Science Topics term usage 2008-11-21

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.)

646	earthquakes
272	earthquake occurrences
148	volcanoes
109	maps and atlases
61	real-time monitoring and reporting
57	climate change
50	USGS map servers
47	water quality
46	mineral resources
45	energy resources
41	floods
33	fires
32	contamination and pollution
31	geospatial analysis
31	ground water
28	remote sensing
27	droughts
24	surface water (non-marine)
23	avian influenza
21	surface water quality
19	invasive species
18	seismology
16	earthquake probabilities
15	ecosystems
14	acid deposition
13	environmental health (human)
12	human impacts
12	endangered species
12	land use and land cover
12	tectonic processes
11	erosion
10	oil resources
10	hazards
10	hydrology
10	water supply and demand
9	soil resources
9	geologic history
9	desert ecosystems
9	health and disease
8	precipitation (atmospheric)

Science Topics term usage Friday, 2008-11-21