A list of sites offering undersea gis data for the world
UNITED STATES (INCLUSIVE)
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1KM and 20KM tiles. Original Images are held on the M:\data\FTPOCUL\OGDE\ folder and on external hard drive #1. MDL former index can be found here: http://www.library.utoronto.ca/maplib/AP/swoop/
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from their web page: "The National Historical Geographic Information System (NHGIS) is a project to create and freely disseminate a database incorporating all available aggregate census information for the United States between 1790 and 2015." Free… Read more.
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What is CensusMapper? CensusMapper is a geographic information system designed to make maps and tabular reports of historic U.S. Census and related data. Unlike GIS software, CensusMapper has pre-loaded quality assured/quality controlled data… Read more.
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About This DVD: After pioneering the first airborne magnetic survey in 1945, the U.S. Geological Survey (USGS) has collected piecemeal aeromagnetic data for most of the U.S., including offshore areas on both coasts. The U.S. Geological Survey's… Read more.
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OMNI Gazetteer is a guide to nearly 1,500,000 populated places, locations and geographic features of the fifty states, Puerto Rico and U.S. Territories.
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New bathymetry of Lake Michigan has been compiled as a component of a NOAA project to rescue Great Lakes lake floor geological and geophysical data and make it more accessible. This bathymetry was compiled at a scale of 1:250,000, with a contour… Read more.
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The new bathymetry of Lake Ontario bathymetry was a collaborative effort between scientists at the NOAA National Geophysical Data Center (NGDC), the NOAA Great Lakes Environmental Research Laboratory (GLERL), the Canadian Hydrographic Service, and… Read more.