USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2010-02-21

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

Scripts used

5214science
844combine
283kwic

Browse terms chosen

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

1162earthquakes
410earthquake occurrences
196volcanoes
133mineral resources
133maps and atlases
119real-time monitoring and reporting
87climate change
81ground water
77energy resources
71surface water (non-marine)
68water quality
68floods
64remote sensing
64map interfaces
57contamination and pollution
52seismology
46invasive species
46topographic maps
45geospatial analysis
43earthquake probabilities
38droughts
35environmental health (human)
34fires
30nonmetallic mineral resources
29metallic ores
29avian influenza
27geologic maps
24surface water quality
24volcanic activity
24tectonic processes
22global warming
21oil resources
19earth structure
18rocks and deposits
18California
18acid deposition
17natural resources
17earth sciences
15land use and land cover
14human impacts

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Tuesday, 23-Feb-2010 10:05:09 EST