Science Topics term usage 2005-04-18

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.)

362	earthquakes
283	volcanoes
121	earthquake occurrences
95	geographic information systems (GIS)
77	surface water (non-marine)
73	ground water
64	tsunamis
59	tectonic processes
57	maps and atlases
56	ground-water flow
52	real-time monitoring and reporting
50	streamflow
43	earth structure
42	landslides
41	hazards
39	water resources
33	mineral resources
33	water quality
32	energy resources
31	hydrology
31	aerial photography
30	geologic structure
29	climate change
29	rocks and deposits
27	animals
25	remote sensing
25	precipitation (atmospheric)
24	river systems
24	stream-gage measurement
22	volcanic activity
22	erosion
22	seismology
21	stream discharge
21	floods
20	geologic history
20	water cycle
19	water use
18	topography
18	wildlife
18	snow and ice cover

Science Topics term usage Monday, 2005-04-18