Horst Complex

L. Portos - Amill MSc (Laura)

PhD Candidate
ET-CEM-WS
Horst Complex W218
l.portosamill@utwente.nl
+31534899529
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As PhD Candidate within the MELODY project (ModEling LOwer shoreface Seabed DYnamics for a Climate-Proof Coast), I study the possible scale interactions of tidal sand waves on the lower shoreface. This includes the effects of tidal sand waves on the (larger-scale) tidal flow, or the effects of a (larger-scale) seabed topography (for example, the sloping lower shoreface itself) on sand wave characteristics. In the future I aim to combine these two and study the evolution of sand waves on top of a sand bank and how these interact with each other and with the tidal flow.

As part of my PhD, I have studied the extension of the concept of form roughness to a tidal setting, thus induced by tidal sand waves. Currently, I am studying the effects of a sloping bed on sand wave characteristics using a perturbation approach.

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). Since September 2024 I am an elected member of the ET Faculty Council.

 

Education

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

Expertise

  • Earth and Planetary Sciences

    • Sand Wave
    • Roughness
    • Sea Level Rise
    • Model
    • Barrier Island
    • Continental Shelf
    • Coefficient
    • Shape

Organisations

Publications

2025

Linear stability analysis on a sloping shelf: effects on tidal sand wave formation (2025)[Contribution to conference › Abstract] NCK days 2025. Portos - Amill, L., Roos, P. C., Schuttelaars, H. M. & Hulscher, S. J. M. H.https://www.nck-web.org/boa-2025/1004-linear-stability-analysis-on-a-sloping-shelf-effects-on-tidal-sand-wave-formation

2024

Form roughness induced by tidal sand waves:: a modelling study (2024)[Contribution to conference › Abstract] 38th International Conference on Coastal Engineering, ICCE 2024. Portos - Amill, L., Roos, P. C., Damveld, J. & Hulscher, S. J. M. H.Modeling Form Roughness Induced by Tidal Sand Waves (2024)Journal of geophysical research: Earth surface, 129(5). Article e2023JF007610. Portos‐Amill, L., Roos, P. C., Damveld, J. H. & Hulscher, S. J. M. H.https://doi.org/10.1029/2023JF007610Calculating sand wave-induced form roughness coefficients for a section of the Netherlands Continental Shelf. (2024)[Contribution to conference › Abstract] NCK Days 2024. Bedon Pineda, C. H., Portos - Amill, L. & Roos, P. C.https://www.nck-web.org/boa-2024/821-calculating-sand-wave-induced-form-roughness-coefficients-for-a-section-of-the-netherlands-continental-shelfModelling sand wave-induced form roughness: The complexity of a tidal setting (2024)In NCK DaysDays 2024 ‘Innovative science for a resilient coast’, March 13-15, IHE Delft: Book of Abstracts. IHE. Portos - Amill, L., Roos, P. C., Damveld, J. & Hulscher, S. J. M. H.https://www.nck-web.org/boa-2024/793-modelling-sand-wave-induced-form-roughness-the-complexity-of-a-tidal-settingMATLAB code for Modelling form roughness induced by tidal sand waves: second order perturbation approach analysis (2024)[Dataset Types › Dataset]. 4TU.Centre for Research Data. Portos-Amill, L., Roos, P. C., Damveld, J. & Hulscher, S. J. M. H.https://doi.org/10.4121/9011d7d2-b715-4aee-86c0-a67ca2810f2b

2023

Gradual Inlet Expansion and Barrier Drowning Under Most Sea Level Rise Scenarios (2023)Journal of geophysical research: Earth surface, 128(11). Article e2022JF007010. Portos‐Amill, L., Nienhuis, J. h. & De swart, H. e.https://doi.org/10.1029/2022JF007010Impact of mean sea-level rise on the long-term evolution of a mega-nourishment (2023)Climatic change, 176(5). Article 66. Ribas, F., Portos-Amill, L., Falqués, A., Arriaga, J., Marcos, M. & Ruessink, G.https://doi.org/10.1007/s10584-023-03503-6Scale interactions of tidal sand waves on the lower shoreface: Literature report (2023)[Book/Report › Report]. University of Twente. Portos - Amill, L.Tidal inlet expansion from sea level rise (2023)In Proceedings Coastal Sediments 2023 (pp. 71-76). World Scientific. Nienhuis, J. H., Portos-Amill, L., de swart, H. E. & Roebeling, M. R. W.https://doi.org/10.1142/9789811275135_0007

Other contributions

Research previous to my PhD

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

Reviewer

  • Journal of Geophysical Research: Earth Surface

Research profiles

MSc Courses

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

 

Supervision of MSc students:

  • Carlos Bedon Pineda (July 2024): Quantifying the influence of tidal sand wave orientation on form roughness

Affiliated study programs

Address

University of Twente

Horst Complex (building no. 20), room W218
De Horst 2
7522 LW Enschede
Netherlands

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