Thickness-Weighted Averaging in Tidal Estuaries and the Vertical Distribution of the Eulerian Residual Transport
Thickness-Weighted Averaging in Tidal Estuaries and the Vertical Distribution of the Eulerian Residual Transport
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DOI：
10.1175/jpo-d-18-0083.1
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发表时间：
2019-06
影响因子：
3.5
通讯作者：
K. Klingbeil;J. Becherer;E. Schulz;H. Swart;H. Schuttelaars;A. Valle‐Levinson;H. Burchard
中科院分区：
文献类型：
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作者：
K. Klingbeil;J. Becherer;E. Schulz;H. Swart;H. Schuttelaars;A. Valle‐Levinson;H. Burchard
本文提出了广义垂直坐标下的厚度加权平均（TWA），作为现有各种海洋和河口潮汐平均概念的统一框架。所得残余量的垂直剖面取决于特定的垂直坐标，该坐标在平均过程中保持固定。这种相关性通过应用于含泥沙输运的一维解析潮汐流、潮汐通道的现场观测和二维河口的模型结果得到证明。不同坐标系统的使用提供了关于剩余动力学的互补观点，并强调了潮汐平均获得的剩余量的正确解释的重要性。
This paper presents thickness-weighted averaging (TWA) in generalized vertical coordinates as a unified framework for a variety of existing tidal-averaging concepts in seas and estuaries. Vertical profiles of resulting residual quantities depend on the specific vertical coordinate, which is held fixed during the averaging process. This dependence is demonstrated through the application to one-dimensional analytical tidal flow with sediment transport, to field observations from a tidal channel, and to model results from a two-dimensional estuary. The use of different coordinate systems provides complementary views on the residual dynamics and stresses the importance of a correct interpretation of residual quantities obtained by tidal averaging.