Science Topics term usage 2009-05-29

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.)

650	earthquakes
305	earthquake occurrences
124	volcanoes
99	real-time monitoring and reporting
88	maps and atlases
54	energy resources
45	climate change
44	USGS map servers
39	floods
39	surface water (non-marine)
34	water quality
31	mineral resources
31	ground water
30	geospatial analysis
27	remote sensing
27	contamination and pollution
26	topographic maps
25	invasive species
22	droughts
20	earthquake probabilities
19	geologic maps
19	oil resources
19	fires
18	avian influenza
16	human impacts
14	environmental health (human)
13	seismology
12	acid deposition
11	river systems
10	California
10	surface water quality
9	animals
9	desert ecosystems
9	land use and land cover
8	tectonic processes
8	USGS budget
8	volcanic activity
8	stream discharge
7	drainage basins
7	surface-water level

Science Topics term usage Friday, 2009-05-29