Science Topics term usage 2006-11-15

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.)

173	earthquakes
148	volcanoes
107	oceanic lithosphere
67	tsunamis
59	earthquake occurrences
51	geographic information systems (GIS)
30	tectonic processes
29	earth structure
26	acid deposition
25	ground water
25	hurricanes
23	real-time monitoring and reporting
22	animals
22	contamination and pollution
21	floods
21	water quality
20	drainage basins
20	volcanic activity
19	geologic history
19	invasive species
19	climate change
19	aerial photography
18	magnetic field (earth)
18	herpetology
18	oil resources
18	streamflow
18	desert ecosystems
16	mineral resources
16	energy resources
16	rocks and deposits
15	sea-floor characteristics
15	remote sensing
14	land use and land cover
14	outer core (earth)
14	global change
14	landslides
14	hazards
13	seismology
13	water properties
13	human impacts

Science Topics term usage Wednesday, 2006-11-15