Science Topics term usage 2009-08-12

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.)

924	earthquakes
494	earthquake occurrences
226	volcanoes
222	maps and atlases
169	real-time monitoring and reporting
116	topographic maps
114	remote sensing
106	energy resources
103	mineral resources
95	climate change
87	ground water
86	surface water (non-marine)
84	map interfaces
79	water quality
69	avian influenza
68	floods
65	geologic maps
60	invasive species
59	geospatial analysis
59	contamination and pollution
45	seismology
43	droughts
43	fires
41	environmental health (human)
36	earthquake probabilities
34	river systems
31	oil resources
30	natural resources
29	volcanic activity
28	global warming
28	hydrology
27	tectonic processes
26	global change
26	ecosystems
25	stream discharge
24	geographic information systems (GIS)
24	water resources
23	geochemistry
23	human impacts
20	coal resources

Science Topics term usage Wednesday, 2009-08-12