USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2007-07-07

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

Scripts used

1385science
186kwic
28combine

Browse terms chosen

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

53geographic information systems (GIS)
35plants (organisms)
24earthquakes
15volcanoes
13earth structure
13rocks and deposits
12abandoned mines and quarries
11snow and ice cover
11animals
11earthquake occurrences
11climate change
10floods
10map coordinate systems
10health and disease
9water properties
9mineral resources
9acid deposition
9natural gas resources
8vegetation
8cartography
8forest ecosystems
8water circulation
8desert ecosystems
7flowering plants
7droughts
7geologic history
7streamflow
7ecosystems
7aerial photography
7energy resources
7tectonic processes
7geologic structure
7mathematical modeling
7maps and atlases
7ocean characteristics
7topography
6sea-level change
6real-time monitoring and reporting
6land surface characteristics
6ocean temperature

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:57 EDT