Science Topics term usage 2007-08-21

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	earthquakes
79	geographic information systems (GIS)
37	volcanoes
33	earthquake occurrences
28	parasites
26	hurricanes
23	earth structure
20	land subsidence
19	streamflow
19	scientific careers
15	climate change
15	tectonic processes
14	maps and atlases
14	geospatial datasets
14	geologic structure
13	real-time monitoring and reporting
13	rocks and deposits
12	ocean characteristics
12	ground water
12	surface water (non-marine)
12	stream-gage measurement
12	mineral resources
12	hazards
12	health and disease
11	acid deposition
11	hydrology
11	geologic history
11	contamination and pollution
11	land use and land cover
11	volcanic activity
10	information system design and development
10	topography
10	magnetic field (earth)
10	energy resources
10	droughts
10	map coordinate systems
10	ecosystems
9	water chemistry
9	life sciences
9	human impacts

Science Topics term usage Tuesday, 2007-08-21