Science Topics term usage 2007-02-15

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.)

132	earthquakes
101	volcanoes
79	geographic information systems (GIS)
39	earthquake occurrences
34	tectonic processes
31	air temperature
28	earth structure
23	climate change
22	water quality
20	erosion
19	volcanic activity
19	ground water
19	energy resources
19	floods
17	landslides
17	rocks and deposits
17	acid deposition
16	fires
16	tsunamis
16	hurricanes
14	hazards
14	endangered species
14	hydrology
14	geologic structure
14	snow and ice cover
14	maps and atlases
13	human impacts
13	mineral resources
13	animals
12	global change
12	water resources
12	cartography
11	geography
11	map coordinate systems
11	contamination and pollution
11	land subsidence
10	stream-gage measurement
10	topics
10	water properties
10	earthquake probabilities

Science Topics term usage Thursday, 2007-02-15