Science Topics term usage 2009-01-18

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.)

430	earthquakes
190	earthquake occurrences
109	volcanoes
94	maps and atlases
45	real-time monitoring and reporting
35	climate change
32	topographic maps
31	USGS map servers
28	mineral resources
24	remote sensing
23	water quality
22	energy resources
21	contamination and pollution
20	droughts
19	geospatial analysis
18	ground water
18	surface water (non-marine)
17	avian influenza
16	geologic maps
15	earthquake probabilities
13	floods
13	seismology
13	ecosystems
11	invasive species
11	acid deposition
11	environmental health (human)
9	desert ecosystems
8	volcanic activity
8	global warming
8	tectonic processes
8	endangered species
8	fires
7	waste treatment and disposal
7	human impacts
7	forest ecosystems
6	soil resources
6	rocks and deposits
6	life sciences
6	social sciences
5	tsunamis

Science Topics term usage Sunday, 2009-01-18