USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2007-11-03

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

Scripts used

940science
95combine
92kwic

Browse terms chosen

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

47geographic information systems (GIS)
37lithostratigraphy
36earthquakes
30volcanoes
16earthquake occurrences
12contamination and pollution
11real-time monitoring and reporting
10health and disease
10acid deposition
9ground water
8engineering sciences
8maps and atlases
8microbiology
8oil resources
8rocks and deposits
7aquatic ecosystems
7human impacts
7aerial photography
7earth structure
7water quality
7geologic structure
7animals
6ocean characteristics
6ocean temperature
6global warming
6desert ecosystems
6biodiversity
5climate change
5land use and land cover
5wildlife
5tsunamis
5sediment transport
5industrial pollution
5sea-floor characteristics
5energy resources
5water supply and demand
4water resources
4sedimentation
4hazards
4aquifers

KWIC index letters chosen

bar graph showing usage of each letter

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