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Storm-driven coastal change, shoreline orientation, and tidal phase: A case study from Hurricane Irene

机译：风暴驱动的沿海变化，海岸线方向和潮汐期：以艾琳飓风为例

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Hurricane Irene had weakened to a tropical storm prior to crossing over western Mas sachusetts, but significant erosion occurred on several east-facing beaches more than 350 km (200 miles) to the east. Pre- and post-storm beach profiles were collected, followed by six spring-tide profiles along nine beach transects - five on east-facing ocean beaches and four on west-facing bay beaches. A post-storm, vessel-based acoustic survey was also conducted three days after the storm offshore of one of the transects, using a phase measuring bathymetric sonar. East-facing, ocean beaches experienced erosion up to an order of magnitude greater than west-facing, bay beaches. Subsequent data collection was useful in determining the sediment transport pathways, sediment flux, and coastal evolution on multiple temporal and spatial scales. The acoustic survey documented a large bar composed of sediment likely eroded during the storm and being transported shoreward by fair-weather waves.
机译：艾琳飓风在穿越马斯萨诸塞州西部之前已经减弱为热带风暴，但是在东面超过350公里（200英里）的几个朝东海滩上发生了严重的侵蚀。收集了风暴前后的海滩剖面，然后沿着九个海滩样线收集了六个春季潮汐剖面-其中五个在朝东的海洋沙滩上，另外四个在朝西的海湾沙滩上。暴风雨发生后，在一个断面的海上风灾发生三天后，使用相位测量测深声纳对舰船进行了声学调查。面向东的海洋海滩比面向西的海湾海滩遭受的侵蚀最多可达一个数量级。随后的数据收集对于确定多个时空尺度上的泥沙输送路径，泥沙通量和海岸演变很有用。声学调查记录了一个很大的条形物，由可能在暴风雨中侵蚀并在晴朗的天气波向岸运输的沉积物组成。

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