Science Topics term usage 2005-04-25

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.)

255	earthquakes
169	volcanoes
93	geographic information systems (GIS)
77	tectonic processes
73	earthquake occurrences
70	erosion
64	surface water (non-marine)
63	land subsidence
57	tsunamis
50	maps and atlases
47	energy resources
46	mineral resources
45	earth structure
42	landslides
37	oil resources
37	ground water
37	streamflow
36	aerial photography
36	geologic history
31	rocks and deposits
30	water quality
29	floods
24	geologic structure
22	climate change
22	real-time monitoring and reporting
21	precipitation (atmospheric)
21	seismology
21	geochemistry
21	hazards
20	invasive species
20	water resources
19	image collections
19	land surface characteristics
19	animals
19	ocean sciences
18	global change
18	cartography
18	earthquake probabilities
18	ground-water flow
17	human impacts

Science Topics term usage Monday, 2005-04-25