Science Topics term usage 2008-03-14

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.)

397	earthquakes
146	earthquake occurrences
138	volcanoes
134	maps and atlases
92	real-time monitoring and reporting
81	USGS map servers
66	ground water
61	mineral resources
60	water quality
59	climate change
58	surface water (non-marine)
57	energy resources
55	contamination and pollution
53	invasive species
47	remote sensing
47	geospatial analysis
43	avian influenza
41	fires
37	environmental health (human)
19	earth structure
17	ecosystems
16	acid deposition
16	floods
15	human impacts
14	river systems
14	sediment transport
14	streamflow
14	seismology
14	land use and land cover
13	earthquake probabilities
12	aerial photography
12	tsunamis
12	tectonic processes
11	geologic history
11	hurricanes
11	USGS budget
11	land use change
11	topics
11	ground-water flow
11	rocks and deposits

Science Topics term usage Friday, 2008-03-14