Science Topics term usage 2009-01-08

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.)

1207	earthquakes
523	earthquake occurrences
240	volcanoes
216	floods
154	maps and atlases
122	real-time monitoring and reporting
64	topographic maps
61	climate change
53	USGS map servers
47	mineral resources
45	surface water (non-marine)
41	ground water
38	avian influenza
36	water quality
36	energy resources
35	contamination and pollution
33	invasive species
32	earthquake probabilities
31	seismology
30	tectonic processes
30	droughts
29	geologic maps
28	geospatial analysis
28	remote sensing
25	acid deposition
24	environmental health (human)
22	animals
21	river systems
21	fires
19	earth structure
14	health and disease
14	global warming
13	hydrology
13	desert ecosystems
12	storm surge
12	erosion
12	ground-water flow
12	aerial photography
11	volcanic activity
11	topics

Science Topics term usage Thursday, 2009-01-08