dr.ir. P.C. Roos (Pieter)

Associate Professor

About Me


  • 2006: Certificate of Basic Teaching Competences (29/6/2006; now BKO, formerly known as DUIT)
  • 2004: Ph.D. degree at University of Twente. See research below
  • 1999: M.Sc. Applied Mathematics, University of Twente, cum laude including practical training at ABB Research Center (Baden, Switzerland) and M.Sc. project on variational modelling of river cross-sections.


  • 2022-present: UT Teaching & Learning Fellow (0.2 fte, theme 'digitalisation')
  • 2017-present: Associate professor
  • 2018-2022: Location director of UT/VU BSc-programme Mechanical Engineering
  • 2010-2017: Assistant professor
  • 2006-2010: Assistant professor on personal STW-VENI grant
  • 2004-2006: Postdoc in Prof. Hulscher’s VICI project
  • 2000-2004: PhD candidate at University of Twente
  • 1999-2000: Visiting researcher at University of Genova (on NUFFIC Talentenbeurs)


Earth & Environmental Sciences
Bottom Friction
Sand Extraction
Sand Wave
Tidal Modeling


van der Sande, W. M. , Roos, P. C., Gerkema, T. , & Hulscher, S. J. M. H. (2023). Linear and nonlinear modeling of estuarine sand dunes. Abstract from Schelde-Ems workshop 2023, Antwerpen, Belgium.
Porcile, G. , Damveld, J. H. , Roos, P. C., Blondeaux, P., & Colombini, M. (2023). Modeling the Genesis of Sand-Starved Dunes in Steady Currents. Journal of geophysical research: Earth surface, 128(1), [e2022JF006796]. https://doi.org/10.1029/2022JF006796
van Veelen, T. J. , Roos, P. C. , & Hulscher, S. J. M. H. (2023). On elevation and migration: a model for sandbank dynamics in sediment-scarce seas. In A. Valance, T. Garlan, A. Crave, & A. Gangloff (Eds.), MARID VII, 7th International Conference on Marine and River Dune Dynamics 2023 (pp. 321-325). University of Rennes 1.
van der Sande, W. M. , Roos, P. C., Gerkema, T. , & Hulscher, S. J. M. H. (2023). Nonlinear modeling of estuarine sand dunes: first results with unidirectional flow. In A. Valance, T. Garlan, A. Crave, & A. Gangloff (Eds.), MARID VII, 7th International Conference on Marine and River Dune Dynamics 2023 (pp. 279-285). University of Rennes 1.
Portos - Amill, L. , Roos, P. C. , Damveld, J. , & Hulscher, S. J. M. H. (2023). Tidal sand waves on the lower shoreface: effects on basin-scale hydrodynamics. In A. Valance, T. Garlan, A. Crave, & A. Gangloff (Eds.), MARID VII, 7th International Conference on Marine and River Dune Dynamics 2023 (pp. 245-251). University of Rennes 1.
Other Contributions


  • Roos, P.C., Seabed Pattern Dynamics and Offshore Sand Extraction, Ph.D. thesis, University of Twente, The Netherlands, ISBN 90-365-2067-3, 2004. [to receive a hardcopy, please send me an email]

Supervision of Ph.D. students

  • Laura Portos Amill (UT, promotor). In progress. Starting date: September 2022.
  • Wessel van der Sande (UT, promotor). In progress. Starting date: April 2019
  • Mariana Pardal (Rio de Janeiro State University, Brazil, co-supervision during visit at UT). 1/2019-6/2019.
  • Koen Reef (UT, co-promotor). Dissertation: "Exploratory modelling of barrier coast dynamics" (defense: 3-3-2022)
  • Zhou Jieqiong (Zhejiang University, China, co-supervision during visit at UT). 9/2016-9/2017.
  • Johan Damveld (UT, co-promotor). Dissertation: "The feedbacks among tidal sand waves, benthic organisms and sediment sorting processes"(defense: 30-10-2020)
  • Geert Campmans (UT, co-promotor). Dissertation: "Modeling storm effects on tidal sand waves" (defense: 31-08-2018).
  • Wenlong Chen (UT, co-promotor). Dissertation: “Idealised modelling of storm surges in large-scale coastal basin” (defense: 15-12-2015).
  • Mohit Kumar (TU Delft, co-promotor). Dissertation: "Three-dimensional model for estuarine turbidity maxima in tidally dominated estuaries. An idealized modelling approach" (defense: 30-11-2018)
  • Dr ir L.L. Dorst (UT, co-promotor). Dissertation: “Estimating sea floor dynamics in the Southern North Sea to improve bathymetric survey planning” (defense: 4-9-2009).
  • Dr ir F.M. Sterlini (UT, co-supervision). Dissertation: “Modelling sand wave variation” (defense: 12-6-2009).
  • Dr ir H.H. van der Veen (UT, co-supervision). Dissertation: “Natural and human induced seabed evolution” (defense: 21-2-2008).


  • External committee member in Phd Defence of: R.L. Brouwer (TU Delft, 30-9-2013), Bing Yuan (Utrecht University, 13-7-2017), Rajapaksha Mudiyanselage Janaka Bamanuwala (UT, 16-4-2020), Roeland C. van de Vijsel (RUG, 19-3-2021)
  • External examiner for Van Long Huynh (University of Nottingham, 4-12-2018), Gaetano Porcile (Universitá di Genova, 2019), Thomas Boelens (UGent, 4 June 2020)
  • Advisor for Rijkswaterstaat’s research agenda on sandy coast/shoreface (17-2-2022, 24-11-2022)
  • Co-organizer of NCK Days 2021, held online 25-26 March 2021 by NIOZ and University of Twente
  • Organizer of NCK-theme day on Offshore Activities and Seabed Evolution (OASE), organized by Universiteit Twente (Roos & Borsje), Utrecht, 6 November 2018
  • Invited speaker at NCK theme day on Wadden Sea, Leeuwarden, 17 May 2019
  • Keynote speaker at MARID VI, 1-3 April, 2019
  • Invited speaker at NCK-theme day on Wadden Sea on the sediment balance of the Wadden Sea, Leiden, 10 October 2014
  • Keynote speaker at EGU2013, session OS2.1 (Ocean Sciences), Vienna, 8 April 2013
  • 1st prize for the best presentation at NCK days 2010 (see Roos & Schuttelaars 2010).
  • Organizer of workshop on impact of mega-scale sand extraction on the North Sea (27 April 2010)
  • Member of NCG-KNAW Netherlands Geodetic Committee, subcommittee ‘Marine Geodesy’ (since November 2009)
  • Participation in Building with Nature, project HK2.1 “Ecodynamic design of a dredging area”, on the ecological landscaping of sand extraction sites (2008-2010).
  • Jury member best PhD paper Twente Water Week (Twente Water Centre): 2014, 2015, 2016.
  • Reviewer for the following scientific journals: Nature Geosciences, Reviews of Geophysics, Geophysical Research Letters, Journal of Fluid Mechanics, Journal of Geophysical Research, Continental Shelf Research, Ocean Dynamics, Journal of Applied Mathematics, Coastal Engineering, Journal of Sedimentary Research, Nonlinear Processes in Geophysics, Environmental Modelling and Software, Chinese Journal of Oceanology and Limnology, Ocean Science Discussions, Marine Geology, Ocean Modelling, Frontiers in Marine Science, Earth Surface Processes & Landforms.

UT Research Information System



  • Winner Central Educational Award University of Twente 2017
  • 4x Teacher of the year Civil Engineering (& Management): 2013, 2014, 2015, 2017
  • 11x Nominations for Teacher of the Year Civil Engineering & Management: 2007, 2008, 2010, 2011, 2012, 2013, 2014, 2015, 2017, 2020, 2022


  • Course Fluid Mechanics 1 in Module 2; 2015-date
  • Project in Module 2: “Reservoir in Blue Nile”; 2013-2015
  • Tutor in Module 3; 2013-2016
  • Mathematical Physics of Water Systems (course code: 19540090): 2005-date
  • Marine Dynamics (course code: 195400800): 2003-2017
  • Marine Systems (course code: 195400240): 2004, 2011
  • Supervision of MSc projects, BSc projects

Other teaching

  • C2-score on TCP English Language Class Assessment (6/3/2014)
  • Guest speaker at Universiteit van Nederland (2019): “Waarom spelen sommige wiskundigen graag in de zandbank?”
  • Teacher panel member of ConcepT Symposium: 2015, 2016, 2017.
  • Guest lecturer at summer schools: NCK Texel (2011. 2019), Utrecht Tides (2018), ENSY Granada (2019)
  • Chairman of Education Committee Civil Engineering (OLC-CiT, 2009-Sept. 2013), staff member (Sept. 2013-March 2018)
  • Supervisor of group research project at international summer school in Motril (Spain, 2007).
  • Guest lecturer at M.Sc.-course on biogeomorphology (TU Delft, 2006 and 2007)
  • Supervisor of group research project at NCK-summer school in Texel (Netherlands, 2005)
  • Guest lecture on large-scale offshore seabed morphology at Tutorial Course during international ECUA’2004 conference on underwater acoustics (Delft, The Netherlands)

Affiliated Study Programmes



Courses Academic Year  2022/2023

Courses in the current academic year are added at the moment they are finalised in the Osiris system. Therefore it is possible that the list is not yet complete for the whole academic year.

Courses Academic Year  2021/2022


  • 2022-present: supervision of Ph.D. student Laura Portos-Amill (in progress)
  • 2019-present: supervision of Ph.D. student Wessel van der Sande (in progress)
  • 2017-2022: supervision of Ph.D. student Koen Reef on WADSnext! project
  • 2015-2020: supervision of Ph.D. student Johan Damveld on NWO/ALW SANDBOX project
  • 2014-2020: project leader of STW project SMARTSEA (TKI Maritime call) and daily supervision of Ph.D. student Geert Campmans.
  • 2011-2018: Co-supervision of Ph.D. student Mohit Kumar (TUD)
  • 2011-2015: SEACOS project in CSC Talent Training. Daily supervision of Ph.D. student Wenlong Chen
  • 2011-2015: SEACOS project in CSC Talent Training. Daily supervision of Ph.D. student Wenlong Chen
  • 2006-2010: STW-VENI project on “Transient Dynamics in the Morphology of Coastal Seas”.
  • 2004-2006: Post doc in VICI project Prof. Dr. S.J.M.H. Hulscher. Further activities: contact person of EUMARSAND on behalf of University of Twente, collaboration with Christophe Brière, daily supervision of L.L. Dorst’s Ph.D project.
  • 2000-2004: Ph.D. project on the morphodynamics of large-scale offshore sand extraction, in relation to rhythmic seabed patterns such as tidal sandbanks. Promotors: Prof. Dr Suzanne Hulscher, and Prof. Dr Ir Huib de Vriend. Research partly took place within the EU-project HUMOR (HUman interaction with large-scale MORphological evolution), contract number EVK3-CT-2000-00037, started in 2001.
  • 1999-2000: one year stay at University of Genova, Italy, EU-funded within ‘Talentenprogramma’ of the Nuffic. Research on the modelling of three-dimensional sand ripple patterns, supervised by Prof. Paolo Blondeaux (see publication: Roos & Blondeaux, 2001).

Contact Details

Visiting Address

University of Twente
Faculty of Engineering Technology
Horst - Ring (building no. 21)
De Horst 2
7522LW  Enschede
The Netherlands

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University of Twente
Faculty of Engineering Technology
Horst Complex (building no. 20), room W215
De Horst 2
7522LW  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Engineering Technology
Horst Complex  W215
P.O. Box 217
7500 AE Enschede
The Netherlands

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