Science Topics term usage 2009-06-29

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.)

377	earthquakes
175	earthquake occurrences
125	volcanoes
114	maps and atlases
69	real-time monitoring and reporting
51	USGS map servers
49	topographic maps
44	ground water
38	mineral resources
37	energy resources
34	remote sensing
34	surface water (non-marine)
34	water quality
34	climate change
33	geospatial analysis
31	contamination and pollution
23	invasive species
22	droughts
22	floods
22	geologic maps
17	land surface characteristics
17	ocean characteristics
16	avian influenza
16	oil resources
15	earthquake probabilities
14	earth characteristics
13	seismology
12	environmental health (human)
12	geographic information systems (GIS)
10	fires
10	soil resources
10	streamflow
10	global warming
9	surface water quality
8	tectonic processes
8	health and disease
8	coal resources
7	ground-water quality
7	natural gas resources
7	erosion

Science Topics term usage Monday, 2009-06-29