USGS - science for a changing world

Science Topics

Science Topics term usage Monday, 2007-03-05

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

Scripts used

2117science
176kwic
97combine

Browse terms chosen

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

99geographic information systems (GIS)
98earthquakes
77volcanoes
74well drilling
30acid deposition
28tsunamis
27floods
26maps and atlases
25tectonic processes
22hurricanes
22earth structure
20fires
19earthquake occurrences
19energy resources
18erosion
18statistical analysis
18ground-water flow
17water supply and demand
17rocks and deposits
17sediment transport
16ground water
15mineral resources
15endangered species
15drilling and coring
15global change
15precipitation (atmospheric)
15oil resources
14climate change
14river systems
14coastal zones
14landslides
13human impacts
13contamination and pollution
13geologic history
13health and disease
12surface water (non-marine)
12streamflow
11land use and land cover
11plants (organisms)
11cartography

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:55 EDT