Science Topics term usage 2009-01-13

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.)

898	earthquakes
333	earthquake occurrences
214	volcanoes
166	maps and atlases
81	real-time monitoring and reporting
80	USGS map servers
74	climate change
70	mineral resources
64	topographic maps
63	water quality
63	contamination and pollution
61	energy resources
58	ground water
55	tectonic processes
48	remote sensing
47	surface water (non-marine)
47	droughts
46	floods
40	avian influenza
36	geologic maps
35	animals
34	geospatial analysis
30	acid deposition
29	water resources
29	invasive species
28	earthquake probabilities
28	human impacts
27	health and disease
25	fires
25	environmental health (human)
20	seismology
19	volcanic activity
18	desert ecosystems
17	earth structure
16	oil resources
16	global warming
15	erosion
15	tsunamis
14	snow and ice cover
14	global change

Science Topics term usage Tuesday, 2009-01-13