Science Topics term usage 2007-05-28

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.)

137	volcanoes
54	geographic information systems (GIS)
50	earthquakes
36	field methods
32	sonar methods
23	earthquake occurrences
17	earth structure
17	tectonic processes
16	energy resources
13	marine geology
12	mineral resources
12	aquatic ecosystems
11	real-time monitoring and reporting
11	oil resources
11	stratigraphy
11	geologic history
10	acid deposition
10	natural gas resources
9	climate change
9	human impacts
9	volcanic eruption prediction
9	streamflow
8	coal resources
8	ground-water flow
8	side-scan sonar methods
8	ecosystems
8	animals
7	water quality
7	maps and atlases
7	water circulation
7	global warming
7	floods
7	earth history
7	aerial photography
7	estuarine ecosystems
7	coastal zones
6	river systems
6	topography
6	magnetic field (earth)
6	surface water (non-marine)

Science Topics term usage Monday, 2007-05-28