USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2009-04-05

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

Scripts used

2720science
417combine
87kwic

Browse terms chosen

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

497earthquakes
268volcanoes
247earthquake occurrences
97maps and atlases
85real-time monitoring and reporting
47climate change
42floods
40USGS map servers
37remote sensing
34mineral resources
33topographic maps
33ground water
32geospatial analysis
26water quality
26surface water (non-marine)
25invasive species
24avian influenza
23earthquake probabilities
23energy resources
18seismology
18geologic maps
17contamination and pollution
16droughts
14environmental health (human)
13volcanic activity
12desert ecosystems
12global warming
11fires
11oil resources
10river systems
9biodiversity
9acid deposition
8USGS maps on demand
8health and disease
8geologic history
7pesticide and herbicide contamination
7rocks and deposits
7ground-water flow
7animals
7tectonic processes

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Thursday, 09-Apr-2009 16:15:07 EDT