Science Topics term usage 2005-10-06

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.)

215	earthquakes
140	volcanoes
72	geographic information systems (GIS)
48	tectonic processes
45	maps and atlases
43	snow and ice cover
43	earthquake occurrences
38	surface water (non-marine)
34	energy resources
33	streamflow
32	landslides
30	aerial photography
29	rocks and deposits
29	earth structure
25	glaciation
24	climate change
24	geochemistry
24	image collections
23	hydrology
23	water quality
21	seismology
21	glaciology
21	magnetic field (earth)
20	animals
20	mineral resources
20	coastal zones
19	geologic history
19	cartography
19	invasive species
18	contamination and pollution
18	floods
17	geologic structure
17	water resources
17	planetary bodies
17	natural resources
16	hazards
16	ocean sciences
15	ecosystems
15	ground water
15	oil resources

Science Topics term usage Thursday, 2005-10-06