Science Topics term usage 2007-11-26

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.)

76	mine sites
64	geographic information systems (GIS)
60	earthquakes
59	volcanoes
30	earthquake occurrences
28	earth structure
24	acid deposition
22	sea surface temperature
21	climate change
19	contamination and pollution
18	endangered species
17	hurricanes
17	rocks and deposits
16	global warming
16	tsunamis
16	real-time monitoring and reporting
16	energy resources
16	water quality
16	tectonic processes
15	impact cratering
15	land use and land cover
15	desert ecosystems
14	erosion
14	oil resources
14	human impacts
13	mineral resources
13	volcanic eruption prediction
13	geologic history
13	sediment transport
13	ocean characteristics
13	ground water
12	sea-floor characteristics
12	mammalogy
11	ground-water flow
11	landslides
11	waste treatment and disposal
11	animals
11	global change
11	health and disease
10	natural gas resources

Science Topics term usage Monday, 2007-11-26