Science Topics term usage 2006-09-22

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.)

69	volcanoes
69	earthquakes
44	geographic information systems (GIS)
36	bacteria
26	tectonic processes
23	ground water
23	health and disease
22	floods
22	geologic history
19	water quality
18	climate change
17	energy resources
17	tsunamis
17	ground-water flow
17	mathematical modeling
16	mineral resources
16	erosion
16	aerial photography
15	earthquake occurrences
15	earth structure
15	contamination and pollution
15	streamflow
15	maps and atlases
15	human impacts
14	ocean characteristics
13	endangered species
13	land use and land cover
13	plants (organisms)
13	global change
13	animals
12	rocks and deposits
12	acid deposition
12	planetary bodies
11	precipitation (atmospheric)
11	meteorites
11	topography
11	real-time monitoring and reporting
11	water use
11	biogeography
11	seismology

Science Topics term usage Friday, 2006-09-22