Science Topics term usage 2008-02-07

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.)

106	geographic information systems (GIS)
74	earthquakes
70	volcanoes
43	United States
42	power generation water use
36	earthquake occurrences
28	human impacts
27	contamination and pollution
26	floods
25	erosion
24	aquatic ecosystems
23	water resources
21	real-time monitoring and reporting
20	remote sensing
20	climate change
20	life sciences
19	ground water
19	acid deposition
19	earth structure
19	sediment transport
18	geologic processes
18	health and disease
17	geologic structure
17	water quality
17	surface water (non-marine)
16	natural resources
15	global warming
15	mineral resources
15	geochemistry
14	water supply and demand
14	stream-gage measurement
14	ecosystems
14	organism groupings (non-taxonomic)
14	land use and land cover
13	geologic history
13	energy resources
13	ecosystem monitoring
13	rubidium-strontium analysis
13	global change
13	snow and ice cover

Science Topics term usage Thursday, 2008-02-07