Science Topics term usage 2013-02-22

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.)

512	earthquakes
181	earthquake occurrences
97	volcanoes
49	real-time monitoring and reporting
44	maps and atlases
29	climate change
27	bacteria
27	remote sensing
24	energy resources
23	groundwater
22	mineral resources
21	surface water (non-marine)
20	microbiology
20	invasive species
19	geospatial analysis
18	floods
15	water quality
14	droughts
13	map interfaces
12	fires
11	geologic history
11	tectonic processes
11	life sciences
11	tsunamis
11	environmental health (human)
10	geologic maps
10	aerial photography
9	seismology
9	contamination and pollution
9	land use and land cover
8	ecology
8	earth structure
7	geographic information systems (GIS)
7	geochemistry
7	natural resources
7	earth sciences
7	acid deposition
6	human impacts
6	sedimentology
6	topographic maps

Science Topics term usage Friday, 2013-02-22