Science Topics term usage 2012-01-20

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.)

588	earthquakes
168	earthquake occurrences
135	volcanoes
78	maps and atlases
54	real-time monitoring and reporting
52	energy resources
47	floods
46	mineral resources
39	map interfaces
39	groundwater
35	water quality
33	climate change
32	oil resources
29	geospatial analysis
25	surface water (non-marine)
24	invasive species
24	topographic maps
24	contamination and pollution
18	avian influenza
17	earthquake probabilities
16	magnetic field (earth)
16	droughts
15	remote sensing
14	geologic maps
13	environmental health (human)
13	fires
11	geomorphology
10	seismology
10	animals
10	health and disease
9	vertebrates
9	life sciences
9	field inventory and monitoring
8	acid deposition
8	land use and land cover
8	geographic information systems (GIS)
8	surface water quality
8	tsunamis
7	natural gas resources
7	geochemistry

Science Topics term usage Friday, 2012-01-20