scholarly journals MONITORING OF ENVIRONMENTAL IMPACTS IN WORLDWIDE BEACH NOURISHMENT PRACTICE

2018 ◽  
pp. 78
Author(s):  
Franziska Staudt ◽  
Bjoern Deutschmann ◽  
Caroline Ganal ◽  
Rik Gijsman ◽  
H. Christian Hass ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Coastal Zone Management ◽  
Ecosystem Approach ◽  
Coastal Protection ◽  
Sea Levels ◽  
Zone Management ◽  
Maritime Traffic ◽  
Rising Sea Levels ◽  
The Eu

The growing pressure on the coastal ecosystem, e.g. through fisheries, tourism or maritime traffic demands the careful balancing of activities and developments in the coastal zone. Strategies and planning tools like Integrated Coastal Zone Management (UNEP/MAP/PAP, 2008) or the ecosystem approach (which is planned to be implemented in the EU through the Marine Strategy Framework Directive, European Commission, 2008) aim at a holistic, environmentally friendly and sustainable development of the world’s coastlines. Especially in view of rising sea levels, coastal protection becomes crucial for many densely populated coastlines. For the past few decades beach nourishments have been carried out in many coastal regions as “environmentally friendly” alternative to hard coastal protection structures, such as groins, revetments or breakwaters (Hamm et al, 2002). However, the extraction, transport and deposition of sediment can have (long-term) impacts on the environment, which are often not completely understood. Subsequently, these impacts cannot be fully taken into account in national and local nourishment practice, leading to an insufficient implementation of the ecosystem approach.

scholarly journals Assessment of shoreline positional uncertainty using remote sensing and GIS techniques: A case study from the east coast of India

2021 ◽  
Vol 71 (3) ◽  
pp. 249-263
Author(s):  
Kongeswaran Thangaraj ◽  
Sivakumar Karthikeyan
Keyword(s):  
Linear Regression ◽  
Coastal Zone ◽  
East Coast ◽  
Coastal Zone Management ◽  
Storm Surges ◽  
Shoreline Change ◽  
Coastal Protection ◽  
East Coast Of India ◽  
Zone Management ◽  
2004 Tsunami

The focus of this research was to assess the shoreline changes by comparing the satellite data from 1980 to 2020. The study area falls in the region between Kodiakarai and Nagapattinam of the east coast of India, which has frequently been distressed by storm surges and cyclones in the Bay of Bengal. The Digital Shoreline Analysis System (DSAS) detects and measures the erosional and accretional shoreline positions through the statistics of the Shoreline Change Envelope, Net Shoreline Movement, End Point Rate, Linear Regression Rate, and Weighted Linear Regression. The results show that the shoreline from Kodiakkarai to Nagapattinam suffered severe erosion of 17.7% in total with an average annual erosion rate of 3.4 m/year from 1980 to 2020 and the rate of erosion ranged between 0.1 m/year to 19.8 m/year. About 90.5% of the total shoreline was faced high erosion during the period between 2000 and 2010. The maximum erosion was about 1061 m from 2000 to 2010, the maximum accretion was found to be 1002 m in transects at Kodiakkarai during 2010 to 2020. After the effect of 2004 tsunami, the corresponding changes in littoral currents caused the drastic erosion and accretion in this shoreline. The DSAS prediction model shows that 19.3% of the current shoreline will erode in 2030. The maximum predicted erosion is 406 m at Kodiakkarai and the maximum predicted accretion is 148 m at Nagapattinam region. The coastal zone from Kodiakkarai to Nagapattinam needs special attention to prevent the erosion and it is recommended to build suitable coastal protection structures along the coast for sustainable development and to execute the coastal zone management for this region.

Our Coastal Futures: pathways to sustainable development

2020 ◽  
Author(s):  
Robert Weiss ◽  
Valerie Cummins ◽  
Heath Kelsey ◽  
Sebastian Ferse ◽  
Anja Scheffers ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Technology Policy ◽  
Coastal Zone Management ◽  
World Ocean ◽  
Assessment Process ◽  
Environmental Assessments ◽  
Sea Levels ◽  
Zone Management ◽  
Global Environmental ◽  
Over Exploitation

<section class="push--ends"> <div class="formatted_content"> <div>The world’s sustainability opportunities and national security challenges converge in the coastal zone. Hundreds of millions of people face increasing pressure from population growth, over exploitation of natural resources, and escalating disaster-risk, as the climate changes and sea levels rise. Global Environmental Assessments have been a tool for international policy makers, and a particular favorite of UN bodies and can add value to national efforts. The first World Ocean Assessment concluded that without an integrated, coordinated, proactive, cross-sectoral and science-based approach to coastal and marine management, the resilience of coastal and marine ecosystems, and their ability to provide vital services, will continue to be reduced. The second World Ocean Assessment is currently under development and will build on the baselines established in the first assessment, by identifying key trends and relevance to the SDGs. However, global assessment processes, may be curtailed by bureaucracy and diplomatic legitimacy, whilst struggling to engage relevant stakeholders and institutions. As a result, there is a need to complement these important top-down, global environmental assessments, with more agile assessment processes, as well as facilitating bottom-up capacity building with stakeholders involved in coastal zone management. This requirement is articulated in the text of the “Our Coastal Futures Strategy”, launched in 2018 by Future Earth Coasts (FEC). We, the FEC program, observe that the assessment process is often not as inclusive as it could be, for example, by separating sectors, such as science and technology, policy, and public engagement throughout the assessment, with inter-sector connections usually made at a later stage in the process. Therefore, we stress the importance of co-designed synthesis that can reach into new knowledge, including tacit knowledge of diverse stakeholders, from the outset. Our Rapid Ocean Assessment Methodology Workshop will address this important issue and achieve a better understanding of the complexities and non-linearities of coastal-zone processes and interactions; fundamental to informing meaningful assessments and identifying potential sustainability pathways.</div> </div> </section>

scholarly journals ANALISIS STAKEHOLDERS PADA PERIKANAN TANGKAP KERAPU, PRELIMINARY STUDY MENUJU IMPLEMENTASI ECOSYSTEM APPROACH FOR FISHERIES MANAGEMENT DI KEPULAUAN SPERMONDE KOTA MAKASSAR

2016 ◽  
Vol 9 (2) ◽  
pp. 233
Author(s):  
Irwan Muliawan ◽  
Achmad Fahrudin ◽  
Akhmad Fauzi ◽  
Mennofatria Boer
Keyword(s):  
Coastal Zone ◽  
Fisheries Management ◽  
Coastal Zone Management ◽  
Ecosystem Approach ◽  
Central Point ◽  
Ecological System ◽  
Integrated Coastal Zone Management ◽  
Zone Management ◽  
Preliminary Study

Keberhasilan dalam pengelolaan sumber daya perikanan sangat bergantung pada pelibatan stakeholders untuk ikut berperan dan bekerja aktif mengarah tujuan yang akan dicapai. Sejak tahun 2003 pemerintah Kota Makassar menerapkan sistem manajemen pesisir dan lautan terpadu (integrated coastal zone Management) pada pantai kota dengan berorientasi revitalisasi. Dan tahun 2009, Proyek Central Point of Indonesia di Makassar membangun berbagai fasilitas di sepanjang pantai dengan berorientasi pada reklamasi pantai. Hal tersebut berdampak pada rusaknya lingkungan dan menurunnya produktifitas sumberaya ikan kerapu. Selain program yang terlalu ekspansif ke arah pesisir dan laut, pelibatan stakeholder terkait sumber daya ikan kerapu pun tidak harmonis. Penelitian ini bertujuan untuk mengidentifikasi strategi dalam pengelolaan perikanan kerapu di kawasan spermonde kota pada pendekatan ekosistem dalam pengelolaan perikanan berdasarkan pendekatan ekosistem (EAFM). Pendekatan dilakukan dengan menggunakan analisis stakeholder dan analisis hubungan entitas socio-ecological system (SES). Hasil analisis stakeholder menunjukkan kelompok stakeholder primer adalah; kelompok kelayan kerapu, kelompok pemodal, kelompok nelayan lainnya, polisi perairan, dinas kelautan dan perikanan propinsi sulawesi selatan dan dinas kelautan dan perikanan kota makassar. Berdasarkan analisis stakeholder grid, kelompok stakeholder tersebut merupakan kelompok yang harus dilibatkan secara aktif dengan berdialog dua arah menuju implementasi EAFM di Kepulauan Spermonde Kota Makassar. Rekomendasi pengelolaan perikanan, dari identifikasi dengan menggunakan analisis hubungan entitas SES seperti: Perlunya upaya pendampingan. Perlunya mengembangan diversifikasi usaha. Penegakan hukum yang kuat dan konsisten. Perlunya kerjasama membenahi infrastruktur. Perlunya meningkatkan komunikasi terpadu antar entitas. Perlunya meningkatkan komunikasi interentitas penyedia infrastruktur.

scholarly journals Exploring the Ever-Changing Seashore Using Geoinformatics Technology

Earth ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 544-555
Author(s):  
Ibra Lebbe Mohamed Zahir ◽  
Buddhika Madurapperuma ◽  
Atham Lebbe Iyoob ◽  
Kafoor Nijamir
Keyword(s):  
Coastal Zone ◽  
Satellite Images ◽  
Coastal Zone Management ◽  
Ground Truth ◽  
Shoreline Change ◽  
Modern Technology ◽  
Google Earth ◽  
Coastal Protection ◽  
Threshold Method ◽  
Zone Management

Detecting coastal morphodynamics is a crucial task for monitoring shoreline changes and coastal zone management. However, modern technology viz., Geoinformatics paves the way for long-term monitoring and observation with precise output. Therefore, this study aimed to produce explicit shoreline change maps and analyze the historical changes of the coastline at the east coast of the Ampara District in Sri Lanka. The histogram threshold method is used to extract data from satellite images. The time-series satellite images, acquired from 1987 to 2017, toposheet, and Google Earth historical images were compared having adjusted with the ground-truth to find the seashore changes in the study area. The histogram threshold method is used on band 5 (mid-infrared) for separating land from water pixels which means that the water pixel values were classified to one (1) and land pixel values to zero (0). The extracted shoreline vectors were associated with each other to determine the dynamics of changing shoreline of the study area. The Digital Shoreline Analysis System (DSAS) was used to find shoreline movements for each period of time. As a result, it was observed by the cross-section analysis within 100 m shoreline—seaward range along the study area—in which severe erosion has occurred northward of the Oluvil Harbor and anomalous accretion southward of the harbor because of the breakwaters constructed in the port entrance which hinder the long shore sediment transport along the study area. This situation has resulted in many ramifications to the coastal zone of the study area in socio-economic and environmental aspects in which the coastal protection mechanisms have not been well implemented to curb such issues.

scholarly journals Studying and forecasting the evolution of the Day river coastal zone up to the year of 2070

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Duong Quoc Hung ◽  
Vu Hai Dang ◽  
Phan Dong Pha ◽  
Nguyen Thi Anh Nguyet ◽  
Ngo Bich Huong ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Global Climate ◽  
Natural Habitat ◽  
Coastal Zone Management ◽  
Actual State ◽  
Master Planning ◽  
Zone Management ◽  
River Bed ◽  
Oceanographic Data

The Day river coastal zone is the place of plentiful and eventful economical activities and the natural habitat of diverse endemic species that should be preserved and developed. According to the updated geological, remote-sensing and oceanographic data sources, this study figures out the actual state, evolutional history and forecasts the development of the Day river coastal zone up to the year 2070, which could be used to improve the effectiveness of the long-term spatial coastal zone management and master planning. Major conclusions are as follows: (i) The Day river coastline has been highly modified since the last 50 years, (ii) The shoreline seaward development tends to gradually decrease in recent years, and (iii) The river-bed continues to be shifted southwestwards in the context of global climate change and sea level rise.

Disintegrated coastal zone management (DICZM): an example from Auckland, New Zealand

2020 ◽  
Author(s):  
Martin Brook ◽  
Alex Palma ◽  
Rosemary Garill ◽  
Nick Richards ◽  
Jon Tunnicliffe
Keyword(s):  
New Zealand ◽  
Coastal Zone ◽  
Coastal Zone Management ◽  
Land Development ◽  
High Energy ◽  
Wave Climate ◽  
Engineering Properties ◽  
Coastal Protection ◽  
Zone Management ◽  
Auckland Region

<p>Typically, integrated coastal zone management (ICZM) uses the informed participation and cooperation of all stakeholders to assess the societal goals in a given coastal area. ICZM seeks, over the long term, to balance environmental, economic, social, cultural and recreational objectives, all within the limits set by natural dynamics. We outline coastal instability in the Auckland region of New Zealand, where the effects of natural coastal dynamics appear to have been underplayed, or even overlooked, during the residential land development process. Auckland is New Zealand’s largest city, with the Auckland region encompassing c. 3,300 km of coastline, with a highly variable wave climate and coastal geomorphology. The sparsely inhabited high energy west coast records significant wave heights of 2-3 m for much of the year. In contrast, the eastern bay coastlines are lee coasts, protected by offshore islands in the Hauraki Gulf and the Coromandel Peninsula. Nevertheless, significant coastal cliff instability does occur along these eastern coasts, which are heavily populated, with houses often constructed within 10 m of the cliff edge. Coastal instability in the Beachlands area in particular, is part-conditioned by engineering properties of the cliff materials, which include soft, Pleistocene sediments. In particular, shear surfaces develop along clay-rich tephra layers, which are of low-permeability, leading to increased porewater pressure, and cliff failure.  Despite the clear failure mechanisms, coastal protection works and routing of domestic stormwater over the cliffs has led to further coastal instability.</p>

Integrated Approach to Coastal Zone Management in Puerto Galera, Oriental Mindoro, Philippines

1984 ◽  
Vol 16 (3-4) ◽  
pp. 433-440
Author(s):  
O C A Iriberri
Keyword(s):  
Coastal Zone ◽  
Coastal Zone Management ◽  
Integrated Approach ◽  
Physical Parameters ◽  
Ecological Studies ◽  
Continuous Increase ◽  
Zone Management ◽  
Single Fragment ◽  
Human Attitude ◽  
And Migration

Coastal zone management requires an understanding of the complex milieu of interactions and activities taking place in an environmental system. Man is beginning to recognize that the old method of dealing with individual issues and problems as single fragment of a whole ecosystem is not enough. This paper tries to deal with the integrated manner in carrying out effectively the management of the coastal zone in Puerto Galera, Oriental Mindoro by the Man and the Biosphere Interagency Committee on Ecological Studies. To attain the objective of the project, the different agencies monitor, identify, observe, investigate various natural and physical parameters contributing to the ecological balance and study the rational use of the resources along the coastal zone. Result of the study showed that although such factors as land use practices of shifting cultivation (kaingin), human attitude towards forest and its resources, and continuous increase in population and migration of people were observed, such pressure on lands has not greatly affected the Puerto Galera coastal zone resources.

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