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- W2977654998 abstract "Storm surges cause coastal inundations due to the setup of the water surface resulting from atmospheric pressure, surface winds and breaking waves. The latter is particularly difficult to be accounted for. For instance, it was observed that during Typhoon Haiyan (2013, Philippines), a stretch of coral reef near the coast, which was expected to protect the coastal communities, actually amplified the waves. The propagation and breaking process of such large nearshore waves can be successfully captured by a phase-resolving wave model. Building defences requires estimating not only the maximum storm surge height, but also maxima of breaking wave height and run-up on land, under consideration of a variety of storm characteristics. However, the computational complexity of the simulator makes optimization tasks impractical. To find the maximum breaking wave (bore) height and the maximum run-up, we employ optim-MICE, a new surrogate-based optimization scheme based on Gaussian Process emulation and information theory. In two idealised settings, we efficiently identify the conditions that create the largest storm waves at the coast using a minimal number of simulations. This is the first surrogate-based optimization of storm waves. It opens the door to previously inconceivable coastal risk assessments." @default.
- W2977654998 created "2019-10-10" @default.
- W2977654998 creator A5002268039 @default.
- W2977654998 creator A5031725822 @default.
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- W2977654998 date "2019-10-03" @default.
- W2977654998 modified "2023-09-27" @default.
- W2977654998 title "Computationally efficient surrogate-based optimization of coastal storm waves heights and run-ups" @default.
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