Science Topics term usage 2008-03-06

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.)

633	earthquakes
235	earthquake occurrences
206	volcanoes
182	maps and atlases
137	real-time monitoring and reporting
106	mineral resources
97	USGS map servers
85	ground water
82	climate change
74	energy resources
69	surface water (non-marine)
67	water quality
59	avian influenza
55	contamination and pollution
54	remote sensing
52	geospatial analysis
49	invasive species
42	environmental health (human)
36	fires
33	river systems
26	global warming
25	earthquake probabilities
22	floods
21	acid deposition
20	seismology
19	hazards
18	hydrology
17	human impacts
17	animals
16	aquatic ecosystems
15	surface water quality
15	ground-water flow
15	natural gas resources
14	aerial photography
14	hydrogeology
13	topics
13	earth structure
13	oil resources
13	USGS budget
13	geographic information systems (GIS)

Science Topics term usage Thursday, 2008-03-06