Science Topics term usage 2007-05-06

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.)

118	river systems
62	geographic information systems (GIS)
37	earthquakes
36	volcanoes
17	stream discharge
17	earthquake occurrences
13	energy resources
13	acid deposition
12	human impacts
12	climate change
12	contamination and pollution
11	ocean characteristics
11	floods
11	animals
11	surface water (non-marine)
10	global warming
10	endangered species
10	earth structure
10	mineral resources
9	rocks and deposits
9	health and disease
9	volcanic features
9	hydrology
9	geospatial datasets
9	maps and atlases
9	streamflow
9	magnetic field (earth)
9	tectonic processes
9	geologic structure
9	tornadoes
8	plants (organisms)
8	volcanic activity
8	precipitation (atmospheric)
8	real-time monitoring and reporting
7	topography
7	vertebrates
7	stream-gage measurement
7	hurricanes
7	erosion
7	freshwater ecosystems

Science Topics term usage Sunday, 2007-05-06