Science Topics term usage 2007-03-07

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.)

114	geographic information systems (GIS)
113	earthquakes
98	volcanoes
56	long-term ecological monitoring
40	earthquake occurrences
34	earth structure
30	igneous rocks
27	animals
26	tectonic processes
23	acid deposition
22	contamination and pollution
22	erosion
21	rocks and deposits
21	climate change
20	ecosystems
20	global warming
19	landslides
17	mineral resources
17	geologic history
16	global change
16	tsunamis
15	meteorites
15	ground water
15	water cycle
15	real-time monitoring and reporting
15	streamflow
14	desert ecosystems
14	oil resources
14	water quality
14	energy resources
14	human impacts
14	floods
13	ground-water flow
13	map coordinate systems
13	hydrology
12	core (earth)
12	surface water (non-marine)
12	topography
12	land use and land cover
12	biogeography

Science Topics term usage Wednesday, 2007-03-07