Assessing the effect of coral reef restoration location on coastal flood hazard along the San Juan Coastline, Puerto Rico

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: April 4, 2025

Coastal resilience has become a pressing global issue due to the growing vulnerability of coastlines effects climate change. Nature-based solutions have emerged as promising approach coastal protection not only enhance resilience, but also restore critical ecosystems. Coral reef restoration potential provide ecosystem services benefits; however, there are still key uncertainties in linking design reductions flood hazard under current and future conditions. In this study, we applied one-dimensional two-dimensional numerical engineering models, calibrated validated using field data, evaluate effectiveness coral scenarios on waves, water levels, flooding along coast San Juan, Puerto Rico, U.S.A. Model results indicate small reduction maximum levels proposed scenarios. This underscores importance these endeavors, for ecological preservation preventing further deterioration. Such is essential mitigating increased risks anticipated future. Results from study information guide policymakers managers making informed decisions viable project options. By systematically evaluating how location impacts hazards, communities can develop implement proactive strategies mitigate flood-related risk. addition, by restoring reefs, contribute environmental while ensuring sustainable development environments.

Language: Английский

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Optimizing Infragravity Wave Attenuation to Improve Coral Reef Restoration Design for Coastal Defense

Journal of Marine Science and Engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 768 - 768

Published: May 1, 2024

Coral reefs are effective natural flood barriers that protect adjacent coastal communities. As the need to adapt rising sea levels, storms, and environmental changes increases, reef restoration may be one of best tools available mitigate flooding along tropical coastlines, now in future. Reefs act as a barrier incoming short-wave energy but can amplify low-frequency infragravity waves that, turn, drive low-lying coastlines. Here, we investigate whether spacing elements optimized maximize wave dissipation while minimizing number elements—a key factor cost project. With this goal, model hydrodynamics over coral or artificial reef, represented by canopy idealized hemispherical roughness elements, using three-dimensional Navier–Stokes equations solver (OpenFOAM). The results demonstrate denser canopies produce greater under larger with longer periods. Wave is also frequency-dependent: dense remove at predominant frequency, whereas sparse higher frequencies, hence less efficient. We identify an inflection point density–energy curve balances optimal losses minimum elements. Through work, show there ideal per across-shore meter flat installed dissipate for given incident heights These have implications designing projects on flats both from defense costing standpoint.

Language: Английский

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Runaway Climate Across the Wider Caribbean and Eastern Tropical Pacific in the Anthropocene: Threats to Coral Reef Conservation, Restoration, and Social–Ecological Resilience

Atmosphere, Journal Year: 2025, Volume and Issue: 16(5), P. 575 - 575

Published: May 11, 2025

Marine heatwaves (MHWs) are increasingly affecting tropical seas, causing mass coral bleaching and mortality in the wider Caribbean (WC) eastern Pacific (ETP). This leads to significant loss, reduced biodiversity, impaired ecological functions. Climate models forecast a troubling future for Latin American reefs, but downscaled projections WC ETP remain limited. Understanding regional temperature thresholds that threaten reef futures restoration efforts is critical. Our goals included analyzing historical trends July–August–September–October (JASO) anomalies exploring at subregional country levels. From 1940 2023, JASO air ocean showed increases. Projections indicate even under optimistic scenario 4.5, temperatures may exceed +1.5 °C threshold beyond pre-industrial levels by 2040s +1.0 annual maximums 2030s, resulting severe mortality. Business-as-usual 8.5 suggests conditions will become intolerable conservation with decadal warming largely surpassing rates, unbearable corals. The immediate development of local adaptive plans, along climate change adaptation mitigation strategies, essential provide time scenarios materialize.

Language: Английский

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Evaluation of synthetic sponge to control wave-induced currents in coastal waters

Ocean Engineering, Journal Year: 2024, Volume and Issue: 296, P. 116973 - 116973

Published: Feb. 12, 2024

Language: Английский

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Exploring implications of wave characteristics on the functionality of mimetic tubular sponges

Physics of Fluids, Journal Year: 2024, Volume and Issue: 36(3)

Published: March 1, 2024

Marine sponges influence the flow hydrodynamics by suction/pumping mechanism. They provide a recirculation and remove pollutants from their residence. Previous studies have validated efficacy of mimetic in improving momentum transfer marine environments. This study endeavors to explore impact wave characteristics (i.e., height period) on near sponges. Both physical numerical simulations were undertaken this phenomenon. Experimental results unveiled that efficiency sponge is contingent upon some circumstances. When waves short period height, suction effects prevail. In such cases, orbital velocity tends be negative direction, leading suppressed fluctuating velocities reduction turbulent kinetic energy throughout water column. Thus, penetration shear layer column occurrence wake-street diminish. Conversely, an increase enhances exchange through Surface Line Integral Convolution Three-Dimensional stream trace visualizations using OpenFOAM insights into generation spirals vortices induced

Language: Английский

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Substrate-mediated alterations to hydrodynamic conditions enhances shellfish larval settlement: Implications for artificial reef restoration

Ecological Engineering, Journal Year: 2024, Volume and Issue: 212, P. 107474 - 107474

Published: Dec. 4, 2024

Language: Английский

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Bagaimana Praktik dan Makna Blue Accounting Bagi Bisnis Wisata di Teluk Tomini dalam Studi Etnometodologi?

Wahana Riset Akuntansi, Journal Year: 2024, Volume and Issue: 12(1), P. 49 - 49

Published: April 24, 2024

Purpose: - This study aims to explore the practice and meaning of blue accounting in special interest tourism businesses Tomini Bay. Design/methodology/approach – research is a qualitative using ethnomethodology as its method. Data were collected through observation, interviews focus group discussions (FGDs). The stages data analysis follow ethnomethodological rules, including reduction, presentation, indexicality, reflexivity conclusion drawing. Findings results showed that implemented by awareness an effort environmental sustainability. application carried out form simple financial records, accountability God, humans nature. leads fulfillment business information for internal external parties. Blue implies practiced according needs, coastal protection, economic, ecological, social cultural value togetherness (huyula) main determining factor implementation accounting. Originality/value existence values able influence accounting, so it plays maximum role maintaining financial, ecological stability community organization. Research limitations/implications provides confidence practices are built on basis spiritual inherent soul community, addition values. Belief can be strength sector further improve capacity manage

Language: Английский

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Substrate-Mediated Alterations to Hydrodynamic Conditions Enhances Shellfish Larval Settlement: Implications for Artificial Reef Restoration

Published: Jan. 1, 2024

Language: Английский

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Rapid simulation of wave runup on morphologically diverse, reef-lined coasts with the BEWARE-2 (Broad-range Estimator of Wave Attack in Reef Environments) meta-process model

Natural hazards and earth system sciences, Journal Year: 2024, Volume and Issue: 24(10), P. 3597 - 3625

Published: Oct. 24, 2024

Abstract. Low-lying, tropical, coral-reef-lined coastlines are becoming increasingly vulnerable to wave-driven flooding due population growth, coral reef degradation, and sea-level rise. Early-warning systems (EWSs) needed enable coastal authorities issue timely alerts coordinate preparedness evacuation measures for their communities. At longer timescales, risk management adaptation planning require robust assessments of future hazard considering uncertainties. However, diversity in morphologies complex hydrodynamics compared sandy shorelines, there have been no analytical solutions wave runup allow the development large-scale EWSs assessment frameworks reef-lined coasts. To address need fast, predictions that account natural variability morphologies, we constructed BEWARE-2 (Broad-range Estimator Wave Attack Reef Environments) meta-process modeling system. We developed this model using a training dataset computed by XBeach Non-Hydrostatic process-based hydrodynamic 440 combinations water level, height, period with 195 representative profiles encompass real-world fringing systems. Through innovation, can be applied larger range settings than meta-models rely on parametric description geometry. In validation stage, system produced results had relative root mean square error 13 % bias 5 simulated large oceanographic forcing conditions diverse (root 0.63 0.26 m, respectively, 4.85 m). Incorporating modifications variations roughness beach slope allows systematic errors (relative bias) reduced factor 1.5–6.5 relatively coarse or smooth reefs mild steep slopes. This prediction provided is faster 4–5 orders magnitude full, could therefore integrated into coasts used flood assessments.

Language: Английский

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Numerical study of regular wave dynamics for optimizing coral reef restoration

Ocean Engineering, Journal Year: 2024, Volume and Issue: 315, P. 119768 - 119768

Published: Nov. 23, 2024

Language: Английский

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