Science Topics term usage 2007-10-02

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.)

101	volcanoes
100	earthquakes
95	climate change
90	geographic information systems (GIS)
39	earthquake occurrences
32	animals
27	earth structure
22	acid deposition
19	tsunamis
18	health and disease
18	real-time monitoring and reporting
15	ground water
15	human impacts
14	river systems
14	tectonic processes
14	rocks and deposits
13	erosion
13	surface water (non-marine)
13	streamflow
12	contamination and pollution
12	mineral resources
12	global warming
12	aerial photography
11	global change
11	hurricanes
11	land use and land cover
11	water supply and demand
11	volcanic activity
11	pesticide and herbicide contamination
11	topography
11	maps and atlases
10	desert ecosystems
10	ground-water flow
10	endangered species
9	precipitation (atmospheric)
9	succession (biological)
9	energy resources
9	aquatic ecosystems
9	impact cratering
8	land surface characteristics

Science Topics term usage Tuesday, 2007-10-02