Science Topics term usage 2007-01-01

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

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

58	geographic information systems (GIS)
43	hydrologic processes
42	volcanic eruption prediction
32	earthquakes
19	volcanoes
13	maps and atlases
11	streamflow
10	producers (organisms)
9	geologic history
9	floods
9	runoff
8	acid deposition
8	magnetic field (earth)
8	remote sensing
7	earthquake occurrences
7	geologic structure
7	planetary bodies
7	tectonic processes
7	birds
7	volcanic activity
6	mine sites
6	climate change
5	scour
5	aerial photography
5	ocean temperature
5	tsunamis
5	water cycle
5	animals
5	water chemistry
5	earth structure
4	seismic refraction method
4	cartography
4	topography
4	map coordinate systems
4	topics
4	ecology
4	snow and ice cover
4	stream-gage measurement
4	water temperature
4	geology

Science Topics term usage Monday, 2007-01-01