Science Topics term usage 2006-02-22

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.)

224	volcanoes
204	earthquakes
106	geographic information systems (GIS)
65	earthquake occurrences
50	streamflow
45	tectonic processes
43	contamination and pollution
41	energy resources
41	mineral resources
39	earth structure
32	rocks and deposits
29	surface water (non-marine)
29	tsunamis
29	climate change
28	human impacts
28	acid deposition
28	maps and atlases
28	geologic history
27	animals
27	cartography
26	remote sensing
26	geologic structure
24	volcanic activity
23	aerial photography
22	geospatial datasets
22	ocean characteristics
22	landslides
21	water quality
21	ground-water flow
21	droughts
21	oil resources
20	water properties
20	health and disease
20	real-time monitoring and reporting
19	mathematical modeling
19	ground water
18	ecosystems
17	precipitation (atmospheric)
17	erosion
17	water supply and demand

Science Topics term usage Wednesday, 2006-02-22