Science Topics term usage 2007-04-10

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.)

193	river systems
131	geographic information systems (GIS)
111	earthquakes
87	volcanoes
42	animals
40	earthquake occurrences
33	tsunamis
31	acid deposition
29	contamination and pollution
28	tectonic processes
27	ground water
25	geologic history
25	maps and atlases
25	mineral resources
24	climate change
23	global warming
22	ground-water flow
21	water resources
21	stream discharge
19	water quality
19	drainage basins
19	earth structure
19	energy resources
19	geologic structure
19	rocks and deposits
18	geography
18	map coordinate systems
17	natural gas resources
17	health and disease
17	cartography
16	hydrology
16	river reaches
16	droughts
15	real-time monitoring and reporting
15	oil resources
15	volcanic activity
14	remote sensing
14	floods
14	erosion
14	GPS measurement

Science Topics term usage Tuesday, 2007-04-10