Ecosystem-Based Tsunami Disaster Risk Reduction in Indonesian Coastal Areas

Rudianto, Eko; Muhari, Abdul; Harada, Kenji; Matsutomi, Hideo; Siry, Hendra Yusran; Sadtopo, Enggar; Kongko, Widjo

doi:10.1007/978-3-319-28528-3_3

Cited by 4 publications

(2 citation statements)

References 25 publications

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“…I n the past two decades, several devastating tsunami events have increased awareness of the threat that tsunamis pose to coastal communities and invigorated a debate about naturebased approaches for tsunami risk reduction (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11). Naturebased approaches are attractive because they potentially offer numerous benefits beyond risk mitigation including social, economic, and environmental services (12) and can be cheaper to build than sea walls (see SI Appendix for additional factors contributing to the cost-benefit ratio of the two approaches). Our understanding of and ability to quantify how tsunamis interact with natural features, however, are limited, which translates into considerable uncertainty regarding the protective benefits of nature-based approaches and their optimal design (4).…”

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confidence: 99%

The protective benefits of tsunami mitigation parks and ramifications for their strategic design

Lunghino

Tate

Mazereeuw

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

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Nature-based solutions are becoming an increasingly important component of sustainable coastal risk management. For particularly destructive hazards like tsunamis, natural elements like vegetation are often combined with designed elements like seawalls or dams to augment the protective benefits of each component. One example of this kind of hybrid approach is the so-called tsunami mitigation park, which combines a designed hillscape with vegetation. Despite the increasing popularity of tsunami mitigation parks, the protective benefits they provide are poorly understood and incompletely quantified. As a consequence of this lack of understanding, current designs might not maximize the protective benefits of tsunami mitigation parks. Here, we numerically model the interactions between a single row of hills with an incoming tsunami to identify the mechanisms through which the park protects the coast. We initialize the tsunami as an N wave that propagates to shore and impacts the coast directly. We find that partial reflection of the incoming wave is the most important mechanism by which hills reduce the kinetic energy that propagates onshore. The protective benefit of tsunami mitigation parks is thus comparable to that of a small wall, at least for tsunamis with amplitudes that are comparable to the hill height. We also show that hills could elevate potential damage in the immediate vicinity of the hills where flow speeds increase compared to a planar beach, suggesting the need to include a buffer zone behind the hills into a strategic park design.

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confidence: 99%

The protective benefits of tsunami mitigation parks and ramifications for their strategic design

Lunghino

Tate

Mazereeuw

et al. 2020

Proc. Natl. Acad. Sci. U.S.A.

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“…This strategy enhances the coastal environment by utilizing ecosystem services to reduce the impact of future tsunamis, while also generating various economic advantages for local residents. The numerical analysis findings indicate that the inclusion of a greenbelt with a width of 50 meters can lead to a reduction of 13.57% in the maximum depth of flooding and an 18.4% decrease in the maximum speed of a tsunami [26]. Approximately 50% of mangrove trees with a trunk diameter ranging from 20 to 25 cm have the ability to withstand a tsunami measuring less than 6 to 7 meters in height.…”

Section: Introductionmentioning

confidence: 99%

Valuing hybrid engineering approach: ecosystem and structural based DRR using InVEST model of coastal zone Sikka Flores-Literature Review

Purwanto,

Paripurno,

Prasetya

2024

IOP Conf. Ser.: Earth Environ. Sci.

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The effectiveness and long-term viability of implementing eco-DRR are heavily influenced by the regional context, including factors such as geographical locations, circumstances, and features of risks. The implementation of eco-DRR measures in coastal areas is effectively mitigating the hazards posed by high waves and other hydro-meteorological events, including storm surges, erosion, and coastal floods. The study was carried out within the framework of mangrove forest development as a means of combined protection and hard structural intervention. The success and efficacy of this endeavor rely on various circumstances, such as the magnitude of the large waves and the characteristics of the nearshore bathymetry, which dictate the extent to which the waves reach the coastline beach. In order to achieve optimal effectiveness and provide prompt safeguarding, it is necessary to employ a hybrid approach that combines ecosystem-based disaster risk reduction (DRR) methods with physical structures. This is because non-structural measures, such as ecosystems, inherently require time to grow and are highly susceptible to destruction from waves, rock debris, and water currents. Nevertheless, the ’hybrid approach’ or amalgamation must be formulated in a manner that does not engender novel or distinct dangers in various areas. This study seeks to conduct a comparative analysis of studies on Eco-DRR (Ecological Disaster Risk Reduction) focusing on high waves and other hydrometeorological risks in coastal areas. The objective is to develop a hybrid model that combines Eco-DRR and engineering effectiveness evaluation for disaster risk management, specifically for the Sikka Flores coastline area.

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The Coastal Environment and the Reconstruction Process After the Great East Japan Earthquake: A Few Notes

Santiago-Fandiño¹,

Mas

2017

Advances in Natural and Technological Hazards Research

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Ecosystem-Based Tsunami Disaster Risk Reduction in Indonesian Coastal Areas

Cited by 4 publications

References 25 publications

The protective benefits of tsunami mitigation parks and ramifications for their strategic design

The protective benefits of tsunami mitigation parks and ramifications for their strategic design

Valuing hybrid engineering approach: ecosystem and structural based DRR using InVEST model of coastal zone Sikka Flores-Literature Review

The Coastal Environment and the Reconstruction Process After the Great East Japan Earthquake: A Few Notes

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