Thickness-weighted averaging in tidal estuaries and the vertical distribution of the eulerian residual transport

Journal Article (2019)
Author(s)

Knut Klingbeil (Hamburg University of Technology, Leibniz Institute for Baltic Sea Research Warnemünde)

Johannes Becherer (Oregon State University)

Elisabeth Schulz (Leibniz Institute for Baltic Sea Research Warnemünde)

Huib E. de Swart (Universiteit Utrecht)

H. M. Schuttelaars (TU Delft - Mathematical Physics)

Arnoldo Valle-Levinson (University of Florida)

Hans Burchard (Leibniz Institute for Baltic Sea Research Warnemünde)

Research Group
Mathematical Physics
Copyright
© 2019 Knut Klingbeil, Johannes Becherer, Elisabeth Schulz, Huib E. de Swart, H.M. Schuttelaars, Arnoldo Valle-Levinson, Hans Burchard
DOI related publication
https://doi.org/10.1175/JPO-D-18-0083.1
More Info
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Publication Year
2019
Language
English
Copyright
© 2019 Knut Klingbeil, Johannes Becherer, Elisabeth Schulz, Huib E. de Swart, H.M. Schuttelaars, Arnoldo Valle-Levinson, Hans Burchard
Research Group
Mathematical Physics
Issue number
7
Volume number
49
Pages (from-to)
1809-1826
Reuse Rights

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Abstract

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.

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