Science Topics term usage 2007-06-18

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.)

110	geographic information systems (GIS)
50	nonindigenous species
45	earthquakes
38	volcanoes
29	earthquake occurrences
19	earth structure
19	mineral resources
19	aerial photography
15	land use and land cover
15	rocks and deposits
14	acid deposition
13	ground water
13	water resources
12	map coordinate systems
12	health and disease
12	topography
12	maps and atlases
12	energy resources
11	climate change
11	real-time monitoring and reporting
11	streamflow
11	endangered species
11	life sciences
10	water quality
10	volcanic activity
10	atmospheric deposition (chemical & particulate)
10	animals
10	GPS measurement
9	ground-water flow
9	invasive species
9	ocean temperature
9	earth characteristics
8	tectonic processes
8	ecology
8	hurricanes
8	floods
8	land surface characteristics
8	surface water (non-marine)
8	water chemistry
8	landslides

Science Topics term usage Monday, 2007-06-18