Science Topics term usage 2007-03-30

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.)

99	geographic information systems (GIS)
82	earthquakes
71	volcanoes
37	overfishing
36	maps and atlases
35	earthquake occurrences
21	hydrogeology
17	acid deposition
16	map coordinate systems
14	tsunamis
14	contamination and pollution
14	mineral resources
13	oil resources
13	real-time monitoring and reporting
12	water supply and demand
11	stream-gage measurement
11	land use and land cover
11	topography
11	ground water
11	tectonic processes
10	geologic history
10	global warming
10	energy resources
10	endangered species
10	landslides
10	coastal ecosystems
10	invasive species
10	streamflow
9	hydrology
9	earth structure
8	drainage basins
8	water chemistry
8	ground-water flow
8	climate change
8	aquatic biology
8	droughts
8	geography
8	water quality
8	ocean temperature
8	floods

Science Topics term usage Friday, 2007-03-30