Science Topics term usage 2007-03-12

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.)

114	volcanoes
102	earthquakes
92	geographic information systems (GIS)
63	alluvial fans
41	earthquake occurrences
32	mineral resources
31	tectonic processes
26	acid deposition
26	rocks and deposits
25	earth structure
24	tsunamis
18	contamination and pollution
18	floods
17	landslides
17	animals
16	energy resources
15	aerial photography
15	oil resources
15	invertebrate zoology
15	cartography
14	climate change
14	streamflow
14	human impacts
14	endangered species
13	fires
13	maps and atlases
12	geologic history
12	land use and land cover
12	water quality
12	ground water
12	erosion
11	geography
11	volcanic activity
11	ground-water flow
10	ocean temperature
10	snow and ice cover
10	surface water (non-marine)
10	global change
10	sedimentation
9	seismology

Science Topics term usage Monday, 2007-03-12