USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2005-04-23

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

Scripts used

1990science
219combine
165kwic

Browse terms chosen

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

118earthquakes
82geographic information systems (GIS)
65volcanoes
32earthquake occurrences
28tsunamis
25maps and atlases
24surface water (non-marine)
23streamflow
23geologic history
20climate change
19erosion
15rocks and deposits
15energy resources
14water quality
14earth structure
14tectonic processes
14map coordinate systems
13real-time monitoring and reporting
13ground water
13image collections
12hazards
11mineral resources
11aerial photography
11wildlife
11ground-water flow
11contamination and pollution
11seismology
10animals
10geomorphology
10cartography
10fires
10geography
10geologic processes
10geologic structure
10geospatial datasets
9computational methods
9GPS measurement
9geology
9sediment transport
9hydrology

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:45 EDT