Science Topics term usage 2011-04-20

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.)

1016	earthquakes
321	earthquake occurrences
209	volcanoes
113	maps and atlases
103	real-time monitoring and reporting
76	groundwater
64	surface water (non-marine)
60	floods
53	mineral resources
51	climate change
48	map interfaces
46	geospatial analysis
40	remote sensing
37	earthquake probabilities
35	energy resources
26	water quality
26	invasive species
25	contamination and pollution
25	geologic maps
25	tsunamis
24	avian influenza
23	droughts
23	human impacts
22	topographic maps
20	fires
17	seismology
16	environmental health (human)
15	microbiology
14	streamflow
13	river systems
12	tectonic processes
11	volcanic activity
11	acid deposition
11	land use and land cover
10	endangered species
10	natural gas resources
10	oil resources
9	hydrology
8	surface water quality
8	animals

Science Topics term usage Wednesday, 2011-04-20