Science Topics term usage 2007-05-26

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.)

40	volcanoes
35	well drilling
31	geographic information systems (GIS)
28	earthquakes
12	ecological competition
10	natural gas resources
10	rocks and deposits
10	ground-water flow
10	climate change
10	acid deposition
9	earthquake occurrences
9	aerial photography
9	ground water
8	animals
8	drainage basins
7	vertebrates
7	California
7	earth structure
7	water quality
7	geospatial datasets
7	field methods
7	mineral resources
7	invertebrates
6	streamflow
6	global change
6	volcanic activity
6	desert ecosystems
6	streams
6	tectonic processes
5	water sampling
5	earth history
5	global warming
5	administrative and political boundaries
5	sea-floor characteristics
5	energy resources
5	geologic history
5	coal resources
5	real-time monitoring and reporting
5	waste treatment and disposal
5	river systems

Science Topics term usage Saturday, 2007-05-26