Science Topics term usage 2006-02-20

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.)

178	earthquakes
123	volcanoes
57	geographic information systems (GIS)
52	earthquake occurrences
38	tectonic processes
34	mineral resources
34	landslides
33	earth structure
31	maps and atlases
29	tsunamis
28	real-time monitoring and reporting
22	animals
21	water quality
21	energy resources
20	ground water
19	aerial photography
19	remote sensing
19	rocks and deposits
18	coastal zones
18	image collections
17	droughts
17	geologic history
17	streamflow
17	endangered species
17	acid deposition
17	organisms
16	floods
16	water supply and demand
16	cartography
16	ecosystems
16	hazards
15	water resources
14	erosion
13	earthquake probabilities
13	glaciation
13	seismology
13	biogeography
12	oil resources
12	ground-water flow
12	ecology

Science Topics term usage Monday, 2006-02-20