中国钱塘江河口潮汐能研究

IF 0.9 4区 环境科学与生态学 Q4 WATER RESOURCES
Wang Qiushun, Pan Cunhong, Chen Fuyuan
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引用次数: 0

摘要

摘要 潮孔向河口注入大量能量,潮孔的变化与其能量分布有关。本研究研究了潮孔能量的时空变化,以展示钱塘江河口潮孔的传播特征。基于高频场数据,论证了盐官站潮孔通过时单位面积势能和动能的特征。利用浅水方程建立了数值模型,研究了河口沿岸的潮孔能量。验证了2019年9月春潮期间的潮位、潮流和潮孔,说明了甘浦至温家堰断面的潮孔能及其分布特征。结果表明:大岔口河段潮汐径流能量明显下降,七格至文家岩河段潮汐径流能量下降相对较小,大岔口河段潮汐径流能量损失最大,七格至文家岩河段潮汐径流能量损失最小。尖山河段的能量损失最大。在高能断裂潮孔通过文家岩时,潮孔能量下降到 15%,表明潮孔在上游河段消失。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Study on the Tidal Bore Energy along the Qiantang River Estuary, China

Study on the Tidal Bore Energy along the Qiantang River Estuary, China

Abstract

Tidal bores inject large amounts of energy to the estuaries, and the variation of tidal bore is related to its energy distribution. In this study, the temporal and spatial changes of the tidal bore energy are investigated to demonstrate the propagation characteristics of tidal bores in the Qiantang River Estuary. Based on high frequency field data, the characteristics of the potential energy and the kinetic energy per unit area during the passage of tidal bores at Yanguan station is demonstrated. Numerical model employing shallow water equations is established to investigate the tidal bore energy along the estuary. Tidal level, tidal current and tidal bore during spring tides in September, 2019 are verified, and the tidal bore energy and its distribution characteristics along the sections from Ganpu to Wenjiayan are illustrated. The tidal bore energy is significantly decreased in the Daquekou reach but decreased relatively small in the reach from Qige to Wenjiayan. There is the maximum energy loss in the Jianshan reach. The tidal bore energy declines to 15% at Wenjiayan during the passage of the energetic breaking tidal bores, indicating tidal bore disappearance in the upstream reach.

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来源期刊
Water Resources
Water Resources 环境科学-水资源
CiteScore
1.60
自引率
20.00%
发文量
86
审稿时长
6-12 weeks
期刊介绍: Water Resources is a journal that publishes articles on the assessment of water resources, integrated water resource use, water quality, and environmental protection. The journal covers many areas of research, including prediction of variations in continental water resources and regime; hydrophysical, hydrodynamic, hydrochemical and hydrobiological processes, environmental aspects of water quality and protection; economic, social, and legal aspects of water-resource development; and experimental methods of studies.
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