Science Topics term usage 2012-04-20

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.)

820	earthquakes
366	volcanoes
252	earthquake occurrences
84	maps and atlases
55	real-time monitoring and reporting
45	climate change
44	mineral resources
42	groundwater
39	earthquake probabilities
37	surface water (non-marine)
37	remote sensing
36	geospatial analysis
36	droughts
34	energy resources
32	floods
30	contamination and pollution
28	avian influenza
28	map interfaces
26	water quality
25	invasive species
24	seismology
20	topographic maps
18	oil resources
17	hydrology
16	tsunamis
13	water chemistry
13	fires
13	volcanic activity
12	microbiology
12	water properties
11	environmental health (human)
10	drinking water use
10	geologic maps
10	aquatic biology
10	land use and land cover
9	geologic processes
9	acid deposition
9	volcanic features
8	geothermal resources
8	tectonic processes

Science Topics term usage Friday, 2012-04-20