Science Topics term usage 2008-09-16

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.)

486	earthquakes
178	earthquake occurrences
170	volcanoes
152	maps and atlases
86	real-time monitoring and reporting
75	USGS map servers
72	floods
58	energy resources
54	ground water
54	climate change
52	surface water (non-marine)
49	mineral resources
42	water quality
41	invasive species
38	remote sensing
31	droughts
31	contamination and pollution
28	geospatial analysis
28	avian influenza
25	oil resources
22	environmental health (human)
18	seismology
18	earthquake probabilities
16	human impacts
15	river systems
15	natural gas resources
15	acid deposition
15	earth structure
14	streamflow
14	soil resources
14	fires
13	outer core (earth)
13	tectonic processes
12	social sciences
12	hydrology
12	volcanic activity
12	geographic information systems (GIS)
12	endangered species
12	storm surge
11	bathymetry

Science Topics term usage Tuesday, 2008-09-16