Science Topics term usage 2009-11-15

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.)

1221	earthquakes
602	earthquake occurrences
270	volcanoes
218	maps and atlases
111	climate change
90	mineral resources
80	topographic maps
66	floods
65	contamination and pollution
64	polymerase chain reaction
61	real-time monitoring and reporting
61	ground water
57	remote sensing
56	energy resources
52	map interfaces
46	surface water (non-marine)
45	water quality
42	geospatial analysis
42	avian influenza
41	geologic maps
39	volcanic activity
35	field sampling
34	hazards
33	human impacts
31	transect sampling
30	invasive species
28	fires
28	global warming
28	droughts
27	landslides
27	seismology
26	aquatic ecosystems
25	water chemistry
25	California
25	environmental health (human)
23	earthquake probabilities
23	tectonic processes
22	earth structure
21	oil resources
19	life sciences

Science Topics term usage Sunday, 2009-11-15