USGS - science for a changing world

Science Topics

Science Topics term usage Friday, 2009-03-13

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

Scripts used

6194science
774combine
210kwic

Browse terms chosen

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

1036earthquakes
474volcanoes
406earthquake occurrences
246real-time monitoring and reporting
234maps and atlases
134USGS map servers
128climate change
126energy resources
118mineral resources
112floods
106water quality
106surface water (non-marine)
102droughts
82ground water
80topographic maps
74remote sensing
68invasive species
68geospatial analysis
68contamination and pollution
60avian influenza
50oil resources
48fires
40environmental health (human)
38volcanic activity
28river systems
28health and disease
26geologic maps
26ground-water flow
24ocean characteristics
24USGS budget
24global warming
22surface-water level
22acid deposition
22natural gas resources
20endangered species
20earthquake probabilities
18ground-water quality
18mathematical modeling
18human impacts
16animals

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Tuesday, 17-Mar-2009 09:10:11 EDT