Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
510808 | Computers & Structures | 2009 | 10 Pages |
Abstract
We consider an inverse (time-reverse) problem of thermal evolution of a viscous inhomogeneous incompressible heat-conducting fluid describing dynamics of the Earth’s mantle. Present observations of geophysical fields (temperature, velocity) are incorporated in a three-dimensional dynamic model to determine the initial conditions of the fields. We present and compare numerical techniques for solving the inverse problem: backward advection, variational (adjoint), and quasi-reversibility methods. The methods are applied to restore the evolution of the mantle structures such as rising plumes and descending lithospheric plates.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science Applications
Authors
A. Ismail-Zadeh, A. Korotkii, G. Schubert, I. Tsepelev,