Science Topics term usage 2009-02-24

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.)

446	earthquakes
282	volcanoes
191	earthquake occurrences
138	maps and atlases
76	mineral resources
70	real-time monitoring and reporting
67	USGS map servers
63	energy resources
61	ground water
59	floods
58	contamination and pollution
56	climate change
55	water quality
50	topographic maps
40	surface water (non-marine)
40	droughts
38	invasive species
35	geospatial analysis
34	geologic maps
34	remote sensing
27	avian influenza
21	animals
21	environmental health (human)
19	acid deposition
18	human impacts
18	seismology
18	health and disease
17	oil resources
17	earthquake probabilities
16	global warming
16	endangered species
15	fires
14	land use and land cover
14	hazards
14	earth structure
14	natural gas resources
13	freshwater ecosystems
13	hydrology
13	desert ecosystems
12	sediment transport

Science Topics term usage Tuesday, 2009-02-24