Science Topics term usage 2009-04-02

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.)

518	earthquakes
332	volcanoes
223	earthquake occurrences
118	maps and atlases
112	real-time monitoring and reporting
82	floods
65	ground water
65	energy resources
60	water quality
57	mineral resources
51	USGS map servers
45	surface water (non-marine)
45	climate change
44	invasive species
42	remote sensing
39	topographic maps
39	contamination and pollution
34	geospatial analysis
26	avian influenza
26	droughts
23	fires
22	geologic maps
20	environmental health (human)
19	earthquake probabilities
18	acid deposition
17	oil resources
16	ground-water quality
15	river systems
14	ground-water flow
14	volcanic activity
13	animals
12	global warming
12	tsunamis
12	erosion
12	human impacts
12	health and disease
11	endangered species
11	ocean characteristics
10	water resources
10	seismology

Science Topics term usage Thursday, 2009-04-02