Science Topics term usage 2009-05-06

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.)

567	earthquakes
251	earthquake occurrences
175	volcanoes
135	real-time monitoring and reporting
112	maps and atlases
64	earthquake probabilities
64	floods
60	climate change
58	water quality
58	surface water (non-marine)
54	USGS map servers
49	contamination and pollution
49	mineral resources
48	ground water
45	energy resources
42	topographic maps
39	remote sensing
39	droughts
37	avian influenza
36	geospatial analysis
35	geologic maps
24	health and disease
22	environmental health (human)
21	invasive species
21	fires
20	river systems
17	human impacts
17	seismology
15	acid deposition
13	surface water quality
13	water resources
13	tsunamis
13	hydrology
12	oil resources
12	global warming
11	tectonic processes
11	desert ecosystems
11	hazards
11	earth structure
10	land use and land cover

Science Topics term usage Wednesday, 2009-05-06