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Linearized Inversion of MASW Data Using Inequality Constraints
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, Near Surface 2007 - 13th EAGE European Meeting of Environmental and Engineering Geophysics, Sep 2007, cp-30-00048
- ISBN: 978-90-73781-81-8
Abstract
Inequality constraint formulation of least squares inversion is a flexible method to insert physical constraints (as well as a priori information) into the inversion process. In MASW (Multichannel Analysis of Surface Waves) inversion this has proved to be useful to stabilize convergence when applied to fundamental-mode dominated data as well as to data containing higher modes of propagation. A reliable S-wave velocity profile can be obtained from inversion of surface wave data if all available information is inserted into the inversion algorithm.