Science Topics term usage 2007-03-06

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.)

154	earthquakes
115	volcanoes
105	geographic information systems (GIS)
92	igneous rocks
55	earthquake occurrences
35	rocks and deposits
30	mineral resources
28	earth structure
26	climate change
23	contamination and pollution
23	energy resources
22	tectonic processes
20	floods
19	acid deposition
18	real-time monitoring and reporting
18	erosion
18	water quality
17	land use and land cover
16	coal resources
15	health and disease
15	tsunamis
14	landslides
14	hazards
14	geologic history
14	oil resources
14	hurricanes
13	topography
13	volcanic activity
13	ground water
13	seismology
12	global warming
12	well drilling
11	maps and atlases
11	marine geology
10	geologic structure
10	volcanic rocks
10	geography
10	geospatial datasets
10	map coordinate systems
10	ground-water flow

Science Topics term usage Tuesday, 2007-03-06