Science Topics term usage 2009-04-16

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.)

507	earthquakes
211	volcanoes
198	earthquake occurrences
117	maps and atlases
78	real-time monitoring and reporting
72	floods
63	mineral resources
55	ground water
54	climate change
47	energy resources
44	water quality
43	USGS map servers
41	contamination and pollution
40	topographic maps
38	remote sensing
37	surface water (non-marine)
30	geospatial analysis
25	geologic maps
25	avian influenza
25	invasive species
24	droughts
21	fires
20	earthquake probabilities
19	ground-water flow
19	environmental health (human)
18	seismology
17	river systems
16	oil resources
16	human impacts
15	acid deposition
15	topics
13	erosion
13	animals
12	streamflow
12	land use and land cover
12	global change
12	hydrology
11	drainage basins
11	endangered species
11	health and disease

Science Topics term usage Thursday, 2009-04-16