USGS - science for a changing world

Science Topics

Science Topics term usage Sunday, 2007-03-11

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

Scripts used

989science
78kwic
45combine

Browse terms chosen

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

66volcanoes
58geographic information systems (GIS)
53earthquakes
21earth structure
19ground water
15maps and atlases
15earthquake occurrences
13acid deposition
13invertebrate zoology
12climate change
11tectonic processes
10animals
10mineral resources
9landslides
9rocks and deposits
9hazards
8agricultural sites
8contamination and pollution
8hydrogeology
8topography
8tsunamis
7flowering plants
7oil resources
7rivers
7volcanic activity
6geologic structure
6geologic history
6aerial photography
6health and disease
6ocean characteristics
6water resources
6energy resources
6global warming
6map coordinate systems
6invasive species
5mining hazards
5mountains
5field methods
5hurricanes
5coastal zones

KWIC index letters chosen

bar graph showing usage of each letter

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Page Last Modified: Friday, 25-Apr-2008 17:34:55 EDT