Science Topics term usage 2009-03-27

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.)

963	earthquakes
435	earthquake occurrences
385	volcanoes
130	floods
106	real-time monitoring and reporting
99	maps and atlases
64	USGS map servers
59	climate change
54	surface water (non-marine)
48	mineral resources
46	energy resources
45	ground water
42	earthquake probabilities
40	droughts
38	water quality
38	contamination and pollution
36	invasive species
35	topographic maps
34	remote sensing
32	avian influenza
30	geospatial analysis
22	environmental health (human)
19	fires
19	seismology
17	California
16	river systems
16	geologic maps
16	stream-gage measurement
15	health and disease
15	oil resources
15	human impacts
14	USGS budget
14	acid deposition
11	global warming
11	streamflow
11	endangered species
10	hydrology
9	surface-water level
9	volcanic activity
9	drainage basins

Science Topics term usage Friday, 2009-03-27