Science Topics term usage 2009-04-04

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.)

330	earthquakes
187	volcanoes
151	earthquake occurrences
110	maps and atlases
83	real-time monitoring and reporting
53	floods
52	USGS map servers
51	climate change
34	surface water (non-marine)
31	remote sensing
31	topographic maps
30	water quality
28	contamination and pollution
28	energy resources
27	invasive species
27	mineral resources
26	ground water
25	geospatial analysis
20	droughts
17	geologic maps
16	seismology
14	avian influenza
13	river systems
12	environmental health (human)
10	global warming
10	fires
9	oil resources
8	ecosystems
8	desert ecosystems
8	water supply and demand
7	endangered species
7	volcanic activity
7	streamflow
7	plants (organisms)
7	earthquake probabilities
6	seismic methods
6	liquefaction
6	sea-floor characteristics
5	ground-water flow
5	volcanic eruption prediction

Science Topics term usage Saturday, 2009-04-04