Science Topics term usage 2013-04-01

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.)

356	earthquakes
101	earthquake occurrences
95	volcanoes
45	maps and atlases
33	remote sensing
32	mineral resources
30	climate change
27	real-time monitoring and reporting
25	oil resources
24	energy resources
23	floods
23	groundwater
20	geospatial analysis
20	surface water (non-marine)
18	map interfaces
17	invasive species
17	geomorphology
15	droughts
14	natural gas resources
14	topographic maps
13	aerial photography
12	groundwater quality
12	contamination and pollution
12	environmental health (human)
12	avian influenza
10	water quality
10	land surface characteristics
10	geographic information systems (GIS)
10	microbiology
10	geologic maps
10	earthquake probabilities
10	employment and volunteer opportunities
10	volcanic activity
9	mass wasting
9	geochemistry
9	tectonic processes
9	geology
8	multispectral imaging
8	ecology
8	endangered species

Science Topics term usage Monday, 2013-04-01