USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2006-12-09

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

Scripts used

939science
95kwic
42combine

Browse terms chosen

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

73geographic information systems (GIS)
50bedrock geologic units
39earthquakes
31volcanoes
17paleoceanography
16erosion
14earthquake occurrences
12earth structure
12geochemistry
12tectonic processes
11rocks and deposits
11remote sensing
10cartography
9map coordinate systems
9maps and atlases
8water quality
8tsunamis
8floods
8snow and ice cover
7precipitation (atmospheric)
6aerial photography
6ground water
6ecosystems
6desertification
6climate change
6endangered species
5coelenterates
5seismology
5sediment transport
5mineral resources
5volcanic activity
5geomorphology
4acid deposition
4hurricanes
4fish
4global change
4volcanic eruption prediction
4mammals
4industrial pollution
4geospatial datasets

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:54 EDT