Science Topics term usage 2007-09-19

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
93	geographic information systems (GIS)
87	geophysics
45	volcanoes
34	earth structure
29	earthquake occurrences
25	acid deposition
23	geologic history
23	human impacts
23	rocks and deposits
22	tectonic processes
21	information system design and development
21	seismology
21	energy resources
20	streamflow
19	tsunamis
19	magnetic field (earth)
19	contamination and pollution
17	climate change
17	maps and atlases
15	real-time monitoring and reporting
15	erosion
14	mineral resources
14	animals
14	hurricanes
13	water quality
13	land use and land cover
12	ground-water flow
12	stream-gage measurement
12	plants (organisms)
11	health and disease
11	nonvascular plants
11	invasive species
11	marine geophysics
10	meteorites
10	geologic structure
10	water circulation
10	igneous rocks
10	global warming
10	endangered species

Science Topics term usage Wednesday, 2007-09-19