USGS - science for a changing world

Science Topics

Science Topics term usage Wednesday, 2007-07-04

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

Scripts used

1280science
109kwic
53combine

Browse terms chosen

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

75ground-water level
70geographic information systems (GIS)
34earthquakes
26volcanoes
21animals
14floods
13cartography
12ocean currents
11aquatic ecosystems
10river systems
10real-time monitoring and reporting
10mineral resources
9acid deposition
9tsunamis
9earth structure
9energy resources
8earthquake occurrences
8datasets
8stream-gage measurement
8land use and land cover
8aerial photography
8streamflow
8economic geology
7global warming
7rocks and deposits
7water supply and demand
7ground water
7geography
7climate change
7mining and quarrying
7water resources
7map coordinate systems
7field sampling
7natural gas resources
6natural resource exploration
6surface water (non-marine)
6invasive species
6human impacts
6topics
6magnetic field (earth)

KWIC index letters chosen

bar graph showing usage of each letter

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