USGS - science for a changing world

Science Topics

Science Topics term usage Friday, 2008-02-08

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

Scripts used

3441science
206combine
187kwic

Browse terms chosen

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

69ocean circulation
61geographic information systems (GIS)
55earthquakes
48volcanoes
43United States
37human impacts
28animals
25earthquake occurrences
24earth structure
23erosion
21power generation water use
19water resources
19life sciences
19geochemistry
19climate change
19geologic history
18acid deposition
18natural resources
17surface water (non-marine)
17land use and land cover
15aquatic ecosystems
15ground water
15geology
15water quality
15mineral resources
15gravitational field (earth)
14water properties
14earth characteristics
14tectonic processes
14river systems
14floods
14geologic processes
14contamination and pollution
14global warming
13rocks and deposits
13remote sensing
13marine geology
13ocean currents
13magnetic field (earth)
13waste treatment and disposal

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:35:00 EDT