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2016/01/13 14:30 Dr. Wei-Cheng Wu（Pacific Northwest National Laboratory (PNNL) in Seattle）
Seminar
Poster： ╱ Post date：2016-01-12NCU IHOS Seminar Announcemnet
Speaker：Dr. Wei-Cheng Wu
Place：S-325, Science Building 1
Abstract：
Title：Effects of Wave Nonlinearity and Vertical Variation of Vegetation Density on Wave Attenuation
Speaker：Dr. Wei-Cheng Wu
Pacific Northwest National Laboratory (PNNL) in Seattle
Time：01/13（Wed.）14：30
Place：S-325, Science Building 1
Abstract：
The understanding and prediction how coastal wetland vegetation attenuates wave action has received renewed attention with global climate change impacts and increasing populations on coastlines. Conventional attenuation models utilize empirical drag coefficients, but these coefficients exhibit a wide range of values and there is some uncertainty in the relative importance of plant flexibility, wave nonlinearity, and vertical density variations of the above ground biomass. Better knowledge of how to predict the wave attenuation accurately considering wave nonlinearity and biomechanical properties will improve parameterization to evaluate the ecosystem services provided by coastal vegetation. This topic focuses on three core aspects that evaluate and improve existing analytical and numerical models for predicting wave attenuation by vegetation: (a) effects of wave steepness and relative water depth on wave attenuation by emergent vegetation, (b) effects of vertical variation in vegetation density on wave attenuation, and (c) modeling wave attenuation induced by the vertical density variations of vegetation.
Last modification time：2016-01-12 AM 9:02
