Science Topics term usage 2007-08-22

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.)

79	geographic information systems (GIS)
77	earthquakes
42	vertebrates
39	earthquake occurrences
31	earth structure
25	rocks and deposits
25	volcanoes
24	real-time monitoring and reporting
22	streamflow
21	contamination and pollution
21	animals
18	water resources
17	aerial photography
17	acid deposition
16	ground-water flow
16	human impacts
16	mineral resources
16	hydrology
16	water supply and demand
16	parasites
15	aquatic ecosystems
15	climate change
14	ground water
14	floods
13	surface water (non-marine)
13	geospatial datasets
13	stream-gage measurement
13	biodiversity
13	hazards
13	invertebrates
13	cartography
12	health and disease
12	earth characteristics
12	image collections
12	birds
12	droughts
12	water quality
12	zoology
12	ecosystems
12	geochemistry

Science Topics term usage Wednesday, 2007-08-22