Science Topics term usage 2007-12-17

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.)

68	earthquakes
58	geographic information systems (GIS)
38	animal and plant census
26	volcanoes
22	earthquake occurrences
21	acid deposition
18	rocks and deposits
18	tsunamis
17	floods
17	earth structure
15	climate change
15	USGS Quadrangles
14	geologic history
14	health and disease
13	global change
13	energy resources
13	mineral resources
12	human impacts
12	land use and land cover
12	plants (organisms)
11	tectonic processes
11	gravitational field (earth)
10	precipitation (atmospheric)
10	real-time monitoring and reporting
10	global warming
10	endangered species
9	scientific careers
9	aquatic ecosystems
9	aerial photography
9	ground water
9	estuarine ecosystems
9	seismology
9	animals
8	contamination and pollution
8	invasive species
8	volcanic activity
8	hurricanes
8	snow and ice cover
8	stream-gage measurement
8	erosion

Science Topics term usage Monday, 2007-12-17