Dr Tristan Salles – EarthByte

Bayeslands: A Bayesian inference approach for parameter uncertainty quantification in Badlands

7 November, 2019 by Danial Azam

Abstract: Bayesian inference provides a rigorous methodology for estimation and uncertainty quantification of unknown parameters in geophysical forward models. Badlands is a landscape evolution model that simulates topography development at various space and time scales. Badlands consists of a number of geophysical parameters that needs estimation with appropriate uncertainty quantification; given the observed present-day ground truth … Read more…

Tectonic, geodynamic and surface process driving forces of Australia’s paleogeography since the Jurassic

7 November, 20197 November, 2019 by Danial Azam

Abstract: Today the eastern highlands of Australia are significantly more elevated than western Australia, but the continent’s geodynamic evolution suggests that the opposite was the case during Cretaceous times, when the Eromanga Sea dominated the eastern Australian landscape. Previous geodynamic and surface processes models have been used to simulate the evolution of this seaway, but … Read more…

EarthByte Honours and Masters Projects 2020

13 September, 201910 September, 2019 by Danial Azam

EarthByte has now released a list of Honours/Masters projects to be offered in 2020. These projects are outlined below. We can also tailor projects to your interests. Feel free to contact us by clicking the supervisor links below. Project Title Supervisor(s) How climate and subsidence control the sedimentation along the Norwegian Margin? Claire Mallard , … Read more…

EarthByte Honours and Masters Projects 2019

27 November, 201811 September, 2018 by Danial Azam

EarthByte has now released a list of Honours/Masters projects to be offered in 2019. These projects are outlined below. Project Title Supervisor(s) How is landscape complexity driving biodiversity over geological time scales? Tristan Salles & Patrice Rey How well are tectonic and climatic signals preserved in the stratigraphic record? Tristan Salles & Claire Mallard Vertical motions … Read more…

Exploring coral reef responses to millennial-scale climatic forcings: insights from the 1-D numerical tool pyReef-Core v1.0

27 July, 2018 by Danial Azam

In a paper published this week in European Geosciences Union – EGUGMD Journal, Tristan Salles, Jodie Rae, Jody M Webster & Belinda Dechnik present a 1-D model of coral reefs’ evolution over centennial to millennial timescales. The model allows to estimate the effects of environmental conditions (such as oceanic variability, sedimentation rate, sea-level fluctuations or tectonics) and ecological coral competition on reef … Read more…

Exploring coral reef responses to millennial-scale climatic forcings: insights from the 1-D numerical tool pyReef-Core v1.0

6 July, 2018 by Danial Azam

Abstract: Assemblages of corals characterise specific reef biozones and the environmental conditions that change spatially across a reef and with depth. Drill cores through fossil reefs record the time and depth distribution of assemblages, which captures a partial history of the vertical growth response of reefs to changing palaeoenvironmental conditions. The effects of environmental factors on … Read more…

Workshop on “Bayeslands: Bayesian inference for Badlands”

1 March, 201916 May, 2018 by Danial Azam

Overview: In recent years, the Bayesian inference has become a popular methodology for the estimation and uncertainty quantification of parameters in geological and geophysical forward models via the posterior distribution. Badlands is a basin and landscape evolution model for simulating topography development at various space and time scales. This workshop will present BayesLands which provides … Read more…

pyBadlands: A framework to simulate sediment transport, landscape dynamics and basin stratigraphic evolution through space and time

7 March, 201917 April, 2018 by Danial Azam

Abstract Understanding Earth surface responses in terms of sediment dynamics to climatic variability and tectonics forcing is hindered by limited ability of current models to simulate long-term evolution of sediment transfer and associated morphological changes. This paper presents pyBadlands, an open-source python-based framework which computes over geological time (1) sediment transport from landmasses to coasts, … Read more…

Untangling The Role Of Climate On Sediment And Reef Evolution Over Millennial Timescales

31 May, 20183 April, 2018 by Danial Azam

Climatic variability like precipitation changes or increase in extreme events such as storms and tropical cyclones is known to significantly modify the Earth’s surface. Yet, our understanding of how sediment dynamics and reef evolution might respond to these changes is still limited. In a recent study, a team of researchers from the University of Sydney’s … Read more…

EarthByte Honours and Masters Projects 2018

10 September, 20186 October, 2017 by Sam Russel

EarthByte has now released a list of Honours/Masters projects to be offered in 2018. These projects are outlined below. Project Title Supervisor(s) Dynamic Earth models, landscape dynamics and basin evolution in Australasia Dietmar Müller, Sabin Zahirovic, Tristan Salles, Rohit Chandra, Sally Cripps (Centre for Translational Data Science) Incorporating modern plate tectonic reconstructions into box models of the deep-time deep-Earth … Read more…

Influence of mantle flow on the drainage of eastern Australia since the Jurassic period

20 October, 201728 September, 2017 by Maxim Adams

Author List: Tristan Salles, Nicolas Flament & Dietmar Müller. Citation: Salles, Tristan & Flament, Nicolas & Müller, Dietmar. (2017). Influence of mantle flow on the drainage of eastern Australia since the Jurassic Period. Geochemistry, Geophysics, Geosystems. 18. . 10.1002/2016GC006617. Abstract: Recent studies of the past eastern Australian landscape from present-day longitudinal river profiles and from mantle flow models … Read more…

Five minutes with Tristan Salles

8 August, 2017 by Sam Russel

Avid traveller and explorer, geophysicist Dr Tristan Salles, discusses his childhood in Africa and his experiences as an early-career researcher. What is your background, and why did you decide to join the University? I grew up in Africa, living in Madagascar, Cameroon and Senegal before moving to France at 17. My dad was an avid lepidopterist [the … Read more…

2017 Artemis HPC Grand Challenge winner

26 June, 201722 June, 2017 by Ruken

Tristan Salles from the School of Geosciences, University of Sydney has been announced as one of four winners of the 2017 Artemis high-performance computing challenge, securing over $2Mio worth of CPU hours over 4 years. Tristan and his collaborators from the EarthByte Group and the Centre for Translational Data Science were allocated the equivalent of … Read more…

Understanding the Deep Carbon Cycle from Icehouse to Greenhouse Climates

16 May, 20178 May, 2017 by Ruken

Sydney Research Excellence Initiative grant (2017-2018) Research area, key questions, significance, and innovation. The planet is experiencing a major transition from an icehouse climate, one dominated by permanent continental ice sheets at high latitudes, to a greenhouse climate that favours ice-free conditions. Although part of the deglaciation trend is influenced by a natural orbital cycle, … Read more…

Badlands v2.0 is released

7 March, 20193 February, 2017 by Ruken

Today version 2.0 of Badlands has been released This release add new capabilities to the code: simulates river entering in the simulation area output of Chi parameter in Hdf5 flow network multi-erodibility layers creation 3D stratigraphic layer displacements This release is compatible with version 1.0.0 and will work with similar XML input files. Download Badlands (source … Read more…

Basin Genesis Hub computer model explains Early Cretaceous eastward flow of ancient Murray River

25 January, 201724 January, 2017 by Carmen Braz

Australia is an outstanding natural laboratory to study the influence of dynamic topography on landscape evolution, having been largely unaffected by tectonic deformation since the Jurassic. Recent studies of the past eastern Australian landscape from present-day longitudinal river profiles and from mantle flow models suggest that the interaction of plate motion with mantle convection accounts for the two phases of large-scale uplift of the region since 120 Ma. … Read more…

Basin Genesis Hub surface processes workshop

14 December, 201613 October, 2016 by Carmen Braz

Greetings from the surface processes workshop using the open-source Badlands code developed by our very own Tristan Salles as part of the Basin GENESIS Hub. Today we covered how to use Docker/Kitematic to download the pyBadlands virtual machine and run the examples (mountain building, delta formation, and so on). … Read more…

Jiabao Zhang’s summer internship in the Basin Genesis Hub

14 October, 201611 October, 2016 by Carmen Braz

Jiabao Zhang, bachelor student at the University of Geosciences in Wuhan, China, visited the Basin Genesis Hub for a month in September 2016 to practice numerical modelling in geomorphology under the supervision of Dr Gilles Brocard and Dr Tristan Salles. … Read more…

SoftwareX – Badlands: A parallel basin and landscape dynamics model

7 March, 20193 October, 2016 by Carmen Braz

Abstract: Over more than three decades, a number of numerical landscape evolution models (LEMs) have been developed to study the combined effects of climate, sea-level, tectonics and sediments on Earth surface dynamics. Most of them are written in efficient programming languages, but often cannot be used on parallel architectures. Here, I present a LEM which … Read more…

Surface Processes Modelling Workshop

26 September, 201626 September, 2016 by Carmen Braz

The EarthByte Group will conduct a 2 days workshop on surface processes modelling on the 13th and 14th of October in the Madsen Building at the School of Geoscience, The University of Sydney, Australia.

The workshop aims to introduce those interested in landscape evolution and source to sink problems to a new open-source code: Badlands. Note that you do not have to be a seasoned modeller to participate. Geomorphologists, tectonicists and sedimentologists interested in testing conceptual models based on field observations are welcome! … Read more…

Computers & Geosciences – Badlands: An open-source, flexible and parallel framework to study landscape dynamics

7 March, 201930 March, 2016 by Ruken

Author List: Tristan Salles, Luke Hardiman Citation: Salles, T., and Hardiman, L. (2016). Badlands: An open-source, flexible and parallel framework to study landscape dynamics. Computers & Geosciences 91 77–89. DOI: 10.1016/j.cageo.2016.03.011 Abstract: In this paper, we propose a minimal numerical model which governing equations describe the following processes: erosion, sedimentation, diffusion and flexure. The model respects conservation … Read more…

Computers & Geosciences – Badlands: An open-source, flexible and parallel framework to study landscape dynamics

7 March, 201930 March, 2016 by Carmen Braz

Salles, T., and Hardiman, L. (2016). Badlands: An open-source, flexible and parallel framework to study landscape dynamics. Computers & Geosciences 91 77–89. DOI: 10.1016/j.cageo.2016.03.011 Badlands: An open-source, flexible and parallel framework to study landscape dynamics

2016 supercomputing resources

15 January, 201615 January, 2016 by Michael Chin

The EarthByte group has been awarded 11 million computing hours, representing the equivalent of k$AU440, to carry out research for the Basin GENESIS Hub on the supercomputers Raijin (National Computational Infrastructure) and Magnus (Pawsey Supercomputing Centre) for 2016 through the National Computational Merit Allocation Scheme (7.25 MSUs, one of the top 4 allocations across all disciplines … Read more…

Opening of ARC Basin Genesis INDUSTRIAL TRANSFORMATION RESEARCH HUB

30 August, 201519 August, 2015 by Michael Chin

Basin GENESIS Hub opening group photo 19 August 2015

The ARC Research Hub for Basin Geodynamics and Evolution of Sedimentary Systems (Basin GENESIS Hub) opened today at a reception held in the Charles Perkins Centre at the University of Sydney. The launch as attended by representatives from Universities, industry, Geoscience Australia, the ARC, the NCI and the Office of the NSW Chief Scientist and Engineer.

The Basin GENESIS Hub will use computer modelling to fine-tune our understanding of the nation’s sedimentary basins, which hold many of the natural resources we use in day-to-day life.

The research will be of fundamental importance to the geo-software industry used by exploration and mining companies, explains Hub Director Professor Dietmar Müller from the University of Sydney. … Read more…

Badlands v1.0 is released

7 March, 201911 August, 2015 by Michael Chin

Today Tristan has released version 1.0 of Badlands, a parallel TIN-based landscape evolution model, built to simulate topography development at various space and time scales. Congratulations Tristan! Download Badlands (source code, documentation and examples) from GitHub here

Basin and Landscape Dynamics (Badlands)

7 March, 201911 August, 2015 by Michael Chin

Basin and Landscape Dynamics (Badlands) is a parallel TIN-based landscape evolution model, built to simulate topography development at various space and time scales. The model is capable of simulating hillslope processes, fluvial incision (erosion/transport/deposition), spatially and temporally varying geodynamic (3D displacements) and climatic forces which can be used to simulate changes in base level, as … Read more…

High horizontal fault displacement rates and landscape evolution

26 August, 201511 August, 2015 by Michael Chin

In this numerical model of landscape evolution we impose over 2 million of years deformation produced with the Underworld software over an initial flat surface, ie a 256 km square box at a resolution of 1 km. On top of the deformed surface, a landscape evolution model, Badlands, is used to simulate both hillslope and … Read more…

Earth’s climate throughout the Phanerozoic

30 November, 201526 July, 2015 by Michael Chin

Project Summary
EarthByte is involved in a series of projects aimed at understanding and modeling Earth’s climate throughout the Phanerozoic. Some of these projects include:

Future Fellowship of Maria Seton on “Oceanic gateways: a primary control on global climate change?”
Basin GENESIS Hub activities, related to the effect of the mantle, crustal deformation, erosion and sedimentary processes on sedimentary basins
ATOM – a coupled atmospheric-ocean circulation code jointly developed by Prof. Roger Grundmann and EarthByte.

EarthByte’s expertise in tectonics, geodynamics and surface process modeling is enhanced by close collaborations with leading palaeoclimate modellers and geochemical oceanographers. … Read more…

Earth's climate throughout the Phanerozoic

26 July, 2015 by Ruken

Project Summary
EarthByte is involved in a series of projects aimed at understanding and modeling Earth’s climate throughout the Phanerozoic. Some of these projects include:

Future Fellowship of Maria Seton on “Oceanic gateways: a primary control on global climate change?”
Basin GENESIS Hub activities, related to the effect of the mantle, crustal deformation, erosion and sedimentary processes on sedimentary basins
ATOM – a coupled atmospheric-ocean circulation code jointly developed by Prof. Roger Grundmann and EarthByte.

The Basin GENESIS Hub

15 October, 201916 November, 2014 by Michael Chin

The ARC Research Hub for Basin Geo-dynamics and Evolution of Sedimentary Systems (Basin Genesis Hub, BGH) brings together a broad range of expertise for the development and application of cutting-edge numerical modelling tools with the aim of improving the understanding of the formation and evolution of basins. The coupling of the evolution of mantle flow, … Read more…