Science Topics term usage 2008-01-15

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.)

67	volcanoes
61	geographic information systems (GIS)
47	earthquakes
28	nonvascular plants
22	acid deposition
20	earth structure
17	ground water
16	earthquake occurrences
16	mineral resources
16	animals
15	climate change
15	erosion
14	ground-water flow
14	tectonic processes
13	geologic structure
13	human impacts
13	geologic history
12	endangered species
12	soil sciences
12	precipitation (atmospheric)
11	plants (organisms)
11	river systems
11	energy resources
11	health and disease
11	water supply and demand
11	aerial photography
11	floods
10	ocean characteristics
10	maps and atlases
10	rocks and deposits
10	sediment transport
10	oil resources
9	global warming
9	land use and land cover
9	glaciation
9	water quality
8	aquatic ecosystems
8	streamflow
8	real-time monitoring and reporting
8	landslides

Science Topics term usage Tuesday, 2008-01-15