@inproceedings{a6b1c34d06b24d86a0f07556fefb2bc7,
title = "The virtual refraction: A case study at the Boise hydrogeophysical research site",
abstract = "We use seismic refraction interferometry to determine the relative depth to water table in a near surface seismic survey. By summing crosscorrelations of wavefields at two receivers from multiple sources we create a virtual shot record. The virtual shot record shows a refraction event that intercepts zero offset at zero time. We term this the virtual refraction, which has the velocity of the second layer. The virtual shot record allows for easier interpretation by suppressing uncorrelated noise, and easier picking of the refraction. Using the virtual shot record with the correlation gather and real shot record we can determine the velocity of the first layer and depth to the refractor. We show that the spurious refractor is present in field data and can be used to extract subsurface properties such as interface depth and seismic velocities.",
author = "Nichols, \{Joshua D.\} and Dylan Mikesell and \{Van Wijk\}, Kasper",
note = "Publisher Copyright: {\textcopyright} 1996-2018 Society of Exploration Geophysicists All Rights Reserved.; 79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009 ; Conference date: 25-10-2009 Through 30-10-2009",
year = "2009",
doi = "10.1190/1.3255099",
language = "English",
isbn = "9781615675661",
series = "79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009",
publisher = "Society of Exploration Geophysicists",
pages = "1345--1349",
booktitle = "79th Society of Exploration Geophysicists International Exposition and Annual Meeting 2009, SEG 2009",
}