Science Topics term usage 2007-06-01

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.)

72	geographic information systems (GIS)
48	earthquakes
41	geophysics
38	volcanoes
23	stream-gage measurement
21	mining and quarrying
20	earth structure
15	earthquake occurrences
15	rocks and deposits
14	energy resources
13	hazards
12	acid deposition
12	sediment transport
12	tsunamis
12	droughts
12	climate change
12	magnetic field (earth)
11	geologic history
11	ocean characteristics
11	oil resources
11	global warming
11	aerial photography
10	camera calibration
10	mineral resources
10	ground water
10	real-time monitoring and reporting
10	topography
10	endangered species
10	contamination and pollution
10	floods
10	streamflow
10	water quality
9	erosion
9	hurricanes
9	sea-level change
9	marine ecosystems
9	global change
9	tectonic processes
9	animals
9	biodiversity

Science Topics term usage Friday, 2007-06-01