Science Topics term usage 2011-08-19

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.)

601	earthquakes
228	earthquake occurrences
103	volcanoes
88	maps and atlases
60	real-time monitoring and reporting
39	groundwater
36	mineral resources
32	topographic maps
32	surface water (non-marine)
27	water quality
27	geospatial analysis
27	map interfaces
24	energy resources
23	climate change
19	contamination and pollution
17	droughts
16	environmental health (human)
16	avian influenza
16	tsunamis
15	remote sensing
15	floods
15	invasive species
12	earthquake probabilities
11	groundwater quality
8	microbiology
8	hydrology
8	fires
8	seismology
7	streamflow
7	geologic maps
7	health and disease
7	volcanic activity
6	geochemistry
6	stream discharge
6	acid deposition
6	human impacts
6	erosion
5	geographic information systems (GIS)
5	erbium
5	earth structure

Science Topics term usage Friday, 2011-08-19