Science Topics term usage 2009-02-01

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.)

557	earthquakes
348	volcanoes
210	earthquake occurrences
80	maps and atlases
57	real-time monitoring and reporting
46	USGS map servers
45	mineral resources
42	floods
38	climate change
32	energy resources
30	avian influenza
29	droughts
28	contamination and pollution
27	ground water
27	topographic maps
26	invasive species
26	remote sensing
22	water quality
21	geospatial analysis
18	environmental health (human)
18	volcanic activity
17	surface water (non-marine)
17	fires
15	earthquake probabilities
14	geologic maps
11	health and disease
11	erosion
11	human impacts
11	desert ecosystems
11	oil resources
10	seismology
10	earth structure
9	nutrient content (water)
8	geochemistry
8	USGS budget
7	volcanic eruption prediction
7	land use and land cover
6	hazards
6	water circulation
6	topography

Science Topics term usage Sunday, 2009-02-01