"A Self-Inflicted Wound": The Impact of Coastal Erosion and Restoration on Louisiana's Oyster Industry

2018 ◽  
Vol 24 (1) ◽  
pp. 27-45 ◽  
Author(s):  
Rebecca Bond Costa
Keyword(s):  
Coastal Erosion ◽  
The Impact ◽  
Oyster Industry

scholarly journals Preliminary assessment of coastal erosion and local community adaptation in Sayung coastal area, central java – Indonesia

2012 ◽  
Vol 31 (3) ◽  
pp. 47-55
Author(s):  
Muh Aris Marfai
Keyword(s):  
Coastal Area ◽  
Coastal Erosion ◽  
Local Community ◽  
Negative Impact ◽  
Dynamic Environment ◽  
Ground Level ◽  
Adaptation Strategies ◽  
Human Environment ◽  
Central Java ◽  
The Impact

Abstract . Dynamic environment in coastal area, especially due to coastal erosion process, has negative impact on human environment. Sayung coastal area, located in Central Java-Indonesia, has experienced severe impact of coastal erosion. As the result of the coastal erosion, hundreds of settlement located in coastal area has been destructed. Moreover, fishponds as the land use dominated in the coastal area also has been severely destroyed. Besides the coastal erosion, increasing of inundated area due to sea level rise also threaten the local community. Although devastating impact suffering the coastal area, the people of Tambaksari, as the part of Sayung area, decided to live and adapt with the coastal erosion. This paper aims to identify the coastal erosion and understand adaptation strategies held by the local community related to reduce the impact of the coastal erosion. Based on this research, various adaptation strategies has been identified, namely (1) Planting mangrove alongside the shoreline, (2) elevating the ground level, (3) building staged house, (4) utilizing deep well for freshwater supply, (5), maintaining social interaction with mainland community, (6) Collecting fish from the mangrove as the food, and (7) changing work into the tourism sector.

scholarly journals Coastal vulnerability of a pinned, soft-cliff coastline, II: assessing the influence of sea walls on future morphology

2014 ◽  
Vol 2 (1) ◽  
pp. 233-242 ◽  
Author(s):  
A. Barkwith ◽  
M. D. Hurst ◽  
C. W. Thomas ◽  
M. A. Ellis ◽  
P. L. Limber ◽  
...  
Keyword(s):  
Coastal Erosion ◽  
Morphological Changes ◽  
Numerical Models ◽  
Field Research ◽  
Wave Climate ◽  
Sediment Flux ◽  
Climate Data ◽  
Coastal Morphology ◽  
Coastal Evolution ◽  
The Impact

Abstract. Coastal defences have long been employed to halt or slow coastal erosion, and their impact on local sediment flux and ecology has been studied in detail through field research and numerical simulation. The non-local impact of a modified sediment flux regime on mesoscale erosion and accretion has received less attention. Morphological changes at this scale due to defending structures can be difficult to quantify or identify with field data. Engineering-scale numerical models, often applied to assess the design of modern defences on local coastal erosion, tend not to cover large stretches of coast and are rarely applied to assess the impact of older structures. We extend previous work to explore the influences of sea walls on the evolution and morphological sensitivity of a pinned, soft-cliff, sandy coastline under a changing wave climate. The Holderness coast of East Yorkshire, UK, is used as a case study to explore model scenarios where the coast is both defended with major sea walls and allowed to evolve naturally were there are no sea defences. Using a mesoscale numerical coastal evolution model, observed wave-climate data are perturbed linearly to assess the sensitivity of the coastal morphology to changing wave climate for both the defended and undefended scenarios. Comparative analysis of the simulated output suggests that sea walls in the south of the region have a greater impact on sediment flux due to increased sediment availability along this part of the coast. Multiple defence structures, including those separated by several kilometres, were found to interact with each other, producing complex changes in coastal morphology under a changing wave climate. Although spatially and temporally heterogeneous, sea walls generally slowed coastal recession and accumulated sediment on their up-drift side.

scholarly journals THAY ĐỔI ĐƯỜNG BỜ BIỂN TRÀ VINH TỪ NĂM 1989 – 2014

2019 ◽  
Vol 19 (1) ◽  
pp. 31-40
Author(s):  
Nguyen Thi Mong Lan ◽  
Nguyen Hoang Nguyen ◽  
Huynh Mai Ly ◽  
Le Huu Tuan ◽  
Vo Thi Hong Quyen
Keyword(s):  
Coastal Erosion ◽  
Average Rate ◽  
Satellite Image ◽  
Field Measurements ◽  
Natural Factors ◽  
Deposition Area ◽  
Survey Results ◽  
Satellite Image Analysis ◽  
The Impact ◽  
Mangrove Planting

The coastline of Tra Vinh, about 65 km long from the mouth of Cung Hau to Dinh An, is composed of loose sediment, which is easily affected by natural factors and human activities. Based on satellite image analysis combined with survey and field measurements, the changes in coastline between 1966 and 2014 were identified. The results show that in this period the coastline had an average deposition rate of about 5–10 m/year. Dong Hai was the strongest deposition area with maximum rate of 40 m/year, average 28–30 m/year. The eroded coastline alternated with an average erosion rate of about 5–8 m/year. From 1990 up to now, many human constructions have been carried out along the coast of Tra Vinh, contributing to the impact of changing the shoreline. In the area of My Long Nam, Dong Hai and Long Vinh, the mangrove planting project was performed which helped to create continuous accretion of coastline with average rate of 17–33 m/year. In the period of 2009–2014, sea dykes in Hiep Thanh commune and Con Truong, Truong Long Hoa commune were built to prevent coastal erosion. During 2009–2014, Hiep Thanh coast and Truong Long Hoa coast were eroded at an average rate of 8–20 m/year and 6–10 m/year, respectively. After appearance of the dykes, the survey results show that in the 2014–2015 period, the shoreline of Hiep Thanh and Con Trung which has sea dykes was no longer eroded, but the adjacent coastline was more eroded at an average rate of 14–38 m/year. In Dan Thanh commune, where Duyen Hai electric center and Quan Chanh Bo canal were constructed, from 2009 to 2014, the coastline was eroded with the average rate of 12–24 m/year. In 2014–2015 period, coastal erosion was stronger at an average rate of 36–45 m/year.

The Open-Air Laboratory Italy

2021 ◽  
Author(s):  
Paolo Ruggieri ◽  
Keyword(s):  
Coastal Erosion ◽  
River Mouth ◽  
Storm Surges ◽  
Adaptation To Climate Change ◽  
Key Stakeholders ◽  
Modelling Strategies ◽  
Novel Concept ◽  
The Impact ◽  
Open Air Laboratories ◽  
The Eu

<p>The Open-Air Laboratory is a novel concept developed by the EU-funded Operandum project (OPEn-air laboRAtories for Nature baseD solutions to Manage Environmental risk) to co-design, implement and assess the effectiveness of Nature-Based Solutions (NBSs). </p><p>In this work we present the Open-Air Laboratory Italy (OAL-Italy) and discuss the application of the OAL as a framework for the development of innovative NBSs to mitigate the impact of hydro-meteorological hazards in present and future climate.  By combining consolidated practices in an original multidisciplinary frame, the OAL-Italy deploys novel modelling strategies, laboratory measurements and targeted monitoring open-field campaigns. In three operational sites, the NBSs are implemented via a co-design, co-development  and co-deployment approach based on a thorough interaction with key stakeholders. By describing the structure and the approach of the OAL we illustrate salient features of the methodology developed in Operandum that are instrumental for the replicability and the upscaling of the NBSs. </p><p>Presented results address the use of the NBSs to mitigate a range of hydrometeorological hazards such as coastal erosion, flooding, storm surge and salt wedge intrusion. Innovative NBSs tested and developed by the OAL include: deep-rooted plants installed on a river embankment to prevent levee failures, special plants that can live in high salt concentration and remove salt from the river mouth water, an artificial dune and marine seagrass to mitigate the impact of storm surges and coastal erosion. We argue that the OAL constitutes an unprecedented holistic effort towards sustainable land management, adaptation to climate change and the acceptance of Nature-Based Solutions. </p>

The Impact of Anthropogenic Activities on Coastal Erosion

2001 ◽  
Author(s):  
Orville T. Magoon ◽  
Billy L. Edge ◽  
Katherine E. Stone
Keyword(s):  
Coastal Erosion ◽  
Anthropogenic Activities ◽  
The Impact

scholarly journals Assessing the influence of sea walls on the coastal vulnerability of a pinned, soft-cliff, sandy coastline

2013 ◽  
Vol 1 (1) ◽  
pp. 1127-1149 ◽  
Author(s):  
A. Barkwith ◽  
M. D. Hurst ◽  
C. W. Thomas ◽  
M. A. Ellis ◽  
P. W. Limber ◽  
...  
Keyword(s):  
Coastal Erosion ◽  
Morphological Changes ◽  
Numerical Models ◽  
Field Studies ◽  
Wave Climate ◽  
Sediment Flux ◽  
Climate Data ◽  
Coastal Morphology ◽  
Coastal Evolution ◽  
The Impact

Abstract. Coastal defences have long been employed to halt or slow coastal erosion. Their impact on local sediment flux and ecology has been studied in detail through field studies and numerical simulations. The non-local impact of a modified sediment flux regime on mesoscale erosion and accretion has received less attention. Morphological changes at this scale due to defended structures can be difficult to quantify or identify with field data. Engineering scale numerical models, often applied to assess the design of modern defences on local coastal erosion, tend not to cover large stretches of coast and are rarely applied to assess the impact of older structures. We extend previous work to explore the influences of sea walls on the evolution and morphological sensitivity of a pinned, soft-cliff, sandy coastline under a changing wave climate. The Holderness coast of East Yorkshire, UK, is used as a case study, represented both as a defended example with major sea walls included and a natural example where no sea defences exist. Using a mesoscale numerical coastal evolution model, stochastic wave climate data are perturbed gradually to assess the sensitivity of the coastal morphology to changing wave climate for both the defended and natural scenarios. Comparative analysis of the simulated output suggests that sea walls in the south of the region have a greater impact on sediment flux due to the increased sediment availability along this part of the coast. Multiple defended structures, including those separated by several kilometres, were found to interact with each other, producing a complex imprint on coastal morphology under a changing wave climate. Although spatially and temporally heterogeneous, sea walls generally slowed coastal recession and accumulated sediment on their up-drift side.

scholarly journals Projected increase of Arctic coastal erosion and its sensitivity to warming in the 21st Century

2021 ◽  
Author(s):  
David Nielsen ◽  
Patrick Pieper ◽  
Armineh Barkhordarian ◽  
Paul Overduin ◽  
Tatiana Ilyina ◽  
...  
Keyword(s):  
Organic Carbon ◽  
Coastal Erosion ◽  
Erosion Rate ◽  
Carbon Sink ◽  
The Arctic ◽  
Coastal Conservation ◽  
Organic Carbon Flux ◽  
High Emission ◽  
Future Work ◽  
The Impact

Abstract Arctic coastal erosion damages infrastructure, threatens coastal communities, and releases organic carbon from permafrost. However, the magnitude, timing and sensitivity of coastal erosion increase to global warming remain unknown. Here, we project the Arctic-mean erosion rate to roughly double by 2100 and very likely exceed its historical range of variability by mid-21st century. The sensitivity of erosion to warming also doubles, reaching 0.4-0.5 m year-1 oC-1 and 2.3-2.8 TgC year-1 oC-1 by the end of the century under moderate and high-emission scenarios. Our first 21st-century pan-Arctic coastal erosion rate projections should inform policy makers on coastal conservation and socioeconomic planning. Our organic carbon flux projections also lay out the path for future work to investigate the impact of Arctic coastal erosion on the changing Arctic Ocean, on its role as a global carbon sink, and on the permafrost-carbon feedback.

scholarly journals The Analysis of Coastal Erosion and Erosion Impact Assessment in the East Coast

2021 ◽  
Vol 33 (6) ◽  
pp. 246-256
Author(s):  
Seon Jung Park ◽  
Heui Jung Seo ◽  
Seung Min Park ◽  
Seol Hwa Park ◽  
Ike Jang Ahn ◽  
...  
Keyword(s):  
Impact Assessment ◽  
Coastal Erosion ◽  
East Coast ◽  
Satellite Image ◽  
Road Construction ◽  
Coastal Development ◽  
Satellite Image Analysis ◽  
Port Structures ◽  
The Impact

Various development projects occurring on the coast cause an imbalance of surface sediments, causing coastal disasters or irreversible coastal erosion. Coastal erosion caused by the influence of various port structures built through coastal development can be directly identified by evaluating changes in the sediment budget, long-shore sediment, and cross-shore sediment. In other words, it will be possible to evaluate the causality between coastal development and coastal erosion by classifying regions due to single cause and regions due to multiple causes according to the changes in the sediment classified into the three types mentioned above. In this study, the cause of long-term and continuous erosion was analyzed based on the analysis results of the coastal development history and the Coastal Erosion Monitoring targeting the coast of Gangwon-do and Gyeongsangbuk-do on the east coast. In addition, in order to evaluate the degree of erosion caused by the construction of artificial coastal structures, the concept of erosion impact assessment was established, three methods were proposed for the impact assessment. The erosion impact of Hajeo port was assessed using the results of satellite image analysis presented in the Coastal Erosion Monitoring Report, it was assessed that the development of Hajeo port had an impact of 93.4% on erosion, and that of the coastal road construction had an impact of 6.6%.

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