USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2009-04-12

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

Scripts used

1663science
263combine
57kwic

Browse terms chosen

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

354earthquakes
182volcanoes
150earthquake occurrences
72maps and atlases
51real-time monitoring and reporting
31mineral resources
31climate change
30topographic maps
29USGS map servers
22earthquake probabilities
22energy resources
21droughts
20avian influenza
20floods
18contamination and pollution
17water quality
16surface water (non-marine)
15ground water
13environmental health (human)
13fires
13geospatial analysis
12geologic maps
12remote sensing
9river systems
9seismology
9invasive species
8seismic methods
8oil resources
7health and disease
7aquatic ecosystems
7global warming
7volcanic activity
7acid deposition
7animals
6ground-water quality
6endangered species
6USGS maps on demand
6water supply and demand
5geologic history
5geographic information systems (GIS)

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Thursday, 16-Apr-2009 09:13:27 EDT