Science Topics term usage 2006-09-03

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.)

98	seismology
49	earthquakes
45	volcanoes
42	earthquake occurrences
37	geographic information systems (GIS)
30	water quality
23	tectonic processes
22	climate change
21	acid deposition
15	earth structure
14	water supply and demand
14	maps and atlases
13	ground water
13	human impacts
13	animals
12	surface water (non-marine)
12	contamination and pollution
12	mineral resources
12	erosion
12	global change
12	gravitational field (earth)
11	paleoseismology
11	information system design and development
11	geologic history
10	structural geology
10	cartography
10	land subsidence
10	health and disease
10	ground-water flow
10	recreation
10	tsunamis
10	planetary bodies
9	seismic refraction method
9	aerial photography
9	paleontology
9	global warming
9	topics
9	precipitation (atmospheric)
9	tectonophysics
9	water properties

Science Topics term usage Sunday, 2006-09-03