Science Topics term usage 2005-12-01

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.)

203	volcanoes
178	earthquakes
67	tectonic processes
63	geographic information systems (GIS)
56	earthquake occurrences
52	maps and atlases
44	earth structure
42	energy resources
38	mineral resources
38	landslides
31	geologic structure
31	animals
31	tsunamis
30	geologic history
29	ground-water flow
29	rocks and deposits
27	water quality
27	volcanology
27	surface water (non-marine)
26	ground water
25	hazards
24	volcanic activity
23	aerial photography
20	ecological processes
20	floods
20	endangered species
20	contamination and pollution
19	wildlife
18	land surface characteristics
18	real-time monitoring and reporting
18	health and disease
18	nonvascular plants
18	image collections
17	earthquake probabilities
17	oil resources
17	streamflow
17	glaciation
16	erosion
16	coastal zones
16	human impacts

Science Topics term usage Thursday, 2005-12-01