Science Topics term usage 2007-09-26

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.)

86	geographic information systems (GIS)
83	earthquakes
75	volcanoes
36	paleobotany
34	earth structure
32	earthquake occurrences
32	tectonic processes
24	climate change
23	mineral resources
22	acid deposition
21	tsunamis
19	energy resources
17	endangered species
16	geologic history
15	grassland ecosystems
15	rocks and deposits
15	geologic structure
15	river systems
15	hurricanes
14	plants (organisms)
14	global warming
13	human impacts
13	geospatial datasets
13	global change
12	floods
12	maps and atlases
12	contamination and pollution
11	habitat alteration
11	real-time monitoring and reporting
11	animals
11	ground water
11	ocean characteristics
11	ground-water flow
11	streamflow
11	volcanic activity
10	health and disease
10	aerial photography
10	microscopy
10	magnetic field (earth)
10	desert ecosystems

Science Topics term usage Wednesday, 2007-09-26