Science Topics term usage 2009-01-23

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.)

763	earthquakes
331	earthquake occurrences
170	volcanoes
123	maps and atlases
75	climate change
63	real-time monitoring and reporting
62	USGS map servers
61	ground water
55	topographic maps
54	floods
53	energy resources
52	mineral resources
48	water quality
38	surface water (non-marine)
38	contamination and pollution
37	remote sensing
35	geospatial analysis
33	invasive species
30	droughts
28	avian influenza
25	earthquake probabilities
22	geologic maps
21	seismology
16	endangered species
15	fires
15	ground-water quality
14	earth structure
13	acid deposition
12	social sciences
12	ground-water flow
12	environmental health (human)
12	animals
12	desert ecosystems
11	California
11	hydrogeology
11	water properties
11	oil resources
11	erosion
11	global change
11	coal resources

Science Topics term usage Friday, 2009-01-23