Forward and inverse modelling of post-seismic deformation

We consider a new approach to both the forward and inverse problems in post-seismic deformation. We present a method for forward modelling post-seismic deformation in a self-gravitating, heterogeneous and compressible earth with a variety of linear and nonlinear rheologies. We further demonstrate ho...

Full description

Bibliographic Details
Main Authors: Crawford, O, Al-Attar, D, Tromp, J, Mitrovica, JX
Format: Article in Journal/Newspaper
Language:English
Published: Oxford University Press 2017
Subjects:
numerical solutions
inverse theory
transient deformation
dynamics of lithosphere and mantle
Antarctic
Antarc*
British Antarctic Survey
Online Access:https://www.repository.cam.ac.uk/handle/1810/262065
https://doi.org/10.17863/CAM.7310
Description
Summary:We consider a new approach to both the forward and inverse problems in post-seismic deformation. We present a method for forward modelling post-seismic deformation in a self-gravitating, heterogeneous and compressible earth with a variety of linear and nonlinear rheologies. We further demonstrate how the adjoint method can be applied to the inverse problem both to invert for rheological structure and to calculate the sensitivity of a given surface measurement to changes in rheology or time-dependence of the source. Both the forward and inverse aspects are illustrated with several numerical examples implemented in a spherically symmetric earth model. Natural Environment Research Council, British Antarctic Survey

Similar Items