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A:
Access USGS - San Francisco Bay and Delta - 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 [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Alaska Volcano Observatory (AVO) - Homepage for Alaska Volcano Observatory (AVO) with offices in Anchorage and Fairbanks monitors and studies Alaskas hazardous volcanoes. Links to featured news, updates, publications and products, and a volcano atlas for Alaska [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Albuquerque Seismological Laboratory - The USGS Seismological Laboratory in Albuquerque installs and maintains a world network of seismograph stations, collects the seismic data, and evaluates seismic instruments. Site includes links to ASL publications, earthquake maps and seismic data [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Applied Geosciences - Expertise includes regulatory site characterization and sampling services, flow and transport computer modeling, and analyses of the effects of contaminant releases on human health and the environment [U.S. Department of Energy (DOE), Idaho National Laboratory (INL)]

Ask an Earth Scientist - Answers specific questions related to volcanoes, earthquakes and seismology, natural hazards, environment and hydrology, sediments and sedimentary rocks, igneous rocks and minerals [National Aeronautics and Space Administration (NASA)]

Ask-A-Geologist - Site to submit a question to Ask-A-Geologist for answers to geological questions via email [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

C:
Cascades Volcano Observatory (CVO) - Portal to information provided by the Cascades Volcano Observatory in Vancouver, WA with links to reports and activity in the Cascade Range and other volcanoes and multiple links to general information on volcanology, reports, research, and maps [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Center for Nuclear Waste Regulatory Analyses (CNWRA) - Has a unique and powerful range of technical expertise for addressing complex earth sciences and engineering problems within a multidisciplinary, integrated framework [U.S. Nuclear Regulatory Commission (NRC)]

Climate and Land Use Change - Scientific research, monitoring, remote sensing, modeling, synthesis, and forecasting to address the effects of climate and land use change on the Nation’s resources. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Coastal and Marine Geology Program interactive map server - Interactive map server for viewing and creating maps using available coastal and marine geology data sets for offshore and coastal U.S. and the Gulf of Mexico with links to available data and metadata that can be downloaded. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Coastal and Marine Geology Program]

Crustal Imaging and Characterization Team - Crustal imaging and characterization home with links to projects on earth science technologies including geophysical, geochemical, and isotope studies, online publications and data, and newsletter: Minerals News. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Crustal Imaging and Characterization Team]

D:
Dinosaurs Along the Silk Road - Webcast of a presentation at the Library of Congress by James Clark, Ph.D.., George Washington University, Dr. Clark was a co-leader of expeditions that discovered the bones of small dinosaurs mired in mud, stacked one on top of another, in the northern part of Xinjiang, China, near the ancient Silk Road. [U.S. Library of Congress (LOC)]

E:
Earth - Explores the Earth's air, land and seas to learn more about our home planet and understand how other planetary systems may work [National Aeronautics and Space Administration (NASA), Jet Propulsion Laboratory (JPL)]

Earth Day: Selected Resources - Science Reference Guide - Finding guide from the Library of Congress, Science Reference Section [U.S. Library of Congress (LOC)]

Earthquake: Did you feel it? - Project to collect information about ground shaking associated with significant earthquakes. Provides a questionnaire to fill out what you felt following an earthquake in the United States or in other countries [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Earthquake Hazards Program]

Earth’s Water Cycle in a Changing Climate - Webcast of a presentation at the Library of Congress by Peter Hildebrand, chief of the Hydrospheric and Biospheric Sciences Laboratory at NASA Goddard Space Flight Center. [U.S. Library of Congress (LOC), Science, Technology and Business Division]

F:
FEWS NET Africa Data Portal - The FEWS NET Africa Data Portal provides access to spatial data, satellite imagery, and other data and graphic products in support of the Famine Early Warning Systems Network (FEWS NET) project. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Famine Early Warning System (FEWS) NET Data Portal - The USGS FEWS NET Data Portal provides access to geo-spatial data, satellite image products, and derived data products in support of FEWS NET monitoring needs throughout the world. [U.S. Agency for International Development (USAID); U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Early Warning and Environmental Monitoring Program]

Fossil Energy Technologies - Conducts innovative, science-based research and development of new fossil energy technologies [U.S. Department of Energy (DOE), Idaho National Laboratory (INL)]

G:
Geologic hazards: landslides - Links to information on the geologic hazard landslides including landslide program, landslide events, people and projects, landslide mitigation program, program publications and searchable bibliography. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Geology - Homepage about the Geology Discipline with links to whats new, publications, real-time hazards information, GEODE - Geologic Data Explorer, partnerships, fellowship program, and major science programs. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Geology in the Eastern Region - Homepage with links to major research programs and teams: Mineral Resources, Minerals Information, Energy Resources, Earth Surface Processes, and Coastal and Marine Geology Field Centers [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Geomagnetism - Overview of geomagnetism with National Geomagnetic Information Centers activities, computation methods including shareware software Geomagix, publications, available CD-ROMs of magnetic information, plus data, charts, magnetic models, and data plots. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Geomechanics Laboratory - A user facility that enables the measurement of rock properties under a wide range of simulated service conditions up to very high pressures and complex load paths [U.S. Department of Energy (DOE), Sandia National Laboratories (SNL)]

Geoscience - Performs recognized world-class earth and atmospheric sciences research and development to support Sandia's national security missions. [U.S. Department of Energy (DOE), Sandia National Laboratories (SNL)]

Geosciences Research - Improves the understanding of chemical, biological, and geophysical processes in the subsurface, and how these processes affect water and contaminant transport [U.S. Department of Energy (DOE), Idaho National Laboratory (INL)]

Geospatial Platform - Shared and trusted geospatial data, services, and applications for use by government agencies, their partners and the public. [Multiple agencies involved, Federal Geographic Data Committee]

Global Volcanism Program (GVP) - Stay current on recent activity [Smithsonian Institution]

Gulf of Mexico Integrated Science - Website of the Gulf of Mexico Integrated Science program to understand the framework and processes of the Gulf of Mexico using Tampa Bay as a pilot study. Links to publications, digital library, water chemistry maps, epipytes,and field trips. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

H:
Hawaiian Volcano Observatory (HVO) - Latest news with links to information on Kilauea, Mauna Loa, and other volcanoes, earthquakes, volcanic hazards, photo archive, and general information about the center [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

L:
Laboratory for Satellite Altimetry (LSA) - Specializes in the analysis of satellite altimeter data related to problems in physical oceanography and marine geophysics [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), Office of Research and Applications]

Lake Level Viewer - This tool helps users visualize lake level changes that range from six feet above to six feet below historical long-term average water levels in the Great Lakes, along with potential shoreline and coastal impacts. [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]

Landsat Image Mosaic of Antarctica (LIMA) - The first-ever true-color high-resolution satellite view of the Antarctic continent enabling everyone to see Antarctica as it appears in real life [National Aeronautics and Space Administration (NASA)]

Landslides Hazards Program - Information, research, response to emergencies and disasters, scientific reports and other products for a broadly based user community including geologists and engineers in government, academia and private practice, planners and decision makers from governmental entities at all levels, and the general public. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Landslides Hazards Program]

M:
Mapping Water Use from Space - Webcast - Webcast of a talk at the Library of Congress. Martha Anderson, PhD., talks about using images from the Landsat satellite program to monitor water use and drought on U.S. farms. It is used to measure evapotranspiration, the total amount of water used in the process of growing crops. [U.S. Library of Congress (LOC)]

Marine Geology and Geophysics - Data from the ocean floor [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Geophysical Data Center (NGDC)]

Mineral Resources On-Line Spatial Data - Website for geospatial data on mineral resources of the U.S. or the world that users can locate by geographic area, view, and download [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Minerals Resources Program - Homepage of the Mineral Resources Program that provides current, impartial information on the occurrence, quality, quantity, and availability of mineral resources with links to projects, publications, spatial data, teams, issues, and news. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

N:
NASA's Desert Rats (Desert Research and Technology Studies) - Webcast - NASA's Desert Rats (Desert Research and Technology Studies) - Webcast of a presentation at the Library of Congress by Jacob Bleacher, PhD. [U.S. Library of Congress (LOC)]

National Coal Resources Data System - US Coal Resource Database (USGCOAL) - Searchable database for locating information on coal resources by area, coalfield, coalbed, rank, quadrangle, source, years, or characteristics of thickness, overburden, and reliability. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

National Earthquake Information Center (NEIC); World Data Center for Seismology, Denver - Information on world earthquake activity with links to facts and lists on large earthquakes, earthquake e-mail notification, hazards and preparedness, educational links, news and highlights and other seismic information [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

National Geologic Map Database Geologic Names Lexicon (GEOLEX) - Search tool for locating lithologic and geochronologic unit names for geologic studies [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

National High Altitude Photography (NHAP) - An Interagency Project to acquire cloud-free aerial photographs at an altitude of 40,000 feet above mean terrain elevation. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), National High Altitude Photography (NHAP)]

National Map - Resource for topographic information on the U.S. including orthoimagery (aerial photographs), elevation, geographic names, hydrography, boundaries, transportation, structures, and land cover. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), National Geospatial Program]

Natural Disasters: A Guide to Selected Resources - Science Reference Guide - A finding guide from the Library of Congress, Science Reference Services [U.S. Library of Congress (LOC)]

O:
Observing the Living Oceans from Space. Webcast - A Webcast of a presentation by Gene Feldman, NASA Goddard Space Flight Center. [U.S. Library of Congress (LOC)]

Ocean Drilling Program (ODP) - Conducts basic research into the history of the ocean basins and the overall nature of the crust beneath the ocean floor [Multiple agencies involved]

P:
Paleoclimatology Data - Climate variability and climate change data, research, and information [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Climatic Data Center]

Projects in Afghanistan - Describes the U.S. Geological Survey's research in Afghanistan including information on oil and natural gas resources, minerals, water, and geological hazards. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

R:
RIDGE Program - Fosters interdisciplinary scientific study of mid-ocean ridge processes [U.S. National Science Foundation (NSF)]

Record Group 23: Records of the Coast and Geodetic Survey, 1807 - 1967 - National Archives' Archival Research Catalog description for Record Group 23: Records of the Coast and Geodetic Survey, 1807 - 1967 [U.S. National Archives and Records Administration (NARA)]

Record Group 57: Records of the U.S. Geological Survey, 1839 - 2002 - National Archives' Archival Research Catalog description for Record Group 57: Records of the U.S. Geological Survey, 1839 - 2002 [U.S. National Archives and Records Administration (NARA)]

S:
San Francisco Bay Area Regional Database (BARD) - Homepage for downloading or viewing Digital Elevation Models (DEMs), Digital Line Graphs (DLGs), Digtial Raster Graphics (DRGs), and Digital Orthophotos images with standards, NSDI description, and metadata [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Science and Technology at Lawrence Livermore National Laboratory - Provides links to information about research in advanced defense technologies, energy, environment, biosciences, and basic sciences [U.S. Department of Energy (DOE), Lawrence Livermore National Laboratory (LLNL)]

Socioeconomic Data and Applications Center (SEDAC) - [National Aeronautics and Space Administration (NASA)]

Spectroscopy Laboratory - Links to Spectroscopy Lab projects to identify and map materials through spectroscopic remote sensing (imaging spectroscopy, hyperspectral imaging, imaging spectrometry, ultraspectral imaging, etc.) on the earth and in space. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

U:
U.S. Geological Survey (USGS), Department of the Interior - Homepage, serving as portal to all USGS information with search options, USGS in the news, most frequently requested topics, and access to major categories of USGS information [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

U.S. Geological Survey Landcover Institute - 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 [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS), Coastal and Marine Geology Program]

U.S. Geological Survey Library Program - Homepage for the USGS library system with links to the four libraries of the system, online catalog, forms to request information, photo archive, new acquisitions lists, and links to other useful sources of information. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

US Geological Survey Core Science Systems - Includes the following programs: Biological Informatics Program, National Geospatial Program, Core Science Informatics, Libraries, National Cooperative Geologic Mapping Program, and National Geological and Geophysical Data Preservation Program. [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

USGS Recreation Site - Gateway to useful USGS websites for recreation in nature watching and exploring, boating, camping, climbing, fishing, hiking,biking, and hunting, with links to maps, real-time streamflow, geology, photos, and plant and animal information [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

V:
Visible Earth - A searchable directory of images, visualizations, and animations to the Earth [National Aeronautics and Space Administration (NASA)]

Volcano Hazards Program - Homepage for with feature stories, and links to worldwide volcano updates, volcanic hazards, reducing volcanic risk, USGS international programs, and resources such as educators' page, videos, and online reports [U.S. Department of the Interior (DOI), U.S. Geological Survey (USGS)]

Volcanoes –Near, Far and Really Far Away. Webcast - A Webcast of a presentation given by Ashley Davies, Asteroids, Comets and Satellites Group, Jet Propulsion Laboratory, NASA. [U.S. Library of Congress (LOC)]

W:
Washington Volcanic Ash Advisory Products - Active volcanic activity and ash data [U.S. Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA)]