Science Topics term usage 2007-01-24

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.)

158	geographic information systems (GIS)
99	volcanoes
99	earthquakes
82	stream-gage measurement
37	earthquake occurrences
34	mineral resources
30	tectonic processes
30	maps and atlases
26	acid deposition
26	streamflow
26	human impacts
25	earth structure
24	energy resources
24	inland fishery resources
23	climate change
21	animals
21	ground water
19	water quality
18	rocks and deposits
18	contamination and pollution
17	aerial photography
17	hydrology
17	landslides
17	map coordinate systems
17	tsunamis
17	geospatial datasets
16	ground-water flow
16	water supply and demand
15	hazards
15	water properties
15	global warming
14	magnetic field (earth)
14	wildlife
13	volcanic activity
12	health and disease
12	erosion
12	remote sensing
12	geologic structure
12	ocean characteristics
12	population and community ecology

Science Topics term usage Wednesday, 2007-01-24