Science Topics term usage 2012-04-30

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.)

751	earthquakes
251	earthquake occurrences
204	volcanoes
83	maps and atlases
60	real-time monitoring and reporting
57	groundwater
53	climate change
50	mineral resources
48	surface water (non-marine)
44	contamination and pollution
38	droughts
38	remote sensing
37	geospatial analysis
35	map interfaces
32	floods
32	water quality
30	avian influenza
28	invasive species
26	energy resources
26	earthquake probabilities
22	topographic maps
20	geologic maps
19	fires
18	seismology
17	environmental health (human)
16	human impacts
15	land use and land cover
15	streamflow
15	geologic processes
14	hydrology
13	microbiology
13	economic geology
13	tsunamis
12	marine geology
12	endangered species
11	animals
10	biodiversity
10	acid deposition
9	stream discharge
9	water properties

Science Topics term usage Monday, 2012-04-30