Science Topics term usage 2009-03-02

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.)

519	earthquakes
242	volcanoes
203	earthquake occurrences
133	maps and atlases
80	real-time monitoring and reporting
74	energy resources
70	USGS map servers
70	mineral resources
62	climate change
59	contamination and pollution
58	floods
56	water quality
50	ground water
48	geospatial analysis
44	topographic maps
41	droughts
41	avian influenza
40	surface water (non-marine)
38	remote sensing
35	invasive species
29	oil resources
26	environmental health (human)
25	geologic maps
23	fires
21	health and disease
18	erosion
18	acid deposition
17	tectonic processes
17	ground-water quality
16	earth structure
15	global warming
15	earthquake probabilities
15	human impacts
14	river systems
14	ecosystems
13	seismology
12	marine geology
12	soil resources
12	land use and land cover
12	global change

Science Topics term usage Monday, 2009-03-02