Science Topics term usage 2009-09-30

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.)

4892	earthquakes
2830	earthquake occurrences
649	volcanoes
546	maps and atlases
424	real-time monitoring and reporting
188	topographic maps
186	climate change
177	mineral resources
171	floods
166	seismology
161	earthquake probabilities
143	map interfaces
136	invasive species
127	water quality
125	energy resources
123	avian influenza
119	ground water
109	droughts
105	remote sensing
98	geospatial analysis
97	contamination and pollution
96	geologic maps
83	surface water (non-marine)
79	tsunamis
70	tectonic processes
70	geologic history
65	earth structure
64	human impacts
61	volcanic activity
56	environmental health (human)
52	hazards
50	fires
47	health and disease
47	topics
45	geologic processes
42	life sciences
41	gravitational field (earth)
38	aerial photography
36	natural resources
35	geologic structure

Science Topics term usage Wednesday, 2009-09-30