Science Topics term usage 2006-04-17

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.)

208	earthquakes
147	volcanoes
65	geographic information systems (GIS)
55	energy resources
46	tectonic processes
45	earthquake occurrences
36	mineral resources
33	earth structure
31	surface water (non-marine)
30	magnetic field (earth)
29	real-time monitoring and reporting
29	water quality
28	climate change
27	floods
25	landslides
25	geologic history
25	aerial photography
25	rocks and deposits
25	tsunamis
25	contamination and pollution
24	oil resources
24	ground water
23	seismology
23	erosion
23	geologic structure
22	earthquake probabilities
22	human impacts
21	coastal zones
20	water use
19	stream-gage measurement
18	invasive species
18	marine geology
18	maps and atlases
16	wildlife
15	remote sensing
15	acid deposition
15	animals
14	land surface characteristics
14	water resources
14	streamflow

Science Topics term usage Monday, 2006-04-17