USGS - science for a changing world

Science Topics

Science Topics term usage Saturday, 2005-10-08

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

Scripts used

2251science
864combine
130kwic

Browse terms chosen

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

377earthquakes
141earthquake occurrences
90real-time monitoring and reporting
68geographic information systems (GIS)
64maps and atlases
60volcanoes
38tectonic processes
30earthquake probabilities
28seismology
23earth structure
22surface water (non-marine)
20streamflow
20hazards
19storms
18floods
18magnetic field (earth)
17ecosystems
16oil resources
15rocks and deposits
15geologic structure
14energy resources
14water resources
13mineral resources
13meteorites
13geography
13animals
12water quality
12ocean characteristics
12hydrology
12seismic methods
12ground water
12contamination and pollution
11ground-water flow
11water supply and demand
11outer core (earth)
11invasive species
11droughts
10human impacts
10erosion
9coastal zones

KWIC index letters chosen

bar graph showing usage of each letter

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