USGS - science for a changing world

Science Topics

Science Topics term usage Monday, 2007-06-11

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

Scripts used

1470science
130kwic
59combine

Browse terms chosen

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

105geographic information systems (GIS)
60earthquakes
44volcanoes
30side-scan sonar methods
18maps and atlases
17mineral resources
17geochemistry
15earth structure
14social sciences
14stream-gage measurement
14rocks and deposits
13acid deposition
13earthquake occurrences
12climate change
12aerial photography
11ground water
11tectonic processes
11map coordinate systems
10energy resources
9water quality
9animals
9geologic history
9sediment transport
9streamflow
9industrial pollution
8desert ecosystems
8landslides
8water use
8geologic structure
8water chemistry
8drainage basins
7topography
7contamination and pollution
7magnetic field (earth)
7global warming
7ground-water flow
7oil resources
7geolocation measurement
7fires
7floods

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