Science Topics term usage 2006-04-21

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.)

250	earthquakes
121	volcanoes
82	earthquake occurrences
77	geographic information systems (GIS)
47	real-time monitoring and reporting
35	tectonic processes
34	energy resources
29	surface water (non-marine)
29	water quality
25	earth structure
25	animals
21	tsunamis
21	global change
20	ground water
19	earthquake probabilities
18	mineral resources
18	geologic history
18	seismology
17	floods
17	climate change
17	earth sciences
17	geology
17	volcanic activity
17	geologic structure
16	cartography
15	hydrology
15	natural resource exploration
15	contamination and pollution
13	geospatial analysis
13	rocks and deposits
13	ground-water flow
13	geospatial datasets
13	remote sensing
13	aerial photography
12	wildlife
12	water supply and demand
12	maps and atlases
12	landslides
12	oil resources
12	sea-floor characteristics

Science Topics term usage Friday, 2006-04-21