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INSTRUCTORS:
David R. Fuhrman
Zuorui Lyu, Ph.D.
Jentsje van der Meer
Lisa Lüddecke, M.Sc.
Biruk Belay
Course Length: 1 hour
Purpose and Background
These presentations were recorded at the International Conference on Coastal Engineering 2026.
A New Third-Order Probability Density Function (PDF) for the Surface Elevation in Irregular Seas (15 minutes)
This presentation introduces a newly developed third-order probability density function (PDF) that improves the representation of surface elevations in irregular sea states. Participants will learn how higher-order statistical approaches can capture nonlinear characteristics often overlooked by conventional models. The speaker will explain the theoretical foundations of the new PDF and compare its performance with existing methods. Attendees will gain insight into how this formulation improves accuracy in wave prediction and risk assessment. Practical applications for offshore engineering and oceanographic studies will also be discussed.
A New Formulation of Freak Waves Estimation with Topography Change (16 minutes)
This presentation explores a new methodology for estimating freak wave occurrence while considering seabed topography changes. Participants will learn how variations in underwater terrain influence wave transformation and the probability of extreme wave events. The speaker will discuss the mathematical framework behind the new estimation approach and how it differs from traditional methods. Case studies and modeling examples will demonstrate the importance of incorporating topographic effects. Attendees will better understand the interaction between bathymetry and wave dynamics and the implications for coastal risk management.
CrossOver: Crossing Seas (Sea and Swell from Different Directions) and the Influence on Wave Overtopping (12 minutes)
Crossing sea conditions occur when wind-generated waves and swell approach from different directions, creating complex wave interactions. This presentation examines how these conditions affect wave overtopping at coastal defenses and maritime structures. Participants will learn about the mechanisms that drive overtopping under multidirectional wave environments. The speaker will present findings from laboratory experiments, numerical models, or field observations relevant to coastal engineering applications. Attendees will discover how crossing seas can alter overtopping rates and potentially increase flood risks. The session will highlight implications for the design and assessment of coastal infrastructure.
Air Entrainment Measurements for an Exemplary Breaking Wave (18 minutes)
This presentation focuses on the measurement and analysis of air entrainment associated with a representative breaking wave. Participants will learn about experimental techniques used to quantify air bubble formation and distribution during wave breaking. The speaker will explain why air entrainment is important for energy dissipation, mixing processes, and coastal hydrodynamics. Attendees will explore how measurement data can improve numerical and physical models of breaking waves. The session will provide practical insight into advanced laboratory and field measurement methods.
Benefits and Learning Outcomes
Upon completion of this course, you will be able to:
- Explain how a third-order probability density function improves the statistical representation of surface elevations in irregular seas.
- Describe the influence of seabed topography changes on the estimation and occurrence of freak waves.
- Discuss how crossing sea conditions influence wave overtopping and coastal structure performance.
- Identify the key mechanisms and measurement techniques involved in air entrainment during wave breaking.
Assessment of Learning Outcomes
Students' achievement of the learning outcomes will be assessed via a short post-test assessment (true-false, multiple choice, and/or fill in the blank questions).
Who Should Attend?
- Coastal Engineer
- Civil Engineer
- Coastal Scientist
- Coastal Resilience Program Manager
- Government Coastal Zone Manager
- University Student or Researcher
How to Earn your CEUs/PDHs and Receive Your Certificate of Completion
To receive your certificate of completion, you will need to complete a short on-line post-test and receive a passing score of 70% or higher within 365 days of the course purchase.
How do I convert CEUs to PDHs?
1.0 CEU = 10 PDHs [Example: 0.1 CEU = 1 PDH]