การมีส่วนร่วมของประชาชนในการป้องกันการกัดเซาะชายฝั่ง ทะเลบริเวณชุมชนชายฝัง่ ทะเล ตำ บลสองคลอง อำเภอบางปะกง จังหวัดฉะเชิงเทรา (People Participation in the Coastal Erosion Protection Around the Coastal Communities of Song Klong, Bang Pakong, Chachoengsao Province)

2015 ◽  
Author(s):  
Somjai Juanan ◽  
Kingkanok Chawalitthamrong
Keyword(s):  
Coastal Erosion ◽  
Coastal Communities ◽  
People Participation ◽  
Erosion Protection

scholarly journals Feasibility Study of Native Ureolytic Bacteria for Biocementation Towards Coastal Erosion Protection by MICP Method

2019 ◽  
Vol 9 (20) ◽  
pp. 4462 ◽  
Author(s):  
Md Imran ◽  
Shuya Kimura ◽  
Kazunori Nakashima ◽  
Niki Evelpidou ◽  
Satoru Kawasaki
Keyword(s):  
Coastal Erosion ◽  
Urease Activity ◽  
Ground Improvement ◽  
Soil Improvement ◽  
Engineering Properties ◽  
Culture Solution ◽  
Precipitation Trend ◽  
Mediterranean Countries ◽  
Erosion Protection ◽  
Ureolytic Bacteria

In recent years, traditional material for coastal erosion protection has become very expensive and not sustainable and eco-friendly for the long term. As an alternative countermeasure, this study focused on a sustainable biological ground improvement technique that can be utilized as an option for improving the mechanical and geotechnical engineering properties of soil by the microbially induced carbonate precipitation (MICP) technique considering native ureolytic bacteria. To protect coastal erosion, an innovative and sustainable strategy was proposed in this study by means of combing geotube and the MICP method. For a successful sand solidification, the urease activity, environmental factors, urease distribution, and calcite precipitation trend, among others, have been investigated using the isolated native strains. Our results revealed that urease activity of the identified strains denoted as G1 (Micrococcus sp.), G2 (Pseudoalteromonas sp.), and G3 (Virgibacillus sp.) relied on environment-specific parameters and, additionally, urease was not discharged in the culture solution but would discharge in and/or on the bacterial cell, and the fluid of the cells showed urease activity. Moreover, we successfully obtained solidified sand bearing UCS (Unconfined Compressive Strength) up to 1.8 MPa. We also proposed a novel sustainable approach for field implementation in a combination of geotube and MICP for coastal erosion protection that is cheaper, energy-saving, eco-friendly, and sustainable for Mediterranean countries, as well as for bio-mediated soil improvement.

scholarly journals An Integrated Approach to Analyze Sedimentary Stock and Coastal Erosion in Vulnerable Areas: Resilience Assessment of San Vicenzo’s Coast (Italy)

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 805
Author(s):  
Francesco Bianco ◽  
Paolo Conti ◽  
Salvador García-Ayllon ◽  
Enzo Pranzini
Keyword(s):  
Coastal Erosion ◽  
Integrated Approach ◽  
Coastal Communities ◽  
Sea State ◽  
Erosion Risk ◽  
Geomorphic Features ◽  
Active Processes ◽  
Resilience Assessment ◽  
Morphological Patterns

The assessment of coastal erosion risk is a major challenge, since environmental and geomorphic features, together with sea state parameters, can seriously change the configuration of coastal areas. In addition, the anthropic actions of the coastal communities may also drastically modify the configuration of the coast in vulnerable areas. In this study, a linkage between regional mapping guidelines and national geological cartography procedures is presented as a meaningful tool in the geomorphic trends analysis for the integrated mapping of the main morphological patterns of San Vincenzo’s coastal area, in the region of Tuscany (Italy). Comparing and joining different procedures—which have different scales and topics—requires adapting the fields and the information provided in maps and databases. In this case study, a GIS morpho-sedimentological approach is developed. This GIS approach enables us to cover several issues simultaneously, such as the representation of coastal active processes, the adaptation of regional and national cartography to coastal erosion assessment, and lastly the calculation of the sedimentary stock analysis, since it represents the first attribute of coasts to be preserved in a resilience-oriented integrated assessment.

scholarly journals IMMERSIVE EXPERIENCES IN CLIMATE ADAPTATION

2020 ◽  
pp. 10
Author(s):  
Juliano Calil
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Coastal Erosion ◽  
Climate Adaptation ◽  
3D Models ◽  
Coastal Communities ◽  
Long Beach ◽  
Coastal Risks ◽  
Impacts Of Climate Change

As coastal communities worldwide contend with sea-level rise, coastal erosion, and other impacts of climate change, a critical piece of the puzzle has become educating stakeholders in highly creative, insightful, and practical ways. In this study, we will highlight the main findings from the use of immersive and interactive Virtual Reality (VR) experiences in climate adaptation. These tools are helping coastal communities better understand potential impacts as well as explore near- and long-term solutions to reduce coastal risks. We will describe the challenges and steps taken to develop these applications at four coastal locations in the U.S. (Turner Station, MD, and Santa Cruz, Long Beach, and Moss Landing in CA); from identifying key objectives of each experience, the critical messages, and target audiences, to flying drones over coastal areas and working with photogrammetry to create hyper-realistic 3D models that are inserted in the VR experience. These immersive and interactive experiences support planning, management and monitoring activities related to sea-level rise, storms, coastal erosion, king tides, and more. These tools are being developed by a multidisciplinary team with a range of expertise including climate and coastal scientists, city planners, communications experts, filmmakers, 3D animators, and VR developers.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/aDIkbn_FO1c

Relocation as an Adaptation to Sea-Level Rise: Valuable Lessons from the Narikoso Village Relocation Project in Fiji

2019 ◽  
Vol 3 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Amanda Bertana
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Coastal Erosion ◽  
Prime Minister ◽  
Adaptation Strategy ◽  
Coastal Communities ◽  
Financial Resources ◽  
Sea Levels ◽  
The Village

Relocation as an adaptation strategy to coastal degradation remains on the fringes of climate change discourse. Yet, as sea levels are projected to rise, relocating is an inevitable response for vulnerable coastal communities worldwide. In fact, some Fijian villages are facing such severe coastal erosion that they have already begun the process of shifting to higher ground, and many more villages throughout the islands have been slated for relocation. This case study is based on the planned relocation efforts of Narikoso village on Ono Island in Kadavu, Fiji. In Narikoso, regional NGOs, INGOs, and local and national government are working with the community to relocate the village inland. The process of moving the community began in 2012 when Prime Minister Bainimarama sent the Fiji military to Ono Island to clear land for the new village. It came to an abrupt stop due to a lack of funding and ecological degradation caused by the preparation for the new village site. Since the relocation process began, a myriad of issues have arisen ranging from concerns regarding community engagement, availability of financial resources, and resistance to moving inland.

Innovative Approach for Addressing Coastal Erosion Protection Using Microbial Induced Carbonate Precipitation

2020 ◽  
Author(s):  
Md Al Imran ◽  
Kazunori Nakashima ◽  
Niki Evelpidou ◽  
Satoru Kawasaki
Keyword(s):  
Coastal Erosion ◽  
Global Climate ◽  
Bacterial Species ◽  
Environmental Parameters ◽  
Soil Improvement ◽  
Sediment Supply ◽  
Sand Sample ◽  
Carbonate Precipitation ◽  
Culture Duration ◽  
Erosion Protection

<p>Considering the global climate change and the ensuing sea level rise, the subsequent acceleration of coastal erosion is evident. Phenomena of coastal erosion, coastal flooding and shoreline retreat are expected to show a significant increase in frequency and intensity, in global level. The effects of coastal erosion are worsened by storms, and the reduction of sediment supply associated with global warming and anthropogenic modification of rivers and coastlines. As a countermeasure to coastal erosion, this work focuses on the development of coastal artificial in-situ rocks. We developed a new method that encompasses microbes and the related mechanism is called “Microbial Induced Carbonate Precipitation” (MICP). We successfully isolated three microorganisms, Micrococcus sp., Pseudoalteromonas sp., and Virgibacillus sp., from the selected area, and investigated their effectiveness in order to make a solidified sand sample. The precipitated bounding material has also been confirmed as calcite by XRD and XRF analysis. We successfully demonstrated that all of these bacterial species are very sensitive with certain environmental parameters, such as temperature, pH, culture type, culture duration, etc. In laboratory scale, we successfully obtained solidified sand by syringe (d = 2.3 cm, h = 7.1 cm) solidification method bearing UCS (Unconfined Compressive Strength) up to 1.8 MPa using 0.5 M CaCl<sub>2</sub> and urea as cementation solution at 30°C. In addition, we propose a new sustainable approach for field implementation of this method through a combination of geotube and MICP mechanism, which will contribute to coastal erosion protection. The proposed approach is more economic, energy-saving, eco-friendly, and sustainable for bio-mediated soil improvement.</p>

scholarly journals Coastal Structures as Beach Erosion Control and Sea Level Rise Adaptation in Malaysia: A Review

Water ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 1741
Author(s):  
Ahmad Hadi Mohamed Rashidi ◽  
Mohamad Hidayat Jamal ◽  
Mohamad Zaki Hassan ◽  
Siti Salihah Mohd Sendek ◽  
Syazana Lyana Mohd Sopie ◽  
...  
Keyword(s):  
Sea Level Rise ◽  
Sea Level ◽  
Coastal Erosion ◽  
Management Strategies ◽  
Erosion Control ◽  
Beach Erosion ◽  
Coastal Protection ◽  
Sea Level Rise Adaptation ◽  
Erosion Protection ◽  
And Sea Level

The shoreline of Malaysia is exposed to threats of coastal erosion and a rise of sea level. The National Coastal Erosion Study, 2015 reported that 15% of an 8840 km shoreline is currently eroding, where one-third of those falls under the critical and significant categories that require structural protection. The Study of Sea Level Rise in Malaysia, 2017 presented a sea-level increase of 0.67–0.74 mm on average yearly. This study reviewed selected coastal protection structures along the shoreline of Malaysia as an erosion control and sea-level rise adaptation based on coastal management strategies. Hard structures such as rock revetment and breakwater are commonly used as erosion protection systems in the “hold the line” strategy. Increased platform level of seawalls and earth bunds, considered as an “adaptation” approach, are effective in erosion protection and are adaptive to sea-level rise. Mangrove replanting is suitable as a “limited intervention” approach in minimizing the long-term impact of both threats. However, offshore breakwater, groyne, and geotextile tubes are solely for protection purposes and are not as effective for sea-level rise adaptation. As the sea level is continuously increasing, their function as coastal protection will also become less effective. In summary, this comprehensive review on coastal protection in Malaysia will benefit the related agencies on the future assessment.

scholarly journals Science in Service of our Communities

Oceanography ◽  
2021 ◽  
Vol 34 (4) ◽  
Author(s):  
Mona Behl ◽  
Keyword(s):  
Oral History ◽  
Coastal Erosion ◽  
Saltwater Intrusion ◽  
West African ◽  
Coastal Communities ◽  
Property Taxes ◽  
Sea Levels ◽  
Rising Sea Levels ◽  
Research And Education ◽  
Coastal Livelihoods

In the Golden Isles of Georgia, the Gullah art of braiding sweetgrass into baskets can be traced back over 400 years to its West African roots. This skill is passed on from generation to generation, preserving the oral history, sovereignty, and culture of the Gullah people. Local and indigenous coastal communities, like the Gullah-Geechee, have a deep connection with their natural environment as they depend on forests, fisheries, and wildlife resources for their livelihood and culture. These frontline communities are also facing a complex web of challenges that include rising sea levels, coastal erosion, saltwater intrusion, encroaching development and increasing property taxes, and loss of fisheries and other coastal livelihoods. As communities develop strategies to address these complex challenges, they need access to place-based research and education that is unique to their people, culture, and ecology.

scholarly journals Operational strategy to monitor coastal erosion in tropical areas

2017 ◽  
Vol 8 (3) ◽  
pp. 135-143 ◽  
Author(s):  
Basanta Kumar Jena ◽  
D Sathish Kumar ◽  
Karunakar Kintada
Keyword(s):  
Coastal Erosion ◽  
Tamil Nadu ◽  
Surf Zone ◽  
Numerical Models ◽  
Coastal Communities ◽  
Operational Strategies ◽  
Spatial And Temporal Scales ◽  
Optimal Monitoring ◽  
Set Up ◽  
Generic Set

Assessment of coastal erosion is of high significance given the fact that the coastal communities are densely populated areas and have an influence on the food cycle directly and indirectly. Continuous monitoring is essential part of the work for any intervention to be carried out owing to the seasonal and inter-annual variability. The article discusses the measurement criteria and stages in an operational plan for a monitoring exercise, preparation and execution. Erosion can be due to a variety of natural and anthropogenic causes in general. The topic draws attention of both researchers and coastal communities equally. This article explains the need for operational strategies for an optimal monitoring of coastal erosion. Demonstration of such methodology was presented with a case study at a micro-tidal sandy beach located in Tamil Nadu. A generic set up for a plan boundary to measure met-ocean parameters over a time and spatial extent covering the beach and near-shore sediment regime, shore face and surf zone hydrodynamics is discussed. For a detailed understanding, numerical models are set up against the measurements to have a feel of the spatial variability. Validation was taken up extensively and the predictions were used to enhance the measurements in spatial and temporal scales, advantages with such setup.

scholarly journals Coastal erosion management in Accra: Combining local knowledge and empirical research

2016 ◽  
Vol 8 (1) ◽  
Author(s):  
Kwasi Appeaning Addo ◽  
Irene Appeaning Addo
Keyword(s):  
Local Knowledge ◽  
Coastal Erosion ◽  
Scientific Data ◽  
Rate Of Change ◽  
Coastal Communities ◽  
Aerial Photographs ◽  
Topographic Map ◽  
Structured Interviews ◽  
National Debate ◽  
End Point Rate

Coastal erosion along the Accra coast has become a chronic phenomenon that threatens both life and property. The issue has assumed a centre stage of national debate in recent times because of its impact on the coastal communities. Lack of reliable geospatial data hinders effective scientific investigations into the changing trends in the shoreline position. However, knowledge about coastal erosion, by the local people, and how far the shoreline has migrated inland over time is high in the coastal communities in Accra. This opens a new chapter in coastal erosion research to include local knowledge of the local settlers in developing sustainable coastal management. This article adopted a scientific approach to estimate rate of erosion and tested the results against perceived erosion trend by the local settlers. The study used a 1974 digital topographic map and 1996 aerial photographs. The end point rate statistical method in DSAS was used to compute the rates of change. The short-term rate of change for the 22-year period under study was estimated as -0.91 m/annum ± 0.49 m/annum. It was revealed that about 79% of the shoreline is eroding, while the remaining 21% is either stabilised or accreting. It emerged, from semi-structured interviews with inhabitants in the Accra coastal communities, that an average of about 30 m of coastal lands are perceived to have been lost to erosion for a period of about 20 years. This translates to a historic rate of change of about 1.5 m/year, which corroborates the results of the scientific study. Again this study has established that the local knowledge of the inhabitants, about coastal erosion, can serve as reliable information under scarcity of scientific data for coastal erosion analyses in developing countries.

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