Science Topics term usage 2011-04-01

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.)

1492	earthquakes
483	earthquake occurrences
238	volcanoes
105	acid deposition
101	maps and atlases
84	real-time monitoring and reporting
63	earthquake probabilities
51	groundwater
47	climate change
44	floods
42	map interfaces
41	surface water (non-marine)
39	mineral resources
32	energy resources
31	seismology
31	geospatial analysis
28	tsunamis
24	topographic maps
22	remote sensing
19	droughts
19	water quality
17	invasive species
17	geologic maps
17	volcanic activity
16	oil resources
13	fires
12	contamination and pollution
11	environmental health (human)
11	avian influenza
11	tectonic processes
10	hydrology
9	hydrogeology
8	streamflow
7	gravitational field (earth)
6	groundwater flow
6	bathymetry
6	drainage basins
6	soil resources
6	geologic history
6	endangered species

Science Topics term usage Friday, 2011-04-01