Science Topics term usage 2009-04-15

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.)

555	earthquakes
236	earthquake occurrences
235	volcanoes
151	maps and atlases
95	real-time monitoring and reporting
90	ground water
72	water quality
71	climate change
69	floods
67	USGS map servers
66	topographic maps
56	mineral resources
51	energy resources
50	contamination and pollution
45	surface water (non-marine)
41	droughts
39	geospatial analysis
38	remote sensing
29	health and disease
28	avian influenza
28	environmental health (human)
27	earthquake probabilities
25	invasive species
24	fires
21	geologic maps
21	volcanic activity
20	animals
20	surface water quality
18	river systems
17	seismology
17	acid deposition
17	oil resources
16	global warming
16	tsunamis
15	earth structure
14	stream discharge
14	human impacts
14	tectonic processes
13	coal resources
13	ground-water flow

Science Topics term usage Wednesday, 2009-04-15