Science Topics term usage 2008-04-03

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.)

383	earthquakes
157	earthquake occurrences
137	volcanoes
134	maps and atlases
94	real-time monitoring and reporting
70	USGS map servers
67	energy resources
59	floods
53	climate change
52	ground water
46	geospatial analysis
45	water quality
44	mineral resources
42	contamination and pollution
37	surface water (non-marine)
33	droughts
30	invasive species
27	remote sensing
26	avian influenza
22	environmental health (human)
21	fires
21	oil resources
17	river systems
15	seismology
14	topography
13	erosion
13	earth structure
12	streamflow
12	sediment transport
12	hydrology
11	coal resources
11	earthquake probabilities
11	rocks and deposits
11	acid deposition
10	ecosystems
10	plants (organisms)
10	global warming
10	stream-gage measurement
10	biodiversity
10	tectonic processes

Science Topics term usage Thursday, 2008-04-03