USGS - science for a changing world

Science Topics

Science Topics term usage Thursday, 2008-07-24

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

Scripts used

2864science
473combine
72kwic

Browse terms chosen

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

521earthquakes
225earthquake occurrences
163maps and atlases
131volcanoes
120real-time monitoring and reporting
94energy resources
84USGS map servers
69ground water
59surface water (non-marine)
58climate change
58mineral resources
52floods
47geospatial analysis
44water quality
43droughts
39avian influenza
38oil resources
36remote sensing
30invasive species
30earthquake probabilities
28fires
26environmental health (human)
26contamination and pollution
17seismology
15river systems
14streamflow
13USGS maps on demand
10acid deposition
10hydrology
9ground-water flow
8stream discharge
8earth structure
8coal resources
7topics
7water resources
7USGS Quadrangles
6carbon isotope analysis
6climatology
6USGS data downloading
6hazards

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Monday, 28-Jul-2008 09:24:52 EDT