Science Topics term usage 2009-05-08

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.)

729	earthquakes
403	earthquake occurrences
190	volcanoes
108	real-time monitoring and reporting
106	maps and atlases
52	floods
51	ground water
50	USGS map servers
46	surface water (non-marine)
45	energy resources
40	climate change
40	mineral resources
38	water quality
37	remote sensing
36	contamination and pollution
33	topographic maps
32	fires
31	droughts
28	geospatial analysis
27	avian influenza
26	invasive species
22	earthquake probabilities
20	geologic maps
20	seismology
18	environmental health (human)
13	human impacts
12	population and community ecology
12	California
12	land use and land cover
12	health and disease
12	oil resources
12	acid deposition
11	surface water quality
11	natural gas resources
11	soil resources
10	hydrology
9	coal resources
9	desert ecosystems
9	USGS budget
8	aerial photography

Science Topics term usage Friday, 2009-05-08