Science Topics term usage 2012-09-30

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.)

1211	earthquakes
471	earthquake occurrences
108	volcanoes
48	maps and atlases
40	real-time monitoring and reporting
37	remote sensing
34	energy resources
30	mineral resources
29	climate change
26	earthquake probabilities
24	seismology
24	groundwater
24	droughts
23	surface water (non-marine)
21	map interfaces
19	environmental health (human)
19	geospatial analysis
17	earth sciences
17	invasive species
15	water quality
15	human impacts
15	floods
15	contamination and pollution
14	avian influenza
13	biogeography
13	geologic processes
12	topographic maps
11	volcanic activity
11	hydrogeology
10	microbiology
9	geographic information systems (GIS)
9	erosion
9	fires
9	tectonic processes
9	plants (organisms)
8	geochemistry
8	land use and land cover
8	mathematical modeling
8	health and disease
7	oil resources

Science Topics term usage Sunday, 2012-09-30