Science Topics term usage 2012-02-18

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.)

408	earthquakes
141	earthquake occurrences
79	volcanoes
65	maps and atlases
50	real-time monitoring and reporting
41	map interfaces
40	climate change
33	mineral resources
27	energy resources
27	remote sensing
26	groundwater
26	surface water (non-marine)
25	water quality
25	floods
23	geospatial analysis
21	droughts
20	avian influenza
19	invasive species
18	contamination and pollution
17	geologic maps
15	earthquake probabilities
14	topographic maps
13	environmental health (human)
13	cartography
12	microbiology
11	oil resources
11	ocean currents
10	health and disease
9	natural gas resources
9	tectonic processes
8	seismology
8	fires
6	human impacts
6	geologic history
6	volcanic activity
6	river systems
5	land use and land cover
5	hydrology
5	acid deposition
5	impact cratering

Science Topics term usage Saturday, 2012-02-18