Science Topics term usage 2010-06-13

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.)

1497	earthquakes
642	earthquake occurrences
196	volcanoes
122	real-time monitoring and reporting
111	maps and atlases
76	energy resources
58	mineral resources
55	floods
54	topographic maps
54	climate change
49	map interfaces
41	earthquake probabilities
41	surface water (non-marine)
39	seismology
39	ground water
38	droughts
38	avian influenza
29	contamination and pollution
27	remote sensing
27	geospatial analysis
27	oil resources
26	California
25	water quality
24	invasive species
18	sea-floor characteristics
18	environmental health (human)
15	volcanic activity
15	fires
14	surface water quality
13	earth structure
12	San Diego
12	freshwater ecosystems
11	endangered species
11	global warming
10	ecology
10	magnetic field (earth)
10	global change
9	acid deposition
9	eutrophication
9	human impacts

Science Topics term usage Sunday, 2010-06-13