USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2009-06-13

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

Scripts used

1644science
196combine
78kwic

Browse terms chosen

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

257earthquakes
120earthquake occurrences
89volcanoes
76maps and atlases
58real-time monitoring and reporting
36USGS map servers
34floods
32ground water
31topographic maps
30climate change
30mineral resources
26water quality
26surface water (non-marine)
25remote sensing
24energy resources
22droughts
21invasive species
20avian influenza
20geospatial analysis
19environmental health (human)
19contamination and pollution
13geologic maps
11fires
11seismology
8snow and ice cover
7desert ecosystems
7ground-water quality
7USGS budget
6health and disease
6river systems
6tectonic processes
5oil resources
5water supply and demand
5hydrology
4domestic water use
4geothermal resources
4forest ecosystems
4magnetic field (earth)
4acid deposition
4geographic information systems (GIS)

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Wednesday, 17-Jun-2009 11:34:25 EDT