Science Topics term usage 2006-04-14

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.)

124	earthquakes
77	volcanoes
47	geographic information systems (GIS)
30	tectonic processes
26	real-time monitoring and reporting
24	land surface characteristics
23	earthquake occurrences
22	surface water (non-marine)
21	geologic history
20	aerial photography
18	mineral resources
18	energy resources
17	erosion
16	floods
16	climate change
15	animals
15	water quality
15	ecosystems
14	geologic structure
14	maps and atlases
14	streamflow
13	oil resources
13	ground water
13	ground-water flow
12	water supply and demand
12	planetary bodies
12	contamination and pollution
12	seismology
11	stratigraphic sections
11	global change
10	life sciences
10	earth structure
10	magnetic field (earth)
10	radiometric dating
10	rocks and deposits
10	tsunamis
10	snow and ice cover
10	habitats
9	natural resource management
9	mathematical modeling

Science Topics term usage Friday, 2006-04-14