USGS - science for a changing world

Science Topics

Science Topics term usage Wednesday, 2009-06-24

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

Scripts used

2318science
260combine
67kwic

Browse terms chosen

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

376earthquakes
169earthquake occurrences
135volcanoes
135maps and atlases
93real-time monitoring and reporting
67topographic maps
56USGS map servers
49mineral resources
42climate change
40surface water (non-marine)
40energy resources
32ground water
30remote sensing
30water quality
28geologic maps
26contamination and pollution
26geospatial analysis
25droughts
25floods
24environmental health (human)
24invasive species
16fires
14avian influenza
12earth structure
12oil resources
11agricultural regions
10surface water quality
9earthquake probabilities
9health and disease
8acid deposition
8natural gas resources
8seismology
7pesticide and herbicide contamination
7volcanic activity
6topics
6human impacts
6aerial photography
6topography
6California
6global change

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Monday, 29-Jun-2009 09:18:41 EDT