Preprints
https://doi.org/10.5194/essd-2021-180
https://doi.org/10.5194/essd-2021-180

  21 Jun 2021

21 Jun 2021

Review status: this preprint is currently under review for the journal ESSD.

Laboratory data on wave propagation through vegetation with following and opposing currents

Zhan Hu1,2,3, Simei Lian1,3, Huayu Wei1,4, Yulong Li5, Marcel Stive6, and Tomohiro Suzuki6,7 Zhan Hu et al.
  • 1School of Marine Science, Sun Yat-Sen University, and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, 519082, China
  • 2Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Guangzhou, 510275, China
  • 3Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, China
  • 4Department of Ocean Science, Hong Kong University of Science and Technology, Hong Kong, China
  • 5Technology Centre for Offshore and Marine, 119077, Singapore
  • 6Faculty of Civil Engineering and Geosciences, Delft University of Technology, Stevinweg 1, Delft 2628 CN, the Netherlands
  • 7Flanders Hydraulics Research, Berchemlei 115, Antwerp 2140, Belgium

Abstract. Coastal vegetation has been increasingly recognized as effective buffer against wind waves. Recent studies have advanced our understanding of wave dissipation process in vegetation (WDV). In intertidal environments, waves commonly propagate into vegetation fields with underlying tidal currents, which may alter WDV, but such influence is often overlooked. The key mechanism of WDV with co-existing currents are understudied, as previous studies have drawn contradictory conclusions on the effect of following currents on WDV. Subsequent laboratory experiments have partly explained the inconsistent conclusions, but relevant data are rarely available for theoretical or modelling development. Additionally, while the vegetation drag coefficient is a key factor influencing WDV, it is rarely reported for combined wave-current flows. This paper reports a unique dataset from two flume experiments, including 668 wave-only and wave with following/opposing current tests. A variety of data including wave height, drag coefficient, in-canopy velocity and acting force on mimic vegetation stem are recorded. This dataset is expected to assist future theoretical advancement on WDV, which may ultimately lead to more accurate prediction of wave dissipation capacity of real coastal wetlands. The dataset is available from figshare (https://doi.org/10.6084/m9.figshare.13026530.v2; Hu et al., 2020) with clear instructions for reuse. The current dataset will expand with additional WDV data from ongoing as well as planned future observation in real mangrove wetlands.

Zhan Hu et al.

Status: open (until 16 Aug 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2021-180', Anonymous Referee #1, 22 Jul 2021 reply
  • RC2: 'Comment on essd-2021-180', Anonymous Referee #2, 23 Jul 2021 reply

Zhan Hu et al.

Data sets

A dataset on wave propagation through vegetation with coexisting currents Hu, Z.; Lian, S.; Wei, H.; Li, Y.; Uijttewaal, W.; Suzuki, T. https://doi.org/10.6084/m9.figshare.13026530.v2

Zhan Hu et al.

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Short summary
The process of wave attenuation in vegetation is important as it is related to the coastal protection service these coastal ecosystems. In intertidal environments, waves often propagate into vegetation fields with underlying tidal currents, but the effect of these currents on the wave attenuation is often overlooked and the relevant dataset is rarely available. Here, we present a dataset of wave propagation through vegetation with following and opposing currents to assist further studies.