Science Topics term usage 2006-02-12

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.)

109	earthquakes
86	volcanoes
39	earthquake occurrences
39	geographic information systems (GIS)
26	geography
26	tectonic processes
23	earth structure
23	rocks and deposits
20	mineral resources
18	aerial photography
18	magnetic field (earth)
17	energy resources
17	volcanic activity
16	acid deposition
16	floods
15	water quality
15	cartography
15	birds
14	hazards
14	animals
14	streamflow
13	ecosystems
13	ground water
12	geochemistry
12	management methods
12	climate change
12	topography
12	seismology
11	real-time monitoring and reporting
11	geologic history
11	ocean characteristics
11	igneous rocks
11	geologic processes
10	contamination and pollution
10	water sampling
10	coastal zones
9	tsunamis
9	human impacts
9	ecology
9	land surface characteristics

Science Topics term usage Sunday, 2006-02-12