Science Topics term usage 2006-05-18

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.)

236	volcanoes
159	earthquakes
72	geographic information systems (GIS)
38	earthquake occurrences
35	mineral resources
32	tectonic processes
32	storms
30	surface water (non-marine)
27	ground water
26	acid deposition
24	energy resources
23	maps and atlases
22	real-time monitoring and reporting
22	tsunamis
21	earth structure
20	streamflow
18	snow and ice cover
18	animals
18	hurricanes
18	invasive species
18	climate change
18	cartography
15	oil resources
15	blizzards
14	water quality
13	geologic history
13	economic geology
13	volcanology
12	meteorites
12	aerial photography
12	endangered species
12	plants (organisms)
12	ground-water flow
11	coastal zones
11	wildlife
11	droughts
11	water resources
11	coelenterates
10	water supply and demand
10	tornadoes

Science Topics term usage Thursday, 2006-05-18