Science Topics term usage 2011-12-20

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.)

775	earthquakes
312	earthquake occurrences
114	volcanoes
64	maps and atlases
46	energy resources
43	real-time monitoring and reporting
42	mineral resources
42	groundwater
35	surface water (non-marine)
34	water quality
34	climate change
34	map interfaces
27	oil resources
25	floods
24	remote sensing
22	geospatial analysis
22	avian influenza
19	droughts
17	environmental health (human)
17	geologic maps
17	natural gas resources
17	contamination and pollution
16	topographic maps
14	aquifers
13	land use and land cover
13	invasive species
12	earthquake probabilities
12	microbiology
12	stream-gage measurement
10	hydrology
9	earth sciences
9	human impacts
8	life sciences
7	fires
7	geology
7	water chemistry
7	computational methods
7	streamflow
7	metallic ores
7	surface water quality

Science Topics term usage Tuesday, 2011-12-20