Science Topics term usage 2009-02-27

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.)

482	earthquakes
325	volcanoes
214	earthquake occurrences
137	maps and atlases
92	real-time monitoring and reporting
88	USGS map servers
86	energy resources
81	water quality
70	climate change
64	mineral resources
60	contamination and pollution
58	droughts
56	remote sensing
53	ground water
52	floods
51	surface water (non-marine)
45	invasive species
44	topographic maps
43	geospatial analysis
41	avian influenza
30	fires
27	environmental health (human)
26	oil resources
22	animals
20	geologic maps
16	tsunamis
16	global warming
16	earthquake probabilities
14	USGS budget
14	rocks and deposits
14	erosion
13	earth structure
13	isotopic analysis
13	desert ecosystems
12	seismology
12	USGS maps on demand
11	aerial photography
11	global change
10	river systems
10	water supply and demand

Science Topics term usage Friday, 2009-02-27