USGS - science for a changing world

Science Topics

Science Topics term usage Wednesday, 2009-07-29

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

Scripts used

2551science
288combine
129kwic

Browse terms chosen

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

384earthquakes
157earthquake occurrences
116maps and atlases
86volcanoes
71real-time monitoring and reporting
57ground water
55energy resources
49map interfaces
48water quality
48climate change
45topographic maps
43mineral resources
38contamination and pollution
36surface water (non-marine)
35remote sensing
32floods
30droughts
30invasive species
29geospatial analysis
26environmental health (human)
22fires
20avian influenza
17geologic maps
17oil resources
13seismology
13earthquake probabilities
12ground-water flow
11land use and land cover
10aerial photography
9human impacts
9coal resources
9global warming
8soil resources
8global change
8hurricanes
8river systems
8ground-water level
7erosion
7geologic processes
7ground-water quality

KWIC index letters chosen

bar graph showing usage of each letter

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