Science Topics term usage 2007-08-29

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.)

100	geographic information systems (GIS)
74	earthquakes
57	sediment transport
54	human impacts
31	earthquake occurrences
30	volcanoes
26	acid deposition
26	mineral resources
23	earth structure
20	tectonic processes
19	animals
18	USGS Quadrangles
18	climate change
16	real-time monitoring and reporting
16	climatology
16	energy resources
15	ground water
15	water properties
15	contamination and pollution
14	hurricanes
13	freshwater ecosystems
12	rocks and deposits
12	biodiversity
12	impact cratering
11	geospatial datasets
11	endangered species
11	water quality
11	desert ecosystems
11	drainage basins
11	water chemistry
11	ocean characteristics
11	scientific careers
10	geologic history
10	maps and atlases
10	earth sciences
10	hydrology
10	tsunamis
10	water cycle
10	precipitation (atmospheric)
10	aerial photography

Science Topics term usage Wednesday, 2007-08-29