Science Topics term usage 2007-01-16

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.)

118	geographic information systems (GIS)
88	earthquakes
72	volcanoes
31	earthquake occurrences
26	biostratigraphy
26	tectonic processes
25	floodplains
24	earth structure
22	contamination and pollution
22	animals
20	water supply and demand
19	energy resources
19	acid deposition
18	rocks and deposits
17	endangered species
17	human impacts
17	tsunamis
16	ground water
16	magnetic field (earth)
15	geologic history
15	water quality
15	aerial photography
15	mineral resources
15	floods
15	industrial pollution
14	climate change
14	geology
13	snow and ice cover
13	streamflow
13	precipitation (atmospheric)
13	landslides
13	desert ecosystems
12	oil resources
12	ecosystems
12	ground-water flow
12	surface water (non-marine)
12	real-time monitoring and reporting
11	outer core (earth)
11	topography
11	invasive species

Science Topics term usage Tuesday, 2007-01-16