Science Topics term usage 2009-12-23

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.)

837	earthquakes
410	volcanoes
380	earthquake occurrences
135	mathematical modeling
121	maps and atlases
63	climate change
63	real-time monitoring and reporting
60	energy resources
59	mineral resources
51	topographic maps
37	floods
37	ground water
36	map interfaces
35	earthquake probabilities
33	stream-gage measurement
32	ground-water flow
32	remote sensing
28	seismology
25	natural gas resources
24	water quality
23	droughts
22	invasive species
22	geospatial analysis
21	contamination and pollution
20	avian influenza
19	surface water (non-marine)
19	geologic maps
17	global warming
16	hazards
15	fires
15	volcanic activity
14	oil resources
14	geography
14	geologic history
12	soil resources
12	acid deposition
12	biogeography
11	endangered species
11	environmental health (human)
11	tectonic processes

Science Topics term usage Wednesday, 2009-12-23