Science Topics term usage 2009-10-25

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.)

718	earthquakes
327	earthquake occurrences
213	volcanoes
195	maps and atlases
168	real-time monitoring and reporting
87	climate change
86	mineral resources
82	energy resources
70	contamination and pollution
60	water quality
55	floods
52	ground water
50	topographic maps
47	map interfaces
46	remote sensing
44	geologic maps
42	avian influenza
37	geospatial analysis
37	surface water (non-marine)
36	earthquake probabilities
35	invasive species
33	environmental health (human)
29	earth structure
28	droughts
28	fires
26	oil resources
25	natural resources
24	river systems
24	fossils
23	health and disease
23	volcanic activity
21	endangered species
21	seismology
21	erosion
19	ground-water flow
19	surface water quality
18	geologic processes
18	acid deposition
18	aquatic ecosystems
16	global warming

Science Topics term usage Sunday, 2009-10-25