USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2007-07-15

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

Scripts used

768science
113kwic
57combine

Browse terms chosen

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

34geographic information systems (GIS)
28animals
25earthquakes
13volcanoes
11biogeography
10earthquake occurrences
9ground-water flow
9human impacts
8climate change
8real-time monitoring and reporting
7geologic history
7land surface characteristics
7birds
7acid deposition
6energy resources
6aerial photography
6geophysics
6water resources
5mineral resources
5natural resource exploration
5floods
5wildlife
5maps and atlases
5magnetic field (earth)
5earth structure
5planetary bodies
5forest ecosystems
5coal resources
4water chemistry
4aquatic ecosystems
4ecosystems
4seismology
4rocks and deposits
4stream-gage measurement
4earth sciences
4desert ecosystems
4tectonic processes
4ground water
4cartography
4tsunamis

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:57 EDT