S12B:
Reliability of the Green's Function Extracted from Ambient Noise I

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Session ID#: 18043

Session Description:
Ambient-noise based seismological techniques have been used for understanding the 3D/4D Earth’s properties such as structure, stiffness, and attenuation in various scales. The key for the precise estimation of these parameters is the accuracy of the Green’s function extracted, which relies on, for example, ambient-noise energy distribution, receiver coverage, and appropriate signal processing.

In this session, we focus on theoretical and methodological approaches for extracting more accurate Green’s functions, and their applications. We invite contributions of novel processing and data acquisition (e.g., C3, double beamforming, multi-dimensional deconvolution (MDD), or very dense receiver array) to overcome azimuthal variation of ambient noise energy. Presentations related to amplitudes extraction, higher-mode surface waves, Love waves, or body waves in addition to the phases of the fundamental-mode Rayleigh waves are highly encouraged. We also welcome studies of the usage of multi-component signals for ambient-noise correlation, which can decompose different wave types.

Primary Convener:  Nori Nakata, University of Oklahoma, ConocoPhillips School of Geology and Geophysics, Norman, OK, United States
Conveners:  Nori Nakata, University of Oklahoma, ConocoPhillips School of Geology and Geophysics, Norman, OK, United States and Zack Spica, University of Michigan, Ann Arbor, MI, United States
Chairs:  Zack Spica, University of Michigan, Ann Arbor, MI, United States and Nori Nakata, University of Oklahoma, ConocoPhillips School of Geology and Geophysics, Norman, OK, United States
OSPA Liaison:  Zack Spica, University of Michigan, Ann Arbor, MI, United States
Index Terms:

7203 Body waves [SEISMOLOGY]
7219 Seismic monitoring and test-ban treaty verification [SEISMOLOGY]
7255 Surface waves and free oscillations [SEISMOLOGY]
7294 Seismic instruments and networks [SEISMOLOGY]

Abstracts Submitted to this Session:

Phase bias estimation and correction for global coda correlations: Bayesian optimization of a non-diffuse wavefield (198836)
Julien Chaput1, Hsin-Hua Huang2, Richard C Aster3, Fan-Chi Lin4 and Victor C Tsai2, (1)Colorado State University, Fort Collins, CO, United States, (2)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, (3)Colorado State University, Geosciences Department, Fort Collins, United States, (4)University of Utah, Salt Lake City, UT, United States
Synthesis of body-wave information from global earthquake coda correlation: A numerical evaluation (180852)
Hsin-Hua Huang1, Victor C Tsai1, Fan-Chi Lin2, Weitao Wang3 and Julien A Chaput4, (1)California Institute of Technology, Seismological Laboratory, Pasadena, CA, United States, (2)University of Utah, Salt Lake City, UT, United States, (3)Institute of Geophysics, China Earthquake Administration, Beijing, China, (4)University Joseph Fourier Grenoble, Grenboble, France
Cross-Validation of Ambient-Noise and Earthquake-Based Observations of Love- and Rayleigh-wave dispersio (137997)
Lapo Boschi, Sorbonne Université, ISTeP Institut des Sciences de la Terre de Paris, Paris Cedex 05, France, Emanuel Kaestle, ISTeP Institut des Sciences de la Terre de Paris, Paris Cedex 05, France, Riaz Ahmed Soomro, Institute of Geo Sciences, Kiel, Germany, Cornelis Weemstra, Delft University of Technology, Delft, Netherlands and Thomas Meier, Kiel University, Institute of Geosciences, Kiel, Germany
Seismic ambient noise denoising: time-scale phase-weighted stack and beyond (126140)
Sergi Ventosa1, Martin Schimmel1 and Eleonore Stutzmann2, (1)ICTJA-CSIC, Barcelona, Spain, (2)IPGP, Institut de Physique du Globe de Paris, Paris, France
Obtaining Reliable Green's Function Amplitudes from the Recorded Ambient Seismic Field (Invited) (122424)
Loïc Viens1, Hiroe Miyake1, Marine Denolle2, Shin'ichi Sakai3 and Shigeki Nakagawa1, (1)Earthquake Research Institute, University of Tokyo, Tokyo, Japan, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, United States, (3)Earthquake Research Institute, The University of Tokyo, Tokyo, Japan
Application of seismic interferometry by multidimensional deconvolution to ambient seismic noise recorded in Malargüe, Argentina (172441)
Cornelis Weemstra1, Deyan Draganov1, Elmer Ruigrok2, Jürg Hunziker3, Martin Gomez4 and Cornelis P A Wapenaar1, (1)Delft University of Technology, Geoscience and Engineering, Delft, Netherlands, (2)Royal Netherlands Meteorological Institute, Seismology and Acoustics, De Bilt, Netherlands, (3)University of Lausanne, Lausanne, Switzerland, (4)Argentina National Atomic Energy Commission, Bariloche, Argentina
Seismic Interferometry at a Large, Dense Array: Capturing the Wavefield at the Source Physics Experiment (151641)
Eric Matzel, Robert J Mellors and Steven Alan Magana-Zook, Lawrence Livermore National Laboratory, Livermore, CA, United States
The Microtremor H/V Spectral Ratio: The Physical Basis of the Diffuse Field Assumption (Invited) (123087)
Francisco J Sanchez-Sesma, UNAM National Autonomous University of Mexico, Mexico City, Mexico

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