Science Topics term usage 2007-12-06

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.)

63	earthquakes
55	volcanoes
45	geographic information systems (GIS)
31	global warming
24	roadways
23	acid deposition
23	climate change
20	human impacts
19	tectonic processes
19	health and disease
17	earthquake occurrences
16	tsunamis
16	erosion
16	earth structure
16	water supply and demand
15	contamination and pollution
15	ground-water flow
15	animals
14	stream-gage measurement
13	endangered species
13	sediment transport
13	floods
11	ground water
11	energy resources
11	desert ecosystems
10	rocks and deposits
10	geologic structure
10	glaciation
10	lakes
9	geologic history
8	outer core (earth)
8	water cycle
8	mathematical modeling
8	hurricanes
8	earthquake probabilities
8	water properties
8	land surface characteristics
8	social sciences
8	USGS data downloading
8	real-time monitoring and reporting

Science Topics term usage Thursday, 2007-12-06