Science Topics term usage 2007-11-28

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.)

196	geographic information systems (GIS)
85	ecosystem functions
60	earthquakes
59	climate change
54	acid deposition
48	volcanoes
48	earth structure
30	droughts
24	real-time monitoring and reporting
24	human impacts
23	earthquake occurrences
20	contamination and pollution
20	water supply and demand
19	global change
18	animals
18	maps and atlases
17	geologic history
16	endangered species
16	coastal zones
15	cartography
15	land use and land cover
15	precipitation (atmospheric)
15	energy resources
15	map coordinate systems
14	geologic structure
14	ground water
13	core (earth)
13	global warming
13	erosion
12	health and disease
12	hurricanes
12	deformation (geologic)
12	mineral resources
12	geography
12	landslides
12	water resources
12	stream-gage measurement
11	aerial photography
11	topics
11	desert ecosystems

Science Topics term usage Wednesday, 2007-11-28