Science Topics term usage 2009-02-17

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.)

577	earthquakes
283	volcanoes
233	earthquake occurrences
122	maps and atlases
71	climate change
70	real-time monitoring and reporting
58	USGS map servers
56	ground water
56	energy resources
55	floods
53	topographic maps
45	water quality
44	mineral resources
37	geospatial analysis
35	surface water (non-marine)
34	contamination and pollution
31	remote sensing
30	invasive species
29	avian influenza
28	droughts
27	environmental health (human)
23	fires
23	geologic maps
19	acid deposition
19	earthquake probabilities
19	human impacts
18	oil resources
17	seismology
17	river systems
15	ground-water quality
13	earth structure
12	erosion
11	geologic processes
11	social sciences
10	tsunamis
10	hazards
10	health and disease
9	geochemistry
9	animals
9	freshwater ecosystems

Science Topics term usage Tuesday, 2009-02-17