Science Topics term usage 2007-03-17

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.)

59	geographic information systems (GIS)
34	earthquakes
33	volcanoes
29	coastal zones
13	energy resources
10	aerial photography
9	climate change
9	global warming
9	tectonic processes
9	acid deposition
8	earthquake occurrences
8	streamflow
8	volcanology
7	magnetic field (earth)
7	geologic history
7	global change
7	earth structure
7	contamination and pollution
6	GPS measurement
6	desert ecosystems
6	human impacts
6	sediment transport
6	water resources
6	oil resources
6	natural gas resources
5	geologic structure
5	marine geology
5	sea-floor characteristics
5	geography
5	ground water
5	overfishing
5	ocean characteristics
5	animals
5	planetary sciences
5	floods
5	mineral resources
5	rocks and deposits
5	hurricanes
4	tsunamis
4	earthquake probabilities

Science Topics term usage Saturday, 2007-03-17