Science Topics term usage 2009-10-28

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.)

521	earthquakes
235	volcanoes
214	earthquake occurrences
127	maps and atlases
98	real-time monitoring and reporting
80	climate change
78	mineral resources
72	ground water
65	floods
63	map interfaces
62	contamination and pollution
61	energy resources
55	topographic maps
47	surface water (non-marine)
44	water quality
43	geospatial analysis
38	remote sensing
37	droughts
35	avian influenza
34	invasive species
34	environmental health (human)
32	seismology
31	human impacts
27	earthquake probabilities
25	fires
23	global warming
19	natural gas resources
18	oil resources
18	ground-water quality
18	geologic maps
16	acid deposition
16	geographic information systems (GIS)
16	global change
15	animals
15	earth structure
15	transect sampling
15	health and disease
15	river systems
14	natural resources
13	surface water quality

Science Topics term usage Wednesday, 2009-10-28