Modelling sea level surges in the Firth of Clyde, a fjordic embayment in south-west Scotland

Modelling sea level surges in the Firth of Clyde, a fjordic embayment in south-west Scotland
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对苏格兰西南部峡湾海湾克莱德湾的海平面激增进行建模

DOI:
10.1007/s11069-016-2506-7
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发表时间:
2016
期刊:
影响因子:
3.7
通讯作者:
Sabatino A
Sabatino A
中科院分区:
工程技术3区
文献类型:
--
作者:
Sabatino A

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风暴潮是因天气扰动而引起的水位异常升高。它们有能力对沿海地区造成破坏性的洪水,特别是当它们与天文大潮同时发生时。英国的一些地区遭受了特别具有破坏性的海浪事件,克莱德湾因其位置和形态而成为高风险地区。在这里,我们使用三维高空间分辨率水动力模型来模拟克莱德浪涌的局部测深和形态增强,并分解远场大气压力分布和浪涌局部尺度风力的影响。还讨论了基于米尔波特验潮仪 30 年数据的气候分析。结果表明,洪水不仅是由极端涌浪事件引起的,而且是春季高潮与中等涌浪耦合的结果。由于峡湾海豹和克莱德河口的水深测量和形态,漏斗效应也提高了水位。在海平面上升的世界中,研究海浪和高水位事件的传播和气候学至关重要。此外,高分辨率水动力模型对于预测极端事件、防止人员伤亡或规划海岸防御解决方案至关重要。
Storm surges are an abnormal enhancement of the water level in response to weather perturbations. They have the capacity to cause damaging flooding of coastal regions, especially when they coincide with astronomical high spring tides. Some areas of the UK have suffered particularly damaging surge events, and the Firth of Clyde is a region with high risk due to its location and morphology. Here, we use a three-dimensional high spatial resolution hydrodynamic model to simulate the local bathymetric and morphological enhancement of surge in the Clyde, and disaggregate the effects of far-field atmospheric pressure distribution and local scale wind forcing of surges. A climatological analysis, based on 30 years of data from Millport tide gauges, is also discussed. The results suggest that floods are not only caused by extreme surge events, but also by the coupling of spring high tides with moderate surges. Water level is also enhanced by a funnelling effect due to the bathymetry and the morphology of fjordic sealochs and the River Clyde Estuary. In a world of rising sea level, studying the propagation and the climatology of surges and high water events is fundamental. In addition, high-resolution hydrodynamic models are essential to forecast extreme events and to prevent the loss of lives, or to plan coastal defences solutions.
克莱德海域风暴潮的数值模拟。
DOI: --
发表时间: 1985
期刊:
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发表时间: 2010
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发表时间: 2008
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作者:
B. Hankin;A. Lowis;Andrew Lloyd;P. Robinson;D. Henderson;S. Lancashire;Simon Wells
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DOI: --
发表时间: 1998
期刊:
影响因子: --
作者:
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通讯作者: P. Hall