Science Topics term usage 2009-07-20

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.)

394	earthquakes
180	earthquake occurrences
112	maps and atlases
98	volcanoes
68	real-time monitoring and reporting
55	mineral resources
48	topographic maps
45	water quality
45	climate change
37	ground water
35	geospatial analysis
34	surface water (non-marine)
34	map interfaces
30	energy resources
27	remote sensing
26	droughts
21	contamination and pollution
21	invasive species
18	avian influenza
18	geologic maps
16	floods
14	fires
12	environmental health (human)
11	earthquake probabilities
11	river systems
9	earth structure
9	seismology
8	tectonic processes
7	surface water quality
6	geographic information systems (GIS)
6	surface-water level
6	geography
6	oil resources
5	global warming
5	soil resources
5	population and community ecology
5	human impacts
5	rocks and deposits
5	desert ecosystems
5	volcanic activity

Science Topics term usage Monday, 2009-07-20