Science Topics term usage 2009-04-25

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.)

591	earthquakes
321	earthquake occurrences
115	volcanoes
89	maps and atlases
71	real-time monitoring and reporting
55	climate change
51	mountains
49	avian influenza
40	USGS map servers
40	mineral resources
38	energy resources
36	floods
32	contamination and pollution
31	topographic maps
30	water quality
29	droughts
28	remote sensing
27	geospatial analysis
26	ground water
25	invasive species
25	surface water (non-marine)
23	environmental health (human)
16	geologic maps
16	seismology
15	fires
10	global warming
10	earthquake probabilities
10	tectonic processes
10	water supply and demand
9	drainage basins
8	USGS budget
8	earth structure
7	ground-water flow
7	surface water quality
7	topography
6	natural resources
6	volcanic activity
6	topics
5	human impacts
5	aerial photography

Science Topics term usage Saturday, 2009-04-25