Detached breakwaters: Communities' preferences for sustainable coastal protection

Saengsupavanich, Cherdvong

doi:10.1016/j.jenvman.2012.11.029

Cited by 26 publications

(15 citation statements)

References 26 publications

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“…When there is significant variability among weights obtained from different stakeholders, it may be challenging to identify an appropriate "group summary" metric. Means (Ryu et al, 2011;Tian et al, 2013), medians (Kolagani et al, 2015), and even the geometric mean (Saengsupavanich, 2013) have been proposed. Some modelers preserve the range of values by propagating the variability across stakeholders through the model using the Monte Carlo simulation approach (Rosenbloom, 1996;Hauser and Tadikamalla, 1996;Lafleur, 2011;Kolagani et al, 2016).…”

Section: Analytic Hierarchy Process (Ahp)mentioning

confidence: 99%

Tools and methods in participatory modeling: Selecting the right tool for the job

Voinov

Jenni

Gray

et al. 2018

Environmental Modelling & Software

321

247

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Various tools and methods are used in participatory modelling, at different stages of the process and for different purposes. The diversity of tools and methods can create challenges for stakeholders and modelers when selecting the ones most appropriate for their projects. We offer a systematic overview, assessment, and categorization of methods to assist modelers and stakeholders with their choices and decisions. Most available literature provides little justification or information on the reasons for the use of particular methods or tools in a given study. In most of the cases, it seems that the prior experience and skills of the modelers had a dominant effect on the selection of the methods used. While we have not found any real evidence of this approach being wrong, we do think that putting more thought into the method selection process and choosing the most appropriate method for the project can produce better results. Based on expert opinion and a survey of modelers engaged in participatory processes, we offer practical guidelines to improve decisions about method selection at different stages of the participatory modeling process.

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Section: Analytic Hierarchy Process (Ahp)mentioning

confidence: 99%

Tools and methods in participatory modeling: Selecting the right tool for the job

Voinov

Jenni

Gray

et al. 2018

Environmental Modelling & Software

321

247

View full text Add to dashboard Cite

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“…The area behind the jetty-type breakwater at Tok Jembal, however, displayed a positive +8 m accretion. According to Saengsupavanich (2013), Aouiche et al (2016) and Prukpitikul et al (2018), the jetty-type breakwater (or detached breakwaters) is able to reduce storm-associated energy, such as strong currents and waves, which has resulted in sediment accretion behind the breakwater.…”

Section: Shoreline Changesmentioning

confidence: 99%

“…In India, Vaidya et al (2015) studied a series of breakwater and groyne impacts to the shoreline before any coastal planning had taken place. While in Thailand, Saengsupavanich (2013) and Prukpitikul et al (2018) made proper plans to use the breakwaters to reduce wave height before it moved to the coastline.…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effects of Beach Nourishment on Littoral Morphodynamics at Kuala Nerus, Terengganu (Malaysia)

Ariffin¹,

Zulfakar²,

Redzuan³

et al. 2020

J. Sustain. Sci. Manage.

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Since 2008, Kuala Nerus has undergone rapid urbanization along its coastline, resulting in the loss of sand along the littoral zone. Due to the heavy erosion in 2012 at Tok Jembal beach that migrated to Universiti Malaysia Terengganu (UMT) beach in 2013, the Department of Irrigation and Drainage has implemented a coastal defence project to mitigate erosion by building a series of ripraps/revetments along the coasts. Additionally, breakwaters and groyne structures were built in combination with beach nourishment programme. For the sustenance of the local fishermen community, the Malaysia Public Works Department replaced one of the breakwaters to a jetty-type breakwater at Tok Jembal beach. Shoreline evaluations, beach profile measurements and numerical modelling were used in this present study to identify the effectiveness of combining the coastal defence and beach nourishment programmes. The combination of programmes successfully initiated the accretion of a ~30 m beach dune and created new beaches. However, erosion remains persistent in the beach that was unprotected and exposed directly to the South China Sea. We posit that a combination of coastal defence and beach nourishment programmes can potentially interrupt dynamic coastal processes, especially the current parameters.

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“…While arithmetic mean (Ryu et al, 2011;Tian et al, 2013) can also be used to aggregate these weights, median is preferred when the number of stakeholders is typically small. Geometric mean (Saengsupavanich, 2013) is not used as the stakeholders are not homogeneous.…”

Section: Proposed Frameworkmentioning

confidence: 99%

“…Identifying Criteria (Stage-1). During stage-1, criteria identified through review of literature and through consultations with technical experts were combined into higher level criteria (Saengsupavanich, 2013) before deriving their weights using AHP. They are summarized in Table 3 and are explained in following sections.…”

Section: Stage-1: Using Criteria From Literature and Technical Expertsmentioning

confidence: 99%

Participatory Model Calibration for Improving Resource Management Systems: Case Study of Rainwater Harvesting in an Indian Village

Kolagani

Ramu

Varghese

2015

J American Water Resour Assoc

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While planning resource management systems in rural areas, it is important to consider criteria that are specific to the local social conditions. Such criteria might change from one region to another and are hence best identified using a participatory approach. In this work, we propose a participatory framework to identify such criteria and derive their weights. These identified criteria and their weights are used as parameters to develop a quantitative model for evaluating efficiency of each system. Such a model can serve as a support tool for stakeholders to simulate and analyze “what‐if” scenarios, evaluate alternatives, and select one which best satisfies their requirements. We use existing systems to test the model by comparing efficiencies evaluated by the model to efficiencies perceived by the stakeholders. The model is calibrated by repeating the process until statistically significant correlation is achieved between evaluated and perceived efficiencies. The novelty of the proposed framework lies in treating efficiencies perceived by the stakeholders as the ground truth since they know these systems well and are their ultimate users. The framework is successfully demonstrated using case study of rainwater harvesting (RWH) systems in an Indian village. The resulting calibrated model can be used to plan new RWH systems in this region and similar regions elsewhere. The framework can be used to plan other resource management systems in various regions.

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Detached breakwaters: Communities' preferences for sustainable coastal protection

Cited by 26 publications

References 26 publications

Tools and methods in participatory modeling: Selecting the right tool for the job

Tools and methods in participatory modeling: Selecting the right tool for the job

Evaluating the Effects of Beach Nourishment on Littoral Morphodynamics at Kuala Nerus, Terengganu (Malaysia)

Participatory Model Calibration for Improving Resource Management Systems: Case Study of Rainwater Harvesting in an Indian Village

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