Science Topics term usage 2008-02-24

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.)

54	geographic information systems (GIS)
49	earthquakes
45	nonvascular plants
22	volcanoes
21	earthquake occurrences
17	animals
16	contamination and pollution
16	acid deposition
12	climate change
11	glaciation
11	aquatic ecosystems
11	erosion
11	real-time monitoring and reporting
10	tectonic processes
10	human impacts
10	oil resources
10	bathymetry
9	algal blooms
9	desert ecosystems
9	coal resources
9	mineral resources
9	pesticide and herbicide contamination
9	ground water
9	aerial photography
8	rocks and deposits
8	impact cratering
8	tsunamis
8	plants (organisms)
8	administrative and political boundaries
8	ocean-atmosphere interaction
8	geospatial analysis
8	energy resources
8	drainage basins
7	global warming
7	snow and ice cover
7	planetary sciences
7	ground-water quality
7	avian influenza
6	grassland ecosystems
6	fires

Science Topics term usage Sunday, 2008-02-24