A Digital Twin modelling framework for the assessment of seagrass Nature Based Solutions against storm surges

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 847, P. 157603 - 157603

Published: July 25, 2022

In this paper we demonstrate a novel framework for assessing nature-based solutions (NBSs) in coastal zones using new suite of numerical models that provide virtual "replica" the natural environment. We design experiments use Digital Twin strategy to establish wave, sea level and current attenuation due seagrass NBSs. This modelling allows us answer "what if" scenario questions such as: (i) are indigenous meadows able reduce energy storm surges, if so how? (ii) what best types their landscaping optimal wave attenuation? An important result study is show seagrasses an choice does not directly attenuate but amplitudes. reveals link between NBS components disruptive potential surges (waves level) opens up avenues future studies.

Language: Английский

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Seagrass as a nature-based solution for coastal protection

Ecological Engineering, Journal Year: 2024, Volume and Issue: 206, P. 107316 - 107316

Published: June 19, 2024

Language: Английский

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The Importance of Storm Surge for Sediment Delivery to Microtidal Marshes

Journal of Geophysical Research Earth Surface, Journal Year: 2022, Volume and Issue: 127(9)

Published: Aug. 19, 2022

Abstract Storm surge has the potential to significantly increase suspended sediment flux microtidal marshes. However, overall effects of storm on marsh deposition have not been well quantified, with most modeling studies focusing regular (astronomical) tidal flooding. Here we applied Delft3D model a bay‐marsh complex in Hog Bay, Virginia quantify contributions deposition. We validated using spatially distributed hydrodynamic and data collected from site ran simulations under different conditions with/without storm‐driven water level changes. Our results show that episodic events occurred 5% time at our study site, but contributed 40% during 2009–2020. illustrate while wind‐driven waves control resuspension flats, storms was largely determined by inundation associated levels. A moderate event can double marshes around bay deliver more interior compared include wind variations Simulations response varying magnitude intensity reveal total increased linearly intensity, suggesting future changes and/or frequency would significant implications for supply site.

Language: Английский

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Hydrodynamics across seagrass meadows and its impacts on Indonesian coastal ecosystems: A review

Frontiers in Earth Science, Journal Year: 2023, Volume and Issue: 11

Published: Feb. 9, 2023

Seagrass canopies are important components of the world’s coastal environments providing critical ecological services. Nearshore hydrodynamics, i.e., waves and currents, essential in controlling processes across environments. meadows can impose more complex hydrodynamics by attenuating sea-swell decreasing impact nearshore mean water level rise due to wave setup Infragravity (IG) waves. Consequently, seagrasses dissipate reduce flows allowing sediments settle accrete shorelines. However, despite their significant roles, knowledge Indonesian seagrass ecosystems is relatively limited compared other such as sandy beaches, mangroves, coral reefs. This review highlights dynamics interaction with sediment transport processes, including biogeochemical dispersal on ecosystem contributing existing research Indonesia. The associated literature collected from scientific databases Scopus Google Scholar that range between 1965 2021. result showed most hydrodynamic was carried out temperate zones. Until recently, there have been publications discussing (tropical) parameters, even though region has abundant species. Moreover, Indonesia strongly influenced various atmospheric-oceanic forcing, Asian monsoon affecting dynamic area ecosystems. At a canopy scale, correlation system yet be explored. Considering potential benefit ecosystems, developing future overcoming gaps gained could support services resilience hazards climate change.

Language: Английский

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Influence of seagrass meadow length on beach morphodynamics: An experimental study

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 921, P. 170888 - 170888

Published: Feb. 23, 2024

A novel flume experiment was conducted to compare the sheltering effect of surrogate seagrass meadows two different lengths against a bare beach (benchmark). The analyses focused on assessing impact meadow cross-shore extent wave height attenuation, behaviour orbital velocity components, sediment transport, and shoreline erosion. Throughout tests in large-scale CIEM at LIM/UPC Barcelona, density submergence ratio remained constant, while irregular waves were run over an initial 1:15 sand profile. In both layouts, persistent decrease from offshore area front breaking zone found. This reduction directly correlated with length meadow. As result energy, less erosion occurred accordance height. mean velocities exhibited changes profile immediate behind meadow, phenomenon not observed more onshoreward positions. Orbital displayed exclusively for long case. up zone. consequence these changes, layout led volume transport breaker bar closer shoreline. short resulted higher compared layout, although still than benchmark layout. Furthermore, final situated location similar that

Language: Английский

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Spatial sedimentation and plant captured sediment within seagrass patches

Marine Environmental Research, Journal Year: 2023, Volume and Issue: 188, P. 105997 - 105997

Published: April 23, 2023

Habitat degradation in coastal ecosystems has resulted the fragmentation of aquatic vegetation and compromised their role supplying essential ecological services such as trapping sediment or sequestering carbon. Fragmentation changed seagrass architecture by decreasing density canopy engendering small patches vegetated areas. This study aims to quantify different patch sizes with densities have spatial distribution within a patch. To this aim, two densities, four lengths, wave frequencies were considered. The amounts deposited onto bed, captured plant leaves, remaining suspension canopy, above used understand impact hydrodynamics on patterns patches. In all cases studied, reduced suspended concentrations, increased capture particles sedimentation rates bed. For lowest frequency studied (0.5 Hz), bottom was enhanced at edges, resulting heterogeneous patterns. Therefore, restoration preservation landscapes can help face future climate change scenarios where an increase mitigate predicted sea level rise

Language: Английский

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Seagrass ecosystem recovery: Experimental removal and synthesis of disturbance studies

Limnology and Oceanography, Journal Year: 2024, Volume and Issue: 69(7), P. 1593 - 1605

Published: June 27, 2024

Abstract Net global losses of seagrasses have accelerated efforts to understand recovery from disturbances. Stressors causing disturbances (e.g., storms, heatwaves, boating) vary temporally and spatially within meadows potentially affecting recovery. To test differential recovery, we conducted a removal experiment at sites that differed in thermal stress for temperate seagrass ( Zostera marina ). We also synthesized prior studies assess general patterns. Seagrass shoots were removed 28.3 m 2 plots edge central meadow South Bay, Virginia, USA. hypothesized faster where greater oceanic exchange reduces stress. Contrary our hypothesis was most rapid the matching control site shoot density 24 months. Recovery incomplete estimated require 158 Differences likely due storm‐driven sediment erosion sites. Based on data studies, which primarily monospecific , recover across broad range conditions with positive, nonlinear relationship between disturbance area time. Our indicates position affects susceptibility length Linking this finding literature synthesis suggests increased attention spatial context will contribute better understanding variation rates.

Language: Английский

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Sediment sorting within a relatively wave-exposed and sandy subtidal seagrass (Zostera marina) meadow

Marine Geology, Journal Year: 2024, Volume and Issue: 476, P. 107385 - 107385

Published: Aug. 22, 2024

Language: Английский

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How Turbidity Mediates the Combined Effects of Nutrient Enrichment and Herbivory on Seagrass Ecosystems

Frontiers in Marine Science, Journal Year: 2022, Volume and Issue: 9

Published: Feb. 10, 2022

While nutrient enrichment and herbivory have been well recognized as the main driving factors of seagrass meadow fragmentation degradation, there is limited understanding how their relative importance shifts across large spatial scales where environmental such turbidity can vary. In this study, a field control experiment was conducted in two Zostera japonica meadows distributed on banks Yellow River Estuary with different turbidity, to investigate combined effects macroalgae. Our results showed that had mediating force shifting played vital role maintaining balance between primary producers turbid environment, tended offset herbivory-induced biomass loss by promoting growth less system. Additionally, potential mechanisms might regulate responses seagrasses macroalgae under are proposed. On one hand, mediate feeding preference herbivores. other favors opportunistic over systems. study emphasizes ecosystems, provides references for protection restoration multiple stressors, prompts further studies feedback sediment dynamics context ecogeomorphology.

Language: Английский

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Sediment Exchange Between the Created Saltmarshes of Living Shorelines and Adjacent Submersed Aquatic Vegetation in the Chesapeake Bay

Frontiers in Marine Science, Journal Year: 2021, Volume and Issue: 8

Published: Oct. 1, 2021

Rising sea levels and the increased frequency of extreme events put coastal communities at serious risk. In response, shoreline armoring for stabilization has been widespread. However, this solution does not take ecological aspects coasts into account. The “living shoreline” technique includes ecology by incorporating natural habitat features, such as saltmarshes, stabilization. impacts living shorelines on adjacent benthic communities, submersed aquatic vegetation (SAV), are yet clear. particular, while both marshes SAV trap sediment necessary their resilience to environmental change, synergies between well-understood. To help quantify protective (shoreline stabilization) shorelines, we presented modeling results using Delft3D-SWAN system transport created saltmarshes in a subestuary Chesapeake Bay. We used double numerical approach primarily validate deposition measurements made field further balance two an idealized model. This model same domain with different wave heights, periods, basin slopes presence rip-rap, which is often together marsh plantings look influences artificial structures exchange plant communities. study indicated lower shear stress, erosion rates, higher rates within bed compared scenario only, helped stabilize bottom sediments making positive case moderate climate (deposition vegetations than loss). rip-rap resulted balance, especially events, where was magnified. Overall, concluded that helps level shoreline, works better conditions, demonstrating how right combination built solutions can work well terms protection.

Language: Английский

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