Effects of wave-current interaction on storm surge in the Taiwan Strait: Insights from Typhoon Morakot

Yu, Xiaolong; Pan, Wei; Zheng, Xiangjing; Zhou, Shenjie; Xiao-qin, Tao

doi:10.1016/j.csr.2017.08.009

Cited by 34 publications

(12 citation statements)

References 36 publications

(37 reference statements)

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“…The dominant factors for the current effect modulation of the wave are different under different dynamic conditions [58]. In the northwest Pacific Ocean, some researchers attributed this modulation to the change of water level [59,60]; some other researchers attributed the modulation to the change of water level for nearshore and the change of current field for offshore [58]. In fact, storm surge affects the water depth in the wave calculation and changes the deformation process of nearshore waves.…”

Section: Contributions Of Wave-current Interaction To Wavesmentioning

confidence: 99%

Assessing the Impact of Wave–Current Interactions on Storm Surges and Waves during Cold Air Outbreaks in the Northern East China Sea

Hou

2021

JMSE

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Storm surges and disastrous waves induced by cold air outbreaks, a type of severe weather system, often impact the coastal economic development. Using the Climate Forecast System Reanalysis wind product and the Coupled Ocean–Atmosphere–Wave–Sediment Transport model, we developed a coupled numerical model and applied it to examine the interaction between surface gravity waves and ocean currents during cold air outbreaks in two case studies in the northern East China Sea. The results revealed that wave–current interactions improved the simulation accuracy, especially the water level, as verified by tidal station measurements. We conducted sensitivity experiments to explore the spatiotemporal variation of the impact of wave–current interactions on storm surges and waves in the northern East China Sea, away from the coastline. The wave-induced surge (up to 0.4 m) and the wave-induced current (up to 0.5 m/s) were found to be related to the difference between wave direction and current direction. The significant wave height difference (up to 0.5 m) was sensitive to the storm surge nearshore and sensitive to the current field offshore, while the mean wave direction change (up to 40°) was more sensitive to the current field than to the storm surge. Additionally, the wave–current interaction regulated the momentum balance and wave action balance, respectively. By comparison, the momentum residuals of pressure gradient, Coriolis force, Coriolis–Stokes force, and bottom stress, which were pronounced in different areas, were modulated more significantly by the wave effect than other terms. The dominant mechanisms of wave–current interactions on waves included the current-induced modification of energy generation caused by wind input, the current-induced modification of energy dissipation caused by whitecapping, and the current-induced wave advection.

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Section: Contributions Of Wave-current Interaction To Wavesmentioning

confidence: 99%

Assessing the Impact of Wave–Current Interactions on Storm Surges and Waves during Cold Air Outbreaks in the Northern East China Sea

Hou

2021

JMSE

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“…At the East of the Taiwan strait, tide-surge interactions have been investigated along the coast of the Leizhou Peninsula (LP) by Zhang et al (2017) (Fig. 2).…”

Section: Orders Of Magnitudementioning

confidence: 99%

“…In the Taiwan Strait, the numerical experiment of Yu et al (2017) for Typhoon Morakot (2009) shows that an increase in significant wave height ( H s ) of about 0.5 m occurred at Sansha (China coast) during high water levels induced by tidal change and atmospheric storm surge. The H s difference at other estuary regions is also significant with a range of − 0.4 m at low water levels and 0.4 m at high water levels.…”

Section: Orders Of Magnitudementioning

confidence: 99%

Interactions Between Mean Sea Level, Tide, Surge, Waves and Flooding: Mechanisms and Contributions to Sea Level Variations at the Coast

et al. 2019

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Coastal areas epitomize the notion of 'at-risk' territory in the context of climate change and sea level rise (SLR). Knowledge of the water level changes at the coast resulting from the mean sea level variability, tide, atmospheric surge and wave setup is critical for coastal flooding assessment. This study investigates how coastal water level can be altered by interactions between SLR, tides, storm surges, waves and flooding. The main mechanisms of interaction are identified, mainly by analyzing the shallow water equations. Based on a literature review, the orders of magnitude of these interactions are estimated in different environments. The investigated interactions exhibit a strong spatiotemporal variability. Depending on the type of environments (e.g., morphology, hydrometeorological context), they can reach several tens of centimeters (positive or negative). As a consequence, probabilistic projections of future coastal water levels and flooding should identify whether interaction processes are of leading order, and, where appropriate, projections should account for these interactions through modeling or statistical methods.

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“…To get more accurate wind and pressure field, parametric equations with some reasonable parameter settings are adopted. The circular symmetric theoretical pressure model is widely used [24]. In this paper, Fujita–Takahashi formula is used to calculate the typhoon pressure field and wind field [25].…”

Section: Numerical Simulation Of Wind and Wavesmentioning

confidence: 99%

Risk evaluation system of navigation security based on coupled wind and wave model: a case of study of Qiongzhou strait

Yin

et al. 2020

IET intell. transp. syst

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Effects of wave-current interaction on storm surge in the Taiwan Strait: Insights from Typhoon Morakot

Cited by 34 publications

References 36 publications

Assessing the Impact of Wave–Current Interactions on Storm Surges and Waves during Cold Air Outbreaks in the Northern East China Sea

Assessing the Impact of Wave–Current Interactions on Storm Surges and Waves during Cold Air Outbreaks in the Northern East China Sea

Interactions Between Mean Sea Level, Tide, Surge, Waves and Flooding: Mechanisms and Contributions to Sea Level Variations at the Coast

Risk evaluation system of navigation security based on coupled wind and wave model: a case of study of Qiongzhou strait

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