Science Topics term usage 2009-05-28

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.)

1366	earthquakes
736	earthquake occurrences
149	maps and atlases
138	volcanoes
134	real-time monitoring and reporting
62	climate change
62	topographic maps
58	USGS map servers
54	energy resources
48	mineral resources
44	ground water
44	earthquake probabilities
43	floods
38	surface water (non-marine)
38	water quality
35	geospatial analysis
34	droughts
34	avian influenza
31	remote sensing
31	seismology
29	contamination and pollution
26	geologic maps
23	invasive species
22	tectonic processes
21	environmental health (human)
18	oil resources
16	fires
14	hazards
14	river systems
13	field methods
12	desert ecosystems
12	global warming
10	human impacts
10	acid deposition
10	tsunamis
9	natural gas resources
9	global change
9	earth structure
8	plants (organisms)
8	coal resources

Science Topics term usage Thursday, 2009-05-28