Science Topics term usage 2007-03-27

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.)

129	earthquakes
112	geographic information systems (GIS)
101	volcanoes
76	global warming
47	earthquake occurrences
44	earth characteristics
29	tectonic processes
28	climate change
28	earth structure
25	contamination and pollution
25	human impacts
22	water quality
21	global change
19	landslides
18	acid deposition
17	harbors
17	geologic structure
17	endangered species
17	energy resources
17	topics
17	ground-water flow
15	drainage basins
15	water circulation
15	volcanic activity
15	rocks and deposits
14	geologic history
14	floods
13	geospatial datasets
13	stream-gage measurement
13	tsunamis
13	hurricanes
13	health and disease
12	map coordinate systems
12	surface water quality
12	industrial pollution
11	erosion
11	oil resources
11	biogeography
11	water resources
11	GPS measurement

Science Topics term usage Tuesday, 2007-03-27