Science Topics term usage 2005-12-20

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.)

114	earthquakes
80	volcanoes
78	geographic information systems (GIS)
45	earthquake occurrences
36	tectonic processes
29	earth structure
28	rocks and deposits
26	tsunamis
25	energy resources
25	ground-water flow
25	economic geology
25	streamflow
24	acid deposition
24	ecosystems
24	water properties
24	maps and atlases
24	mineral resources
23	ground water
23	climate change
22	remote sensing
22	real-time monitoring and reporting
22	water quality
22	aerial photography
22	geologic structure
21	animals
21	surface water (non-marine)
21	landslides
21	life sciences
20	precipitation (atmospheric)
20	contamination and pollution
19	geology
19	cartography
19	geochemistry
19	erosion
19	magnetic field (earth)
19	human impacts
18	geography
18	earth sciences
18	water use
18	snow and ice cover

Science Topics term usage Tuesday, 2005-12-20