Impact of Sea Level Rise on Storm Surges around the Changjiang Estuary
Impact of Sea Level Rise on Storm Surges around the Changjiang Estuary
复制标题
海平面上升对长江口周边风暴潮的影响
DOI：
10.2112/si68-004.1
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发表时间：
2014-12
影响因子：
--
通讯作者：
Ding, Pingxing
中科院分区：
文献类型：
--
作者：
Zhao, Changjin;Ge, Jianzhong;Ding, Pingxing
摘要赵超；葛军，丁鹏，2014。海平面上升对长江口附近风暴潮的影响。利用ADCIRC浅水环流模式和SWAN谱模式，研究了海平面上升对长江口和杭州湾风暴潮的潜在影响。将该模式应用于两个典型台风在1.0m单反、0.483 m单反和当前海平面条件下的预报。在考虑潮汐、波浪和涌浪相互作用的情况下，讨论了SLR对潮汐和波浪的影响。SLR产生的角线的迁移导致同相线在长江口附近相对逆时针方向移动。涨潮幅度在长江口内侧略有增大，在长江口北部涨幅较为显著。杭州湾附近海域潮汐波幅减小。波高对海平面上升的响应是非线性的和空间上不均匀的。比较每种情况下的最大波高，发现由于水深的增加，浅水区的波高增加很明显。海浪移位岸边的破裂地点。台风路径和地形大致决定了台风波高变化的一般规律。对于涌浪和高程的变化，分析了水面曲线的时间序列和峰值分布。与控制情景相比，涌浪和水位曲线略有加快。潮汐对单反不是很敏感，海拔的变化可能主要是潮汐变化的原因，变化的幅度从几厘米到十几厘米不等。考虑到SLR的价值，未来近岸的海拔峰值可能会有显著的上升。所有属性对海平面上升的响应都是非线性的、空间上不均匀的。
ABSTRACT Zhao, C.; Ge, J., and Ding, P., 2014. Impact of sea level rise on storm surges around the Changjiang Estuary. The potential impacts of sea level rise (SLR) on storm surge around the Changjiang Estuary and the Hangzhou Bay are investigated using a shallow-water circulation model ADCIRC coupled with a spectral wave model SWAN. The validated model is applied to two typical typhoons under three scenarios: 1.0 m SLR, 0.483 m SLR and present sea-level condition. In consideration of interactions of tide, waves and surge, the impact exerted by SLR on tide and waves are also discussed. The migration of the amphidromes generated by SLR causes the co-phase lines to defect relatively counterclockwise near the Changjiang Estuary. The amplitude of tide increases slightly at the inner mouth of the Changjiang River, and more notable increases are presented at the northern part of the Changjiang River Mouth. The amplitude of tide decreases in adjacent areas of the Hangzhou Bay. The wave heights respond to the sea level rise in a non-linear and spatially non-uniform manner. Comparing the maximum wave height between each scenario, the wave height increase is found to be significant in shallow areas due to the increase in water depth. The breaking locations of the wave shift shoreward. The general patterns in wave height change are approximately determined by the typhoon path and topography. As for changes in surge and elevation, time series of water surface curves and peak value distribution are all analyzed. The curves of surges and water elevations accelerate slightly relative to that of the control scenario. The surges are not very sensitive to the SLR and the variations in elevation could mainly attribute changes in tide, with the changing extents ranging from a few to a dozen centimeters. Taking the value of SLR into account, the peak of elevation near shore could experience a significant increase in the future. All the properties respond to sea level rise in a non-linear and spatially non-uniform manner.
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影响因子：
4.4
作者：
Chini, Nicolas;Stansby, Peter;Lowe, Jason
通讯作者：
Lowe, Jason
DOI：
--
发表时间：
1952-05
期刊：
Geophysical magazine
影响因子：
--
作者：
T. Fujita
通讯作者：
T. Fujita
DOI：
--
发表时间：
2000
期刊：
--
影响因子：
--
作者：
Z. Xubo;S. Wenxin
通讯作者：
Z. Xubo;S. Wenxin
影响因子：
5
作者：
J. Smith;M. Cialone;T. Wamsley;T. McAlpin
通讯作者：
J. Smith;M. Cialone;T. Wamsley;T. McAlpin
影响因子：
2.3
作者：
Dietrich, J. C.;Trahan, C. J.;Twilley, R. R.
通讯作者：
Twilley, R. R.