Effects of nonlinear terms and topography in a storm surge model along the southeastern coast of China: a case study of Typhoon Chan-hom

Zhang, Xilin; Chu, Dongdong; Zhang, Jicai

doi:10.1007/s11069-021-04595-y

Cited by 13 publications

(8 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although it is difficult to distinguish the impacts of typhoon intensity or tidal period on the nonlinear interaction specifically, there is no doubt that both of them can alter the nonlinear interaction. It corresponds with the findings of Zhang et al [68], who took typhoon Chan-Hom as the object of investigation and concluded that the higher tide height, the stronger the nonlinear interaction.…”

Section: The Mechanism Of Surge Variations During the Storm Eventssupporting

confidence: 90%

The Responses of Storm Surges to Representative Typhoons under Wave–Current Interaction in the Yangtze River Estuary

Wang,

Kuang,

Cheng

et al. 2024

JMSE

View full text Add to dashboard Cite

Storm surge is one of the most remarkable natural calamities, which is shown as the abnormal sea level changes in the coastal waters during a typhoon event. To investigate the responses of storm surges to the typhoon paths, intensities and coastal dynamics, a coupled wave–current model is used to study the impacts of strong winds, considerable waves and complex currents on storm surges in the Yangtze River Estuary (YRE) during three representative typhoons of Fongwong (2014), Ampil (2018) and Lekima (2019) with different intensities and paths. The model is verified using the measured data on significant wave height and period, water level and current velocity and performs well in modeling real conditions. The numerical results demonstrate that (1) the maximum storm surge occurred in the South Channel (SC) during Fongwong and Lekima while in the North Branch (NB) during Ampil due to the typhoon path and the estuarine terrain. Among the three typhoons, Lekima presented the highest surge, with a maximum value of 1.17 m at SC2 (the inner point of the SC). There was a negative surge during Ampil, which reached −0.42 m at SC2, due to the representative path (SE to NW) and offshore wind action. (2) Tide is the main influencing factor of storm surge as the maximum or minimum value always occurs at the low or high tidal level, respectively. Meanwhile, typhoon intensity is important as it influences the variation rate of surge with higher intensity leading to a sudden increase in surge while the tidal intensity primarily affects the peak value. (3) The wave setup can counteract the wind-induced negative surge. The peak differences between storm surge isoline and wave setup isoline are 0.15, 0.2 and 0.2 m during Fongwong, Ampil and Lekima, respectively, which illustrates the impacts of the combined actions of the typhoon path and intensity on the wave setup. This research emphasizes the influences of wave–current interaction on estuarine storm surge during typhoon events and reveals the potential risks for oceanic disasters like coastal inundation.

show abstract

Section: The Mechanism Of Surge Variations During the Storm Eventssupporting

confidence: 90%

The Responses of Storm Surges to Representative Typhoons under Wave–Current Interaction in the Yangtze River Estuary

Wang,

Kuang,

Cheng

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

“…The model used in this study is FVCOM v4.0, while the baroclinic effect is ignored. This model has been successfully applied to numerous estuaries and continental shelf areas (Chu et al, 2019;Zhang et al, 2021).…”

Section: Model Developmentmentioning

confidence: 99%

Effects of spatial bottom friction parameterization scheme on the tidal dynamics in the macrotidal East China Seas

Qian

Wei

et al. 2023

Front. Mar. Sci.

Self Cite

View full text Add to dashboard Cite

In this study, the effects of different bottom friction coefficient (BFC) parameterization schemes on the modelling of four principal tidal constituents (M2, S2, K1, O1 tides) in the macrotidal East China Seas were investigated by using a high-resolution model based on FVCOM (Finite Volume Community Ocean Model). The applied BFC schemes include: the empirical constant (EC-BFC), sediment-dependent form (SD-BFC), and spatial varying BFC obtained from adjoint data assimilation (SV-BFC). The comparisons between the simulated results and the observations from satellite altimeters and tidal gauge stations indicated that the SV-BFC scheme is superior to others. The locations of amphidromic points calculated with EC-BFC and SD-BFC were in the northwest of those from SV-BFC. The variations in tidal dynamics between different BFC schemes were closely related to the spatial distributions of BFCs, especially in high-valued BFC areas, e.g., the West Korea Bay, the South Yellow Sea, and the eastern coasts of Jiangsu, Zhejiang and Fujian provinces. The tidal energy flux transporting into Bohai and Yellow Seas increased under the SV-BFC scheme, while smaller tidal energy flux transporting from the Korea Strait was generated by SV-BFC as compared to those from EC-BFC and SD-BFC. The high-valued BFC areas in the SV-BFC scheme dissipated larger amounts of tidal energy, and the average values of Simpson-Hunter numbers were lower than those with the other two schemes. However, the values of Simpson-Hunter numbers increased in the West Korea Bay and Jianghua Bay with high-valued BFCs because of the decreasing current velocity under the headland-shaped topography.

show abstract

“…Musinguzi and Akbar [22] studied the effect of wind intensity and forward speed on storm surges of hurricane Rita, and they found that the wind intensity had the greatest impact in storm surges followed by the forward speed. Zhang et al [23] studied the effect of topography in a storm surge model along the SCC, in which they found that the peak surges along the coastal area were easier to be affected with a decreasing slope. These studies have shown that the features of storm surges are complex and storm surges are sensitive to the path, forward speed, wind intensity, and topography.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the previous study [26], the tropical cyclones influencing the SCC are roughly classified into four types: type 1 is a medium-turning tropical cyclone which propagates with a direction within 125 • E (Figure 1a); type 2 is similar to type 1, but with a propagation direction within a longitude range of 125 • E to 140 • E (Figure 1b); type 3 is a tropical cyclone that lands in Fujian province or dissipates in the Taiwan Strait (Figure 1c); type 4 is the one that lands in Zhejiang province, Jiangsu province, or disappears in the offshore (Figure 1d). Storm surge models have been developed along the SCC, and they mainly concentrated on studying a typhoon-induced storm surge process [23,27,28]. Although this region is vulnerable to storm surges, there has been little open literature reporting on the synergistic effects of key parameters in the wind and pressure field (forward speed, RMW, inflow angle, and central pressure), typhoon path, wind intensity, and topography on the modeling of storm surge and surge asymmetry along the SCC, which motivated this paper.…”

Section: Introductionmentioning

confidence: 99%

Modeling Study on the Asymmetry of Positive and Negative Storm Surges along the Southeastern Coast of China

Chu

Niu

Qiao

et al. 2021

JMSE

Self Cite

View full text Add to dashboard Cite

In this paper, a three-dimensional storm surge model was developed based on the Finite Volume Community Ocean Model (FVCOM) by the hindcasts of four typhoon-induced storm surges (Chan-hom, Mireille, Herb, and Winnie). After model validation, a series of sensitivity experiments were conducted to explore the effects of key parameters in the wind and pressure field (forward speed, radius of maximum wind (RMW), inflow angle, and central pressure), typhoon path, wind intensity, and topography on the storm surge and surge asymmetry between sea level rise (positive surge) and fall (negative surge) along the southeastern coast of China (SCC). The model results show that lower central pressure and larger RMW could lead to stronger surge asymmetry. A larger inflow angle results in a stronger surge asymmetry. In addition, the path of Chan-hom is the most dangerous path type for the Zhoushan Archipelago area, and that of Winnie follows next. The model results also indicate that the non-linear interaction between wind field and pressure field tends to weaken the peak surge elevation. The effect of topography on storm surges indicates that the peak surge elevation and its occurrence time, as well as the surge asymmetry, increase with a decreasing slope along the SCC.

show abstract

Effects of nonlinear terms and topography in a storm surge model along the southeastern coast of China: a case study of Typhoon Chan-hom

Cited by 13 publications

References 33 publications

The Responses of Storm Surges to Representative Typhoons under Wave–Current Interaction in the Yangtze River Estuary

The Responses of Storm Surges to Representative Typhoons under Wave–Current Interaction in the Yangtze River Estuary

Effects of spatial bottom friction parameterization scheme on the tidal dynamics in the macrotidal East China Seas

Modeling Study on the Asymmetry of Positive and Negative Storm Surges along the Southeastern Coast of China

Contact Info

Product

Resources

About