Science Topics term usage 2009-12-11

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.)

1018	earthquakes
393	earthquake occurrences
310	volcanoes
142	maps and atlases
118	real-time monitoring and reporting
107	climate change
104	mineral resources
77	energy resources
70	topographic maps
69	floods
56	map interfaces
55	water quality
51	geologic maps
51	geospatial analysis
49	remote sensing
49	invasive species
49	surface water (non-marine)
47	ground water
46	seismology
40	oil resources
37	human impacts
34	contamination and pollution
31	earthquake probabilities
30	environmental health (human)
29	acid deposition
27	California
27	avian influenza
26	droughts
21	global warming
20	geologic processes
18	pesticide and herbicide contamination
18	soil resources
17	natural gas resources
16	earth structure
16	land use and land cover
16	metallic ores
16	volcanic activity
15	geographic information systems (GIS)
15	geothermal resources
15	eutrophication

Science Topics term usage Friday, 2009-12-11