Science Topics term usage 2007-09-15

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.)

55	earthquakes
49	volcanoes
45	geographic information systems (GIS)
26	mass spectroscopy
25	earthquake occurrences
24	tectonic processes
21	earth structure
19	floods
17	ground water
17	rocks and deposits
16	climate change
15	contamination and pollution
15	aquatic ecosystems
14	coelenterates
14	real-time monitoring and reporting
12	ground-water flow
12	topography
11	human impacts
11	water circulation
11	ocean characteristics
11	remote sensing
11	sedimentation
11	geologic history
11	tsunamis
10	hurricanes
10	planetary bodies
10	plants (organisms)
10	maps and atlases
10	water quality
10	magnetic field (earth)
10	fires
10	volcanic activity
10	impact cratering
10	meteorites
10	ground-water quality
9	water resources
9	acid deposition
9	sediment transport
9	droughts
9	snow and ice cover

Science Topics term usage Saturday, 2007-09-15