Measurements of hydrodynamics, sediment, morphology and benthos on Ameland ebb-tidal delta and lower shoreface

Abstract

Abstract. A large-scale field campaign was carried out on the ebb-tidal delta (ETD) of Ameland Inlet, a basin of the Wadden Sea in the Netherlands, as well as on three transects along the Dutch lower shoreface. The data have been obtained over the years 2017–2018. The most intensive campaign at the ETD of Ameland Inlet was in September 2017. With this campaign, as part of KustGenese2.0 (Coastal Genesis 2.0) and SEAWAD, we aim to gain new knowledge on the processes driving sediment transport and benthic species distribution in such a dynamic environment. These new insights will ultimately help the development of optimal strategies to nourish the Dutch coastal zone in order to prevent coastal erosion and keep up with sea level rise. The dataset obtained from the field campaign consists of (i) single- and multi-beam bathymetry; (ii) pressure, water velocity, wave statistics, turbidity, conductivity, temperature, and bedform morphology on the shoal; (iii) pressure and velocity at six back-barrier locations; (iv) bed composition and macrobenthic species from box cores and vibrocores; (v) discharge measurements through the inlet; (vi) depth and velocity from X-band radar; and (vii) meteorological data. The combination of all these measurements at the same time makes this dataset unique and enables us to investigate the interactions between sediment transport, hydrodynamics, morphology and the benthic ecosystem in more detail. The data provide opportunities to calibrate numerical models to a high level of detail. Furthermore, the open-source datasets can be used for system comparison studies. The data are publicly available at 4TU Centre for Research Data at https://doi.org/10.4121/collection:seawad (Delft University of Technology et al., 2019) and https://doi.org/10.4121/collection:kustgenese2 (Rijkswaterstaat and Deltares, 2019). The datasets are published in netCDF format and follow conventions for CF (Climate and Forecast) metadata. The http://data.4tu.nl (last access: 11 November 2020) site provides keyword searching options and maps with the geographical position of the data.

Characterizing the Composition of Sand and Mud Suspensions in Coastal and Estuarine Environments Using Combined Optical and Acoustic Measurements

“…A field measurement campaign was carried out from August 29 to October 9, 2017, with the goal of characterizing hydrodynamic and sediment transport processes in the inlet and on its ebb-tidal delta (Brakenhoff et al, 2020;De Wit et al, 2019;Reniers et al, 2019;van der Werf et al, 2019;Van Prooijen et al, 2020). Measurements of flow, waves, SPM, bedform dynamics, and water quality were made at four locations across the site.…”

“…Centre for Research Data at https://doi.org/10.4121/collection:seawad Delft University of Technology et al ( 2019). Details of this data set can be found in Van Prooijen et al (2020) and van der Werf et al (2019). Additional files from this study including laboratory experimental data are publicly available at: https://doi.…”

Observations of near-bed orbital velocities and small-scale bedforms on the Dutch lower shoreface

“…The Ameland lower shoreface (DVA) is situated directly offshore the northern part of the ebb tidal delta of Ameland Inlet. It links to the Ameland Inlet field site (AZG) to the south (more information on the AZG campaign can be found in van Prooijen et al (2020) and Brakenhoff et al (2020a)). The Terschelling study area is located directly offshore the central part of the island of Terschelling.…”

“…Part of this program was an extensive field campaign in close collaboration with the Universities of Delft, Utrecht and Twente, via the SEAWAD project. Hydrodynamics, turbidity, sediment composition, bedforms and benthic species distribution were measured at various locations along the Dutch coast (see van Prooijen et al, 2020).…”

A Self-Adaptive Method for Mapping Coastal Bathymetry On-The-Fly from Wave Field Video

“…Observations of near-shore hydrodynamics and bathymetry are used for various purposes: to study and manage the coast [1][2][3], to update early warning systems [4], to monitor swimmer safety [5][6][7], for dredging-and-dumping surveillance [8], and military landing operations [9]. An observation of hydrodynamics or bathymetry with areal coverage, a map, is thereby often beneficial if not a prerequisite to recognize relevant spatial details.…”