USGS - science for a changing world

Science Topics

Science Topics term usage 2008-01

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

Scripts used

53016science
5165kwic
4474combine

Browse terms chosen

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

1701geographic information systems (GIS)
1449earthquakes
1188volcanoes
538earthquake occurrences
520earth structure
501acid deposition
410climate change
377animals
357contamination and pollution
353human impacts
349real-time monitoring and reporting
334floods
329river systems
327rocks and deposits
319water quality
315mineral resources
306ground water
306tectonic processes
302ground-water flow
300energy resources
297geologic history
281erosion
279health and disease
270endangered species
267global warming
262aquatic ecosystems
259desert ecosystems
249maps and atlases
245tsunamis
242land use and land cover
238aerial photography
235global change
232invasive species
227sediment transport
226plants (organisms)
225precipitation (atmospheric)
218geochemistry
218ocean characteristics
216water resources
213oil resources

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:35:00 EDT