Science Topics term usage 2007-02-28

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.)

126	volcanoes
121	earthquakes
108	geographic information systems (GIS)
49	lakes
44	earthquake occurrences
40	earth structure
30	animals
29	mineral resources
28	geologic structure
27	acid deposition
27	contamination and pollution
26	climate change
26	deformation (geologic)
23	floods
22	remote sensing
22	oil resources
21	tsunamis
21	landslides
20	tectonic processes
18	social sciences
18	energy resources
18	sea-floor characteristics
18	sediment transport
18	streamflow
17	human impacts
17	rocks and deposits
16	endangered species
16	global warming
15	magnetic field (earth)
14	ground-water flow
14	surface water (non-marine)
14	river systems
14	health and disease
14	erosion
14	volcanic activity
14	global change
13	earthquake probabilities
13	ocean characteristics
13	wildlife
12	geography

Science Topics term usage Wednesday, 2007-02-28