Science Topics term usage 2011-05-20

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.)

1588	earthquakes
533	earthquake occurrences
203	volcanoes
111	real-time monitoring and reporting
87	maps and atlases
85	earthquake probabilities
83	floods
54	surface water (non-marine)
53	mineral resources
52	climate change
38	groundwater
31	seismology
29	energy resources
28	remote sensing
27	geospatial analysis
27	water quality
26	droughts
24	map interfaces
22	human impacts
20	topographic maps
20	avian influenza
17	contamination and pollution
17	tsunamis
13	geologic maps
12	tectonic processes
12	fires
12	surface water quality
11	volcanic activity
11	oil resources
10	hydrology
10	environmental health (human)
10	invasive species
9	microbiology
9	endangered species
9	river systems
8	waste treatment and disposal
7	aeromagnetic surveying
7	biodiversity
7	hurricanes
7	health and disease

Science Topics term usage Friday, 2011-05-20