Science Topics term usage 2006-02-10

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.)

226	earthquakes
207	volcanoes
73	earthquake occurrences
71	tectonic processes
54	geographic information systems (GIS)
47	earth structure
35	ground water
33	mineral resources
30	maps and atlases
29	ground-water flow
28	streamflow
27	tsunamis
26	geologic history
24	animals
22	earth sciences
22	geologic structure
21	real-time monitoring and reporting
21	earthquake probabilities
21	rocks and deposits
20	aerial photography
19	planetary bodies
17	seismology
16	snow and ice cover
16	energy resources
16	contamination and pollution
15	global change
15	map coordinate systems
14	glaciation
14	stream-gage measurement
14	climate change
14	gravitational field (earth)
14	endangered species
13	health and disease
13	water resources
13	wildlife
13	coastal zones
13	hydrology
13	volcanic activity
13	meteorites
12	topography

Science Topics term usage Friday, 2006-02-10