Dr Tristan Salles

Tristan Salles-TaingAcademic Staff

[email protected]

Phone: +61 2 8627 4123

Madsen Building F09, Room 454
School of Geosciences
The University of Sydney
Sydney, NSW 2006
Australia

View Tristan’s Sydney Uni page

See below for EarthByte content related to Tristan.

PhD Scholarship Opportunity for Domestic Australian Students

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THE RISE AND DEMISE OF EARTH’S GIANT REEF SYSTEMS   Expression of Interest This PhD scholarship is only available to Australian domestic applicants. Submit your expression of interest for this PhD scholarship opportunity to Dr Sabin Zahirovic via email (sabin.zahirovic@sydney.edu.au) by 30 June 2021 (with the subject line “DECRA-PHD-2021”). In your expression of interest, include … Read more…

Paper in Frontiers of Earth Science: Modeling the Dynamic Landscape Evolution of a Volcanic Coastal Environment Under Future Climate Trajectories

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Modeling the Dynamic Landscape Evolution of a Volcanic Coastal Environment Under Future Climate Trajectories Kyle Manley, T. Salles and R. D. Müller As anthropogenic forcing continues to rapidly modify worldwide climate, impacts on landscape changes will grow. Olivine weathering is a natural process that sequesters carbon out of the atmosphere, but is now being proposed … Read more…

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

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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

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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

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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

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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

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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

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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”

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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

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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

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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

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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

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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

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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

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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

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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

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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

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Murray_RiverAustralia 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…

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SoftwareX – Badlands: A parallel basin and landscape dynamics model

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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

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Badlands imageThe 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…

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

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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

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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

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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

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Basin GENESIS Hub opening group photo 19 August 2015

Basin GENESIS Hub opening group photo 19 August 2015The 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…

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Basin and Landscape Dynamics (Badlands)

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Badlands image

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

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High horizontal fault displacement rates and landscape evolution video featured image

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

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Eocene topo bath

Eocene topo bathProject 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…

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