Science Topics term usage 2009-01-07

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.)

921	earthquakes
356	earthquake occurrences
279	volcanoes
179	floods
135	maps and atlases
114	real-time monitoring and reporting
71	USGS map servers
58	mineral resources
51	ground water
49	water quality
49	climate change
46	energy resources
44	topographic maps
42	contamination and pollution
42	avian influenza
38	surface water (non-marine)
36	remote sensing
35	geospatial analysis
31	tectonic processes
30	droughts
29	volcanic activity
28	seismology
26	invasive species
24	earthquake probabilities
21	geologic maps
21	fires
19	acid deposition
17	human impacts
17	geologic processes
16	health and disease
14	river systems
14	environmental health (human)
13	desert ecosystems
13	ground-water quality
12	global change
12	erosion
12	earth structure
12	hydrology
11	animals
11	topics

Science Topics term usage Wednesday, 2009-01-07