USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2008-02-23

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

Scripts used

1572science
139kwic
115combine

Browse terms chosen

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

54geographic information systems (GIS)
51earthquakes
42nonvascular plants
23volcanoes
19earthquake occurrences
13maps and atlases
13real-time monitoring and reporting
12earth structure
11energy resources
11erosion
11tectonic processes
11acid deposition
10contamination and pollution
10floods
10geochemistry
10climate change
9aquatic ecosystems
9rocks and deposits
9ecosystems
9snow and ice cover
8earth characteristics
8geologic structure
8water supply and demand
8water cycle
7topics
7mineral resources
7geospatial analysis
7biostratigraphy
7tsunamis
7invasive species
7forest resources
7core (earth)
7liverworts and hornworts
7geologic history
7surface water (non-marine)
6ocean salinity
6bouguer anomaly
6ocean characteristics
6social sciences
6water properties

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:35:01 EDT