USGS - science for a changing world

Science Topics

Science Topics term usage Friday, 2007-09-07

This analysis excludes the activity of search-engine spiders, USGS users, and transactions resulting in errors.

Scripts used

1686science
157kwic
94combine

Browse terms chosen

(Table shows only the 40 most frequently chosen terms.)

95geographic information systems (GIS)
52volcanoes
51earthquakes
48ocean processes
20acid deposition
19freshwater ecosystems
19climate change
19volcanic activity
19animals
18earth structure
17ground water
17health and disease
15earthquake occurrences
14ecosystems
14hurricanes
13mineral resources
12marine geology
11ground-water flow
11life sciences
11real-time monitoring and reporting
11contamination and pollution
11scientific careers
11global change
11water supply and demand
11streamflow
10endangered species
10rocks and deposits
10aerial photography
10fires
10tsunamis
9aquatic ecosystems
9water resources
9water use
9natural gas resources
9marine geophysics
9biodiversity
9tectonic processes
9ocean characteristics
8energy resources
8topics

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:58 EDT