Science Topics term usage 2008-03-09

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.)

536	earthquakes
254	earthquake occurrences
142	volcanoes
103	maps and atlases
101	real-time monitoring and reporting
62	USGS map servers
47	climate change
41	energy resources
40	mineral resources
38	surface water (non-marine)
37	ground water
36	avian influenza
32	geospatial analysis
32	contamination and pollution
32	water quality
30	invasive species
27	remote sensing
24	environmental health (human)
23	fires
16	seismology
14	earthquake probabilities
10	erosion
10	oil resources
9	human impacts
9	river systems
9	desert ecosystems
9	ecosystems
8	biogeography
8	endangered species
8	California
7	topography
7	aerial photography
7	tsunamis
7	natural gas resources
7	plants (organisms)
7	aquatic ecosystems
7	streamflow
7	tectonic processes
6	land use and land cover
6	animals

Science Topics term usage Sunday, 2008-03-09