Science Topics term usage 2006-10-12

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.)

90	earthquakes
78	volcanoes
60	runoff
58	geographic information systems (GIS)
33	tectonic processes
28	contamination and pollution
28	earth structure
26	acid deposition
22	energy resources
22	earthquake occurrences
22	climate change
19	geologic history
19	erosion
19	water quality
17	mineral resources
17	animals
16	floods
16	geologic structure
15	rocks and deposits
15	real-time monitoring and reporting
15	water use
15	ground water
14	sea-floor characteristics
14	global warming
14	human impacts
13	coastal zones
13	surface water (non-marine)
13	field methods
13	hurricanes
12	snow and ice cover
12	streamflow
12	water chemistry
12	health and disease
12	invasive species
12	metallic ores
11	water supply and demand
11	aerial photography
11	tsunamis
11	oil resources
10	precipitation (atmospheric)

Science Topics term usage Thursday, 2006-10-12