the Earth [New Window]
General Interest Publication on the structure of the planet Earth including the crust, the mantle, and the core with drawings to scale on the cover and a table listing the thickness of the parts.
PDF Monitoring the Earth's dynamic magnetic field [New Window]
Describes the reasons why USGS monitors Earth's magnetic field and the history of that monitoring effort.
The Earth's crust [New Window]
Information on the Earth's crust with a contour map of the thickness plus links to a global crustal database, a global crustal model - CRUST 5.1, and regional crustal models.
This dynamic planet: World map of volcanoes, earthquakes, impact craters, and plate tectonics [New Window]
Online world map with booklet (PDF format) giving an account of plate tectonics, volcanology, earthquake activity, and impact craters.
What on Earth is plate tectonics? [New Window]
Discussion and diagrams on plate tectonics and the structure of the Earth for beginners with link to a detailed version: This Dynamic Earth for more information.
Access USGS - San Francisco Bay and Delta [New Window]
Main page for accessing links for information and data on the San Francisco Bay estuary and its watershed with links to highlights, water, biology, wetlands, hazards, digital maps, geologic mapping, winds, bathymetry and overview of the Bay.
Acid rain and our Nation's Capital [New Window]
This booklet focuses on acid rain and its impact on our Nation's capital.
Alaska Geographic Science Office [New Window]
Webpage of the Alaska Geographic Sciences Office with links to the Bureau level programs it is responsible for managing: Geographic Analysis and Monitoring (GAM), Land Remote Sensing (LRS), and Cooperative Topographic Mapping (CTM).
Alaska Geospatial Data Clearinghouse [New Window]
Clearinghouse for the description and availability of multiple geospatial datasets relating to Alaska from many federal, state and local cooperating agencies under the coordination of the Alaska Geographic Data Committee.
Alaska mineral resources [New Window]
Reports, data, and current research on mineral resources in Alaska
America's volcanic past - volcanic highlights and features [New Window]
Links to volcanism, volcanic history, volcanic rocks, and general geology by state, by region, national parks and national monuments and a brief introduction to volcanism around the U.S. entitled: Windows into the past.
An interpretation of the 1977 Airborne Electromagnetic (AEM) survey, Fort Huachuca vicinity, Cochise County, Arizona [New Window]
Complex report on the interpretation of aeromagnetic data to study hydrogeology of the San Pedro basin, Cochise County, Arizona determining geologic structure, basin fill and depth to water. Online version of a CD-ROM publication.
Aquatic features, bathymetry, and navigation structures in the upper Mississippi River [New Window]
Geospatial hydrologic and reference data covering the upper Mississippi River, provided in formats appropriate to geographic information systems (GIS) and used in long-term resource monitoring of the area.
Aquifer basics [New Window]
Links to general information on water supply by aquifers based on rock types and to principal national aquifers by name.
Asbestos: geology, mineralogy, mining, and uses [New Window]
Report on asbestos, six types of mineral fibers belonging to two mineral groups, serpentines and amphiboles,with fiber morphology, crystal structure, analytical methods, properties, mining, milling, uses, and safety factors.(PDF file,28 pp.,4.5 MB)
Assessing the impacts of climate variability and change on the Nation's resources [New Window]
Site for a USGS project under the U.S. Global Change Research Program for a national assessment of the impacts of climate variability and change on resources with links to impacts in Alaska, western U.S., public lands, and water resources.
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.
Atlas of Antarctic research [New Window]
Entry to the Atlas of Antarctic Research giving a common base map for displaying research results, data, and descriptions of projects. Layers can be viewed or downloaded as Digital Elevation Models (DEMs), digital aerial photos, and satellite images.
Availability of USGS geospatial data and aerial photography products [New Window]
Website to search and locate United States digital cartographic data (U.S. GeoData and Digital Raster Graphics) and aerial photography of the National Aerial Photography Program (NAPP). Files can be downloaded in HTML or PDF format.
BRASS: Bedrock Regional Aquifer Systematics Study [New Window]
Description of the project to publish new bedrock geologic maps in the United States to advance the understanding of the region's bedrock aquifers. Includes list of projects.
Bedform sedimentology [New Window]
Bedform sedimentology home page with links to information on sedimentary structures including, explanatory text, computer-generated images and movies, photographs, and bedform simulation software.
Bedrock and soil geochemistry from Voyageurs National Park, Minnesota [New Window]
Maps and text (Word or PDF format) and database (Excel or HTML format) for bedrock, forest floor, and mineral soil sampling in Voyageurs National Park, Minnesota to establish the background and baseline geochemistry and terrestrial mercury sources.
Benchmark glaciers [New Window]
Summary of the USGS benchmark glacier program to intensively monitor climate, glacier motion, glacier mass balance, glacier geometry, and stream runoff at three glacier basins, Gulkana and Wolverine in Alaska and South Cascade in Washington.
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.
PDF Beyond the Golden Gate--oceanography, geology, biology, and environmental issues in the Gulf of the Farallones [New Window]
A geologic and oceanographic study of the waters and Continental Shelf of Gulf of the Farallones adjacent to the San Francisco Bay region. The results of the study provide a scientific basis to evaluate and monitor human impact on the marine environment.
Biological resource status and trends: Contaminants in air [New Window]
Information concerning status and trends of biological resources, focusing on contaminants in air
Biological resource status and trends: Contaminants in soil [New Window]
Information concerning status and trends of biological resources, focusing on contaminants in soil
Carolina slate belt gold deposits in Virginia, North Carolina, South Carolina, and Georgia [New Window]
Report of research on the Carolina slate belt and gold deposits in Virginia, North Carolina, South Carolina, and Georgia with geologic mapping, mineralogic, geochemical, and fluid evolution studies, radiogenic dating, and stable isotope studies.
Cascadia subduction zone: two contrasting models of lithospheric structure [New Window]
Summary of an investigation of the Cascadia subduction zone with detailed density-modeling experiments of the crust and mantle along two transects across Vancouver Island and the Canadian margin and the other on the margin of central Oregon.
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.
Climate and droughts [New Window]
Article from Water Supply Paper 2375 summarizing the correlation of precipitation, temperature, and atmospheric moisture with the frequency and intensity of a drought.
Climate-Driven Ocean Changes Affect Estuaries [New Window]
Research findings and examples of application to real problems--Pacific Ocean cooling triggers phytoplankton blooms in San Francisco Bay.
Coal-bed methane: potential and concerns [New Window]
Fact sheet in PDF format on occurrence and recoverability of coalbed methane in the U.S. and related environmental concerns.
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.
Coastal and Marine Geology Program [New Window]
Home page for Coastal and Marine Geology with links to topics of interest (sea level change, erosion, corals, pollution, sonar mapping, and others), Sound Waves monthly newsletter, field centers, regions of interest, and subject search system.
Coastal and Marine Geology Program interactive map server [New Window]
Interactive map server to view and create maps using available coastal and marine geology data sets of offshore and coastal U.S. and the Gulf of Mexico. Links to available data and metadata that can be downloaded.
Coastal ocean modeling at the USGS Woods Hole Field Center [New Window]
Fly-by and circulation movies, effluent concentration, tidal flushing, sea level, and temperature in Massachusetts Bay and Boston Harbor
Compilation of various geologic time scales [New Window]
Preliminary report comparing various geologic time scales. Text is HTML or plain text format, and colored compilation chart in Excel format.
Continental shelf GIS for the Monterey Bay National Marine Sanctuary [New Window]
Interactive maps of the continental shelf of the Monterey Bay National Marine Sanctuary with GIS layers for sediment data, bathymetry, geology, bathymetry, sonar imagery, and tectonics.
Core Research Center [New Window]
Overview of the Core Research Center (CRC) in Denver for preserving valuable rock cores for permanent storage and making the cores available for examination and testing. Includes links to services, well reports, and resources.
Crater Lake Data Clearinghouse [New Window]
The Crater Lake Data Clearinghouse website is a gateway to information and data on Crater Lake with links to data downloads of bathymetry, maps and imagery, a fly-by movie, photos, and information on geology, maps, history, and biota.
Cross-bedding, bedforms,and paleocurrents [New Window]
The on-line version of Cross-Bedding, Bedforms, and Paleocurrents, with computer images, photographic images, and text.
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.
Deserts, geology and resources [New Window]
Online edition of booklet describing desert geology and mineral resources.
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.
Diatoms: applications [New Window]
Use of diatoms in biostratigraphy, coastal and estuarine studies, paleoceanology, paleoliminology, earthquake studies, environmental quality and forensic studies. Includes listing of USGS diatom projects and links to other diatom websites.
Digital Orthophoto Quadrangles (DOQs) [New Window]
Description of what Digital Orthophoto Quadrangles are and how to obtain them plus information on the DOQ program, points of contact, DOQ status graphic, examples of DOQs, and free data viewer software.
Digital library: USGS Monterey Bay science [New Window]
Online catalog of scientific reports and data around and about Monterey Bay, California, indexed by author, agency, project, location, feature type, and topic
Digital shorelines for Boston Harbor [New Window]
Modified version of paper by F.T. Manheim and A.G. McIntire, Civil Engineering Practice, Vol. 13, No. 1, pp. 35-48 (1998). A new shoreline file has been created for Boston Harbor by digitizing and combining the most recent charts.
Dinosaurs, fact and fiction [New Window]
Online booklet with answers to frequently asked questions about dinosaurs.
PDF Discontinuous nature of kriging digital terrain models [New Window]
Research exploring the mathematical properties of kriging, a widely-used surface interpolation method. The continuity properties of kriging digital terrain models over a wide range of terrain types helps hydrologists assess the usefulness of kriging for D
Early Paleozoic biochronology of the Great Basin, western United States [New Window]
Publication (PDF format) in three parts on the biostratigraphy and lithostratigraphy of the Ibexian Series in the North American Ordovician, with sections on the southern Egan Range, Nevada and the biostratigraphy of the eastern Great Basin.
Education resources for paleontology [New Window]
Contacts and other sources of information for teachers, students, and others interested in paleontology with links to related USGS websites and on-line publications.
Erosion of a sea stack over 100 years [New Window]
Series of photographs showing the demise of Jump-off Joe, a sea stack at Nye Beach, Newport, Oregon from 1890 as a result of erosion.
Extent of Pleistocene lakes in the western Great Basin [New Window]
Map of Pleistocene pluvial lakes in the western Great Basin (Nevada, eastern California, southern Oregon). Includes metadata, online PDF map view, and downloadable ArcInfo export files, ArcView shapefiles, and TIFF files.
Flagstaff Field Center [New Window]
Homepage for the Flagstaff Field center with links to space science, water and ice studies, earth sciences, biological resources, Grand Canyon Monitoring and Research Center, outreach & education, data and software, and images.
Flow through unsaturated fractured rock [New Window]
Site describes studies using flow visualization and rock matrix pressure measurements to study flow through fractures in the unsaturated zone, which plays an important role in water infiltration and contaminant transport.
Fossil groups: Vertebrates [New Window]
Information on vertebrate fossils and their use in paleontologic research in biostratigraphy, paleoclimatology, paleobiology, paleoecology, and earth history.
Fossils, rocks, and time [New Window]
Booklet describes how paleontologists use the identification of fossils to recognize rocks of the same or different ages.
GISDATA Map Studio [New Window]
Access to public web map services and interfaces developed at the EROS Data Center searchable by keywords and categories with interactive maps, viewer templates, information sheets and latest news items and updates on geospatial products.
GLORIA Mapping Program [New Window]
GLORIA is a digital sidescan sonar capable of producing digital image maps of the sea floor from reflected sound waves. Site includes description of digital processing, mosaicking, and links to samples of image maps.
Generalized surficial geologic map of the Pueblo 1 degree x 2 degree quadrangle, Colorado. [New Window]
Surficial geologic map of the Pueblo quadrangle in Colorado with text and references in PDF format, metadata, and GIS files to download.
Geochemical sediment analysis procedures [New Window]
Manual of chemical sediment analysis using Coulometer and CHN Analyzers to measure carbon content, spectrometric analysis for biogenic silica, and radiochemistry to measure isotopes. Includes techniques,sample preparation, and safety procedures.
Geochronology [New Window]
Description of the methods of geochronology used to estimate the dating of rocks and sediments with links to technique, equipment and contacts for a variety of methods.
Geographic data download [New Window]
Site to download various geographic datasets with links to FTP file access, status maps, public domain software, and Spatial Data Transfer Standard (SDTS) information. These datasets are not directly viewable.
Geography [New Window]
Portal to national mapping programs and products of the Geography Discipline with multiple links to databases, datasets, map products, National Map, National Atlas, GISDATA web, National Spatial Data Infrastructure, and geographic names.
Geography research programs in Alaska [New Window]
Descriptions, results, and data on research projects using geographic analysis and monitoring and remote sensing to study ecosystems and land processes in the Arctic region.
Geologic history of Cape Cod, Massachusetts [New Window]
Describes the history, geologic changes (including the glacial formation and sea level changes), and geologic mapping of Cape Cod, Massachusetts.
Geologic history of Long Valley Caldera and the Mono-Inyo Craters volcanic chain, California [New Window]
Summarizes the geologic and volcanic activity of the Long Valley Caldera and Mono-Inyo Craters volcanic chain in east central California.
Geologic map of the Eagle quadrangle, Eagle County, Colorado [New Window]
The Eagle quadrangle covers an area that straddles the Eagle River and Interstate 70 (I-70) and it includes the town of Eagle, Colo., which is located in the southwestern part of the quadrangle, just south of I-70 and the Eagle River, about 37 km west of
Geologic time online edition [New Window]
Booklet giving general explanations of geologic time, major divisions of geologic time, relative and radiometric time scales, index fossils, and the age of the earth.
Geologic time scale chart [New Window]
Chart of the geologic time scale with references.
Geology [New Window]
Homepage about the Geology Discipline with links to what's new, publications, real-time hazards information, partnerships, fellowship program, and major science programs.
Geology and hydrogeology of the Florida Keys [New Window]
Article on geology and hydrogeology of the Florida Keys with sections on Holocene and Pleistocene geology, water resources, and introduction with a brief history and overview of early studies.
Geology of the onshore part of San Mateo County, California: a digital database [New Window]
This digital map database represents the general distribution of the geology (bedrock and surficial deposits) in San Mateo County. Accompanying text file (*.txt or *.ps) provides current information on the geologic structure and stratigraphy.
Geology, geochemistry and geophysics of sedimentary rock-hosted Au deposits in P.R. China [New Window]
Second report of a joint project with the Tianjin Geological Academy to study sedimentary rock-hosted Au deposits in China. Links to text in PDF format with appendices in *.pdf, *.xls, *.csv, *.jpg, and *.tif formats. Also readme file of CD-ROM version.
Geomagnetic FAQs [New Window]
Frequently-asked questions, with answers, about the Earth's magnetic field.
Geomagnetic charts [New Window]
Links to charts of the Earth's magnetic field in different projections showing declination, inclination, and total, horizontal and vertical intensities plus references and note on limitations.
Geomagnetic models [New Window]
Description of magnetic models with link to on-line calculation, freeware calculator (DOS and Windows), descriptions of model types, and references.
Geomagnetic observatories [New Window]
Map showing geomagnetic observatories, with detailed information about each one
Geophysical products [New Window]
Links to products of magnetic, gravity, magnetotelluric, and multi-discipline reports and surveys of regions in the U.S. and Antarctica plus geophysical software tools. Some products are in PDF format.
Geopubs: on-line geologic publications of the western United States [New Window]
Access to USGS on-line geologic publications of the western United States categorized by state, region USGS series, geologic maps, and software with links to state geologic survey publications.
Geoscience Data Catalog [New Window]
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.
Glaciers and glaciations - ice sheets, glacial lakes, tuyas - jökulhlaups and glacial hazards [New Window]
Links to background information on glaciers, glacier hazards, ice sheets and glaciations, glacial lakes, specific glaciers, terminology, bibliographies, and related useful links.
Global Change Hydrology Program (hydroclimatology) [New Window]
Review of the Global Change Hydrology Program components relating to hydroclimatology and studies of the biogeochemistry of greenhouse gases with links to research activities, datasets, fact sheets, and other publications and websites.
Global sea-surface temperature and sea-ice concentration: data display software [New Window]
Downloadable data with software showing composite average ocean characteristics (sea-surface temperature and sea-ice concentration). Includes documentation, source code, data, and executable programs for Linux and Microsoft Windows.
Glossary of terms in paleontology [New Window]
Dictionary of terms associated with paleontology with brief definitions.
Gulf of Maine internet map [New Window]
Gulf of Maine regional overview interactive map depicting research activities of the U.S. Geological Survey showing surficial sample sites, bathymetry, continental margin and coastal areas.
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.
Historical mapping [New Window]
Information on researching and locating historical maps with reference to basic references and collections of the National Archives, Library of Congress, and the U.S. Geological Survey. Includes instructions for ordering copies of historic USGS maps.
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.
Hydrogeologic framework of Antelope Valley and Bedell Flat, Washoe County, west-central Nevada [New Window]
Description of the hydrogeologic framework of Antelope Valley and Bedell Flat in west-central Nevada north of Reno-Sparks area. Gravimetric and seismic-refraction methods were used in the study. Report available in PDF format or HTML format.
Information on fossils and fossil collecting [New Window]
Links to general interest publications, special references, and other sources for fossil and fossil collecting information.
International Polar Year 2007-2008 [New Window]
Scientific studies on the polar regions will receive greater attention during 2007-2008 as a result of USGS participation in the International Polar Year, coordinated in the US by the National Research Council, NSF, and NASA.
Introduction to geologic mapping [New Window]
A brief summary of the principles and practices of geologic mapping.
PDF Introduction to potential fields: Gravity [New Window]
Explanation of the Earth's gravitational field, emphasizing how USGS scientists measure gravity and portray these measurements on maps. Explains terminology of gravity anomaly maps and their relationship to the rock types and other geologic features.
PDF Introduction to potential fields: Magnetics [New Window]
Explanation of the Earth's magnetic field and how USGS measures it. Defines magnetic anomaly, induced and remanent magnetism in rocks, and describes magnetic anomaly maps.
Investigating the Chesapeake Bay impact crater [New Window]
Links to information on the formation and structure of Chesapeake Bay including online reports, recent field work, field work archives, cooperating agencies, bibliography, and links to articles about other terrestrial impact craters.
Laboratory manual for x-ray powder diffraction [New Window]
Report presents an abridged guide for laboratory technicians and students using X-ray powder diffraction methodology to study crystalline structure and to determine the mineralogy of finer grained sediments, especially clays.
Lake Tahoe Data Clearinghouse [New Window]
This website is a gateway to information and data on Lake Tahoe with links to Lake Tahoe Initiative, geography, history, lake facts, GIS Data, DEM, DOQ, DLG imagery, bathymetry, satellite imagery, land cover, census, soils, pictures, and general maps.
Land Remote Sensing Program [New Window]
Land Remote Sensing Program (LRS) provides a primary source of remotely sensed data and applications of land remote sensing, nationally and internationally.
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.
Landsat Project [New Window]
Home page for the Land Remote Sensing Satellite Program (Landsat) used to gather information about land surface features of the earth. Includes images, links to general and technical information, ordering of data, and partners.
PDF Limestone; a crucial and versatile industrial mineral commodity [New Window]
Usefulness of limestone, problems encountered in finding and exploiting suitable limestone resources
Long Island Sound [New Window]
Long Island Sound interactive map with GIS datasets and sonar imagery.
Long Island Sound sidescan sonar mosaics [New Window]
Sidescan sonar image, surficial geologic interpretation, and bathymetry of the Long Island Sound sea floor.
Louisiana continental slope [New Window]
Louisiana continental slope interactive map with GIS datasets and sonar imagery.
Magnetic and gravity anomaly maps of West Virginia [New Window]
Colored map in two parts and text in PDF files requiring Adobe Acrobat Reader 3.0 to view.
Maine Cooperative Snow Survey [New Window]
The Maine Cooperative Snow Survey collects, interprets, and distributes information on the depth and water content of Maine's snowpack in the late winter and early spring, when the danger of flooding in Maine's rivers and streams is greatest.
Maine river ice monitoring system [New Window]
The USGS in Augusta, Maine monitors river and ice conditions in areas of ice accumulation on the Kennebec River near Augusta providing real-time river stage data and real-time pictures of ice conditions at this location.
Major fossil groups [New Window]
Discusses how fossils can be grouped and studied by size, habitat type, and phylogenetic groups. Shows how fossil classification groups are used to solve geologic problems at the USGS.
Mapping Partnership Office of Texas [New Window]
Guide to the cooperative mapping programs in the state of Texas administered by the USGS Texas Mapping Partnership Office. Provides description of ongoing projects with links to USGS and cooperator datasets for the state of Texas.
Maps On Demand: limited printing of digitally supported U.S. Geological Survey maps and reports [New Window]
The USGS provides map-on-demand (MOD) printing for selected infrequently requested geologic and other theme map products providing high-quality paper-copy maps as needed. Site links to available map products with thumbnail views and how to order.
Marine aggregate resources and processes [New Window]
Regional studies mapping the seafloor sedimentary character and assessing marine sand and gravel resources around the United States, to inform beach nourishment and coastal restoration, benthic habitat and sediment transport studies
Marine reserves and biological habitats: Monterey Bay, California [New Window]
Brief description of the research program to inventory the natural resources of Monterey Bay National Marine Sanctuary with links to cruises, and publications and products, including an internet map server, imagery, and geologic descriptions.
Mass Wasting Following the 2002 Missionary Ridge Fire near Durango, Colorado, a Field Trip Guidebook [New Window]
Guidebook with photos, maps, and diagrams explaining how forest fires have affected the likelihood of mass wasting, with discussions of steps taken to minimize future impacts.
Mass wasting presentation [New Window]
Presentation explaining the various types of mass wasting, how they work, and how they differ from one another, with diagrams and photos.
Megafossils: vertebrates - technique of paleontological analyses [New Window]
Brief description of vertebrates and use of their fossil bones and footprints to aid in dating strata in biostratigraphy and to decipher past climates and recreate ancient ecosystems in paleoecology, paleoclimatology and paleobiogeography.
Mid-Continent Mapping Center [New Window]
Overview of the Mid-Continent Mapping Center, Rolla, Missouri: a production, research, and data management facility for maps and digital cartographic data products, with links to directions, programs, mapping products, and visitors center.
Mineral deposit models [New Window]
Publications by the USGS on mineral deposit models converted to digital files that can be downloaded. Some are *.pdf files requiring Adobe Acrobat Reader to view and download text
Mississippi Fan internet map [New Window]
Mississippi River alluvial fan interactive map with GIS data and imagery depicting core sites, depositional and channel interpretation, Gloria and SeaMarc datasets.
Mollusks [New Window]
Information on mollusks and uses of the identification of fossil mollusks in the fields of biostratigraphy, geochronology, paleocoeanography, paleoecology and ecosystems history. Links to experts and related USGS projects.
Moored time series data [New Window]
Oceanographic time-series data obtained from moored instruments, generally provided in NetCDF format.
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.
Multielement geochemical dataset of surficial materials for the northern Great Basin [New Window]
This report presents geochemical data generated during mineral and environmental assessments for the Bureau of Land Management in northern Nevada, northeastern California, southeastern Oregon, and southwestern Idaho, along with metadata and maps.
National Cooperative Geologic Mapping Program [New Window]
Homepage linking to National Cooperative Geologic Mapping Program (NCGMP) components: FEDMAP for federal mapping projects, STATEMAP for state geological survey projects, and EDMAP for geologic mapping education projects.
National Geologic Map Database Catalog [New Window]
Search tool for locating print and online U.S. geologic maps by area, title, author, etc.
National Geologic Map Database Geologic Names Lexicon GEOLEX [New Window]
Search tool for locating lithologic and geochronologic unit names for geologic studies.
National Geomagnetism Program [New Window]
Overview of USGS programs related to geomagnetism including observatories, data, program services, links to models, charts, and movies, program contacts, Intermagnet, Geomag, publications, and bibliographies.
National Hydrography Dataset (NHD) [New Window]
Main page for National Hydrography Dataset (NHD), a comprehensive set of digital spatial data about surface water features, with links to references, data, software tools, applications, tutorials, technical support, and data maintenance.
National Ice Core Laboratory [New Window]
The U.S. National Ice Core Laboratory (NICL) is a facility in the Denver Federal Center, Colorado, for long-term storage, curating, and studying ice cores recovered from the polar regions of the world with information on public tours.
National assessment of coastal vulnerability to sea-level rise: preliminary results for the U.S. Pacific Coast [New Window]
Report on the potential of coastal change due to future sea level rise using the coastal vulnerability index (C.V.I.) with two regional examples in San Francisco and Monterey Bay and Tillamook Head, Oregon, to Ocean Shores, WA.
National assessment of coastal vulnerability to sea-level rise: preliminary results of the U.S. Atlantic coast [New Window]
Brief report on map showing the relative vulnerability of the Atlantic coast to changes due to future rise in sea level. Includes links to similar maps in Open-file report 2000-178 on the Pacific Coast and 2000-179 on the Gulf of Mexico Coast.
National assessment of mercury in aquatic ecosystems [New Window]
Overview of three research programs including determining levels of mercury at selected sites in water, sediment and fish, mercury emissions into the atmosphere, and mercury cycling in the Everglades National Park, Florida.
National geologic studies of benthic habitats, northeastern United States : Stellwagen Bank National Marine Sanctuary Region off Boston, Massachusetts [New Window]
Geological research of the Stellwagen Bank National Marine Sanctuary sea floor are presented in the form of maps, posters, fact sheets, sonar images, and bottom photographs.
National land cover characterization [New Window]
Homepage for the National Land Cover Data (NLCD), a land cover classification scheme, for the United States based on data derived from Landsat Thematic Mapper satellite data. Includes links to description, products, accuracy, and program partners.
Nationalatlas.gov - National Atlas of the United States [New Window]
Portal to general information on the National Atlas of the United States with access for producing specialized maps and links to thematic maps including interactive maps, multimedia maps, map layers data warehouse, wall maps, and printable maps.
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.
Online guide to the continental Cretaceous-Tertiary boundary in the Raton basin, Colorado and New Mexico [New Window]
Field guide describing the geology and paleontology of the continental Cretaceous-Tertiary boundary in the Raton basin, Colorado and New Mexico.
Organic metamorphism in the California petroleum basins: Chapter A - ROCK-EVAL and vitrinite reflectance [New Window]
Part A of a complex report on the results of ROCK-EVAL and vitrinite reflectance analysis of a large sample base from more than 70 wells located in three oil-rich California petroleum basins in order to study the formation of oil deposits.
Organic metamorphism in the California petroleum basins: Chapter B - Insights from extractable bitumen and saturated hydrocarbons [New Window]
Part B of a complex report on the results of geochemical analysis of 75 shale samples from the Los Angeles, Ventura, and San Joaquin Basins to gather observations relevant to exploration regarding the formation of oil deposits in these basins.
Ozone in our air - friend or foe? - depends on where [New Window]
Article on ozone layer and ozone as a pollutant from the weekly newsletter Volcano Watch (Hawaiian Volcano Observatory) for August 20, 2001.
P-wave data from the Indian subcontinent [New Window]
Compilation of P-wave data from the Indian subcontinent Deep Seismic Sounding (DSS) profiles that used refraction and reflection techniques to provide an estimate of crustal thickness across the subcontinent.
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.
Paleomagnetism analyses [New Window]
Links to laboratory capabilities within the USGS for paleomagnetism and paleomagnetic and rock magnetic procedures for dating and determination of magnetic direction and polarity in samples with links to techniques, equipment, and contacts.
Paleontological analyses [New Window]
Links to USGS capabilities in paleontological analyses of fossils such as mollusks, diatoms, palynomorphs, ostracodes, calcareous nannofossils, etc. Includes descriptive information, technique, equipment, and contacts for each fossil group.
Paleontology at the U.S. Geological Survey [New Window]
USGS Paleontology home page documenting the wide diversity in paleontologic studies and applications within the USGS.
Paleontology selected online resources [New Window]
Selection of links to web sites dealing with paleontology and related disciplines including links to museums, academia, societies, surveys, and groups of fossils.
Pennsylvania compressed digital spatial data available for downloading [New Window]
Pennsylvania digital data for watershed boundaries, county geology, and flood mapping in Arc/Info format compressed with gzip utility for downloading plus links to other sources of data.
Photo gallery of the Long Valley area, California [New Window]
Selection of photographic images of the Long Valley area that illustrate the consequences of the past geologic history of the Sierra Nevada, Long Valley Caldera, the Mono-Inyo Craters volcanic chain, glaciation, and faulting.
Photo glossary of volcano terms [New Window]
Illustrates and describes commonly used volcano-related terms.
Potential effects of anthropogenic greenhouse gases on avian habitats and populations in the Northern Great Plains [New Window]
Report on effects of the increase of atmospheric carbon dioxide on plants and animals, especially birds, in the Great Plains including effects of carbon dioxide fertilization, ultraviolet radiation, climate change, and harmful effects on bird habitats.
Potential environmental impacts of quarrying stones in karst - a literature review [New Window]
This report is the result of an extensive literature search to determine the state-of-the-knowledge regarding environmental impacts from quarrying carbonate rocks in karst formations to better use of karst resources in sustainable ways.
Potential hazards from future volcanic eruptions in the Long Valley -- Mono Lake Area, California [New Window]
An introduction to the volcano hazards in the Long Valley area based on the past geologic history of the Long Valley Caldera and the Mono-Inyo Craters volcanic chain.
Preliminary geologic map of the Santa Barbara coastal plain area, Santa Barbara County, California [New Window]
A geologic map of the Santa Barbara coastal plain region in PDF format with data in GIS format (ArcInfo export, shapefile, and TIFF)
Puget lowland paleoseismology [New Window]
Homepage for a paleoseismic field study of the geologic record of prehistoric earthquakes in the Puget Lowland region to evaluate seismic hazards with links to an atlas and reports on historic earthquakes in the Washington and Oregon area.
Raised-relief maps [New Window]
Address list for companies selling shaded and raised-relief maps (three dimensional) to show contours and elevations and may be in plastic, rubber or vinyl and not available from the USGS.
PDF Relations among geology, physiography, land use, and stream habitat conditions in the Buffalo and Current River systems, Missouri and Arkansas [New Window]
River inventory and monitoring [New Window]
Links to science programs on upper Midwest river inventory and monitoring with links to databases on macroinvertebrates, fisheries, vegetation, water quality, bathymetry, floodplain forest, wildlife, sediment, contaminants and nutrients.
Rocky Mountain Mapping Center [New Window]
Home page for the USGS Rocky Mountain Mapping Center in Denver, CO with mapping activities in the western U.S. and links to research activities, products, mapping liaisons, and education.
Salinity variation in an estuary used for oyster cultivation in southeastern North Carolina during the passover of the eye of Hurricane Bertha [New Window]
Review of a study monitoring changes in salinity in Alligator Bay, NC during a 1996 hurricane due to the influx of fresh and saltwater and the effect it would have on oyster aquaculture.
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 imagery: Lake Pontchartrain Basin and Gulf of Mexico [New Window]
Report on satellite imagery collected by the NOAA Advanced Very High Resolution Radiometer (AVHRR) on NOAA polar-orbiting weather satellites. Links are provided to imagery of north-central Gulf of Mexico and of the Lake Pontchartrain.
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.
Schlumberger soundings at the Amargosa Desert Research Site, Nevada [New Window]
Report presenting the data, automatic interpretations, cross sections, and resistivity maps of direct current electrical soundings at the Amargosa Desert Research Site near Beatty, Nevada using a Schlumberger array.
Science challenge questions and answers [New Window]
Report giving a collection of 196 questions and answers on Earth and planetary sciences, such as volcanoes, earthquakes, hydrology, cartography, biology, and minerals for general audiences. Also information on obtaining an audio-CD copy.
Sea-floor mapping technology [New Window]
Integrated shipboard data collection, processing, and archival system for digital sidescan sonar and seismic data used in mapping the inner continental shelf.
Sea-floor morphology between Año Nuevo and Santa Cruz, California [New Window]
Report with preliminary sea floor map displaying submarine rock exposures found along the northern part of Monterey Bay National Marine Sanctuary, extent based on side-scan sonar records, seismic-reflection records, and underwater video.
Seabed Observation and Sampling System (SEABOSS) [New Window]
Link to PDF fact sheet describing the SEABASS system that collects seabed images and sediment samples in coastal regions.
Seafloor image map of the Monterey Bay region: USGS Monterey Bay National Marine Sanctuary Project [New Window]
Monterey Bay sea floor image maps.
Seamless geographic data distribution system [New Window]
Online map system providing downloadable geospatial data, primarily NSDI framework themes (that is, general geographic data such as transportation, boundaries, hydrography, orthoimagery, land cover, and elevation).
Seismic properties of North America and the surrounding ocean basins [New Window]
Presentation of maps of the seismic properties of North America and the surrounding ocean basins compiled from seismic refraction and reflection data, earthquake studies, and surface wave analyses showing crustal thickness and geologic provinces.
Selected Western Region Mineral Resources on-line publications [New Window]
Links to digital publications on minerals and mineral resources research in the western United States.
Selected references on fossils and paleontology [New Window]
Bibliography of books, periodicals, fossil collecting guides, audiovisual aids, videos, filmstrips, charts, and posters which may be borrowed from libraries or purchased if still available.
Sinkholes [New Window]
Explains sinkhole formation and distribution, with special emphasis on their occurrence in Missouri
Sound waves [New Window]
Monthly online newsletter covering coastal and marine science with links listed under sections titled fieldwork, meetings, outreach, and research.
South Florida Ecosystem History Project [New Window]
Project is designed to integrate studies from a number of researchers compiling data from terrestrial, marine, and freshwater ecosystems within south Florida. Links to publications, maps, posters, and data of studies.
Southern California Areal Mapping Project (SCAMP): find geologic maps [New Window]
Download digital geologic databases produced by the Southern California Areal Mapping Project (SCAMP) or view SCAMP work in progress by clicking on 1:100,000-scale, 30x60' quadrangles.
Southern California Mapping Project (SCAMP) [New Window]
Description of the SCAMP project to produce geologic and geophysical maps and reports that describe the geologic setting and geologic history of southern California.
Space Acquired Photography [New Window]
Ordering and descriptive information for National Aeronautics and Space Administration (NASA) imagery acquired by the USGS from Gemini, Apollo, Skylab, International Space Station, Space Shuttle, and Shuttle Large Format Camera missions.
Spectroscopy of rocks and minerals, and principles of spectroscopy [New Window]
Technical review of the principles of spectroscopy and its use in identifying minerals and other materials.
Standardized National Vegetation Classification System [New Window]
Document on the National Vegetation Classification Standard with information on applications, background, development, characteristics, nomenclature standards, relationship to other classifications, and how to do vegetation mapping.
Studies in Long Island Sound: geology, contaminants, and environmental issues [New Window]
Description of Long Island Sound projects and links to research topics, data, publications, photos, and technology on sediment transport, sea floor mapping, contaminant sampling, sediment texture, and environmental issues.
Studies of polluted sediment offshore Los Angeles [New Window]
Overview of studies of marine sediment on the continental shelf south of Los Angeles contaminated with DDT and PCBs from past sewage effluent discharges with links to research on Santa Monica Bay, Los Angeles Shelf and Palos Verdes Peninsula.
Survey Photography [New Window]
Information for ordering from a large diverse group of aerial photos (1939 to the present) from film received from many federal agencies such as Bureau of Indian Affairs, Bureau of Land Management, Army, Navy, National Park Service and others.
Tapestry of time and terrain: union of two maps, geology and topography [New Window]
Colored map compiled by merging geologic and topographic maps of the United States through computer processing and enhancement with links to panoramic movie using QuickTime, descriptions of features, and a game entitled Puzzle of Regions.
The Chesapeake Bay bolide: modern consequences of an ancient cataclysm [New Window]
Presentation that the location of Chesapeake Bay may have been predetermined by a Eocene bolide, an extraterrestrial body, impacting the Earth in the vicinity of the Delmarva Peninsula at high velocity and exploding to create a large crater.
The Great Ice Age [New Window]
Booklet (PDF format) on the Pleistocene glaciations known as the Great Ice Age and the resulting geomorphological, climatic, and environmental changes that occurred on Earth during the period.
The National Map [New Window]
Homepage describing The National Map, which will produce a seamless, continuously maintained set of public domain geographic base information, with links to map viewer, pilot projects, reports, fact sheets, and national atlas.
The National Map: reports [New Window]
Fact sheets and reports on the National Map in HTML format or PDFs.
The National Map: topographic maps for the 21st century [New Window]
Description of the The National Map project intended to provide a seamless, integrated, and continuously maintained set of geographic base information for easily accessible, up-to-date, accurate mapping of the United States.
The U.S. Geological Survey Ocean Bottom Seismometer Facility [New Window]
The Ocean Bottom Seismometer facility provides technical support for a variety of scientific investigations ranging from deep crustal structure to gas hydrate and surface sediments.
The crustal structure of China from deep seismic sounding profiles [New Window]
Summary of results of Deep Seismic Sounding (DSS) profiles in China with links to a sample DSS profile, contour map of China with crustal thickness, crustal columns and maps showing profile locations and seismic data.
The role of climate in estuarine variability [New Window]
Article from American Scientist on study of the San Francisco Bay estuary as a component of the global climate system showing that natural fluctuations might be mistaken for anthropogenic trends affecting waterflow and salinity.
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.
Three-dimensional geologic maps and visualization [New Window]
Techniques of computer-based representations of areal geology to construct three-dimensional geologic maps that retain all the information of traditional geologic maps while providing a more detailed picture of the subsurface.
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. Atlantic East Coast [New Window]
Atlantic East Coast interactive map with GIS datasets and sonar imagery.
U.S. Gulf of Mexico Shoreline Change [New Window]
Interactive map of the Gulf of Mexico coast reflecting shoreline changes.
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 East-coast sediment analysis: analysis, procedures, database and georeferenced displays [New Window]
Grain-size analysis of marine sediments of the U.S. eastern coast with sampling and lab methods, surficial sediment database in three formats (Excel, Dbase IV, ASCII), and use of geographic mapping tools for visualizing sediment data layers.
USGS Geography Products [New Window]
USGS mapping sciences page containing links describing cartographic and geographic products and programs. The information products are available in printed and digital formats.
USGS guide to federal environmental laws and regulations [New Window]
Guide to major U.S. environmental statutes and corresponding regulations on air quality, fish and wildlife conservation, cultural and historic resources, solid and hazardous substances, public lands, farmlands, and water resources.
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.
Unconsolidated aquifers of upstate New York [New Window]
Information on aquifers in upstate New York which consist of unconsolidated deposits of sand and gravel that occupy major river and stream valleys or lake plains. Links to aquifer maps at scales 1:24,000 or 1:250,000 and cooperative publications.
Understanding our planet through chemistry [New Window]
Site with a series of articles showing how chemists and geologists use analytical chemistry to determine the age of the Earth, determine Earth's history, predict volcanic eruptions, observe long-term atmospheric change and study pollution.
United Sates Antarctic Resource Center (USARC) [New Window]
Description of the Antarctic Resource Center at the USGS National Center in Reston with information on its archives of aerial photographs, maps and charts, satellite imagery, geodetic control data, image collection and publications.
United States Antarctic Resource Center [New Window]
Description of the Antarctic Resources Center and links to its workshops and archives of Antarctic maps, charts, satellite images, and photographs produced by the member nations of the Scientific Committee on Antarctic Research (SCAR).
Unsaturated-Zone Flow Program [New Window]
Overview of research to measure, predict, and understand the flow of water through soil and rock between the land surface and the water table with links to field sites, laboratory methods, theoretical developments, publications, and personnel.
View USGS maps and aerial photo images online [New Window]
Links to selected partner sites where USGS maps and aerial photo images may be viewed with a web browser.
Visual Glossary - asthenosphere [New Window]
The asthenosphere is the ductile part of the earth just below the lithosphere, including the lower mantle. The asthenosphere is about 180 km thick.
Volcanoes [New Window]
This booklet presents a generalized summary of the nature, workings, publications, and hazards of the common types of volcanoes around the world, along with a brief introduction to the techniques of volcano monitoring and research.
Washington aeromagnetic maps and data [New Window]
Colored geomagnetic and gravity maps and related data and graphical plots for the state of Washington.
Water resources of Alaska [New Window]
USGS water resources home page for Alaska with links to detailed hydrologic studies and real-time and historic data on streamflow, ground and surface water, glaciers, and water quality plus research activities, publications, and contacts.
Water resources of Colorado [New Window]
USGS water resources home page for Colorado with links to detailed hydrologic studies and real-time and long-term data on streamflow, snowpack, sediment, ground and surface water, and water quality, plus publications, news, and drought watch.
Water resources of Maine [New Window]
USGS water home page for Maine with detailed hydrologic studies and real-time and long-term data for streamflow, ground and surface water, snow, and water quality plus drought watch, press releases, projects, and contacts.
Water resources of Washington State - projects/studies [New Window]
List of links to USGS research and studies on the water resources of Washington, which can be searched by subject, basin and county.
Water science for schools: glaciers and icecaps, storehouses of fresh water [New Window]
Brief information for students on glaciers and icecaps from Water Science for Schools with link to more glacial information by the National Snow and Ice Data Center (NSIDC).
Watershed processes and modeling [New Window]
Links to published materials produced by the Watershed Processes and Modeling Project on watershed model TOPMODEL, compilation of STATSGO soils data, climate change, landscape heterogeneity in ecoregions, and other links.
West-central Florida erosion study [New Window]
West central Florida erosion interactive map with GIS datasets to download including geologic interpretative layers, samples, bathymetry, and imagery.
Western Region Coastal and Marine Geology Program [New Window]
Site for Western Region Coastal and Marine Geology Program conducting scientific research in the coastal and offshore areas of California, Oregon, Washington, Alaska, Hawaii, and other U.S. Pacific Islands.
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.
Whales and walrus: tillers of the seafloor [New Window]
Report on sea floor marks in the Northeast Bering Sea and Chukchi Sea that were identified as pits and furrows caused by whales and walruses in the process of feeding on bottom crustaceans.
What is an Ocean Bottom Seismometer? [New Window]
Description and uses of the Ocean Bottom Seismometer; a self contained data-acquisition system which free falls to the ocean floor and records seismic data generated by airguns and earthquakes.
Woods Hole Coastal and Marine Geology Field Center [New Window]
Site with links to projects of the field center of the Woods Hole Coastal Marine Geology Program on underwater areas between shorelines and the deep ocean, off the U.S. East Coast, the Gulf of Mexico, and in parts of the Caribbean and Great Lakes.
World Data Center for Remotely Sensed Land Data, Sioux Falls [New Window]
Description of the World Data Center for Remotely Sensed Land Data (WDC/RSLD), the world's largest collection of space and aircraft imagery. Includes aerial photography, DOQs, Landsat satellite imagery and photography and AVHRR imagery.
usSEABED (marine sediment and rock distribution) [New Window]
Data on sediment and rock distributions in the waters off the United States, shown using an internet map service with links to downloadable data files


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