Science Topics term usage 2008-03-16

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.)

366	earthquakes
151	earthquake occurrences
100	volcanoes
92	maps and atlases
59	real-time monitoring and reporting
49	climate change
48	USGS map servers
44	avian influenza
44	surface water (non-marine)
41	ground water
40	mineral resources
40	geospatial analysis
39	water quality
37	energy resources
36	invasive species
29	contamination and pollution
26	remote sensing
23	fires
19	environmental health (human)
14	global warming
12	USGS budget
12	earthquake probabilities
11	acid deposition
11	droughts
10	biogeography
10	desert ecosystems
8	seismology
7	Oregon
7	rocks and deposits
7	USGS maps on demand
7	human impacts
7	earth structure
7	tectonic processes
7	landslides
7	precipitation (atmospheric)
7	river systems
7	water resources
7	estuarine ecosystems
6	ground-water flow
6	oil resources

Science Topics term usage Sunday, 2008-03-16