Science Topics term usage 2006-03-30

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.)

179	earthquakes
122	volcanoes
70	tectonic processes
68	geographic information systems (GIS)
55	earthquake occurrences
55	invasive species
39	rocks and deposits
39	energy resources
37	mineral resources
33	erosion
33	landslides
31	earth structure
30	animals
30	climate change
30	water supply and demand
30	floods
28	ground water
26	water resources
26	streamflow
26	tsunamis
24	planetary bodies
24	ground-water flow
23	water quality
22	maps and atlases
21	surface water (non-marine)
21	ecosystems
21	fires
20	contamination and pollution
20	real-time monitoring and reporting
19	coastal zones
19	acid deposition
18	aerial photography
18	remote sensing
18	oil resources
17	global change
17	endangered species
17	snow and ice cover
17	geospatial datasets
17	earthquake probabilities
17	water properties

Science Topics term usage Thursday, 2006-03-30