Diachronic evolution of the coastline of Bordj El Kiffane (Algiers, Algeria) in absence and presence of coastal protection structures

Proceedings e report - Eighth International Symposium “Monitoring of Mediterranean Coastal Areas. Problems and Measurement Techniques” ◽

10.36253/978-88-5518-147-1.42 ◽

2020 ◽

pp. 422-431

Author(s):

Ismahane KADRI ◽

Farid ATROUNE

Keyword(s):

Coastal Area ◽

Evolutionary Rates ◽

Coastal Protection ◽

Historical Evolution ◽

Protective Structures ◽

Protection Structures

The coastal area of Bordj El Kiffane has experienced an artificialisation of its shoreline since 1980. This caused a remarkable decline of the shoreline. To remedy this, the solution recommended was the combination of several protection methods. In order to determine the consequence of the protective structures, a study of the historical evolution of the coastline was performed with ArcGIS and DSAS. The results allowed determining its evolutionary rates and comparing the evolutions on different periods in absence and presence of the protection structures.

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Level of Coastal Protection Damage and Priority of Handling (Case Study of Alue Naga – Neuheun, Aceh Besar, Indonesia)

International Journal of Disaster Management ◽

10.24815/ijdm.v2i1.14138 ◽

2019 ◽

Vol 2 (1) ◽

pp. 27

Author(s):

Syahrul Mauluddin ◽

Ella Meilianda ◽

Syamsidik Syamsidik

Keyword(s):

Coastal Area ◽

Coastal Region ◽

Rate Of Change ◽

Coastal Protection ◽

Marine Biota ◽

Structure Damage ◽

Computational Calculations ◽

Public Work ◽

The Government ◽

Protective Structures

The massive tsunami of December 26, 2004 has had a huge impact on the life of the coastal region. The effects of the tsunami caused damage to occupation settlements, loss of waterside land and destruction of marine biota ecosystems. The coastal region of Aceh Province in Indonesia is the area that has the worst impact followed by the State of Malaysia, Thailand and as a coastal area of India. As a result of a large amount of coastal land experiencing a loss of land mass, erosion is very significant. As a step towards handling coastal areas from greater erosion prevention, the Government of Indonesia in 2005 adopted a policy of handling rehabilitation and reconstruction through the ANTERP (Aceh Nias Tsunami and Earthquake Response Program) program under the BRR (Rehabilitation and Reconstruction Agency) in collaboration with Ministry of Public Work. One of the steps to handling erosion is to protect the coast using the hard structure method such as the construction of a revetment and jetty made from rock armor. This study aims to assess the level of damage and priority of handling of coastal protective structures that have been built in 2009, 2016 and how changes in shoreline occur on the beach location of Alue Naga - Neuheun, which is a coastal area that was greatly affected by the tsunami. Assessments were carried out in three different coastal structures, namely CS-1 locations in the Alue Naga area, CS-2, Lambada Lhok coastal area and CS-3 Neuheun beach area. Guidelines for assessing structure damage and changes in shoreline in the study using the Ministry of Public Work Regulation No. 08/SE/M/2010. The rate of change in shoreline is obtained through computational calculations of the DSAS (Digital Shoreline Analysis System) program using the EPR (End Point Rate) method and NSM for change distance (Net Shoreline Movement).

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Analisis Efektivitas Bangunan Pelindung Pelabuhan Patimban dan Pantai Sekitar Melalui Tinjauan Hidro-Oseanografi

REKA GEOMATIKA ◽

10.26760/jrg.v2017i2.1769 ◽

2018 ◽

Vol 2017 (2) ◽

Author(s):

R. M. Rizkike Jade ◽

Ni Made Rai Ratih Cahya Perbani ◽

D. N. Handiani

Keyword(s):

Coastal Area ◽

River Estuary ◽

Coastal Protection ◽

Master Plan ◽

Technical Aspects ◽

Main Factors ◽

Port Construction ◽

Short Type ◽

Protection Structures

ABSTRAKPemerintah Indonesia akan membangun pelabuhan baru dengan hierarki Pelabuhan Utama sebagai penopang Pelabuhan Tanjung Priok yang direncanakan akan dibangun di Patimban, Kabupaten Subang. Pembangunan pelabuhan membutuhkan kajian aspek teknis, salah satu di antaranya adalah bangunan pelindung pelabuhan. Penelitian ini bertujuan melakukan tinjauan hidro-oseanografi yang terdiri atas analisis tinggi gelombang, pelayaran, dan sedimentasi di area rencana pembangunan Pelabuhan Patimban sebagai analisis efektivitas bangunan pelindung dermaga Pelabuhan Patimban dan pantai di sekitarnya. Berdasarkan analisis diperoleh bahwa gelombang (yang dapat mencapai tinggi 1,5 meter) dan sedimentasi (berupa akresi dan abrasi) menjadi faktor penting dalam mempertimbangkan pemilihan jenis bangunan pelindung pantai di Perairan Patimban. Struktur pelindung dermaga yang direncanakan dalam Rencana Induk Pelabuhan Patimban cukup efektif melindungi dermaga. Untuk pantai di sekitar pelabuhan direkomendasikan bangunan pelindung berupa jetty bertipe pendek untuk mengantisipasi pembelokan muara sungai yang diakibatkan aktivitas sedimentasi di muara Sungai Cipunagara dan penanaman hutan mangrove di sepanjang Pantai Patimban untuk mengatasi fenomena abrasi.Kata kunci: tinjauan hidro-oseanografi, bangunan pelindung pelabuhan, pelabuhan utamaABSTRACTGovernment of Indonesia plans to construct a new port as International Hub Port hierarchy which support Port of Tanjung Priok at Patimban, Subang District. The port construction needs technical aspects studies, such as coastal protection stuctures. This study aims to analyze the hydrooceanography factors (wave, vessel maneuverability, and sedimentation) on Port of Patimban plan area to find the effectivity of coastal protection stuctures to protect port and its coastal area. Based on analysis it is found that the wave (which can reach 1,5 metres high) and sedimentation (accretion and abrasion) will be the main factors to consider for determining the appropriate coastal protection structures in Patimban Waters. The coastal protection structures planned in the Patimban Port Master Plan are quite effective at protecting the port. For the Port of Patimban coastal area, protective building in the form of short-type jetty is recommended to anticipate the deflection of Cipunagara River estuary caused by sedimentation. Besides that, planting mangroves along Patimban coastline will overcome the abrasion problem.Keywords: hidro-oceanography consideration, coastal protection structures, international hub port

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Performance of Light Coastal Structures Under Normal and High Water Conditions

Canadian Journal of Civil Engineering ◽

10.1139/l75-035 ◽

1975 ◽

Vol 2 (4) ◽

pp. 381-391 ◽

Cited By ~ 1

Author(s):

J. W. Kamphuis

Keyword(s):

Lake Erie ◽

High Water ◽

Water Levels ◽

Coastal Protection ◽

Coastal Structures ◽

Water Conditions ◽

Protection Structures

A number of lightweight coastal protection structures, built on the Lake Erie shore are discussed in this paper. There were two constraints on the design; limited funds and a very precarious downdrift beach. Thus the structures were inexpensive and the protection was low-key to prevent damage downdrift. In 1972–1974 these structures were subjected to a combination of large waves and high water levels and thus they were tested well beyond their design limits.The paper discusses the structures, their performance under normal conditions, and their performance during and after the abnormally high water levels. It is found that inexpensive, low-key structures are sufficiently strong to survive normal conditions, but fail by overtopping and flanking under conditions beyond their low design limits.

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Current condition of coastal protection structures of Meulaboh, Westcoast of Sumatra Island, Indonesia

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/869/1/012030 ◽

2021 ◽

Vol 869 (1) ◽

pp. 012030

Author(s):

W B Setyawan ◽

E Wulandari

Keyword(s):

Indian Ocean ◽

High Energy ◽

Wave Activity ◽

Coastal Protection ◽

Erosion Hazard ◽

The Indian Ocean ◽

Tourism Potential ◽

2004 Tsunami ◽

The City ◽

Protection Structures

Abstract Meulaboh is coastal city that has tourism potential. The city has been facing coastal erosion hazard since a long time from high energy wave activity coming from Indian Ocean. To protect the coast from the erosion hazard, a coastal defence structures were built along the city’s coast overlooking the Indian Ocean. Before the 2004 tsunami, hard structures built on the coast that open to waves from the Indian Ocean were damaged by daily wave activity. This study assess effectiveness of the current coastal protection structures protect coastline in the three coastal segments of the city, namely the Padang Seurahet, Ujung Karang and Kampung Pasir, in order to find out if the construction of the structures is the right choice. Related to the tourism potential of Meulaboh City also studied the possibility to expand the function of the structures. The coastal protection structures data for this study were mainly obtained from field observations in June 2021. Effectiveness of the structures protecting coastline were analysed based on technical criteria. Meanwhile, possibility to expand the function of the structures were analysed according to environmental condition of the coastal segments and types of tourism activity. The results of this study show that the hard structure that now exists on Meulaboh coast can protect the city’s coast from the hazard of erosion without negatively impacting the surrounding coastline. In addition, the structure is considered to be expandable to support the development of tourism potential of Meulaboh City. Thus it can be conclude that the choice of hard structure for coastal protection in most of Meulaboh coastline is appropriate.

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Study of the Coastal Vulnerability in Indramayu Regency, Indonesia

Journal of Marine Science ◽

10.30564/jms.v3i2.2859 ◽

2021 ◽

Vol 3 (2) ◽

Author(s):

Waluyo Waluyo ◽

Amelia Fitrina Devi ◽

Taslim Arifin

Keyword(s):

Coastal Area ◽

Gis Mapping ◽

Coastal Protection ◽

Physical Parameters ◽

Coastal Vulnerability ◽

Physical Vulnerability ◽

Coastal Vulnerability Assessment ◽

Physical Infrastructure ◽

The Status ◽

Social Demographic

Coastal vulnerability is a condition of a coastal community or society that leads to or causes an inability to face the threat of danger. The level of vulnerability can be viewed from the physical (infrastructure), social, demographic, and economic vulnerabilities. Physical vulnerability (infrastructure) describes a physical condition (infrastructure) that is prone to certain hazard factors. The coastal vulnerability areas can also be interpreted as a condition where there is an increase in the process of damage in the coastal area which is caused by various factors such as human activities and factors from the nature. This research aims to determine the level of coastal vulnerability in Indramayu coastal Regency with a Coastal Vulnerability Assessment (CVA) analysis approach and a Geographic Information System (GIS). Mapping the status of the vulnerability level of the Indramayu coastal area using the CVA method where the index range generated from the calculation of the four physical parameters mentioned above is between 2.887 – 3.651 or are in moderate vulnerability. A higher vulnerability value is found in several locations such as Juntikedokan and Benda villages. It is necessary to develop coastal protection in this area to prevent damage to the coastal area.

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