Science Topics term usage 2006-10-10

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.)

127	earthquakes
97	water chemistry
80	volcanoes
50	geographic information systems (GIS)
48	earthquake occurrences
43	tectonic processes
32	maps and atlases
30	earth structure
30	water resources
26	chemical analysis
22	water quality
19	rocks and deposits
19	climate change
18	erosion
18	precipitation (atmospheric)
18	hurricanes
18	acid deposition
17	contamination and pollution
17	human impacts
16	real-time monitoring and reporting
16	seismology
16	geologic structure
16	mineral resources
15	ground-water quality
15	endangered species
15	invasive species
15	remote sensing
15	streamflow
14	aerial photography
14	energy resources
13	ground-water flow
13	geologic history
13	global change
13	freshwater ecosystems
13	oxygen content (water)
13	animals
12	floods
12	tsunamis
12	earthquake probabilities
11	water supply and demand

Science Topics term usage Tuesday, 2006-10-10