USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2007-10-28

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

Scripts used

1405science
167kwic
69combine

Browse terms chosen

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

46health and disease
43volcanoes
40earthquakes
33geographic information systems (GIS)
25earth structure
20parks
15acid deposition
14earthquake occurrences
14climate change
12mineral resources
10tectonic processes
10human impacts
10erosion
10animals
9droughts
9energy resources
9ground water
9sea-floor characteristics
8streamflow
8water supply and demand
8social sciences
8geologic history
8rocks and deposits
7crust (earth)
7global warming
7invasive species
7hurricanes
7core (earth)
7land surface characteristics
7maps and atlases
7ground-water flow
7marine geology
7fires
7tsunamis
7landslides
7land use change
7volcanic activity
7water chemistry
6precipitation (atmospheric)
6endangered species

KWIC index letters chosen

bar graph showing usage of each letter

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