Science Topics term usage 2009-02-25

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.)

429	earthquakes
294	volcanoes
173	earthquake occurrences
146	maps and atlases
72	real-time monitoring and reporting
70	floods
68	energy resources
68	mineral resources
66	USGS map servers
66	climate change
53	topographic maps
50	remote sensing
49	water quality
48	ground water
40	droughts
36	surface water (non-marine)
33	invasive species
32	avian influenza
30	contamination and pollution
26	geologic maps
26	geospatial analysis
22	aerial photography
22	animals
22	oil resources
22	ground-water quality
21	acid deposition
19	fires
17	water supply and demand
17	human impacts
16	environmental health (human)
15	drainage basins
15	erosion
14	coal resources
14	tectonic processes
14	tsunamis
14	natural gas resources
14	aquatic ecosystems
12	desert ecosystems
12	seismology
12	ocean characteristics

Science Topics term usage Wednesday, 2009-02-25