USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2007-04-28

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

Scripts used

1273science
117combine
88kwic

Browse terms chosen

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

116river systems
93earthquakes
70geographic information systems (GIS)
42earthquake occurrences
33volcanoes
16earth structure
13tectonic processes
12stream discharge
12maps and atlases
12seismology
9climate change
9industrial pollution
9acid deposition
9map coordinate systems
7freshwater ecosystems
7volcanic activity
7earthquake probabilities
7cartography
7real-time monitoring and reporting
7global warming
7erosion
7mineral resources
6tsunamis
6aquatic ecosystems
6rocks and deposits
6hydrology
6ground water
6ecosystems
6geospatial datasets
6glaciation
6ground-water flow
6geography
6geolocation measurement
5water resources
5coastal zones
5animals
5earth characteristics
5ocean characteristics
5landslides
5floods

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:56 EDT