Science Topics term usage 2009-01-21

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.)

729	earthquakes
253	earthquake occurrences
196	volcanoes
162	maps and atlases
91	USGS map servers
90	real-time monitoring and reporting
66	topographic maps
61	climate change
61	ground water
52	contamination and pollution
51	water quality
51	mineral resources
49	remote sensing
48	avian influenza
47	surface water (non-marine)
45	energy resources
43	floods
43	geospatial analysis
43	droughts
30	geologic maps
30	invasive species
29	environmental health (human)
27	fires
23	animals
20	earthquake probabilities
20	life sciences
19	earth structure
19	health and disease
19	human impacts
17	ocean characteristics
16	river systems
15	endangered species
15	acid deposition
15	tectonic processes
14	erosion
14	oil resources
13	earth characteristics
13	topography
13	land use and land cover
13	water resources

Science Topics term usage Wednesday, 2009-01-21