Morphodynamics of Wadden Sea Areas – Field Measurements and Modeling

Albers, Thorsten; Lieberman, Nicole von

doi:10.1260/1759-3131.1.3-4.123

Cited by 5 publications

(5 citation statements)

References 2 publications

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“…Restoration of tidal flats, with the aim of area coastal protection, using the same principles, namely T-shaped fences, was adapted to the situation in the Mekong Delta using local materials. The most effective design of breakwaters was tested and permeable, T-shaped bamboo fences filled with soft brushwood provided the best results [67]. In other areas of the Mekong Delta cost parallel Melaleuca fences were used [68] and a comprehensive overview of managing erosion of mangrove-mud coasts with permeable dams from 5 countries in Asia and South America is provided in [64].…”

Section: The T-fencesmentioning

confidence: 99%

“…Boundary condition data on tides and wind from existing stations together with data on currents, waves, sediment concentrations and bathymetry recorded in the field were used to gain and improve the knowledge about hydrodynamic and morphodynamic processes [4,12,67,70].…”

Section: Numeric Modellingmentioning

confidence: 99%

“…Also the calculated depths of embedment could be verified. During the first field tests different tying materials (ropes, hemp rope, rattan and stainless-steel wire) and tying techniques were tested in order to find an optimised design and construction method [67].…”

Section: Placement Of T-fences To Minimise Lee Erosion (Bac Lieu Prov...mentioning

confidence: 99%

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Mangroves and Ecosystem-Based Coastal Protection in the Mekong River Delta, Vietnam

Schmitt,

Albers

2023

Environmental Sciences

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Development and the unsustainable use of natural resources in the coastal zone of the Mekong Delta, Vietnam, as well as erosion are threatening the protection function of the mangrove forests which protect the land behind the dyke from flooding and storms and provide co-benefits and livelihood for people in the coastal zone. These threats will be exacerbated by the impacts of climate change. Tidal flats and mangrove forests are an energy conversion system that provides ecosystem-based coastal protection. In sites where the mangrove belt has been destroyed and the tidal flat eroded, restoration of the tidal flats is a precondition for mangrove rehabilitation. Permeable bamboo fences, arranged in a T-shape, are effective for reducing erosion, stimulating sedimentation and thereby restoring tidal flats and re-creating conditions for mangrove regeneration. This cost-effective approach is only feasible within specific boundary conditions. Mangroves need to be protected from future anthropogenic destruction. This can best be achieved though co-management with the local people.

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Section: The T-fencesmentioning

confidence: 99%

Section: Numeric Modellingmentioning

confidence: 99%

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Mangroves and Ecosystem-Based Coastal Protection in the Mekong River Delta, Vietnam

Schmitt,

Albers

2023

Environmental Sciences

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Section: Numeric Modellingmentioning

confidence: 99%

Mangrove Biology, Ecosystem, and Conservation

2023

Environmental Sciences

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is a Senior Research Ecologist at the Environmental Protection Agency's (EPA) Gulf Ecosystem Measurement and Modeling Division. He is currently working with colleagues in the Sustainable and Healthy Communities Program to develop an index of community resilience to natural hazards, an index of human well-being that can be linked to changes in the ecosystem, social and economic services, and a community sustainability tool for communities with populations under 40,000. He leads research efforts for indicator and indices development. Dr. Summers is a systems ecologist and began his career at the EPA in 1989 and has worked in various programs and capacities. This includes leading the National Coastal Assessment in collaboration with the Office of Water which culminated in the award-winning National Coastal Condition Report series (four volumes between 2001 and 2012), and which integrates water quality, sediment quality, habitat, and biological data to assess the ecosystem condition of the United States estuaries. He was acting National Program Director for Ecology for the EPA between 2004 and 2006. He has authored approximately 150 peer-reviewed journal articles, book chapters, and reports and has received many awards for technical accomplishments from the EPA and from outside of the agency. Dr. Summers holds a BA in Zoology and Psychology, an MA in Ecology, and Ph.D. in Systems Ecology/Biology.

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“…It has an array of optical sensors embedded and is especially designed to measure several decimetres of the water column with a centimetre interval. This equipment has been used in rivers (Furgerot et al, 2016), lakes (Vijverberg et al, 2011), estuaries (Albers and von Lieberman, 2010), and laboratory experiments (Zhang et al, 2018), but has yet to be applied in the intertidal zone.…”

Section: Cross-checking Suspended Load Measurementsmentioning

confidence: 99%

Optimizing measurements of sediment transport in the intertidal zone

Brand

Chen

Montreuil

2020

Earth-Science Reviews

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The intertidal beach is very dynamic and is characterized by high sediment transport rates which may result in large topographic changes. Measuring techniques are well developed for both sediment transport and beach topography but the quantification of transport remains difficult. This paper provides an in-depth review of studies that cross-checked sediment transport measured underwater to transport derived from topographic change and/or predictive formulas to optimize future measuring campaigns in the intertidal zone. Based on these studies it is strongly recommended to measure sediment transport at multiple locations in the intertidal zone, although it is recognized that this is costly. When the suspended sediment is mixed and vertically stratified, it should be gauged over the entire water column. Acoustic backscatter intensity can be used for this purpose but needs to be corrected for grain size and turbulence. When cross-checking measured sediment transport rates with beach volume changes topographic profiles may not be sufficient. Instead, laser scanning of the beach is recommended. Additionally, valuable insights can be obtained from continuously measuring the beach topography. When beach topography is only measured during low tide, wind-driven transport should be taken into account during energetic conditions. It is deemed necessary to improve sensors to measure bed load transport and suspended sediment transport close to the bed and to further improve formulas to predict sediment transport. With the suggestions given in this paper it is encouraged to perform field investigations of sediment transport in the intertidal zone to improve our knowledge of the intertidal beach morphodynamics.

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Morphodynamics of Wadden Sea Areas – Field Measurements and Modeling

Cited by 5 publications

References 2 publications

Mangroves and Ecosystem-Based Coastal Protection in the Mekong River Delta, Vietnam

Mangroves and Ecosystem-Based Coastal Protection in the Mekong River Delta, Vietnam

Mangrove Biology, Ecosystem, and Conservation

Optimizing measurements of sediment transport in the intertidal zone

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