Science Topics term usage 2009-01-20

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.)

730	earthquakes
320	earthquake occurrences
159	volcanoes
110	maps and atlases
80	real-time monitoring and reporting
63	climate change
59	mineral resources
59	USGS map servers
56	water quality
50	energy resources
48	avian influenza
43	droughts
39	contamination and pollution
38	floods
38	ground water
38	topographic maps
38	geospatial analysis
35	remote sensing
27	invasive species
27	seismology
26	surface water (non-marine)
23	fires
21	environmental health (human)
18	animals
17	health and disease
17	human impacts
15	acid deposition
14	earthquake probabilities
14	desert ecosystems
14	geologic maps
13	earth structure
13	California
12	global warming
12	oil resources
12	endangered species
12	life sciences
11	sea-floor characteristics
11	tsunamis
11	social sciences
10	ground-water quality

Science Topics term usage Tuesday, 2009-01-20