Science Topics term usage 2007-07-06

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.)

89	geographic information systems (GIS)
60	snow and ice cover
33	streamflow
32	earthquakes
22	ground water
22	volcanoes
17	stream-gage measurement
13	aerial photography
13	surface water (non-marine)
13	earthquake occurrences
12	hydrology
12	earth structure
12	climate change
12	magnetic field (earth)
12	floods
11	ground-water flow
11	fire control
11	water chemistry
10	topics
10	mineral resources
10	global warming
10	map coordinate systems
10	precipitation (atmospheric)
10	land use and land cover
10	cartography
10	maps and atlases
10	field methods
10	ocean characteristics
9	geospatial analysis
9	rocks and deposits
9	acid deposition
9	topography
9	environmental assessment
9	ocean temperature
9	global change
8	impact cratering
8	wetland ecosystems
8	ecosystems
8	animals
7	information system design and development

Science Topics term usage Friday, 2007-07-06