Science Topics term usage 2006-04-27

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.)

378	volcanoes
223	earthquakes
70	geographic information systems (GIS)
62	earthquake occurrences
60	energy resources
51	rocks and deposits
40	cartography
40	geologic history
40	animals
36	mineral resources
32	floods
30	tectonic processes
30	geologic structure
29	erosion
29	earth structure
29	ground water
29	surface water (non-marine)
28	aerial photography
27	oil resources
27	contamination and pollution
26	maps and atlases
26	water quality
25	tsunamis
25	streamflow
24	sediment transport
24	biogeography
23	real-time monitoring and reporting
23	landslides
22	climate change
21	droughts
21	mining hazards
21	water resources
20	water supply and demand
20	ground-water flow
20	hazards
19	ecosystems
19	natural resources
19	acid deposition
18	biodiversity
18	earthquake probabilities

Science Topics term usage Thursday, 2006-04-27