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首页> 外文期刊>Shore and beach >A tale of three storms: Morphologic response of Broadkill Beach, Delaware, following Superstorm Sandy, Hurricane Joaquin, and Winter Storm Jonas
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A tale of three storms: Morphologic response of Broadkill Beach, Delaware, following Superstorm Sandy, Hurricane Joaquin, and Winter Storm Jonas

机译：三个风暴的故事：超级风暴桑迪，飓风华金和冬季风暴乔纳斯之后，特拉华州布罗基尔海滩的形态响应

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Extreme stochastic events such as tropical storms and nor easters test coastal resiliency with strong winds, large waves, high storm surge, dune overwash, and inundation. Communities can increase their resiliency with shoreline protection and this is typically done with hard or semi-hard structures like sea walls, breakwaters, dikes, or via sand nourishment. Superstorm Sandy (2012), Hurricane Joaquin (2015), and Winter Storm Jonas (2016) were some of the most destructive on record, with the highest significant wave heights and storm surges recorded in the Delaware Bay. Specifically, at Broadkill Beach, Superstorm Sandy struck during a lull in its nourishment timeline. RTK GPS surveys showed sediment volume losses of over 24,000 m3. The US ACE nourished Broadkill in 2015 with 997,700 m~3 of dredged material to create an extended berm and large dune. This protection prevented inundation and major erosion during Hurricane Joaquin and Winter Storm Jonas where approximately 2% or less of sand was removed during both storms. GPS monitoring of Broadkill has shown the ability of the nourishment project to protect the surrounding community from these extreme storm events. Only longer monitoring of the site will determine how Prime Hook National Refuge, the marsh area to the west of Broadkill Beach, and the wildlife of the Delaware Bay interacts with and is affected by the large-scale nourishment.
机译：极端的随机事件，例如热带风暴和复活节，测试了大风，大浪，高风暴潮，沙丘冲刷和洪水泛滥的沿海弹性。社区可以通过海岸线保护来增强其适应能力，这通常是通过使用坚硬或半坚硬的结构（如海堤，防波堤，堤防或通过养沙）来实现的。超级风暴桑迪（2012），飓风华金（2015）和冬季风暴乔纳斯（2016）是有记录以来破坏力最大的一些，在特拉华湾记录的最高波高和风暴潮最高。具体而言，在Broadkill海滩，Superstorm Sandy在其营养时间表中陷入沉寂。 RTK GPS调查显示，沉积物体积损失超过24,000 m3。美国ACE在2015年用997,700 m〜3的疏material物料滋养了Broadkill，创造了加长的护堤和大沙丘。这种保护措施防止了飓风“华金”和“冬季风暴乔纳斯”期间的洪水泛滥和重大侵蚀，在两次飓风期间，乔纳斯飓风均清除了大约2％或更少的沙子。 GPS对Broadkill的监视表明，营养项目具有保护周围社区免受这些极端风暴事件影响的能力。只有对该站点进行更长的监视，才能确定Prime Hook国家避难所，Broadkill海滩以西的沼泽地以及特拉华湾的野生生物如何与大规模营养物相互作用并受其影响。

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