Science Topics term usage 2007-04-07

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.)

76	geographic information systems (GIS)
40	volcanoes
40	ecological processes
35	earthquakes
16	earthquake occurrences
15	ground water
13	maps and atlases
12	global warming
12	human impacts
12	earth structure
12	map coordinate systems
11	geologic history
11	rocks and deposits
11	water properties
11	oil resources
11	energy resources
10	mineral resources
10	flowering plants
10	tectonic processes
10	ground-water flow
10	animals
10	real-time monitoring and reporting
9	vegetation
9	ecosystems
9	ecology
9	hydrology
9	climate change
9	ground-water quality
8	magnetic field (earth)
8	mantle (earth)
8	hazards
8	aquatic ecosystems
8	water chemistry
8	health and disease
8	wetland ecosystems
8	natural resource exploration
8	global change
8	acid deposition
8	endangered species
7	desert ecosystems

Science Topics term usage Saturday, 2007-04-07