Science Topics term usage 2007-07-09

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.)

104	geographic information systems (GIS)
58	ocean waves
42	earthquakes
33	volcanoes
18	earth structure
14	climate change
14	rocks and deposits
13	ground water
13	greenhouse gases
12	earthquake occurrences
12	human impacts
12	ground-water flow
12	mineral resources
11	real-time monitoring and reporting
11	animals
11	surface water (non-marine)
11	acid deposition
10	water quality
10	earthquake probabilities
10	tsunamis
10	floods
10	map coordinate systems
10	impact cratering
10	ecosystems
10	oil resources
10	ocean processes
9	hydrology
9	contamination and pollution
9	maps and atlases
9	aerial photography
8	cartography
8	geologic history
8	ocean characteristics
8	biodiversity
8	volcanic activity
8	global warming
8	droughts
8	ecological processes
8	geochemistry
8	stream-gage measurement

Science Topics term usage Monday, 2007-07-09