Science Topics term usage 2008-12-22

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.)

379	earthquakes
173	earthquake occurrences
84	maps and atlases
68	volcanoes
57	real-time monitoring and reporting
55	USGS map servers
40	climate change
38	topographic maps
31	geospatial analysis
27	avian influenza
26	mineral resources
24	remote sensing
23	ground water
23	invasive species
22	droughts
22	floods
22	water quality
22	contamination and pollution
21	energy resources
20	surface water (non-marine)
15	geologic maps
13	fires
13	earthquake probabilities
12	ground-water flow
11	seismology
11	acid deposition
10	environmental health (human)
8	USGS budget
8	USGS Quadrangles
8	surface water quality
8	hydrology
7	earth structure
7	aerial photography
7	gravitational field (earth)
7	land use and land cover
7	coal resources
7	snow and ice cover
7	volcanic activity
6	geologic processes
6	water properties

Science Topics term usage Monday, 2008-12-22