Science Topics term usage 2007-11-13

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.)

67	earthquakes
62	geographic information systems (GIS)
57	visualization methods
47	volcanoes
29	acid deposition
28	climate change
26	earthquake occurrences
26	desert ecosystems
24	earth structure
22	floods
22	tectonic processes
22	erosion
21	human impacts
18	global warming
18	real-time monitoring and reporting
17	water supply and demand
17	endangered species
16	animals
15	ecosystems
14	global change
14	geologic history
13	ground water
13	drainage basins
13	mathematical modeling
13	mineral resources
12	life sciences
12	tsunamis
12	health and disease
12	ocean characteristics
12	droughts
12	geomorphology
12	water chemistry
11	snow and ice cover
11	contamination and pollution
11	aquatic ecosystems
11	hurricanes
11	water use
11	water quality
11	energy resources
11	precipitation (atmospheric)

Science Topics term usage Tuesday, 2007-11-13