Science Topics term usage 2011-02-20

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.)

938	earthquakes
313	earthquake occurrences
143	volcanoes
70	maps and atlases
44	real-time monitoring and reporting
39	seismology
38	mineral resources
36	climate change
33	floods
31	energy resources
28	surface water (non-marine)
26	map interfaces
24	avian influenza
24	earthquake probabilities
24	invasive species
24	water quality
23	remote sensing
23	groundwater
21	topographic maps
20	geospatial analysis
18	droughts
18	volcanic activity
18	geologic maps
17	oil resources
16	contamination and pollution
13	fires
13	microbiology
12	environmental health (human)
12	land use and land cover
10	acid deposition
7	earth structure
6	hydrology
6	stream discharge
6	hydrogeology
6	hazards
5	natural gas resources
5	tectonic processes
5	volcanic eruption prediction
4	erosion
4	radiometric dating

Science Topics term usage Sunday, 2011-02-20