USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2007-08-25

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

Scripts used

1070science
66kwic
55combine

Browse terms chosen

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

41earthquakes
36geographic information systems (GIS)
21streamflow
21health and disease
18earth structure
17volcanoes
15earthquake occurrences
9desert ecosystems
8invasive species
8land use and land cover
8geologic history
8tectonic processes
7metamorphic rocks
7climate change
7rocks and deposits
7gravitational field (earth)
6water resources
6aerial photography
6glaciation
6animals
6geologic structure
6contamination and pollution
6mineral resources
6real-time monitoring and reporting
5tsunamis
5droughts
5acid deposition
5maps and atlases
5erosion
5industrial pollution
5stream-gage measurement
5energy resources
5ecological processes
5lithostratigraphy
5floods
5planetary bodies
5sediment transport
5fires
4photography
4volcanic activity

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:58 EDT