Science Topics term usage 2008-01-11

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.)

65	geographic information systems (GIS)
62	earthquakes
42	overfishing
38	volcanoes
20	acid deposition
19	radiometric dating
18	earth structure
16	earthquake occurrences
16	real-time monitoring and reporting
15	river systems
15	human impacts
15	health and disease
14	mineral resources
12	tectonic processes
12	floods
12	climate change
12	energy resources
11	contamination and pollution
10	desert ecosystems
10	USGS Quadrangles
10	sediment transport
10	water quality
10	water resources
10	volcanic activity
10	oil resources
10	land surface characteristics
9	aquatic ecosystems
9	grassland ecosystems
9	water cycle
9	impact cratering
9	ground-water quality
9	animals
9	hurricanes
8	land use change
8	marine geology
8	rocks and deposits
8	ocean characteristics
8	hydrology
8	core (earth)
8	endangered species

Science Topics term usage Friday, 2008-01-11