Science Topics term usage 2009-12-03

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.)

1143	earthquakes
414	earthquake occurrences
374	volcanoes
203	maps and atlases
142	real-time monitoring and reporting
125	energy resources
117	climate change
112	mineral resources
104	floods
103	ground water
97	water quality
80	topographic maps
68	geospatial analysis
67	droughts
66	map interfaces
62	remote sensing
61	surface water (non-marine)
55	geologic maps
55	invasive species
54	earthquake probabilities
54	fires
46	oil resources
46	contamination and pollution
42	avian influenza
41	seismology
39	acid deposition
38	human impacts
34	tectonic processes
28	ground-water quality
27	environmental health (human)
26	geographic information systems (GIS)
25	natural resources
25	hazards
22	river systems
22	liquefaction
22	erosion
21	earth structure
21	soil resources
21	biodiversity
21	volcanic activity

Science Topics term usage Thursday, 2009-12-03