Science Topics term usage 2006-12-08

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.)

97	geographic information systems (GIS)
97	earthquakes
87	volcanoes
50	paleoceanography
30	tectonic processes
28	earthquake occurrences
22	maps and atlases
20	acid deposition
17	ground-water flow
17	tsunamis
17	earth structure
16	atmospheric deposition (chemical & particulate)
14	water quality
14	endangered species
14	ground water
14	topography
14	global warming
14	floods
13	climate change
13	oil resources
12	animals
12	mineral resources
11	landslides
11	volcanic activity
11	map coordinate systems
11	remote sensing
10	snow and ice cover
10	surface water (non-marine)
10	magnetic field (earth)
10	erosion
10	invasive species
10	hurricanes
10	global change
10	seismology
10	water supply and demand
9	human impacts
9	aerial photography
9	USGS Quadrangles
9	crust (earth)
9	water resources

Science Topics term usage Friday, 2006-12-08