Science Topics term usage 2007-09-22

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.)

48	geographic information systems (GIS)
47	natural resource exploration
39	earthquakes
25	volcanoes
17	global warming
16	global change
15	climate change
15	tectonic processes
15	earth structure
14	earthquake occurrences
13	rocks and deposits
11	mineral resources
11	coastal zones
11	habitats
10	real-time monitoring and reporting
9	streamflow
9	ecosystems
9	hurricanes
8	wildlife
8	human impacts
8	sea-level change
8	desert ecosystems
7	river systems
7	acid deposition
7	contamination and pollution
7	water quality
7	animals
7	topics
6	sediment transport
6	endangered species
6	vertebrates
6	industrial pollution
5	sedimentary rocks
5	tsunamis
5	gravitational field (earth)
5	stream-gage measurement
5	waste treatment and disposal
5	environmental assessment
5	energy resources
5	estuarine ecosystems

Science Topics term usage Saturday, 2007-09-22