Articles | Volume 13, issue 5
Solid Earth, 13, 849–873, 2022
https://doi.org/10.5194/se-13-849-2022
Solid Earth, 13, 849–873, 2022
https://doi.org/10.5194/se-13-849-2022
Method article
04 May 2022
Method article | 04 May 2022

Benchmark forward gravity schemes: the gravity field of a realistic lithosphere model WINTERC-G

Barend Cornelis Root et al.

Data sets

WINTERC-G: a global upper mantle thermochemical model from coupled geophysical–petrological inversion of seismic waveforms, heat flow, surface elevation and gravity satellite data Fullea, Javier; Lebedev, Sergei; Martinec, Zdenek; Celli, Nicolas; https://zenodo.org/record/5730195

Gravity forward modelling benchmark dataset Bart Root https://doi.org/10.4121/19279163.v1

Model code and software

Global Spherical Harmonic package (GSH) Bart Root https://github.com/bartroot/GSH

Tesseroids Leonardo Uieda https://github.com/leouieda/tesseroids/

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Short summary
Several alternative gravity modelling techniques and associated numerical codes with their own advantages and limitations are available for the solid Earth community. With upcoming state-of-the-art lithosphere density models and accurate global gravity field data sets, it is vital to understand the differences of the various approaches. In this paper, we discuss the four widely used techniques: spherical harmonics, tesseroid integration, triangle integration, and hexahedral integration.