Science Topics term usage 2011-04-13

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.)

1674	earthquakes
510	earthquake occurrences
319	volcanoes
105	maps and atlases
91	real-time monitoring and reporting
80	floods
70	groundwater
65	earthquake probabilities
53	mineral resources
47	map interfaces
45	surface water (non-marine)
41	seismology
41	water quality
41	climate change
36	energy resources
35	droughts
34	geospatial analysis
32	contamination and pollution
30	invasive species
26	remote sensing
25	tsunamis
24	topographic maps
23	fires
21	environmental health (human)
20	avian influenza
18	geologic maps
16	land use and land cover
15	hazards
14	oil resources
14	hydrology
12	river systems
11	stream discharge
10	mass wasting
10	human impacts
8	microbiology
8	hurricanes
8	tectonic processes
8	geologic processes
7	endangered species
7	acid deposition

Science Topics term usage Wednesday, 2011-04-13