Science Topics term usage 2009-01-22

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.)

1127	earthquakes
497	earthquake occurrences
211	volcanoes
178	maps and atlases
93	real-time monitoring and reporting
82	climate change
80	water quality
74	USGS map servers
74	topographic maps
67	ground water
63	energy resources
61	mineral resources
59	floods
53	surface water (non-marine)
51	remote sensing
51	contamination and pollution
48	avian influenza
43	droughts
43	invasive species
37	geospatial analysis
36	geologic maps
36	environmental health (human)
33	seismology
32	earthquake probabilities
29	animals
28	health and disease
22	fires
22	acid deposition
21	erosion
19	sediment transport
17	California
15	tectonic processes
15	human impacts
13	aquatic ecosystems
13	bathymetry
13	plants (organisms)
13	aerial photography
13	oil resources
13	endangered species
12	river systems

Science Topics term usage Thursday, 2009-01-22