Science Topics term usage 2006-11-13

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.)

130	earthquakes
90	volcanoes
61	geographic information systems (GIS)
34	earthquake occurrences
31	reef ecosystems
31	tectonic processes
27	floods
26	earth structure
26	mineral resources
25	acid deposition
22	hurricanes
19	animals
18	climate change
18	streamflow
18	tsunamis
18	water quality
17	energy resources
17	contamination and pollution
16	erosion
15	river systems
15	cartography
15	desert ecosystems
15	maps and atlases
14	fishery management
14	land use and land cover
14	surface water (non-marine)
13	endangered species
13	ground-water flow
13	ground water
13	invasive species
13	topography
13	landslides
13	sediment transport
12	human impacts
11	meteorites
10	geologic history
10	water hardness
10	precipitation (atmospheric)
10	global change
10	remote sensing

Science Topics term usage Monday, 2006-11-13