USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2008-02-16

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

Scripts used

1613science
150kwic
80combine

Browse terms chosen

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

47earthquakes
41geographic information systems (GIS)
25greenhouse gases
23volcanoes
19real-time monitoring and reporting
17earthquake occurrences
17core (earth)
16earth structure
13freshwater ecosystems
11droughts
10ocean characteristics
10human impacts
10volcanic eruption prediction
10aquatic ecosystems
10global warming
10rocks and deposits
10land use and land cover
9climate change
9geospatial analysis
9ocean salinity
9animals
9energy resources
8oil resources
8pesticide and herbicide contamination
8erosion
8aerial photography
7gravitational field (earth)
7endangered species
7greenhouse effect
7mineral resources
7health and disease
7ecosystems
7natural gas resources
7desert ecosystems
7ground-water quality
7marine ecosystems
7acid deposition
7tectonic processes
7geologic history
7water resources

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