Science Topics term usage 2009-12-01

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.)

1217	earthquakes
493	earthquake occurrences
399	volcanoes
243	maps and atlases
122	ground water
121	climate change
121	real-time monitoring and reporting
118	energy resources
110	topographic maps
106	mineral resources
82	map interfaces
81	floods
72	geologic maps
69	water quality
69	human impacts
63	invasive species
61	geospatial analysis
59	remote sensing
51	contamination and pollution
51	oil resources
49	global warming
48	surface water (non-marine)
41	droughts
40	avian influenza
39	seismology
37	surface water quality
36	acid deposition
36	environmental health (human)
33	earth structure
33	sediment transport
30	ground-water flow
30	earthquake probabilities
28	geologic history
26	ground-water quality
26	pesticide and herbicide contamination
25	tornadoes
24	endangered species
24	inner core (earth)
23	topics
23	hydrology

Science Topics term usage Tuesday, 2009-12-01