Science Topics term usage 2009-12-18

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.)

904	earthquakes
399	earthquake occurrences
344	volcanoes
139	maps and atlases
118	real-time monitoring and reporting
71	climate change
70	map interfaces
69	energy resources
69	ground water
68	surface water (non-marine)
65	floods
61	topographic maps
59	mineral resources
58	remote sensing
54	seismology
51	water quality
45	contamination and pollution
44	earthquake probabilities
37	invasive species
36	geospatial analysis
31	geologic maps
29	volcanic activity
28	droughts
25	oil resources
25	surface water quality
22	seismic methods
21	fires
21	avian influenza
20	life sciences
19	river systems
19	geologic processes
19	drainage basins
18	ground-water quality
17	acid deposition
16	science centers
16	land use and land cover
15	global warming
15	ground-water flow
15	endangered species
14	human impacts

Science Topics term usage Friday, 2009-12-18