Science Topics term usage 2008-03-20

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.)

554	earthquakes
247	volcanoes
246	earthquake occurrences
128	real-time monitoring and reporting
106	maps and atlases
76	USGS map servers
73	energy resources
64	climate change
64	water quality
64	surface water (non-marine)
62	mineral resources
59	ground water
49	contamination and pollution
49	invasive species
49	avian influenza
43	geospatial analysis
40	remote sensing
36	fires
30	environmental health (human)
26	acid deposition
25	animals
22	floods
18	earthquake probabilities
18	erosion
18	tsunamis
16	social sciences
15	earth structure
15	stream-gage measurement
14	seismology
14	endangered species
14	hazards
13	meteorites
13	river systems
13	USGS budget
12	tectonic processes
12	oil resources
12	human impacts
12	plants (organisms)
11	aerial photography
11	topography

Science Topics term usage Thursday, 2008-03-20