Science Topics term usage 2008-01-29

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.)

80	geographic information systems (GIS)
59	earthquakes
39	volcanoes
28	islands
25	earthquake occurrences
22	climate change
21	acid deposition
20	earth structure
19	image collections
16	contamination and pollution
16	geologic history
16	rocks and deposits
15	harbors
15	real-time monitoring and reporting
15	erosion
15	endangered species
15	global change
14	health and disease
14	gravitational field (earth)
14	global warming
13	geospatial datasets
13	land use and land cover
13	topics
13	stream-gage measurement
12	water properties
12	mathematical modeling
12	aquatic ecosystems
12	snow and ice cover
11	streamflow
11	human impacts
11	ground-water flow
10	energy resources
10	landslides
10	geologic structure
10	geochemistry
10	floods
10	mineral resources
10	precipitation (atmospheric)
10	tsunamis
10	life sciences

Science Topics term usage Tuesday, 2008-01-29