Science Topics term usage 2011-09-22

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.)

830	earthquakes
326	earthquake occurrences
178	volcanoes
78	real-time monitoring and reporting
76	maps and atlases
70	water quality
53	groundwater
53	floods
48	climate change
47	surface water (non-marine)
43	mineral resources
41	energy resources
34	map interfaces
34	contamination and pollution
32	droughts
31	remote sensing
27	geospatial analysis
27	earthquake probabilities
24	invasive species
22	fires
21	environmental health (human)
19	avian influenza
17	volcanic activity
17	land use and land cover
16	tectonic processes
16	health and disease
16	topographic maps
15	geologic maps
13	endangered species
13	acid deposition
13	tsunamis
12	microbiology
11	human impacts
11	oil resources
11	animal behavior
11	seismology
11	geologic history
10	ecology
10	surface water quality
10	biodiversity

Science Topics term usage Thursday, 2011-09-22