Center for International Earth Science Information Network
CIESIN’s mission is to provide access to and enhance the use of information worldwide, advancing understanding of human interactions in the environment and serving the needs of science and public a...
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China Historical Geographic Information System
221 BCE - 1911 CE
The China Historical Geographic Information System (CHGIS) project was launched in January 2001 to establish a database of populated places and historical administrative units for the period of Chi...
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David Rumsey Historical Map Collection
1800's and 1900's
The David Rumsey Historical Map Collection focuses on rare 18th and 19th century North and South America cartographic history materials. Historic maps of the World, Europe, Asia and Africa are also...
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Digital Atlas of Roman and Medieval Civilizations
0 - 1500 C.E.
The Digital Atlas of Roman and Medieval Civilization (DARMC) makes freely available on the internet the best available materials for a Geographic Information Systems (GIS) approach to mapping and s...
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1492 to 1969
Empire Online spans five centuries, charting the rise and fall of empires around the world. It provides exploration of colonial history, politics, culture, and society. Key features include: tens o...
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GeoGratis is a portal provided by the Earth Sciences Sector (ESS) of Natural Resources Canada (NRCan) which provides geospatial data at no cost and without restrictions via your Web browser. The da...
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GeoScience Australia's spatial information activities focus on providing key spatial information of Australia with an emphasis on response to rapid and slow onset hazards, the detection of change, ...
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LandScan Global Population Database
2000 - 2012
LandScan is a global population database that shows geographical distribution of population at one-kilometer resolution over an average 24 hour period. The LandScan algorithm uses spatial data and ...
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National Map (United States)
Use The National Map Viewer and Download Platform to visualize, inspect, and download the most current topographic base map data and products for free. Managed by the United States Geological Surve...
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Natural Resources Conservation Service Geospatial Data Gateway
The Geospatial Data Gateway is a service made available through a close partnership between the three Service Center Agencies (SCA); Natural Resources Conservation Service (NRCS), Farm Service Agen...
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Perry-Castañeda Library Online Map Collection - University of Texas at Austin
1900 - present
The Perry Casteñeda Library Map Collection provides online access to digital versions of all Central Intelligence Agency (CIA) reference and thematic maps. Army Map Service (AMS) topographic map se...
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1992 - present
Since 2004, WisconsinView has made aerial photography and satellite imagery of Wisconsin available to the public for free over the web. As part of the AmericaView consortium, WisconsinView supports...
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Encyclopedia of Quaternary Science
This encyclopedia includes 360 articles that cover the field of quaternary sciences. Quaternary science is an inter-disciplinary field of study focusing on the Quaternary period, which encompasses ...
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ESRI GIS Bibliography
1969 - present
The ESRI GIS Bibliography covers the literature of geographic information systems, science, and technology from the origins of GIS to the present. It references thousands of sources, including jour...
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FAO Country Profiles and Mapping Information System
1950 - present
The Food and Agriculture Organization for the United Nations and its 187 members highlight information as one of the priority areas in fighting hunger and achieving food security. The FAO Country P...
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1669 - present (North America coverage), 1933 - present (Worldwide coverage)
GEOREF, produced by the American Geosciences Institute, indexes the earth sciences literature of the world. It contains more than 3.5 million references to literature covering North America since 1...
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International Encyclopedia of the Social & Behavioral Sciences
The International Encyclopedia of the Social & Behavioral Sciences is a fully revised and updated second edition of the 2001 publication. It includes nearly 4000 articles curated by 71 section edit...
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JSTOR: The Scholarly Journal Archive
JSTOR is a full-text journal database which provides access to more than 1,200 titles in the fields of African-American studies, anthropology, architecture, Asian studies, biological sciences, bota...
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Meteorological & Geoastrophysical Abstracts
July 1974 - present
The MGA database covers the fields of meteorology, climatology, physical oceanography, hydrology, glaciology, and atmospheric chemistry and physics. The database provides abstracts from journal art...
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NOAA National Centers for Environmental Information (NCEI)
Within NCEI, there is access to various data holdings from the Center for Weather and Climate, Coasts, Oceans, and Geophysics. Land-based, marine, model, radar, weather balloon, satellite, paleocli...
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Scopus is a multidisciplinary abstract and citation database that covers science, technology, medicine, social sciences, and arts and humanities.
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Water Resources Abstracts
1967 - present
Water Resources Abstracts is now part of the Agricultural and Environmental Science Database. This database provides summaries of the world's technical and scientific literature on water-related t...
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Web of Science
Arts & Humanities, 1975 to present; Science, 1900 to present; 1965 - for Science; Social Sciences, 1900 to present; Conferences, 1990 to present
The Web of Science is a combination of three databases: Science Citation Index Expanded, Social Sciences Citation Index, Arts & Humanities Citation Index and Conference Proceedings Citation Index (...
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