USGS - science for a changing world

Science Topics

Science Topics term usage Thursday, 2008-01-03

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

Scripts used

1580science
149combine
149kwic

Browse terms chosen

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

47geographic information systems (GIS)
41dam sites
37earthquakes
35volcanoes
30earthquake occurrences
19mining hazards
17real-time monitoring and reporting
15acid deposition
15animals
15earth structure
14endangered species
13geologic history
12contamination and pollution
12floods
11ground water
11mineral resources
11human impacts
10precipitation (atmospheric)
10ground-water flow
9water quality
9health and disease
9aerial photography
9gravitational field (earth)
9geologic structure
9climate change
8tsunamis
8land use and land cover
8surficial geologic units
8impact cratering
8core (earth)
8hazards
8maps and atlases
8geochemistry
7rocks and deposits
7atmospheric circulation
7glaciation
7water chemistry
7biodiversity
7planetary bodies
7geography

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