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NASA's Global Change Master Directory - http://gcmd.gsfc.nasa.gov/
A comprehensive directory of information about Earth science data, including a broad coverage of the oceans, atmosphere, hydrosphere, solid earth, biosphere and human dimensions of global change. |
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Iowa Geological Survey Bureau, USA - http://www.igsb.uiowa.edu/
Website of the Geological Survey Bureau of the Iowa Department of Natural Resources, including a Geologic Sample Database (GEOSAM)with geologic information for 35,000 locations in Iowa. |
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Internet Resources for Physical Geography - http://www.uwsp.edu/geo/internet/physical_geog_resources.html
Extensive list of links to sites pertaining to various subdisciplines of Physical Geography. |
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The Six Essential Elements of Geography - http://www.ncge.org/publications/tutorial/overview/6.html
What makes geography? |
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Physical Geography sites on Internet - http://geography.about.com/education/geography/library/weekly/topicsub7.htm
Index of articles about Daylight Saving Time, the hydrologic cycle, El Nino, rivers, seasons, ice ages, and more topics in Physical Geography |