Science Topics term usage 2008-03-24

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.)

442	earthquakes
189	earthquake occurrences
165	volcanoes
140	maps and atlases
88	real-time monitoring and reporting
70	USGS map servers
64	climate change
56	energy resources
55	water quality
52	mineral resources
51	ground water
49	surface water (non-marine)
47	contamination and pollution
46	avian influenza
46	remote sensing
43	invasive species
38	geospatial analysis
33	environmental health (human)
24	fires
23	human impacts
23	North America
19	earthquake probabilities
18	acid deposition
15	ground-water flow
15	floods
15	global warming
14	river systems
14	oil resources
13	health and disease
13	global change
11	hazards
11	erosion
11	endangered species
11	water supply and demand
10	geologic structure
10	sediment transport
10	geologic history
10	land surface characteristics
10	gravitational field (earth)
9	desert ecosystems

Science Topics term usage Monday, 2008-03-24