Science Topics term usage 2011-04-26

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.)

1040	earthquakes
324	earthquake occurrences
254	volcanoes
150	floods
113	real-time monitoring and reporting
103	maps and atlases
75	groundwater
71	surface water (non-marine)
70	climate change
53	mineral resources
42	map interfaces
39	earthquake probabilities
38	geospatial analysis
35	energy resources
34	contamination and pollution
33	water quality
30	remote sensing
30	seismology
27	topographic maps
26	droughts
21	invasive species
21	fires
21	human impacts
18	oil resources
17	tsunamis
16	volcanic activity
13	hydrology
13	environmental health (human)
13	streamflow
12	avian influenza
11	acid deposition
10	surface-water level
10	river systems
10	land use and land cover
9	natural gas resources
9	groundwater flow
9	volcanic eruption prediction
8	soil resources
8	surface water quality
8	geologic maps

Science Topics term usage Tuesday, 2011-04-26