Science Topics term usage 2006-04-05

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.)

165	earthquakes
122	volcanoes
66	geographic information systems (GIS)
51	earthquake occurrences
43	ground water
39	tectonic processes
39	acid deposition
33	energy resources
32	animals
31	streamflow
28	floods
26	mineral resources
26	surface water (non-marine)
24	magnetic field (earth)
24	contamination and pollution
23	geologic history
23	earth structure
22	hazards
21	meteorites
21	rocks and deposits
20	ground-water flow
19	water resources
19	stream-gage measurement
19	aerial photography
19	landslides
19	tsunamis
19	real-time monitoring and reporting
17	invasive species
17	hydrology
17	wildlife
17	sediment transport
16	mining hazards
15	habitats
15	planetary bodies
15	ecosystems
15	erosion
15	climate change
15	maps and atlases
15	topics
15	water use

Science Topics term usage Wednesday, 2006-04-05