Science Topics term usage 2009-05-04

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.)

960	earthquakes
460	earthquake occurrences
238	volcanoes
147	maps and atlases
134	real-time monitoring and reporting
77	USGS map servers
68	climate change
67	floods
65	surface water (non-marine)
60	mineral resources
52	ground water
51	seismology
46	water quality
46	remote sensing
43	topographic maps
42	avian influenza
42	energy resources
38	contamination and pollution
33	earthquake probabilities
31	invasive species
30	geologic maps
29	geospatial analysis
25	environmental health (human)
24	droughts
21	acid deposition
16	hazards
16	fires
16	river systems
15	animals
15	erosion
14	streamflow
14	health and disease
13	global warming
13	endangered species
13	oil resources
13	human impacts
12	desert ecosystems
12	stream discharge
11	nonmetallic mineral resources
11	stream-gage measurement

Science Topics term usage Monday, 2009-05-04