Science Topics term usage 2009-06-11

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.)

403	earthquakes
175	earthquake occurrences
156	volcanoes
120	maps and atlases
71	real-time monitoring and reporting
65	USGS map servers
57	energy resources
50	ground water
49	mineral resources
48	floods
48	topographic maps
45	geospatial analysis
43	surface water (non-marine)
40	water quality
40	climate change
37	droughts
37	remote sensing
34	contamination and pollution
29	invasive species
29	geologic maps
24	avian influenza
20	environmental health (human)
15	fires
14	geographic information systems (GIS)
13	earthquake probabilities
12	seismology
11	river systems
11	oil resources
11	surface water quality
10	animals
10	earth structure
10	hydrology
10	ecosystems
10	desert ecosystems
9	estuarine ecosystems
9	California
8	volcanic eruption prediction
8	USGS budget
8	tectonic processes
8	acid deposition

Science Topics term usage Thursday, 2009-06-11