Science Topics term usage 2007-08-31

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.)

83	geographic information systems (GIS)
56	earthquakes
23	DNA sequencing
21	volcanoes
20	coal resources
19	earthquake occurrences
17	earth structure
16	USGS Quadrangles
16	rocks and deposits
15	tsunamis
14	acid deposition
14	real-time monitoring and reporting
13	energy resources
13	maps and atlases
13	geologic history
13	water quality
12	climate change
10	geology
10	mineral resources
10	endangered species
10	human impacts
9	oil resources
9	hurricanes
9	ground water
9	aerial photography
9	water resources
9	health and disease
9	erosion
9	earthquake probabilities
9	animals
9	global change
9	contamination and pollution
8	desert ecosystems
8	floods
8	topics
8	global warming
8	land use and land cover
8	land surface characteristics
8	volcanic activity
8	snow and ice cover

Science Topics term usage Friday, 2007-08-31