Science Topics term usage 2008-03-28

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.)

373	earthquakes
158	earthquake occurrences
129	volcanoes
112	maps and atlases
67	floods
58	USGS map servers
56	real-time monitoring and reporting
51	energy resources
48	climate change
45	mineral resources
42	surface water (non-marine)
37	ground water
37	water quality
34	geospatial analysis
33	droughts
31	fires
29	avian influenza
27	remote sensing
27	contamination and pollution
23	environmental health (human)
23	invasive species
20	acid deposition
14	river systems
14	endangered species
13	erosion
13	earth structure
12	natural gas resources
12	oil resources
10	magnetic field (earth)
10	earthquake probabilities
10	seismology
9	drainage basins
9	geologic processes
8	California
8	desert ecosystems
8	volcanic activity
8	coastal zones
7	streamflow
7	pesticide and herbicide contamination
7	land use and land cover

Science Topics term usage Friday, 2008-03-28