Science Topics term usage 2007-05-16

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.)

126	ground water
92	earthquakes
84	volcanoes
80	geographic information systems (GIS)
30	earth structure
29	earthquake occurrences
27	acid deposition
24	rocks and deposits
24	floods
24	contamination and pollution
23	tectonic processes
21	magnetic field (earth)
18	health and disease
18	coastal zones
17	climate change
17	natural gas resources
16	endangered species
16	landslides
16	geologic history
16	ecosystems
15	erosion
15	water resources
15	wetland ecosystems
15	human impacts
15	ground-water flow
14	freshwater ecosystems
14	streamflow
13	river systems
13	hazards
13	energy resources
13	real-time monitoring and reporting
13	stream-gage measurement
12	oil resources
12	aquatic ecosystems
12	tsunamis
12	precipitation (atmospheric)
12	geologic structure
11	water supply and demand
11	geolocation measurement
11	map coordinate systems

Science Topics term usage Wednesday, 2007-05-16