Science Topics term usage 2009-05-17

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.)

387	earthquakes
189	earthquake occurrences
117	volcanoes
62	maps and atlases
54	real-time monitoring and reporting
24	USGS map servers
24	surface water (non-marine)
24	mineral resources
22	topographic maps
21	climate change
19	floods
17	ground water
16	water quality
15	human impacts
15	remote sensing
15	energy resources
14	geospatial analysis
13	invasive species
11	river systems
11	avian influenza
11	earthquake probabilities
10	environmental health (human)
10	contamination and pollution
10	fires
8	geologic maps
7	desert ecosystems
7	droughts
6	oil resources
6	earth structure
6	volcanic features
6	water supply and demand
6	health and disease
6	ground-water flow
5	tectonic processes
5	life sciences
5	seismology
5	core (earth)
4	California
4	soil resources
4	USGS budget

Science Topics term usage Sunday, 2009-05-17