Science Topics term usage 2005-05-23

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.)

206	earthquakes
127	volcanoes
76	geographic information systems (GIS)
51	earthquake occurrences
48	surface water (non-marine)
38	streamflow
34	ground water
33	earth structure
32	tsunamis
31	energy resources
31	ground-water flow
30	mineral resources
27	seismology
27	maps and atlases
26	landslides
26	tectonic processes
24	hazards
23	topography
23	aerial photography
22	animals
21	geologic structure
20	acid deposition
19	water quality
18	geologic history
18	rocks and deposits
17	floods
16	cartography
16	map coordinate systems
16	stream-gage measurement
16	wildlife
16	hydrology
15	human impacts
15	birds
14	ocean characteristics
14	sea-floor characteristics
13	natural resources
13	precipitation (atmospheric)
13	health and disease
13	geography
13	remote sensing

Science Topics term usage Monday, 2005-05-23