Science Topics term usage 2009-01-11

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.)

885	earthquakes
382	earthquake occurrences
171	volcanoes
100	maps and atlases
52	real-time monitoring and reporting
52	floods
48	climate change
36	USGS map servers
36	topographic maps
29	energy resources
26	mineral resources
26	invasive species
22	avian influenza
22	ground water
21	water quality
20	droughts
20	surface water (non-marine)
18	environmental health (human)
18	geologic maps
18	geospatial analysis
17	seismology
16	earthquake probabilities
16	contamination and pollution
15	fires
15	volcanic activity
15	earth structure
15	geochemistry
13	tectonic processes
13	remote sensing
8	oil resources
8	animals
8	global warming
8	acid deposition
8	streamflow
8	ground-water quality
7	desert ecosystems
7	hurricanes
7	erosion
7	California
6	ground-water flow

Science Topics term usage Sunday, 2009-01-11