USGS - science for a changing world

Science Topics

Science Topics term usage Monday, 2005-09-12

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

Scripts used

2810science
291combine
199kwic

Browse terms chosen

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

132earthquakes
98volcanoes
56geographic information systems (GIS)
40tectonic processes
39earthquake occurrences
35earth structure
34energy resources
33animals
32ground-water flow
31maps and atlases
27aerial photography
25ground water
24storms
23oil resources
23floods
23rocks and deposits
22mineral resources
21contamination and pollution
21water quality
21coastal zones
20wildlife
19surface water (non-marine)
19life sciences
19hurricanes
19geologic structure
18tsunamis
18magnetic field (earth)
18geography
17planetary bodies
17fires
17ecological processes
16endangered species
16atmospheric and climatic processes
16volcanic activity
16climate change
16health and disease
16ocean characteristics
16hazards
16invasive species
16plants (organisms)

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:47 EDT