Aside

Contact Info

rogiersbart.github.io

Skills

R, RStudio, Quarto, Stan, Bash, Python, git, GitHub, MODFLOW, MT3D, SQL, markdown, CSS, HTML, LaTeX, MS Office

Domains

Data science, hydrogeology, spatial data, porous media, radiological characterization

Disclaimer

Made with {pagedown}.
Last updated on 2024-03-15.

Main

Bart Rogiers

I am a research scientist and the R community lead at the Belgian Nuclear Research Centre, and also have a seat in the board of the International Association of HydrogeologistsBelgian chapter.

My research interests are currently focused around the introduction of probabilistic programming in radiological characterization and hydrogeology, and leveraging procedural solid texture synthesis for porous media reconstruction, targeting natural and engineered barrier materials considered in the framework of radioactive waste disposal.

I furthermore really enjoy introducing people to the modern side of R, and help them adopt it as their main workhorse for more reproducible science.

Professional Experience

Board member

IAH Belgium (BCH-CBH)

Brussels, Belgium

Present - 2015

Research scientist

Belgian Nuclear Research Centre (SCK CEN)

Mol, Belgium

Present - 2013

Internship

Flanders Environment Agency

Brussels, Belgium

2009 - 2008

Topic River restoration of the Zwarte Beek between Beringen and Diest: Evaluation of the impact on the groundwater system.

Supervisor Lermytte J

Teaching Experience

R: Create command line tools with {optparse}

SCK CEN Learning & development

Mol, Belgium

2023

Format 1-day course

Topics Environment variables, Git Bash, R in a terminal, redirections, command line arguments and options, automated execution.

R: Handle your data with the {tidyverse}

SCK CEN Learning & development

Mol, Belgium

2023

Format 3-day course

Topics Data reading, cleaning, manipulation and visualization, handling specific types, and iteration and nesting.

R: Get started

SCK CEN Learning & development

Mol, Belgium

2023

Format 1-day course

Topics Installing the required software, tweaking the RStudio IDE, managing contributed packages, binding names to values, working with vectors, subsetting R objects, using control flow

Modern R for data science: Up your data viz game

SCK CEN Learning & development

Mol, Belgium

2021 - 2020

Format 1-day course, with editions in 2020 and 2021.

Topics More details on {ggplot2}, {scales} and extensions - Figure design principles - Data visualization types - Animation

Modern R for data science: The core tidyverse, good practices and our corporate environment

SCK CEN Learning & development

Mol, Belgium

2021 - 2019

Format 4-day course, with editions in 2019, 2020 and 2021.

Topics Data reading, cleaning, manipulation and visualization - Iteration with functional programming - Exporting tables and figures - Literate computing - Reproducible workflow

Training course on radioactive waste management

SCK CEN Academy

Mol, Belgium

2024 - 2017

Format 45-min lecture “Characterization techniques used at SCK CEN - Uncertainty quantification” during the 1.5-week radioactive waste management course. Contributed to the editions in 2017, 2021 and 2024.

Topics Taylor expansion - Monte Carlo error propagation - Probabilistic programming - State of the art in radiological waste characterization

Journal papers

See orcid, scholar, or our institutional repository for more extensive and up to date overviews of my scientific output.

Probabilistic radwaste characterization: findings of a multi-method, multi-mockup exercise using interpolation-based surrogate efficiencies.

Annals of Nuclear Energy

194: 110065

2023

Authors Laloy E, Rogiers B, Bielen A, Borella A, Kubinski W, Carasco C, Mathonat C, Boden S.

Improving Bayesian radiological profiling of waste drums using Dirichlet priors, Gaussian process priors, and hierarchical modeling.

Applied Radiation and Isotopes

194: 110691

2023

Authors Laloy E, Rogiers B, Bielen A, Borella A, Boden S.

Estimation of soil radioactivity-depth profiles using Bayesian inversion of borehole gamma spectrometry data.

Journal of Environmental Radioactivity

257: 107077

2023

Authors Hasan MM, Rogiers B, Laloy E, Camps J, Rutten J, Huysmans M.

Characterizing groundwater heat-transport in a complex lowland aquifer using paleo-temperature reconstruction, satellite data, temperature-depth profiles, and numerical models.

Hydrology and Earth System Sciences

26: 5577–5604

2022

Authors Casillas-Trasvina A, Rogiers B, Beerten K, Wouters L, Walraevens K.

2D Inversion of in situ gamma-ray spectrometric measurements of 137Cs for site characterization.

Journal of Environmental Radioactivity

256: 107052

2023

Authors Hasan MM, Camps J, Rogiers B, Laloy E, Rutten J, Boden S, Huysmans M.

Using helium-4, tritium, carbon-14 and other hydrogeochemical evidence to evaluate the groundwater age distribution: the case of the Neogene aquifer, Belgium.

Journal of Hydrology X

17: 100132

2022

Authors Casillas-Trasvina A, Rogiers B, Beerten K, Pärn J, Wouters L, Walraevens K.

Soil radioactivity-depth profiles from regularized inversion of borehole gamma spectrometry data.

Journal of Environmental Radioactivity

243: 106807

2022

Authors Hasan MM, Rogiers B, Laloy E, Rutten J, Camps J, Vidmar T, Huysmans M.

Exploring the hydrological effects of normal faults at the boundary of the Roer Valley Graben in Belgium using a catchment-scale groundwater flow model.

Hydrogeology Journal

30: 133-149

2021

Authors Casillas-Trasvina A, Rogiers B, Beerten K, Wouters L, Walraevens K.

Towards a scientific-based assessment of long-term durability and performance of cementitious materials for radioactive waste conditioning and disposal.

Journal of Nuclear Materials

557: 153201

2021

Authors Jacques D, Phung QT, Perko J, Seetharam SC, Maes N, Liu S, Yu L, Rogiers B, Laloy E

Bayesian inference of 1D activity profiles from segmented gamma scanning of a heterogeneous radioactive waste drum.

Applied Radiation and Isotopes

175: 109803

2021

Authors Laloy E, Rogiers B, Bielen A, Boden S.

INSIDER UC2: the BR3 biological shield preliminary results and future work.

EPJ Nuclear Sciences & Technologies

6: 14

2020

Authors Broeckx W, Rogiers B, Mangelschots N, Vandyck R, Verstrepen G, Boden S.

Development of a user-friendly guideline for data analysis and sampling design strategy.

EPJ Nuclear Sciences & Technologies

6: 16

2020

Authors Desnoyers Y, Rogiers B.

The relation between petrophysical and transport properties of the Boom Clay and Eigenbilzen Sands.

Applied Geochemistry

114: 104527

2020

Authors Jacops E, Rogiers B, Frederickx L, Swennen R, Krooss BM, Amann-Hildenbrand A, Littke R, Bruggeman C.

Nested multiresolution hierarchical simulated annealing algorithm for porous media reconstruction.

Physical Review E

100(5): 053316

2019

Authors Lemmens L, Rogiers B, Jacques D, Huysmans M, Swennen R, Urai JL, Desbois G, Laloy E

Metrology for decommissioning nuclear facilities: Partial outcomes of joint research project within the European Metrology Research Program.

Applied Radiation and Isotopes

134: 351-357

2018

Authors Suran J, Kovar P, Smoldasova J, Šolc J, Van Ammel R, Miranda MG, Russell B, Arnold D, Zapata-Garcia D, Boden S, Rogiers B, Sand J, Peräjärvi K, Holm P, Hay B, Failleau G, Plumeri S, Beck YL, Grísa T.

Bayesian inversion of a CRN depth profile to infer Quaternary erosion of the northwestern Campine Plateau (NE Belgium).

Earth Surface Dynamics

5: 331-345

2017

Authors Laloy E, Beerten K, Vanacker V, Christl M, Rogiers B, Wouters L.

Model-based classification of CPT data and automated lithostratigraphic mapping for high-resolution characterization of a heterogeneous sedimentary aquifer.

PLOS One

12(5): e0176656

2017

Authors Rogiers B, Mallants D, Batelaan O, Gedeon M, Huysmans M, Dassargues A.

Episodic activity of a dormant fault in tectonically stable Europe: The Rauw fault (NE Belgium).

Tectonophysics

699: 146-163

2017

Authors Verbeeck K, Wouters L, Vanneste K, Camelbeeck T, Vandenberghe D, Beerten K, Rogiers B, Schiltz M, Burow Ch, Mees F, De Graeve J, Vandenberghe N.

The usefulness of outcrop analogue air permeameter measurements for analysing aquifer heterogeneity: Quantifying outcrop hydraulic conductivity and its spatial variability.

Hydrological processes

28: 5176-5188

2014

Authors Rogiers B, Beerten K, Smeekens T, Mallants D, Gedeon M, Huysmans M, Batelaan O, Dassargues A.

Multi-scale aquifer characterization and groundwater flow model parameterization using direct push technologies.

Environmental Earth Sciences

72(5): 1303-1324

2014

Authors Rogiers B, Vienken T, Gedeon M, Batelaan O, Mallants D, Huysmans M, Dassargues A

High resolution saturated hydraulic conductivity logging of borehole cores using air permeability measurements.

Hydrogeology Journal

22(6): 1345-1358

2014

Authors Rogiers B, Winters P, Huysmans M, Beerten K, Mallants D, Gedeon M, Batelaan O, Dassargues A

The usefulness of outcrop analogue air permeameter measurements for analysing aquifer heterogeneity: testing outcrop hydrogeological parameters with independent borehole data.

Hydrology and Earth System Sciences

17: 5155-5166

2013

Authors Rogiers B, Beerten K, Smeekens T, Mallants D, Gedeon M, Huysmans M, Batelaan O, Dassargues A.

Demonstrating large-scale cooling in a Variscan terrane by coupled groundwater and heat flow modelling.

Geothermics

51: 71-90

2014

Authors Rogiers B, Huysmans M, Vandenberghe N, Verkeyn M

Derivation of flow and transport parameters from outcropping sediments of the Neogene aquifer, Belgium.

Geologica Belgica

16(3): 129-147

2013

Authors Rogiers B, Beerten K, Smeekens T, Mallants D, Gedeon M, Huysmans M, Batelaan O, Dassargues A

Efficient posterior exploration of a high-dimensional groundwater model from two-stage MCMC simulation and polynomial chaos expansion.

Water Resources Research

49(5): 2664-2682

2013

Authors Laloy E, Rogiers B, Vrugt JA, Mallants D, Jacques D

A critical review of laboratory and in-situ hydraulic conductivity measurements for the Boom Clay in Belgium.

Applied Clay Science

75-76: 1-12

2013

Authors Yu L, Rogiers B, Gedeon M, Marivoet J, De Craen M, Mallants D.

Estimation of hydraulic conductivity and its uncertainty from grain-size data using GLUE and artificial neural networks.

Mathematical Geosciences

44(6): 739-763

2012

Authors Rogiers B, Mallants D, Batelaan O, Gedeon M, Huysmans M, Dassargues A

Evaluating the impact of river restoration on the local groundwater and ecological system: a case study in NE Flanders.

Geologica Belgica

14(3-4): 265-276

2011

Authors Rogiers B, Lermytte J, De Bie E, Batelaan O.

Education

PhD in Geology

SCK CEN & KU Leuven

Mol, Belgium

2013 - 2009

Thesis Conditional Stochastic Simulation of Groundwater Flow and Contaminant Transport in a Sandy Aquifer at Mol/Dessel.

Supervisory committee Batelaan O, Mallants D, Gedeon M, Huysmans M, Dassargues A

Additional members of the jury Vandenberghe N, Swennen R, Vanderborght J, Dietrich P

Master of Science in Geology

KU Leuven, magna cum laude

Leuven, Belgium

2009 - 2007

Thesis Interpretation of the heat-flow density in the deep wells Soumagne, Grand-Halleux and Havelange in Belgium, by means of a numerical coupled heat transport and groundwater flow model.

Promoters Vandenberghe N, Huysmans M

Bachelor of Science in Geology, Option Physics

KU Leuven, cum laude

Leuven, Belgium

2007 - 2004

Thesis The meaning of heat-flow density measurements in the wells Grand-Halleux, Soumagne, Meer and Havelange.

Promoters Vandenberghe N, Huysmans M

Peer reviewing

See orcid for an up to date overview.

Hydrogeology Journal (3)

N/A

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Water Resources Research (3)

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Computers & Geosciences (2)

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Journal of Hydroinformatics (2)

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Mathematical Geosciences (2)

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Toxics (2)

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Advances in Water Resources (1)

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Earth Science Informatics (1)

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Environmental Earth Sciences (1)

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Frontiers in Earth Science (1)

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Journal of African Earth Sciences (1)

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Journal of Environmental Quality (1)

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Journal of Hydrology and Hydromechanics (1)

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Vadose Zone Journal (1)

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Professional development

Note I am using the ISO 8601:2000 standard for truncated date (interval) notation.

Statistics: Basic training course

Claesen J, Amsterdam UMC, --03-01, ---08, ---15

Mol, Belgium

2024

Python: Basic training course

Gupta S, SCK CEN learning & development, --10-19

Mol, Belgium

2023

Learning facilitator (Train the trainer)

Ceelen N, Progress Consulting, --01-16, ---23, --02-16

Mol, Belgium

2023

Train-The-Trainer webinars

Clarijs T & Van Puyvelde L, SCK CEN learning & development, --05-28,--06-03, ---15, ---21, ---25, ---28, ---30

Online

2021

Email - Go for 0 Inbox

Loontiens S, Shortcuts, --06-06

Mol, Belgium

2019

Organize your time

Loontiens S, Shortcuts, --05-06

Mol, Belgium

2019

Querying Data with transact-SQL

RealDolmen, --11-14/15, ---27

Mol, Belgium

2018

Making 3D drawings with Sketchup | Fundamentals

Mangelschots N, SCK CEN Learning & development, --11-12

Mol, Belgium

2018

Git version control

Van Robbroeck K, RealDolmen, --09-27/28

Mol, Belgium

2017

MCNP - basic training course

SCK CEN Academy, --11-08

Mol, Belgium

2016

An introduction to Bayesian computing with INLA

Rue H, --07-08

Mines ParisTech, France

2014

Advanced stochastic simulations

Lantuéjoul C, Romary T, --07-07

Mines ParisTech, France

2014

Short course on underlying R&D for the disposal of radioactive waste

SCK CEN Academy, --03-19/20

Mol, Belgium

2014

Version control with subversion

Bex G-J, ICTS KU Leuven, --02-26

Leuven, Belgium

2013

HPC introduction

Oldenhof M, ICTS KU Leuven, --02-19

Leuven, Belgium

2013

Advanced R programming topics

Wijffels J, BNOSAC, --10-18/19

Leuven, Belgium

2012

Upgrade your written English

Vermeire A, --04-19, --05-03/04

Mol, Belgium

2012

LaTeX - introduction

ICTS KU Leuven, --03-29/30

Leuven, Belgium

2012

Data mining in practice

CS KU Leuven, --02-06/07

Leuven, Belgium

2012

Speedreading

Lernout B, --10-11

Mol, Belgium

2011

Scientific writing & speaking

Vermeire A, --03-02, ---09, ---21, ---28

Mol, Belgium

2011

Global sensitivity analysis techniques for probabilistic groundwater modeling

Mishra S, --09-21

Valencia, Spain

2010

2nd summer school on flow and transport in porous and fractured media

CNRS, --08-16/28

Cargèse, France

2010

Inverse modelling in earth and environmental sciences

Vrugt J, Huisman S, --07-26/29

Leuven, Belgium

2010

Meet the expert in hydrology - Round tables among young and established scientists

Carrera J, --05-05

Vienna, Austria

2010

Short course on geostatistical analysis of environmental data

Goovaerts P, --03-08/12

Gainesville, FL, USA

2010

Introduction to R

ICTS KU Leuven & LStat, --02-22/23

Leuven, Belgium

2010

Multivariate data analysis, with applications

ICTS KU Leuven & LStat, --02-08/10

Leuven, Belgium

2010

Hydrological modelling and uncertainty analysis

Buytaert W, --01-18

Louvain-la-Neuve, Belgium

2010

Grants

SCK CEN PhD scholarship

SCK CEN Academy PhD program

Mol, Belgium

2013 - 2009

Stays abroad

CSIRO Land & Water and Flinders University

Scientific visit, --05-22/06-15

Adelaide, Australia

2013

Student supervision

University promoter in italic.

Aouf A, PhD

SCK CEN & UCLouvain

N/A

Present - 2023

Topic Deep learning for 3D porous media reconstruction of clay and cement-based materials

Supervisors De Vleeschouwer Ch, Laloy E, Rogiers B

Casas Molina V, PhD

SCK CEN & Ghent University

N/A

Present - 2023

Topic Machine learning for accurate and efficient uncertainty quantification in radiological waste characterization

Supervisors Couckuyt I, Laloy E, Rogiers B

Casillas A, PhD

SCK CEN & Ghent University

N/A

2022 - 2018

Topic Assessment of unconventional state variables to constrain groundwater flow models of the Neogene Aquifer in the Campine Basin in Belgium

Supervisors Walraevens K, Rogiers B, Beerten K, Wouters L

Lu M, PhD

SCK CEN & KU Leuven

N/A

Present - 2017

Topic Quantifying and predicting river-aquifer exchange in lowland floodplains (Nete, Demer and Dijle).

Supervisors Huysmans M, Gedeon M, Beerten K, Rogiers B

Moudud H, PhD

SCK CEN & Vrije Universiteit Brussel

N/A

2022 - 2017

Topic In situ methods for high resolution mapping of radioactive soil contamination

Supervisors Huysmans M, Vidmar T, Rogiers B

Lemmens L, PhD

SCK CEN & KU Leuven

N/A

Present - 2016

Topic 3D Porous media reconstruction for natural and engineered radioactive waste confinement barriers – A multiresolution-multiphase approach.

Supervisors Huysmans M, Rogiers B, Laloy E

Neyens C, MSc thesis

Faculty of Science, KU Leuven

N/A

2016

Topic Analysis of pumping tests in a sandy aquifer in Northern Belgium.

Supervisors Huysmans M, Gedeon M, Laloy E, Rogiers B

Janssens L, BSc thesis

Faculty of Science, KU Leuven

N/A

2015

Topic Omzetting van digitale foto’s van ontsluitingen in hydraulische conductiviteit, met behulp van beeldanalyse en luchtpermeameter datasets.

Supervisors Huysmans M, Rogiers B

Hoedemaekers T, BSc thesis

Faculty of Science, KU Leuven

N/A

2015

Topic Slug- en dilutietesten in de Neogene aquifer, in en rond de nucleaire zone te Mol-Dessel- Geel.

Supervisors Huysmans M, Rogiers B, Gedeon M

Bennett G, MSc thesis

Faculty of Engineering, Vrije Universiteit Brussel

N/A

2014

Topic Integration of detailed borehole core measurements and pump test data from the aquifers below the Boom Clay in a groundwater flow model.

Supervisors Huysmans M, Rogiers B, Vandersteen K

Potums L, BSc thesis

Faculty of Science, KU Leuven

N/A

2014

Topic Gedetailleerde karakterisatie van boorkernen uit de diepe aquifers rond de Boomse klei, met behulp van een luchtpermeameter.

Supervisors Huysmans M, Rogiers B

Winters P, BSc thesis

Faculty of Science, KU Leuven

N/A

2012

Topic Haalbaarheidsstudie voor de gedetailleerde opmeting van de hydraulische conductiviteit op boorkernen, met behulp van een luchtpermeameter.

Supervisors Huysmans M, Rogiers B

Examination committees

Nick Janssens, PhD

Department of Earth and Environmental Sciences, KU Leuven

N/A

2022

Thesis Three-dimensional superresolution models for fluid flow simulation, developed for computed tomography (CT) scans for continental carbonates.

George Bennett, PhD

Department of Geology, Ghent University

N/A

2022

Thesis Hydrogeological investigation of a volcanic aquifer system on the flanks of Mount Meru, Northern Tanzania.

Nhu Viet Ha, PhD

Department of Hydrology and Hydraulic Engineering, Vrije Universiteit Brussel

N/A

2016

Thesis Spatio-temporal prediction of land subsidence using GIS-based 3D geological, geotechnical and groundwater flow models in Hanoi city (Vietnam).

Nafyad Serre Kawo, MSc

Interuniversity programme: Master of Science in Physical Land Resources, Universiteit Gent - Vrije Universiteit Brussel

N/A

2013

Thesis Model Based Evaluation of the Protection Zones around the WaterGroep Public Drinking Water Well Field in Huiskens (Korbeek-Lo), Belgium.