Here are some USGS Web pages with more information on seismic refraction method and Anywhere:
The U.S. Geological Survey Ocean Bottom Seismometer Facility
The Ocean Bottom Seismometer facility provides technical support for a variety of scientific investigations ranging from deep crustal structure to gas hydrate and surface sediments.
(Score: 1.000)
What is an Ocean Bottom Seismometer?
Description and uses of the Ocean Bottom Seismometer; a self contained data-acquisition system which free falls to the ocean floor and records seismic data generated by airguns and earthquakes.
(Score: 1.000)
The crustal structure of China from deep seismic sounding profiles
Summary of results of Deep Seismic Sounding (DSS) profiles in China with links to a sample DSS profile, contour map of China with crustal thickness, crustal columns and maps showing profile locations and seismic cata.
(Score: 0.730)
P-wave data from the Indian subcontinent
Compilation of P-wave data from the Indian subcontinent from twenty Deep Seismic Sounding (DSS) profiles using refraction and reflection techniques to provide an estimate of crustal thickness in a transect across the subcontinent.
(Score: 0.658)
Investigating the Chesapeake Bay impact crater
Links to information on the formation and structure of Chesapeake Bay including online reports, recent field work, field work archives, cooperating agencies, bibliography, and links to articles about other terrestrial impact craters.
(Score: 0.475)
Definition:
Geophysical method that is based on the analysis of the times of arrival of signals from an initial ground movement generated by a source, recorded at a variety of distances. Data consists of a series of times versus distances, which are interpreted in terms of the depths to subsurface interfaces and the speeds at which motion travels through the subsurface within each layer. [Colorado Sch. of Mines, link 2002]
