Science Topics term usage 2006-02-08

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.)

336	earthquakes
225	volcanoes
79	earthquake probabilities
73	earthquake occurrences
72	geographic information systems (GIS)
45	tectonic processes
41	mineral resources
41	earth structure
40	maps and atlases
40	energy resources
40	ground water
38	geologic structure
29	seismology
28	aerial photography
27	climate change
27	rocks and deposits
26	landslides
26	seismic methods
24	floods
24	geologic history
23	animals
20	tsunamis
19	nonvascular plants
19	erosion
18	real-time monitoring and reporting
18	storms
17	acid deposition
17	water quality
17	precipitation (atmospheric)
17	human impacts
17	oil resources
16	contamination and pollution
16	remote sensing
16	magnetic field (earth)
15	hazards
15	ocean characteristics
15	image collections
15	surface water (non-marine)
15	droughts
14	volcanic activity

Science Topics term usage Wednesday, 2006-02-08