Science Topics term usage 2009-09-16

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.)

727	earthquakes
428	volcanoes
311	earthquake occurrences
287	maps and atlases
148	real-time monitoring and reporting
135	topographic maps
120	contamination and pollution
111	climate change
110	ground water
109	water quality
91	energy resources
88	map interfaces
88	mineral resources
75	floods
72	remote sensing
70	surface water (non-marine)
70	geospatial analysis
62	invasive species
59	avian influenza
55	droughts
53	acid deposition
50	fires
46	health and disease
45	geologic maps
44	human impacts
41	environmental health (human)
41	life sciences
38	hydrology
34	soil resources
34	scientific careers
30	surface water quality
29	tectonic processes
25	natural gas resources
25	geochemistry
25	plants (organisms)
24	river systems
24	volcanic activity
24	precipitation (atmospheric)
24	cartography
24	stream-gage measurement

Science Topics term usage Wednesday, 2009-09-16