Science Topics term usage 2005-12-14

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.)

199	earthquakes
130	volcanoes
65	geographic information systems (GIS)
50	earthquake occurrences
49	earth structure
41	tectonic processes
37	maps and atlases
35	surface water (non-marine)
33	water quality
30	mineral resources
30	remote sensing
29	contamination and pollution
29	energy resources
29	real-time monitoring and reporting
28	geologic history
26	ground water
26	hazards
26	landslides
26	animals
25	aerial photography
25	ocean characteristics
23	acid deposition
22	tsunamis
21	geologic structure
20	geochemistry
19	streamflow
19	water supply and demand
19	climate change
18	volcanic activity
18	human impacts
17	hydrology
17	floods
16	magnetic field (earth)
16	precipitation (atmospheric)
16	water properties
15	snow and ice cover
15	desert ecosystems
15	geology
15	ground-water flow
15	seismic methods

Science Topics term usage Wednesday, 2005-12-14