Science Topics term usage 2008-09-30

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.)

476	earthquakes
181	earthquake occurrences
145	maps and atlases
136	volcanoes
87	real-time monitoring and reporting
74	USGS map servers
62	climate change
59	mineral resources
54	energy resources
48	floods
45	contamination and pollution
43	remote sensing
39	surface water (non-marine)
36	geospatial analysis
34	ground water
31	water quality
30	avian influenza
25	earthquake probabilities
24	invasive species
24	droughts
24	oil resources
20	fires
19	environmental health (human)
16	erosion
16	earth structure
15	river systems
14	hydrology
13	human impacts
13	health and disease
13	acid deposition
12	seismology
12	desert ecosystems
11	water properties
11	topics
11	hurricanes
11	global warming
11	volcanic activity
11	USGS maps on demand
10	marine geology
10	ground-water flow

Science Topics term usage Tuesday, 2008-09-30