Science Topics term usage 2006-08-16

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.)

68	energy resources
55	geographic information systems (GIS)
53	volcanoes
51	earthquakes
22	floods
17	tectonic processes
17	ground-water flow
16	earth structure
15	maps and atlases
15	magnetic field (earth)
13	land use and land cover
13	mineral resources
12	earthquake occurrences
12	habitats
12	gulfs
12	aerial photography
11	landslides
11	climate change
11	geologic structure
11	cartography
10	ocean characteristics
10	California
10	coal resources
9	fires
9	marine geology
9	wildlife
9	estuarine ecosystems
9	water resources
9	volcanic activity
9	human impacts
9	structural geology
9	invasive species
9	ground water
9	water quality
9	surface water (non-marine)
8	geology
8	ecosystems
8	acid deposition
8	impact cratering
8	sediment transport

Science Topics term usage Wednesday, 2006-08-16