Science Topics term usage 2009-06-07

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.)

460	earthquakes
244	earthquake occurrences
121	volcanoes
79	maps and atlases
69	real-time monitoring and reporting
37	USGS map servers
34	mineral resources
29	topographic maps
27	energy resources
26	ground water
26	water quality
25	climate change
25	contamination and pollution
20	surface water (non-marine)
20	droughts
19	invasive species
18	floods
18	remote sensing
17	environmental health (human)
16	avian influenza
16	geologic maps
16	geospatial analysis
12	fires
11	seismology
10	earth structure
8	earthquake probabilities
8	desert ecosystems
8	stream-gage measurement
7	volcanic activity
7	rocks and deposits
7	hazards
6	tsunamis
6	ground-water flow
6	freshwater ecosystems
6	cartography
5	radiometric dating
5	health and disease
5	tectonic processes
5	human impacts
5	ocean characteristics

Science Topics term usage Sunday, 2009-06-07