USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2007-07-08

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

Scripts used

1314science
110kwic
29combine

Browse terms chosen

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

64geographic information systems (GIS)
33greenhouse gases
25earthquakes
12climate change
12earth structure
11volcanoes
10acid deposition
9streamflow
8mineral resources
8aerial photography
8plants (organisms)
8industrial pollution
8river systems
8cartography
8earthquake occurrences
8invasive species
7topography
7earth characteristics
7greenhouse effect
7hazards
7sea-floor characteristics
7map coordinate systems
7aquifers
7crust (earth)
7global warming
7tectonic processes
7rocks and deposits
6magnetic field (earth)
6hurricanes
6information system design and development
6floods
6scour
6geologic structure
6earth history
6landslides
6fire control
6contamination and pollution
6human impacts
6ground-water level
6real-time monitoring and reporting

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