Science Topics term usage 2009-03-12

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.)

549	earthquakes
293	volcanoes
250	earthquake occurrences
142	maps and atlases
110	climate change
94	real-time monitoring and reporting
82	USGS map servers
81	floods
67	energy resources
64	water quality
64	ground water
56	surface water (non-marine)
56	mineral resources
54	contamination and pollution
53	topographic maps
51	droughts
50	geospatial analysis
38	remote sensing
30	geologic maps
29	environmental health (human)
29	river systems
29	oil resources
25	invasive species
25	seismology
24	avian influenza
24	fires
22	ocean characteristics
22	global warming
17	acid deposition
17	natural gas resources
15	tsunamis
14	soil resources
13	meteorites
13	animals
13	health and disease
13	land use and land cover
13	erosion
13	human impacts
12	earth structure
11	USGS maps on demand

Science Topics term usage Thursday, 2009-03-12