Science Topics term usage 2009-05-30

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.)

354	earthquakes
180	earthquake occurrences
114	volcanoes
55	maps and atlases
52	real-time monitoring and reporting
34	energy resources
34	USGS map servers
26	ground water
24	remote sensing
23	mineral resources
21	geospatial analysis
20	surface water (non-marine)
20	water quality
19	climate change
19	floods
17	invasive species
15	topographic maps
13	geologic maps
12	droughts
12	avian influenza
11	seismology
10	contamination and pollution
10	earthquake probabilities
10	fires
9	oil resources
8	volcanic activity
6	natural gas resources
6	environmental health (human)
6	desert ecosystems
6	water temperature
4	streamflow
4	forest ecosystems
4	acid deposition
4	endangered species
4	lakes
4	ground-water flow
4	global warming
4	drainage basins
4	tectonic processes
3	river systems

Science Topics term usage Saturday, 2009-05-30