UWGeodynamics: A teaching and research tool for numerical geodynamic modelling

Beucher, Romain; Moresi, Louis; Giordani, Julian; Mansour, John; Sandiford, Dan; Farrington, Rebecca; Mondy, Luke; Mallard, Claire; Rey, Patrice; Duclaux, Guillaume; Kaluza, Owen; Laik, Arijit; Morón, Sara

doi:10.21105/joss.01136

Cited by 28 publications

(26 citation statements)

References 4 publications

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“…Underworld2 is utilised by the UWGeodynamics Python module (Beucher et al, 2019), which provides a more structured interface to geodynamics model construction. It has enabled numerous recent publications, including Beall & Moresi (2018), Mériaux, May, Mansour, Chen, & Kaluza (2018) and .…”

Section: Discussionmentioning

confidence: 99%

Underworld2: Python Geodynamics Modelling for Desktop, HPC and Cloud

Mansour¹,

Giordani²,

Moresi³

et al. 2020

JOSS

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Section: Discussionmentioning

confidence: 99%

Underworld2: Python Geodynamics Modelling for Desktop, HPC and Cloud

Mansour¹,

Giordani²,

Moresi³

et al. 2020

JOSS

Self Cite

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“…Starting from the 1970s, an increasing number of sophisticated, physics-based models have been developed and applied to the study of the different Earth's system compartments, from global deformation and mantle convection (e.g. Beucher et al, 2019;Choi et al, 2013;Gerya, 2011;Heister et al, 2017;Kronbichler et al, 2012;Moresi & Lenardic, 1999;Popov & Sobolev, 2008) to basin and reservoir dynamics (e.g. Cacace & Jacquey, 2017;Cacace & Scheck-Wenderoth, 2016;Jacquey et al, 2018;Poulet et al, 2017;Räss et al, 2017;Rutqvist, 2011).…”

Section: Introductionmentioning

confidence: 99%

Multiphysics Modeling of a Brittle‐Ductile Lithosphere: 1. Explicit Visco‐Elasto‐Plastic Formulation and Its Numerical Implementation

Jacquey

Cacace

2020

JGR Solid Earth

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The long-term strength of the lithosphere is controled by two different modes of deformation: a brittle-like, effective pressure-sensitive behavior at shallow crustal depth, which gradually transits to a thermally activated ductile flow rheology with increasing depth. All applications dealing with long-term tectonics therefore share the necessity to describe in a consistent way the multiphysics coupling among the different deformation mechanisms controlling the bulk behavior of the lithosphere. We describe an efficient numerical implementation of a consistent visco-elasto-plastic rheology suitable to describe the first-order aspects of continental rock masses. Different from typical long-term geodynamics numerical frameworks, we explicitly account for both volumetric and deviatoric response of lithospheric rocks to applied loads. Plastic correction to a viscoelastic stress state is introduced via a non-associative Drucker-Prager model, without resorting to the assumption of a plastic limiter. The transient behavior of crustal and lithospheric rocks is accounted for by an overstress (rate-dependent) viscoplastic rheology, which additionally helps solving for numerical issues related to plastic strain accumulation even in the absence of energetic feedbacks. When applied to the study of the dynamics of plume-lithosphere interactions, our implementation is able to reproduce a surface topography with complex multiharmonic wavelength patterns in agreement with observations. In the final chapter, we discuss main limitations of the current rheological description when applied to the study of transient semi-brittle rock behavior. These aspects are tackled in a companion paper, where a thermodynamically consistent formulation extending the current numerical description is presented.

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“…In addition, such approaches are unable to properly explore potential feedback mechanisms between each of the Earth's components. In fact, only a handful of these models are able to account more completely for the dynamics of the lithosphere and mantle, the role of sedimentation, and a more quantitative representation of climate relative to its interactions with topography (such as orographic rain) (Beaumont et al, 1992;Salles et al, 2011;Bianchi et al, 2015;Thieulot et al, 2014;Yang et al, 2015;Salles et al, 2017;Beucher et al, 2019). When made possible, it is often realised through the coupling of specialised numerical models involving the expertise of geodynamicists, geophysicists, and Earth's surface and atmospheric scientists.…”

Section: Introductionmentioning

confidence: 99%

eSCAPE: Regional to Global Scale Landscape Evolution Model v2.0

Salles

2019

Geosci. Model Dev.

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Abstract. The eSCAPE model is a Python-based landscape evolution model that simulates over geological time (1) the dynamics of the landscape, (2) the transport of sediment from source to sink, and (3) continental and marine sedimentary basin formation under different climatic and tectonic conditions. The eSCAPE model is open-source, cross-platform, distributed under the GPLv3 licence, and available on GitHub (http://escape.readthedocs.io, last access: 23 September 2019). Simulated processes rely on a simplified mathematical representation of landscape processes – the stream power and creep laws – to compute Earth's surface evolution by rivers and hillslope transport. The main difference with previous models is in the underlying numerical formulation of the mathematical equations. The approach is based on a series of implicit iterative algorithms defined in matrix form to calculate both drainage area from multiple flow directions and erosion–deposition processes. The eSCAPE model relies on the PETSc parallel library to solve these matrix systems. Along with the description of the algorithms, examples are provided to illustrate the model current capabilities and limitations. It is the first landscape evolution model able to simulate processes at the global scale and is primarily designed to address problems on large unstructured grids (several million nodes).

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UWGeodynamics: A teaching and research tool for numerical geodynamic modelling

Cited by 28 publications

References 4 publications

Underworld2: Python Geodynamics Modelling for Desktop, HPC and Cloud

Underworld2: Python Geodynamics Modelling for Desktop, HPC and Cloud

Multiphysics Modeling of a Brittle‐Ductile Lithosphere: 1. Explicit Visco‐Elasto‐Plastic Formulation and Its Numerical Implementation

eSCAPE: Regional to Global Scale Landscape Evolution Model v2.0

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