Science Topics term usage 2007-09-23

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.)

92	geographic information systems (GIS)
44	bedrock geologic units
42	earthquakes
40	volcanoes
27	climate change
23	global change
21	streamflow
21	natural resource exploration
20	global warming
19	sea-level change
19	floods
18	tectonic processes
17	health and disease
16	acid deposition
16	earth structure
15	tsunamis
15	earthquake occurrences
13	mineral resources
13	coastal zones
12	human impacts
10	contamination and pollution
10	desert ecosystems
10	geospatial datasets
9	geologic history
9	real-time monitoring and reporting
9	endangered species
9	ground water
8	rocks and deposits
8	water properties
8	geologic structure
8	map coordinate systems
8	volcanic activity
8	freshwater ecosystems
8	hurricanes
7	aquatic biology
7	snow and ice cover
7	land surface characteristics
7	oil resources
7	energy resources
7	plants (organisms)

Science Topics term usage Sunday, 2007-09-23