Science Topics term usage 2007-06-26

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.)

100	geographic information systems (GIS)
45	earthquakes
44	photography
22	maps and atlases
22	volcanoes
18	earth structure
15	geologic history
14	earthquake occurrences
13	climate change
13	real-time monitoring and reporting
13	water quality
13	map coordinate systems
12	ground water
12	health and disease
11	tectonic processes
10	contamination and pollution
10	fires
10	natural gas resources
10	surface water (non-marine)
10	rocks and deposits
9	aerial photography
9	ground-water flow
9	streamflow
9	GPS measurement
8	water chemistry
8	geospatial datasets
8	river systems
8	water resources
8	land use and land cover
8	rivers
8	surface water quality
7	sedimentary rocks
7	oil resources
7	ecosystems
7	acid deposition
7	animals
7	geography
6	marine geology
6	energy resources
6	coastal zones

Science Topics term usage Tuesday, 2007-06-26