Science Topics term usage 2009-12-15

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.)

950	earthquakes
891	volcanoes
418	earthquake occurrences
148	maps and atlases
137	real-time monitoring and reporting
104	climate change
96	energy resources
89	ground water
88	floods
72	mineral resources
65	topographic maps
62	surface water (non-marine)
59	volcanic activity
57	map interfaces
56	contamination and pollution
54	invasive species
49	water quality
46	earthquake probabilities
45	avian influenza
44	remote sensing
38	human impacts
37	geospatial analysis
34	seismology
34	oil resources
29	health and disease
27	streamflow
27	droughts
26	erosion
26	fires
25	environmental health (human)
23	volcanic features
21	geologic maps
21	soil resources
19	river systems
18	tectonic processes
17	hazards
17	ground-water quality
17	topics
16	global warming
15	acid deposition

Science Topics term usage Tuesday, 2009-12-15