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首页> 外文期刊>Oceanographic Literature Review >Coastal Wetlands Exposure to Storm Surge and Waves in the Albemarle-Pamlico Estuarine System during Extreme Events
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Coastal Wetlands Exposure to Storm Surge and Waves in the Albemarle-Pamlico Estuarine System during Extreme Events

机译：在极端事件期间，沿海湿地接触风暴浪涌和波涛汹涌和波浪在极端事件期间

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摘要

Coastal wetlands provide a series of ecosystem services, including flood risk reduction. However, the flood risk reduction from such a complex ecosystem is dependent on incoming extreme hurricane-driven hydrodynamic and wave conditions. This study develops a numerical modeling-based approach for investigating coastal wetlands exposure to storm surge and waves during hurricanes by combining maximum water depth (MWD) and significant wave height (MHs) model outputs with the National Wetland Inventory for the Albemarle-Pamlico Estuarine System. Results show that various hurricanes lead to similar bimodal and bidirectional spatiotemporal flood patterns as a function of the lagoon's geometry and storm track, with most overland hydrodynamic extremes impacting western Pamlico Sound and the bayside-Outer Banks. Clear positive dependency between MWD and MH_S were observed over most wetland classes, with significantly higher magnitudes over estuarine emergent vegetation. In contrast to MWD, sharp MH_S attenuation was found as the water propagates inland, leading to high MWD but lower MH_S eventually reaching palustrine woody vegetation hundreds of meters away from the coastline. Improved understanding of how storm surge dynamics move across the bays and through the different wetland types, demonstrates the importance of considering the bay-side flood impacts over the coastal vegetation. The spatially distributed MWD and MH_S estimates, along with the temporal patterns identified through the use of the T_(Max), allow coastal managers and engineers to better understand where, when, and by how much, the estuarine APES wetlands are more likely to be exposed to high water depths and waves.
机译：沿海湿地提供了一系列生态系统服务，包括减少洪水风险。然而，这种复杂生态系统的洪水风险降低取决于输入的极端飓风驱动的流体动力和波条件。本研究通过将最大水深（MWD）和显着的波浪高度（MHS）模型输出与Albemarle-Pamlico eStuarine系统的国家湿地库存相结合。结果表明，各种飓风导致类似的双峰和双向时空洪水模式作为泻湖的几何和风暴轨道的函数，大多数陆上流体动力学极值影响西方帕米尼科声音和海湾外部银行。在大多数湿地课程中观察到MWD和MH_S之间的清晰积极依赖性，在河口突出植被上具有明显更高的大幅度。与MWD相比，夏普MH_S衰减被发现，因为水传播内陆，导致高MWD，但下降MH_S最终从距离海岸线达到数百米的Palustleine Woody植被。改善了了解风暴浪涌动力学如何穿过海湾和通过不同的湿地类型的方式，表明了考虑海湾洪水对沿海植被影响的重要性。空间分布的MWD和MH_S估计，以及通过使用T_（MAX）所识别的时间模式，允许沿海经理和工程师更好地了解河口沼泽湿地更有可能的地方，何时和何时何地暴露在高水深和波浪中。

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  • 来源
    《Oceanographic Literature Review》 |2021年第6期|1182-1182|共1页
  • 作者

    F. Cassalho; T.W. Miesse; A.S. deLima;

  • 作者单位

    Department of Civil Environmental and Infrastructure Engineering George Mason University 4400 University Dr Fairfax VA 22030 United States;

    Department of Civil Environmental and Infrastructure Engineering George Mason University 4400 University Dr Fairfax VA 22030 United States;

    Department of Civil Environmental and Infrastructure Engineering George Mason University 4400 University Dr Fairfax VA 22030 United States;

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