Science Topics term usage 2011-10-25

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.)

812	earthquakes
297	earthquake occurrences
157	volcanoes
91	maps and atlases
49	mineral resources
46	energy resources
42	floods
42	climate change
42	surface water (non-marine)
41	map interfaces
40	real-time monitoring and reporting
33	groundwater
29	invasive species
27	water quality
27	geospatial analysis
26	droughts
26	avian influenza
25	remote sensing
20	earthquake probabilities
19	topographic maps
19	contamination and pollution
19	acid deposition
19	volcanic activity
16	fires
15	microbiology
15	oil resources
13	human impacts
12	environmental health (human)
11	seismology
11	erosion
11	natural gas resources
11	geologic maps
10	tectonic processes
10	life sciences
10	land use and land cover
10	hydrology
10	topography
9	biodiversity
9	topics
9	groundwater flow

Science Topics term usage Tuesday, 2011-10-25