Science Topics term usage 2008-04-28

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.)

2552	earthquakes
1323	earthquake occurrences
248	volcanoes
176	maps and atlases
163	real-time monitoring and reporting
98	USGS map servers
86	climate change
80	earthquake probabilities
80	floods
78	seismology
67	Nevada
61	mineral resources
55	energy resources
53	droughts
50	avian influenza
49	water quality
46	contamination and pollution
46	surface water (non-marine)
46	geospatial analysis
41	invasive species
40	remote sensing
39	ground water
33	fires
32	Washoe
24	human impacts
22	tectonic processes
21	health and disease
20	acid deposition
19	river systems
19	environmental health (human)
18	oil resources
17	volcanic activity
16	tsunamis
16	desert ecosystems
15	erosion
12	geochemistry
12	earth structure
12	global warming
11	aquatic ecosystems
11	USGS maps on demand

Science Topics term usage Monday, 2008-04-28