USGS - science for a changing world

Science Topics

Science Topics term usage Tuesday, 2009-08-11

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

Scripts used

7478science
1203combine
192kwic

Browse terms chosen

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

1540earthquakes
801earthquake occurrences
334volcanoes
297maps and atlases
213real-time monitoring and reporting
137topographic maps
133climate change
130mineral resources
128surface water (non-marine)
124energy resources
117ground water
112floods
98water quality
93droughts
89map interfaces
80remote sensing
78avian influenza
76geologic maps
76environmental health (human)
70earthquake probabilities
63geospatial analysis
60contamination and pollution
58seismology
57fires
56invasive species
39hydrogeology
35California
34river systems
33oil resources
31natural gas resources
28ground-water flow
28stream discharge
27volcanic activity
26hydrology
26global warming
25earth structure
24acid deposition
23streamflow
23rocks and deposits
20tectonic processes

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Thursday, 10-Sep-2009 11:50:15 EDT