National Institute of Standards and Technology (U.S.) 38 United States National Bureau of Standards 25 U.S. Fish and Wildlife Service 20 United States National Weather Service 16 Geological Survey (U.S.) 14 United States Weather Bureau 11 United States National Oceanic and Atmospheric Administration 9 Cunningham, Diane 8 GLOBE Program (U.S.) 8 National Institute of Standards and Technology (U.S.) Research Information Center 8 Goddard Space Flight Center 7 National Measurement Laboratory (U.S.) Office of Physical Measurement Services 7 Environmental Research Laboratories (U.S.) 6 Gevantman, L. H 6 Lorenz, J (John) 6 United States Office of Federal Coordinator for Meteorological Services and Supporting Research 6 Center for Food Safety and Applied Nutrition (U.S.) 5 Law Enforcement Standards Laboratory 5 Marsden, Charles P 5 National Institute of Law Enforcement and Criminal Justice 5 United States Department of Commerce 5 United States Environmental Protection Agency. Office of Air and Radiation 5 United States National Aeronautics and Space Administration 5 United States National Marine Fisheries Service 5 Hyer, Charles W 4 Jet Propulsion Laboratory (U.S.) 4 National Science Foundation (U.S.) 4 Northern Forestry Centre (Canada) 4 Space Environment Services Center (U.S.) 4 U.S. Coast and Geodetic Survey 4 ver todos ...

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United States 188 Maryland 6 North America 5 Sun 5 Alaska 3 Arizona 3 Canada 3 Soviet Union 3 États-Unis 3 Atlantic Coast 2 Atlantic Coast (U.S.) 2 Atlantic Ocean 2 Batavia 2 Earth (Planet) 2 European Union countries 2 États-Unis 2 Gaithersburg 2 Great Lakes (North America) 2 Halley's comet 2 Illinois 2 Indiana 2 Manitoba 2 Nevada 2 Pacific Coast 2 Solar system 2 Alberta 1 America 1 Amérique du Nord 1 Arctic Ocean 1 Atlantic Coast (America) 1 ver todos ...