TY - JOUR
T1 - Green's function retrieval in a field of random water waves
AU - Brown, Michael G.
AU - Lu, Chuntao
N1 - Funding Information:
We thank Brian Haus, Nathan Laxague and David Ortiz-Suslow for assistance with wave tank measurements. We thank Hans Graber, Rafael Ramos and Neil Williams for providing access to the ocean wave measurements analyzed here. This work was supported by the National Science Foundation , grant OCE1129860 , and the Office of Naval Research , grant N000141210182 .
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - It has recently been demonstrated using a variety of wave types that cross-correlating time series of apparently random waves measured at two locations yields an estimate of the Green's function that describes the wave field generated at one of those locations and measured at the other. This procedure can be described as random wave interferometry. In this paper random surface gravity wave interferometry is described theoretically, demonstrated using numerical simulations, and investigated experimentally using both wavetank measurements and ocean wave measurements. Simulations and wavetank measurements are in good agreement with theoretical predictions, but the ocean-measurement-based cross correlations do not yield the predicted structure. Possible explanations are discussed.
AB - It has recently been demonstrated using a variety of wave types that cross-correlating time series of apparently random waves measured at two locations yields an estimate of the Green's function that describes the wave field generated at one of those locations and measured at the other. This procedure can be described as random wave interferometry. In this paper random surface gravity wave interferometry is described theoretically, demonstrated using numerical simulations, and investigated experimentally using both wavetank measurements and ocean wave measurements. Simulations and wavetank measurements are in good agreement with theoretical predictions, but the ocean-measurement-based cross correlations do not yield the predicted structure. Possible explanations are discussed.
KW - Green's function retrieval
KW - Random wave field cross-correlations
KW - Random wave interferometry
KW - Water waves
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U2 - 10.1016/j.wavemoti.2015.08.003
DO - 10.1016/j.wavemoti.2015.08.003
M3 - Article
AN - SCOPUS:84947997296
VL - 60
SP - 8
EP - 19
JO - Wave Motion
JF - Wave Motion
SN - 0165-2125
ER -