Science Topics term usage 2006-03-09

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.)

231	earthquakes
201	volcanoes
76	earthquake occurrences
66	geographic information systems (GIS)
52	energy resources
39	earth structure
32	tectonic processes
31	remote sensing
30	ground water
29	planetary bodies
28	streamflow
27	tsunamis
27	rocks and deposits
26	landslides
26	mineral resources
25	animals
25	climate change
24	acid deposition
24	snow and ice cover
24	surface water (non-marine)
24	water quality
23	contamination and pollution
23	water resources
23	oil resources
22	earth sciences
22	erosion
21	aerial photography
20	geologic structure
19	meteorites
19	sediment transport
19	hazards
19	ocean characteristics
18	land surface characteristics
17	maps and atlases
17	glaciation
17	geologic history
17	magnetic field (earth)
17	precipitation (atmospheric)
17	droughts
17	plants (organisms)

Science Topics term usage Thursday, 2006-03-09