Science Topics term usage 2007-03-22

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.)

94	geographic information systems (GIS)
74	earthquakes
65	volcanoes
32	erosion
29	earthquake occurrences
24	mineral resources
24	tectonic processes
23	climate change
22	contamination and pollution
22	rocks and deposits
22	acid deposition
20	parks
19	maps and atlases
19	global warming
19	fishery management
18	earth structure
17	tsunamis
16	land use and land cover
16	aerial photography
15	human impacts
15	water quality
15	industrial pollution
14	topography
14	floods
13	health and disease
13	sediment transport
13	global change
13	endangered species
12	map coordinate systems
12	geospatial datasets
11	stream-gage measurement
11	surface water (non-marine)
11	hurricanes
11	ground water
10	geologic history
10	energy resources
10	ground-water flow
10	water use
10	geochemistry
10	cartography

Science Topics term usage Thursday, 2007-03-22