Science Topics term usage 2009-08-30

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.)

658	earthquakes
334	earthquake occurrences
251	volcanoes
220	maps and atlases
125	real-time monitoring and reporting
120	fires
110	energy resources
103	map interfaces
90	contamination and pollution
89	mineral resources
88	ground water
84	topographic maps
81	remote sensing
80	climate change
75	water quality
71	invasive species
70	floods
69	life sciences
68	droughts
67	surface water (non-marine)
63	environmental health (human)
60	health and disease
60	animals
55	geospatial analysis
55	geologic maps
45	earth structure
39	ecotoxicology
39	avian influenza
39	human impacts
39	oil resources
32	acid deposition
31	field methods
28	stream-gage measurement
28	topics
28	earthquake probabilities
27	magnetic field (earth)
26	vertebrates
26	geologic processes
24	ground-water flow
23	global change

Science Topics term usage Sunday, 2009-08-30