Science Topics term usage 2007-09-28

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.)

96	earthquakes
75	geographic information systems (GIS)
62	volcanoes
46	earthquake occurrences
43	natural resource exploration
29	acid deposition
23	wetlands
23	earth structure
22	real-time monitoring and reporting
18	tsunamis
17	geologic structure
16	ground water
16	animals
16	climate change
15	land use and land cover
15	oil resources
14	water quality
14	mineral resources
14	hurricanes
14	human impacts
13	erosion
13	rocks and deposits
13	water properties
12	tectonic processes
12	energy resources
12	streamflow
11	grassland ecosystems
11	droughts
11	snow and ice cover
11	endangered species
10	planetary sciences
10	global warming
10	magnetic field (earth)
10	plants (organisms)
10	remote sensing
10	sediment transport
10	contamination and pollution
10	desert ecosystems
10	mathematical modeling
10	ocean characteristics

Science Topics term usage Friday, 2007-09-28