USGS - science for a changing world

Science Topics

Science Topics term usage Wednesday, 2008-04-23

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

Scripts used

5473science
985combine
176kwic

Browse terms chosen

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

1504earthquakes
833earthquake occurrences
179volcanoes
165maps and atlases
138real-time monitoring and reporting
97climate change
88energy resources
75floods
72surface water (non-marine)
72ground water
68USGS map servers
67water quality
58contamination and pollution
57earthquake probabilities
56mineral resources
54remote sensing
51seismology
49avian influenza
48geospatial analysis
43droughts
42invasive species
30fires
29environmental health (human)
25oil resources
24tectonic processes
23streamflow
22river systems
21acid deposition
21natural gas resources
18global warming
17human impacts
17earth structure
15volcanic activity
14ocean characteristics
14hazards
13sediment transport
13land use and land cover
12hydrology
12erosion
12desert ecosystems

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Monday, 28-Apr-2008 09:24:29 EDT