L. Portos - Amill MSc (Laura)

PhD Candidate

About Me

As PhD Candidate within the MELODY project (ModEling LOwer shoreface Seabed DYnamics for a Climate-Proof Coast), I study tidal sand waves on the lower shoreface. In particular, I study how they affect the flow and how they interact with larger-scale topography (sand banks and the sloping lower shoreface itself).

I am currently studying the increased roughness that the tidal flow experiences over a sand wave field. The goal is to come up with parametrizations of the form roughness such that the presence of sand waves can be replaced by an increased roughness, and still yield the same flow pattern at a larger spatial scale.


In the past I have studied other coastal-related topics. For my Bachelor Thesis I studied the long-term evolution of the Zandmotor mega-nourishment under different sea level rise scenarios. For my Master Thesis I studied barrier island drowning under different sea level rise scenarios using an idealized process-based model.


Since October 2023, I am a board member and the secretary of Young NCK (Netherlands Center for Coastal Research).



  • 2022: MSc Climate Physics, Utrecht University, The Netherlands
  • 2020: BSc Engineering Physics, Universitat Politècnica de Catalunya, Spain


Portos‐Amill, L., Nienhuis, J. H., & De swart, H. E. (2023). Gradual Inlet Expansion and Barrier Drowning Under Most Sea Level Rise Scenarios. Journal of geophysical research: Earth surface, 128(11), Article e2022JF007010. https://doi.org/10.1029/2022JF007010
Nienhuis, J. H. , Portos-Amill, L., de swart, H. E., & Roebeling, M. R. W. (2023). Tidal inlet expansion from sea level rise. In P. Wang, E. Royer, & J. D. Rosati (Eds.), Proceedings Coastal Sediments 2023 (pp. 71-76). World Scientific. https://doi.org/10.1142/9789811275135_0007
Ribas, F. , Portos-Amill, L., Falqués, A., Arriaga, J., Marcos, M., & Ruessink, G. (2023). Impact of mean sea-level rise on the long-term evolution of a mega-nourishment. Climatic change, 176(5), Article 66. https://doi.org/10.1007/s10584-023-03503-6
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. https://maridnet.files.wordpress.com/2023/07/maridvii-portos-amill-laura.pdf
Portos - Amill, L. (2023). Scale interactions of tidal sand waves on the lower shoreface: Literature report. (CE&M research report; No. 2023R-002/WEM002). University of Twente.
Martí, J., Mazzanti, F., Astrakharchik, G. E., Batet, L. , Portos-Amill, L., & Pedreño, B. (2022). Nucleation of Helium in Liquid Lithium at 843 K and High Pressures. Materials, 15(8), Article 2866. https://doi.org/10.3390/ma15082866
Other Contributions

Research previous to my PhD

  • MSc Thesis: Barrier islands face a gradual path under drowning under most sea level rise scenarios
  • BSc Thesis: Effect of sea level variations on the long-term dynamics of the Zandmotor mega-nourishment


  • Journal of Geophysical Research: Earth Surface

UT Research Information System

Google Scholar Link


MSc Courses

  • Lectures on ODEs for Mathematical Physics of Water Systems: 2023
  • Tutorials for Mathematical Physics of Water Systems: 2022
  • Seminar in Morphology: 2023


Supervision of MSc students:

  • Carlos Bedon Pineda (ongoing)


Affiliated Study Programmes


Contact Details

Visiting Address

University of Twente
Faculty of Engineering Technology
Horst Complex (building no. 20), room W209
De Horst 2
7522LW  Enschede
The Netherlands

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Mailing Address

University of Twente
Faculty of Engineering Technology
Horst Complex  W209
P.O. Box 217
7500 AE Enschede
The Netherlands