Science Topics term usage 2007-09-24

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.)

108	geographic information systems (GIS)
89	earthquakes
85	volcanoes
73	streamflow
46	social sciences
30	earth structure
29	acid deposition
28	climate change
26	earthquake occurrences
26	tsunamis
24	real-time monitoring and reporting
24	tectonic processes
23	hurricanes
23	human impacts
22	global change
21	animals
20	contamination and pollution
20	global warming
17	sea-level change
16	water quality
16	rocks and deposits
15	ground-water flow
14	mineral resources
14	geologic history
13	snow and ice cover
13	energy resources
12	geologic structure
12	erosion
12	volcanic activity
12	invasive species
12	bedrock geologic units
12	landslides
12	endangered species
11	ground water
11	land use and land cover
11	population and community ecology
11	sediment transport
11	habitat alteration
11	water supply and demand
10	plants (organisms)

Science Topics term usage Monday, 2007-09-24