Science Topics term usage 2007-11-27

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.)

84	geographic information systems (GIS)
81	earthquakes
76	volcanoes
37	ecosystem functions
33	climate change
29	earthquake occurrences
28	aquatic ecosystems
27	acid deposition
27	mine sites
25	earth structure
24	erosion
22	land use and land cover
19	human impacts
19	contamination and pollution
19	energy resources
17	mineral resources
17	global warming
16	geologic history
16	ground-water flow
15	water quality
15	grassland ecosystems
15	hurricanes
15	rocks and deposits
14	volcanic eruption prediction
14	global change
14	magnetic field (earth)
14	endangered species
14	animals
14	tectonic processes
14	real-time monitoring and reporting
14	geologic structure
14	ecosystems
13	habitats
13	ecological processes
13	drainage basins
13	volcanic activity
13	droughts
12	topics
12	ocean characteristics
12	tsunamis

Science Topics term usage Tuesday, 2007-11-27