Science Topics term usage 2008-09-04

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.)

519	earthquakes
206	earthquake occurrences
122	volcanoes
116	maps and atlases
86	real-time monitoring and reporting
67	USGS map servers
65	floods
61	climate change
57	water quality
51	mineral resources
45	energy resources
44	surface water (non-marine)
38	ground water
36	contamination and pollution
34	geospatial analysis
33	invasive species
32	droughts
29	fires
28	remote sensing
25	avian influenza
20	earthquake probabilities
19	earth structure
19	environmental health (human)
18	acid deposition
18	seismology
17	life sciences
17	oil resources
16	endangered species
15	hydrology
14	social sciences
14	river systems
13	human impacts
13	land use and land cover
12	natural gas resources
12	tectonic processes
12	animals
12	desert ecosystems
12	tsunamis
12	ground-water flow
11	water properties

Science Topics term usage Thursday, 2008-09-04