Science Topics term usage 2007-12-07

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.)

68	earthquakes
55	geographic information systems (GIS)
53	ocean waves
31	volcanoes
24	earthquake occurrences
20	energy resources
20	acid deposition
19	contamination and pollution
18	water quality
17	tsunamis
17	earth structure
16	remote sensing
15	human impacts
15	roadways
15	climate change
15	animals
14	magnetic field (earth)
13	water supply and demand
13	ground water
13	global warming
13	aerial photography
13	streamflow
12	land use and land cover
12	floods
12	water use
11	plants (organisms)
11	USGS Quadrangles
11	invasive species
11	biodiversity
11	geospatial analysis
11	ocean characteristics
11	endangered species
10	landslides
10	rocks and deposits
10	pesticide and herbicide contamination
10	maps and atlases
9	volcanic activity
9	surface water (non-marine)
9	cartography
9	mineral resources

Science Topics term usage Friday, 2007-12-07