USGS - science for a changing world

Science Topics

Science Topics term usage Thursday, 2007-07-12

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

Scripts used

1398science
189kwic
104combine

Browse terms chosen

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

73geographic information systems (GIS)
64earthquakes
35instream water use
28earthquake occurrences
26volcanoes
21floods
19contamination and pollution
18aerial photography
12animals
12acid deposition
12surface water (non-marine)
11maps and atlases
10streamflow
10droughts
10rocks and deposits
9shellfish
9oil resources
9mineral resources
9ground water
9real-time monitoring and reporting
9seismology
9bathymetry
9health and disease
9tectonic processes
9earth structure
8natural gas resources
8sea-floor characteristics
8water supply and demand
8hazards
8sediment transport
8land surface characteristics
8erosion
8climate change
8human impacts
8vegetation
7marine ecosystems
7water quality
7remote sensing
7water properties
7magnetic field (earth)

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