Science Topics term usage 2009-07-14

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

(Table shows only the 40 most frequently chosen terms.)

812	earthquakes
421	earthquake occurrences
180	maps and atlases
126	volcanoes
109	real-time monitoring and reporting
67	energy resources
64	mineral resources
63	map interfaces
59	topographic maps
55	remote sensing
53	ground water
52	water quality
49	contamination and pollution
48	climate change
42	surface water (non-marine)
40	geospatial analysis
38	floods
34	droughts
31	invasive species
28	environmental health (human)
27	avian influenza
25	geologic maps
18	earthquake probabilities
17	fires
17	California
17	seismology
12	oil resources
12	land use and land cover
11	tectonic processes
10	river systems
10	geothermal resources
10	erosion
10	geographic information systems (GIS)
10	surface water quality
9	volcanic activity
9	global warming
8	desert ecosystems
8	ground-water flow
8	hydrology
8	cartography

Science Topics term usage Tuesday, 2009-07-14