Science Topics term usage 2007-09-16

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.)

59	volcanoes
54	geographic information systems (GIS)
54	earthquakes
44	power generation water use
42	tectonic processes
40	earth structure
17	acid deposition
15	climate change
12	health and disease
12	hurricanes
11	earthquake occurrences
11	rocks and deposits
10	real-time monitoring and reporting
10	mineral resources
10	endangered species
9	biodiversity
9	water supply and demand
9	geologic history
9	human impacts
8	mass spectroscopy
8	remote sensing
8	ocean characteristics
8	water quality
7	global change
7	streamflow
7	population and community ecology
7	plants (organisms)
7	rivers
7	oil resources
7	core (earth)
7	floods
7	impact cratering
7	ground-water flow
7	geologic structure
6	oxygen content (water)
6	desert ecosystems
6	river systems
6	landslides
6	planetary bodies
6	topography

Science Topics term usage Sunday, 2007-09-16