USGS - science for a changing world

Science Topics

Science Topics term usage Thursday, 2009-06-25

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

Scripts used

1878science
250combine
40kwic

Browse terms chosen

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

331earthquakes
153earthquake occurrences
128volcanoes
96maps and atlases
70real-time monitoring and reporting
53USGS map servers
39energy resources
37contamination and pollution
37mineral resources
36topographic maps
35climate change
30ground water
28surface water (non-marine)
26geospatial analysis
26water quality
23floods
21geologic maps
21remote sensing
21avian influenza
19droughts
16invasive species
15environmental health (human)
12oil resources
9land use and land cover
9fires
8rocks and deposits
7human impacts
7ground-water quality
7transect sampling
7hydrogeology
7ground-water flow
7hydrology
7streamflow
6river systems
6acid deposition
6surface water quality
6desert ecosystems
6earthquake probabilities
6geologic structure
6soil resources

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Monday, 29-Jun-2009 09:19:22 EDT