Science Topics term usage 2011-08-21

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.)

386	earthquakes
122	earthquake occurrences
108	volcanoes
63	maps and atlases
50	real-time monitoring and reporting
28	groundwater
24	map interfaces
20	topographic maps
19	surface water (non-marine)
18	mineral resources
16	avian influenza
15	climate change
14	floods
14	geospatial analysis
13	geologic maps
13	contamination and pollution
12	invasive species
11	energy resources
11	United States
11	water quality
10	water use
10	volcanic activity
10	earthquake probabilities
9	endangered species
9	earth structure
8	droughts
8	seismology
7	human impacts
7	life sciences
7	geologic history
6	geologic structure
6	remote sensing
6	river systems
6	tsunamis
6	groundwater flow
6	land surface characteristics
6	water supply and demand
6	geochemistry
5	soil chemistry
5	land use and land cover

Science Topics term usage Sunday, 2011-08-21