Science Topics term usage 2006-12-14

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.)

117	geographic information systems (GIS)
106	earthquakes
85	volcanoes
40	geochemical processes
35	river systems
34	earthquake occurrences
28	tectonic processes
26	ground water
22	floods
20	energy resources
19	real-time monitoring and reporting
18	acid deposition
18	land use and land cover
17	mineral resources
17	earth structure
17	human impacts
16	oil resources
15	ecosystems
15	tsunamis
15	contamination and pollution
14	rocks and deposits
14	climate change
14	landslides
14	water quality
13	maps and atlases
13	sedimentation
13	sediment transport
13	health and disease
13	hydrology
12	magnetic field (earth)
12	environmental assessment
12	geologic structure
12	ground-water flow
12	vertebrates
11	animals
11	hurricanes
11	seismology
11	drainage basins
11	topics
11	water cycle

Science Topics term usage Thursday, 2006-12-14