Science Topics term usage 2007-08-12

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.)

40	geographic information systems (GIS)
34	earthquakes
30	volcanoes
21	plants (organisms)
17	earthquake occurrences
15	earth structure
14	infrared imaging
10	real-time monitoring and reporting
9	climate change
9	geochemistry
9	magnetic field (earth)
9	geophysics
8	endangered species
8	hurricanes
8	mineral resources
8	geologic history
8	water chemistry
8	desert ecosystems
8	tectonic processes
7	marine geology
7	volcanic activity
7	acid deposition
7	rocks and deposits
7	human impacts
6	sea-floor characteristics
6	mathematical modeling
6	impact cratering
6	energy resources
6	aerial photography
6	animals
6	waste treatment and disposal
6	global change
6	hazards
5	global warming
5	surface water quality
5	soil resources
5	mantle (earth)
5	crust (earth)
5	contamination and pollution
5	flowering plants

Science Topics term usage Sunday, 2007-08-12