Science Topics term usage 2009-03-23

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.)

1250	volcanoes
746	earthquakes
315	earthquake occurrences
131	maps and atlases
107	real-time monitoring and reporting
97	floods
82	energy resources
70	mineral resources
69	climate change
69	USGS map servers
67	water quality
58	droughts
58	ground water
54	topographic maps
42	remote sensing
41	contamination and pollution
38	avian influenza
37	invasive species
36	fires
33	volcanic activity
31	surface water (non-marine)
30	oil resources
29	geospatial analysis
28	environmental health (human)
24	geologic maps
23	earthquake probabilities
17	health and disease
16	river systems
16	seismology
14	hydrology
14	human impacts
14	acid deposition
13	ecosystems
12	Alaska
11	geologic structure
11	erosion
11	natural gas resources
11	surface water quality
10	pharmaceutical contamination
10	land use and land cover

Science Topics term usage Monday, 2009-03-23