The vertical distribution of sediment concentration in estuaries is the core issue of suspended sediment transport. At present, there are many researches on the vertical distribution of sediment concentration in rivers, and a lot of results have been achieved, but that in estuaries is seldom studied. The Yellow River Estuary (YRE) and the Qiantang River Estuary (QRE) are typical tidal estuaries with strong erosion/deposition and high concentration in China. Under the action of alternating tidal flow, the suspended sediment transport shows significant time-varying and non-equilibrium transport characteristics. The vertical distribution of sediment concentration is quite different from that of ordinary rivers. This paper analyzes the vertical distribution of sediment concentration under the action of tidal currents based on the theory of sediment movement and diffusion. Compared with equilibrium sediment transport, the vertical distribution of sediment concentration only differs by one vertical distribution coefficient. Based on the analysis of the measured data, it is found that the vertical distribution of sediment concentration in the YRE and QRE is mostly exponential. Firstly, the multivariate relationship between the vertical distribution coefficient and the sediment saturation and suspension index is established by means of the measured water and sediment data of the QRE. The correlation coefficient R2 was above 0.64, which has a good correlation. Finally, the established relationship was validated using measured water and sediment data from the YRE, and the results were basically consistent, indicating that the established formula for vertical distribution of sediment concentration is suitable for general tidal estuaries, and has a certain reference value for the simulation of sediment transport in the YRE and QRE.
| Published in | Earth Sciences (Volume 13, Issue 4) |
| DOI | 10.11648/j.earth.20241304.13 |
| Page(s) | 141-150 |
| Creative Commons |
This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited. |
| Copyright |
Copyright © The Author(s), 2024. Published by Science Publishing Group |
Vertical Distribution of Sediment Concentration, Vertical Distribution Coefficient, Sediment Saturation, Suspended Index, Sediment Carrying Capacity, Yellow River Estuary, Qiantang River Estuary
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APA Style
Shi, Y., Cheng, W., He, K., Zhang, J. (2024). Study on Vertical Distribution of Sediment Concentration in the Tidal Estuary. Earth Sciences, 13(4), 141-150. https://doi.org/10.11648/j.earth.20241304.13
ACS Style
Shi, Y.; Cheng, W.; He, K.; Zhang, J. Study on Vertical Distribution of Sediment Concentration in the Tidal Estuary. Earth Sci. 2024, 13(4), 141-150. doi: 10.11648/j.earth.20241304.13
AMA Style
Shi Y, Cheng W, He K, Zhang J. Study on Vertical Distribution of Sediment Concentration in the Tidal Estuary. Earth Sci. 2024;13(4):141-150. doi: 10.11648/j.earth.20241304.13
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Download@article{10.11648/j.earth.20241304.13,
author = {Yingbiao Shi and Wenlong Cheng and Kun He and Jun Zhang},
title = {Study on Vertical Distribution of Sediment Concentration in the Tidal Estuary
},
journal = {Earth Sciences},
volume = {13},
number = {4},
pages = {141-150},
doi = {10.11648/j.earth.20241304.13},
url = {https://doi.org/10.11648/j.earth.20241304.13},
eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20241304.13},
abstract = {The vertical distribution of sediment concentration in estuaries is the core issue of suspended sediment transport. At present, there are many researches on the vertical distribution of sediment concentration in rivers, and a lot of results have been achieved, but that in estuaries is seldom studied. The Yellow River Estuary (YRE) and the Qiantang River Estuary (QRE) are typical tidal estuaries with strong erosion/deposition and high concentration in China. Under the action of alternating tidal flow, the suspended sediment transport shows significant time-varying and non-equilibrium transport characteristics. The vertical distribution of sediment concentration is quite different from that of ordinary rivers. This paper analyzes the vertical distribution of sediment concentration under the action of tidal currents based on the theory of sediment movement and diffusion. Compared with equilibrium sediment transport, the vertical distribution of sediment concentration only differs by one vertical distribution coefficient. Based on the analysis of the measured data, it is found that the vertical distribution of sediment concentration in the YRE and QRE is mostly exponential. Firstly, the multivariate relationship between the vertical distribution coefficient and the sediment saturation and suspension index is established by means of the measured water and sediment data of the QRE. The correlation coefficient R2 was above 0.64, which has a good correlation. Finally, the established relationship was validated using measured water and sediment data from the YRE, and the results were basically consistent, indicating that the established formula for vertical distribution of sediment concentration is suitable for general tidal estuaries, and has a certain reference value for the simulation of sediment transport in the YRE and QRE.},
year = {2024}
}
TY - JOUR T1 - Study on Vertical Distribution of Sediment Concentration in the Tidal Estuary AU - Yingbiao Shi AU - Wenlong Cheng AU - Kun He AU - Jun Zhang Y1 - 2024/08/20 PY - 2024 N1 - https://doi.org/10.11648/j.earth.20241304.13 DO - 10.11648/j.earth.20241304.13 T2 - Earth Sciences JF - Earth Sciences JO - Earth Sciences SP - 141 EP - 150 PB - Science Publishing Group SN - 2328-5982 UR - https://doi.org/10.11648/j.earth.20241304.13 AB - The vertical distribution of sediment concentration in estuaries is the core issue of suspended sediment transport. At present, there are many researches on the vertical distribution of sediment concentration in rivers, and a lot of results have been achieved, but that in estuaries is seldom studied. The Yellow River Estuary (YRE) and the Qiantang River Estuary (QRE) are typical tidal estuaries with strong erosion/deposition and high concentration in China. Under the action of alternating tidal flow, the suspended sediment transport shows significant time-varying and non-equilibrium transport characteristics. The vertical distribution of sediment concentration is quite different from that of ordinary rivers. This paper analyzes the vertical distribution of sediment concentration under the action of tidal currents based on the theory of sediment movement and diffusion. Compared with equilibrium sediment transport, the vertical distribution of sediment concentration only differs by one vertical distribution coefficient. Based on the analysis of the measured data, it is found that the vertical distribution of sediment concentration in the YRE and QRE is mostly exponential. Firstly, the multivariate relationship between the vertical distribution coefficient and the sediment saturation and suspension index is established by means of the measured water and sediment data of the QRE. The correlation coefficient R2 was above 0.64, which has a good correlation. Finally, the established relationship was validated using measured water and sediment data from the YRE, and the results were basically consistent, indicating that the established formula for vertical distribution of sediment concentration is suitable for general tidal estuaries, and has a certain reference value for the simulation of sediment transport in the YRE and QRE. VL - 13 IS - 4 ER -
Zhejiang Institute of Hydraulics and Estuary (Zhejiang Institute of Marine, Planning and Design), Hangzhou, China; Zhejiang Provincial Key Laboratory of Estuary and Coast, Hangzhou, China
Zhejiang Institute of Hydraulics and Estuary (Zhejiang Institute of Marine, Planning and Design), Hangzhou, China; Zhejiang Provincial Key Laboratory of Estuary and Coast, Hangzhou, China
Zhejiang Institute of Hydraulics and Estuary (Zhejiang Institute of Marine, Planning and Design), Hangzhou, China; Zhejiang Provincial Key Laboratory of Estuary and Coast, Hangzhou, China
Zhejiang Institute of Hydraulics and Estuary (Zhejiang Institute of Marine, Planning and Design), Hangzhou, China; Zhejiang Provincial Key Laboratory of Estuary and Coast, Hangzhou, China
