Science Topics term usage 2008-09-13

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.)

319	earthquakes
141	earthquake occurrences
102	real-time monitoring and reporting
90	maps and atlases
70	volcanoes
58	floods
45	USGS map servers
42	energy resources
35	remote sensing
33	climate change
33	surface water (non-marine)
32	mineral resources
29	ground water
28	contamination and pollution
23	water quality
21	geospatial analysis
21	invasive species
21	droughts
18	avian influenza
16	environmental health (human)
15	storm surge
13	fires
13	earthquake probabilities
12	oil resources
10	rocks and deposits
9	acid deposition
9	USGS maps on demand
8	volcanic activity
7	river systems
7	human impacts
7	USGS budget
6	ground-water flow
6	earth structure
6	streamflow
6	aquatic ecosystems
6	desert ecosystems
5	gravitational field (earth)
5	population and community ecology
5	natural gas resources
5	hydrology

Science Topics term usage Saturday, 2008-09-13