Science Topics term usage 2005-12-09

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.)

253	earthquakes
156	volcanoes
86	earthquake occurrences
56	tectonic processes
52	geographic information systems (GIS)
46	maps and atlases
34	earth structure
27	human impacts
25	mineral resources
25	energy resources
24	geologic history
24	seismology
24	landslides
23	contamination and pollution
22	ground water
21	ocean characteristics
20	real-time monitoring and reporting
20	animals
19	tsunamis
19	climate change
18	earthquake probabilities
18	acid deposition
17	water quality
17	surface water (non-marine)
17	remote sensing
17	streamflow
16	aerial photography
15	rocks and deposits
15	image collections
15	water resources
14	planetary bodies
14	magnetic field (earth)
14	invasive species
14	geologic structure
14	mining hazards
13	oil resources
13	coastal zones
12	natural resources
12	hydrology
12	snow and ice cover

Science Topics term usage Friday, 2005-12-09