Science Topics term usage 2007-03-02

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.)

408	earthquakes
161	geographic information systems (GIS)
85	earthquake occurrences
76	volcanoes
54	real-time monitoring and reporting
39	endemic species
37	ecological research sites
30	earth structure
24	water quality
23	acid deposition
23	aerial photography
23	climate change
22	tsunamis
22	ground water
21	maps and atlases
20	tectonic processes
20	rocks and deposits
19	geologic structure
19	endangered species
18	erosion
17	land use and land cover
15	landslides
14	mineral resources
14	animals
14	hurricanes
14	water resources
14	sediment transport
13	streamflow
13	global change
13	contamination and pollution
13	gravitational field (earth)
12	marine geology
12	global warming
12	snow and ice cover
12	coastal zones
12	river systems
12	aquatic ecosystems
11	planetary bodies
11	surface water (non-marine)
11	impact cratering

Science Topics term usage Friday, 2007-03-02