Science Topics term usage 2009-06-10

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.)

552	earthquakes
247	earthquake occurrences
160	volcanoes
123	maps and atlases
93	real-time monitoring and reporting
64	USGS map servers
52	topographic maps
45	mineral resources
44	surface water (non-marine)
44	energy resources
44	water quality
41	climate change
40	ground water
39	floods
35	geospatial analysis
32	remote sensing
26	avian influenza
24	earthquake probabilities
23	droughts
23	contamination and pollution
20	invasive species
18	environmental health (human)
18	geologic maps
18	fires
16	seismology
13	streamflow
13	oil resources
12	human impacts
12	river systems
12	natural gas resources
11	tectonic processes
11	desert ecosystems
10	aquatic ecosystems
10	geographic information systems (GIS)
9	surface water quality
9	hazards
9	economic geology
9	land surface characteristics
8	health and disease
8	ground-water flow

Science Topics term usage Wednesday, 2009-06-10