Impact of typhoon Lekima (2019) on material transport in Laizhou Bay using Lagrangian coherent structures

Lou, Qi; Li, Zhengyan; Zhang, Yanwei; Feng, Yilei; Zhang, Xueqing

doi:10.1007/s00343-021-0384-7

Cited by 5 publications

(3 citation statements)

References 56 publications

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“…In this study, the code used to calculate the FTLE field was programmed in MATLAB, which is the same as that in the reference (Lou et al, 2022). In order to prove the feasibility of the code, we test the code on the time-varying double-gyre flow field, and the FTLE field at t = 0 is consistent with that by Jakobsson (2012).…”

Section: Lagrangian Coherent Structuresmentioning

confidence: 95%

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Lagrangian analysis of material transport around the headland in the Yellow River Estuary

Lou

Zhang

et al. 2022

Front. Mar. Sci.

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Material transport around the headland has received more attention. To reveal the material transport pattern and its response to the topography in the Yellow River Estuary (YRE), in this paper, three Lagrangian analysis methods, including Lagrangian residual current, particle tracking model, and Lagrangian coherent structures (LCSs), are used to analyze the material horizontal transport near the headland in the YRE. The results of the study show that the headland plays an important role in the hydrodynamic processes and material transport in the YRE. Due to the current shear induced by the topography, materials easily diffuse, forming a front around the headland. Due to the blocking and shading effects of the headland, the materials tend to accumulate on the right side of the headland (facing the sea). The above three Lagrangian methods can describe the characteristics of the material distribution, but the LCS method is superior in comparison. Due to their more stable spatial structure, LCSs can be used to analyze the transport of pollutants, larvae, microplastics, etc. in the YRE.

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Section: Lagrangian Coherent Structuresmentioning

confidence: 95%

“…The horizontal grid resolution ranges from 200 m in the YRE to 5,000 m outside the study area, and 5 -coordinate layers are used in the vertical. The bottom roughness height is set to a constant of 0.001 m. The model is the same as the reference model (Lou et al, 2022) and has been calibrated and verified with field observations.…”

Section: Datamentioning

confidence: 99%

Lagrangian analysis of material transport around the headland in the Yellow River Estuary

Lou

Zhang

et al. 2022

Front. Mar. Sci.

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“…Briefly, FVCOM is an ocean circulation model using the finite volume numerical scheme, which works on triangular unstructured grids to fit complex coastlines (Chen et al, 2003). The hydrodynamic model used here has already been validated and published (Lou et al, 2022), and it demonstrated excellent consistency between simulation results and observational data.…”

Section: Connectivity Between Spawning Ground and Nursery Ground 231 ...mentioning

confidence: 99%

HSI model for early life stages of anchovy considering transport processes in Laizhou Bay

et al. 2022

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Marine fishes are sensitive to the environment during their early life stages. This study adopts a habitat suitability index (HSI) model to evaluate the environmental suitability for early stages of anchovy (Engraulis japonicus) in Laizhou Bay. Instead of calculating the suitability of spawning grounds and nursery grounds independently or the simple average of the two, an individual-based model is used to simulate the drifting trajectories of anchovy eggs to establish the link between a spawning ground and its corresponding nursery ground. The HSI of early life habitat is determined by averaging the HSI value of the paired two grounds. The model results suggest that a small patch at eastern Laizhou Bay (near 120.1 E°, 37.6 N°) is the most critical and suitable area for anchovy in early life stages. It can provide an appropriate habitat for anchovy eggs and allow the eggs to migrate to the inside of the bay with plenty of plankton, which would benefit the newly hatching larvae. The results indicate the significant impact of hydrodynamic transport on fishery recruitment process, which should not be neglected in habitat quality evaluation. The model adopted in this study is applied to anchovy as a case study, but it is also exportable to other species of commercial interest.

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Lagrangian coherent structure analysis on transport of Acetes chinensis along coast of Lianyungang, China

Wang,

Zhang,

Lou

et al. 2024

J. Ocean. Limnol.

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Impact of typhoon Lekima (2019) on material transport in Laizhou Bay using Lagrangian coherent structures

Cited by 5 publications

References 56 publications

Lagrangian analysis of material transport around the headland in the Yellow River Estuary

Lagrangian analysis of material transport around the headland in the Yellow River Estuary

HSI model for early life stages of anchovy considering transport processes in Laizhou Bay

Lagrangian coherent structure analysis on transport of Acetes chinensis along coast of Lianyungang, China

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