Science Topics term usage 2008-03-13

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.)

443	earthquakes
173	volcanoes
169	earthquake occurrences
124	maps and atlases
84	real-time monitoring and reporting
76	USGS map servers
71	water quality
62	mineral resources
60	climate change
60	energy resources
55	surface water (non-marine)
55	ground water
53	contamination and pollution
44	geospatial analysis
43	remote sensing
42	invasive species
41	avian influenza
34	environmental health (human)
32	fires
19	human impacts
19	river systems
18	earthquake probabilities
18	acid deposition
17	animals
16	erosion
15	seismology
15	volcanic activity
15	geochemistry
15	global warming
14	floods
13	tectonic processes
12	gravitational field (earth)
12	hazards
12	pharmaceutical contamination
12	snow and ice cover
12	oil resources
11	hydrology
11	precipitation (atmospheric)
11	natural gas resources
11	cartography

Science Topics term usage Thursday, 2008-03-13