Science Topics term usage 2009-04-03

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.)

459	earthquakes
289	volcanoes
172	earthquake occurrences
124	maps and atlases
123	real-time monitoring and reporting
84	USGS map servers
75	energy resources
74	floods
68	water quality
52	remote sensing
50	surface water (non-marine)
50	climate change
50	contamination and pollution
49	topographic maps
41	mineral resources
41	ground water
38	droughts
33	avian influenza
29	invasive species
28	geospatial analysis
26	geologic maps
23	environmental health (human)
21	health and disease
20	oil resources
18	river systems
17	acid deposition
17	earthquake probabilities
15	erosion
15	streamflow
14	fires
13	topography
13	human impacts
12	natural gas resources
11	animals
10	land use and land cover
10	global warming
10	geographic information systems (GIS)
10	stream discharge
10	social sciences
10	global change

Science Topics term usage Friday, 2009-04-03