Science Topics term usage 2006-10-18

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.)

239	earthquakes
89	volcanoes
67	earthquake occurrences
62	tectonic processes
59	geographic information systems (GIS)
59	droughts
32	real-time monitoring and reporting
29	earth structure
27	erosion
24	acid deposition
23	contamination and pollution
22	mineral resources
22	earthquake probabilities
21	ocean waves
21	ground-water flow
20	animals
20	ground water
19	water quality
19	maps and atlases
17	water properties
17	cartography
17	energy resources
17	hazards
17	tsunamis
17	climate change
16	rocks and deposits
15	land use and land cover
14	streamflow
14	aerial photography
14	seismology
14	invasive species
14	precipitation (atmospheric)
13	geologic history
13	natural gas resources
13	landslides
13	water supply and demand
13	hydrology
12	geologic structure
12	sedimentary rocks
12	snow and ice cover

Science Topics term usage Wednesday, 2006-10-18