USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2009-05-31

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

Scripts used

1322science
179combine
43kwic

Browse terms chosen

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

239earthquakes
119earthquake occurrences
85volcanoes
63real-time monitoring and reporting
58maps and atlases
30climate change
28USGS map servers
19invasive species
19floods
19topographic maps
18mineral resources
18remote sensing
18water quality
17energy resources
16contamination and pollution
15droughts
15surface water (non-marine)
13ground water
13geospatial analysis
12avian influenza
11earthquake probabilities
11geologic maps
10radiometric dating
9earth structure
9environmental health (human)
9acid deposition
7human impacts
7geographic information systems (GIS)
7fires
6igneous rocks
6geophysics
5hyperspectral imaging
5global change
5USGS budget
5USGS maps on demand
5geologic history
5endangered species
5river systems
5desert ecosystems
5oil resources

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Thursday, 04-Jun-2009 11:35:32 EDT