Science Topics term usage 2008-03-23

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.)

244	earthquakes
104	earthquake occurrences
90	volcanoes
66	maps and atlases
61	real-time monitoring and reporting
39	USGS map servers
32	climate change
31	surface water (non-marine)
29	mineral resources
27	ground water
26	energy resources
25	avian influenza
22	geospatial analysis
21	contamination and pollution
21	invasive species
21	water quality
20	remote sensing
17	environmental health (human)
17	fires
14	earthquake probabilities
11	oil resources
11	acid deposition
10	health and disease
10	earth structure
10	cartography
9	volcanic activity
8	surface water quality
8	global warming
7	human impacts
7	floods
7	plants (organisms)
7	streamflow
6	rocks and deposits
6	global change
6	desert ecosystems
6	river systems
6	tectonic processes
6	magnetic field (earth)
6	vertebrates
6	ocean temperature

Science Topics term usage Sunday, 2008-03-23