Science Topics term usage 2007-12-03

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.)

73	earthquakes
61	geographic information systems (GIS)
31	volcanoes
26	earth structure
25	human impacts
24	climate change
24	contamination and pollution
22	acid deposition
21	floods
21	earthquake occurrences
19	ground water
19	rocks and deposits
18	tectonic processes
17	geologic history
17	engineering geology
17	energy resources
16	invasive species
16	global change
15	magnetic field (earth)
15	ground-water flow
14	health and disease
14	tsunamis
14	real-time monitoring and reporting
14	water quality
14	endangered species
13	landslides
13	land use and land cover
12	precipitation (atmospheric)
12	snow and ice cover
12	sediment transport
12	water chemistry
12	desertification
11	geologic structure
11	hurricanes
11	harbors
11	water use
11	global warming
11	geochemistry
11	aquatic ecosystems
11	oil resources

Science Topics term usage Monday, 2007-12-03