Science Topics term usage 2013-03-21

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.)

384	earthquakes
132	earthquake occurrences
94	volcanoes
49	maps and atlases
36	real-time monitoring and reporting
35	mineral resources
34	climate change
29	geospatial analysis
28	invasive species
26	contamination and pollution
26	remote sensing
25	surface water (non-marine)
25	groundwater
24	energy resources
23	floods
22	water quality
22	map interfaces
21	droughts
19	microbiology
17	tectonic processes
14	animals
14	fires
13	avian influenza
12	geologic maps
12	biological and physical processes
12	topographic maps
11	aerial photography
11	geology
10	natural resource management
10	acid deposition
10	ecology
10	geochemistry
9	geographic information systems (GIS)
9	environmental health (human)
9	mantle (earth)
8	drainage basins
8	earth sciences
8	hydrogeology
8	surface water quality
8	water resource management

Science Topics term usage Thursday, 2013-03-21