Science Topics term usage 2011-04-27

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.)

873	earthquakes
257	earthquake occurrences
252	volcanoes
142	floods
125	real-time monitoring and reporting
119	maps and atlases
73	groundwater
71	surface water (non-marine)
66	mineral resources
51	map interfaces
50	climate change
48	water quality
47	energy resources
41	geospatial analysis
38	contamination and pollution
35	earthquake probabilities
32	topographic maps
25	avian influenza
24	remote sensing
23	droughts
22	fires
21	oil resources
20	river systems
20	invasive species
20	geologic maps
18	tectonic processes
18	seismology
18	land use and land cover
17	human impacts
16	hydrology
16	environmental health (human)
15	microbiology
13	surface water quality
13	tsunamis
12	water resources
11	hydrogeology
11	groundwater quality
11	pesticide and herbicide contamination
10	hazards
10	streamflow

Science Topics term usage Wednesday, 2011-04-27