Science Topics term usage 2012-01-17

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.)

748	earthquakes
247	earthquake occurrences
170	volcanoes
97	maps and atlases
53	real-time monitoring and reporting
48	mineral resources
42	climate change
41	map interfaces
38	energy resources
37	groundwater
34	topographic maps
33	surface water (non-marine)
31	population and community ecology
27	floods
27	droughts
27	geospatial analysis
27	water quality
24	earthquake probabilities
23	contamination and pollution
18	oil resources
18	invasive species
18	acid deposition
17	geologic maps
15	seismology
15	environmental health (human)
15	human impacts
15	remote sensing
14	avian influenza
13	tsunamis
13	earth structure
12	water chemistry
11	microbiology
10	health and disease
10	fires
10	animals
9	effects of climate change
9	volcanic activity
9	land use and land cover
8	groundwater flow
8	sea-floor characteristics

Science Topics term usage Tuesday, 2012-01-17