Science Topics term usage 2009-02-28

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.)

300	earthquakes
176	volcanoes
125	earthquake occurrences
102	maps and atlases
60	real-time monitoring and reporting
59	USGS map servers
46	energy resources
44	ground water
42	climate change
35	droughts
35	topographic maps
34	water quality
34	mineral resources
32	surface water (non-marine)
31	floods
28	contamination and pollution
28	geospatial analysis
25	remote sensing
25	avian influenza
22	geologic maps
22	invasive species
19	environmental health (human)
18	fires
15	acid deposition
14	oil resources
13	health and disease
11	earth structure
11	biogeography
10	global warming
10	erosion
10	human impacts
9	topics
9	earthquake probabilities
9	USGS budget
9	global change
8	tsunamis
8	tectonic processes
8	desert ecosystems
8	animals
7	social sciences

Science Topics term usage Saturday, 2009-02-28