Science Topics term usage 2009-05-20

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.)

1788	earthquakes
1029	earthquake occurrences
213	volcanoes
126	maps and atlases
106	real-time monitoring and reporting
52	earthquake probabilities
50	USGS map servers
48	topographic maps
45	mineral resources
45	energy resources
43	climate change
39	geospatial analysis
34	floods
34	avian influenza
33	surface water (non-marine)
32	invasive species
32	contamination and pollution
30	droughts
30	California
29	seismology
28	ground water
25	water quality
24	geologic maps
23	remote sensing
20	human impacts
16	volcanic activity
14	health and disease
14	Los Angeles
13	geochemistry
13	earth structure
13	fires
12	natural gas resources
12	desert ecosystems
11	environmental health (human)
11	river systems
11	tectonic processes
11	acid deposition
10	hazards
10	oil resources
10	animals

Science Topics term usage Wednesday, 2009-05-20