USGS - science for a changing world

Science Topics

Science Topics term usage Friday, 2007-06-22

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

Scripts used

1393science
88kwic
62combine

Browse terms chosen

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

74geographic information systems (GIS)
40economic geology
37earthquakes
34streamflow
25earthquake occurrences
22volcanoes
21rocks and deposits
15mineral resources
15maps and atlases
14earth structure
12surface water (non-marine)
12gold ores
11ground water
10climate change
10ecosystems
10water resources
10population and community ecology
9map coordinate systems
9landslides
9sea-floor characteristics
9real-time monitoring and reporting
8animals
8water quality
8vertebrates
8energy resources
8land surface characteristics
8magnetic field (earth)
8hydrology
8hazards
8metallic ores
8oil resources
8human impacts
7seismology
7floods
7scientific software
7wetland ecosystems
6contamination and pollution
6coal resources
6impact cratering
6vegetation

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:57 EDT