Science Topics term usage 2006-02-23

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.)

224	earthquakes
171	volcanoes
78	earth structure
77	geographic information systems (GIS)
70	streamflow
66	tectonic processes
62	earthquake occurrences
57	ground water
51	energy resources
50	erosion
47	mineral resources
45	surface water (non-marine)
44	water quality
43	real-time monitoring and reporting
37	climate change
36	landslides
35	geologic history
35	tsunamis
31	water properties
29	rocks and deposits
28	topography
28	water supply and demand
26	animals
26	oil resources
26	ocean characteristics
26	maps and atlases
26	land surface characteristics
24	coastal zones
24	contamination and pollution
24	magnetic field (earth)
24	aerial photography
23	storms
21	ground-water flow
20	natural gas resources
20	invasive species
19	endangered species
19	water use
19	acid deposition
19	volcanic activity
18	planetary bodies

Science Topics term usage Thursday, 2006-02-23