Ultra-fast forward modeling of 3d complicated large-scale gravity problems using an adaptive multi-level fast multipole method

Release time:2016-04-21

Journal:Journal of Geophysical Research: Solid Earth

Place of Publication:AGU

Abstract:We developed a novel fast and accurate forward modeling algorithm for large-scale 3D gravity problems with complicated distributions of density and arbitrary topography using unstructured grids. Our algorithm uses an adaptive multi-level fast multipole (AMFM) method to substantially reduce the computational cost of the gravitational interactions between observation points and mass source elements. A set of arbitrarily distributed observation points is hierarchically constructed on an observation octree, while a source tetrahedral grid is hierarchically constructed on a mass octree. etc.

Note:http://onlinelibrary.wiley.com/doi/10.1002/2016JB012987/full

Co-author:H., Maurer, T., Kalscheuer, J., Tang, Z., Ren

Indexed by:Unit Twenty Basic Research

Discipline:geology

Document Type:J

Translation or Not:no

Date of Publication:2017-04-01

Links to published journals:http://onlinelibrary.wiley.com/doi/10.1002/2016JB012987/full