Science Topics term usage 2005-10-20

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.)

210	earthquakes
110	volcanoes
73	geographic information systems (GIS)
58	earthquake occurrences
51	energy resources
48	maps and atlases
46	tectonic processes
43	earth structure
40	mineral resources
38	rocks and deposits
38	storms
37	surface water (non-marine)
34	aerial photography
33	ground water
32	animals
30	contamination and pollution
30	water quality
28	oil resources
28	hazards
27	water resources
27	geologic history
27	human impacts
25	tsunamis
25	health and disease
24	land surface characteristics
24	real-time monitoring and reporting
24	remote sensing
24	geologic structure
24	acid deposition
23	invasive species
23	hurricanes
22	landslides
22	climate change
22	erosion
21	plants (organisms)
21	earthquake probabilities
19	floods
19	water properties
18	meteorites
18	streamflow

Science Topics term usage Thursday, 2005-10-20