Science Topics term usage 2006-07-20

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.)

74	earthquakes
62	geographic information systems (GIS)
48	volcanoes
42	endemic species
21	tsunamis
18	surface water (non-marine)
16	statistical analysis
15	earthquake occurrences
15	ground water
15	ground-water flow
14	topography
14	climate change
13	tectonic processes
13	energy resources
12	aerial photography
12	mineral resources
11	land use and land cover
11	precipitation (atmospheric)
11	earth structure
11	streamflow
9	ocean processes
9	global change
9	water supply and demand
9	environmental assessment
9	animals
9	biodiversity
9	geography
9	erosion
8	stream-gage measurement
8	maps and atlases
8	water chemistry
8	wildlife
8	sediment transport
8	acid deposition
8	hazards
8	human impacts
8	real-time monitoring and reporting
8	planetary bodies
8	water resources
8	drainage basins

Science Topics term usage Thursday, 2006-07-20