Coastal Protection for Ada, Ghana: a Case Study

2016 ◽  
Author(s):  
Annelies Bolle ◽  
Luciana das Neves ◽  
Joris Rooseleer
Keyword(s):  
Jurnal Segara ◽  
2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Aprizon Putra

Padang city has a coastline 80.24 km with a water area 72,000 ha, and 19 small islands. Overall, coastal in Padang City consists of beach sloping 41.52 km, cliff 22.08 km, muddy 8.19 km, and type of artificial beach in form of building coastal protection. The research aims at identifying suitability for ecotourism beach (category of recreation beach and mangrove). The methodology used ie with the matrix of suitability ecotourism beach using geospatial approach. Research results for suitability category recreation beach in 24 locations in beach Padang City 18 locations are in the category of very suitable with a value 82.28 % and only beach in Bung Hatta University are in category conditional with a value 27 %. Suitability category ecotourism mangrove in 19 locations in beach Padang City 6 location is in a category is in accordance with a value 92.11 % and 4 location is in a category conditional/not suitable to value 50.88 %.


2015 ◽  
Vol 19 (3) ◽  
pp. 281-294 ◽  
Author(s):  
Ali Masria ◽  
Moheb Iskander ◽  
Abdelazim Negm

2021 ◽  
Vol 40 (10) ◽  
pp. 152-166
Author(s):  
Zhentao Chong ◽  
Min Zhang ◽  
Jiahong Wen ◽  
Luyang Wang ◽  
Jie Mi ◽  
...  

Author(s):  
Rosaria E. Musumeci ◽  
Carla Faraci ◽  
Felice Arena ◽  
Enrico Foti

In the present paper the risk of beach erosion is evaluated by applying the Equivalent Triangular Storm (ETS). The selected case study is ‘La Plaja’ beach located in the South of Catania, Sicily. The proposed approach has shown that when the ETS model is applied, a shoreline retreat has been found which on average overestimates the one obtained by means of actual storm data of about 35%. The model has been applied for the determination of the return period of shoreline recession due to beach erosion during extreme events in order to recover risk maps, which can provide useful information in the planning of coastal interventions. Finally the model has been applied to predict the shoreline retreat in the presence of a submerged breakwater, confirming that the introduction of such coastal protection work strongly limits the risk of coastal erosion.


2012 ◽  
Vol 1 (33) ◽  
pp. 21 ◽  
Author(s):  
Emma Jane Rendle ◽  
Mark Davidson

Geotextile artificial surfing reefs (ASR) are being considered by coastal planners due to their multifunctional potential for coastal protection and habitat provision, as well as additional recreational amenity. However, little research exists on the impact of submerged geotextile structures on the physical marine environment. Europe’s first ASR was constructed in 2009 on the south coast of England in Boscombe and is the case study for this paper. This research investigates the claims regarding the structural resilience of an ASR, the modifications to the inshore wave climate and the shoreline response induced by the introduction of an ASR to a system. The Boscombe ASR has suffered from damage, two major geotextile sand filled containers have degraded in this shallow marine environment in two years post-construction. Observations and simulations presented indicate ameliorated wave field leeward of the ASR. There is little shoreline response, given the structures distance offshore, and no salient or widening of the beach has occurred.


2020 ◽  
Vol 3 (1) ◽  
pp. 86-115
Author(s):  
C.R. Scott ◽  
E. Harris ◽  
I.H. Townend

Many of the world’s coastlines are vulnerable to erosion and at risk from tidal flooding. Addressing and managing these risks presents major challenges especially when seeking to sustainably balance the requirements for coastal protection with other economic, environmental, and societal objectives. The nature and scale of these challenges varies greatly from site to site and can often be magnified on dynamic shorelines that are subject to a high degree of physical and ecological change. Applying an ongoing process of adaptive management is widely agreed to be a key mechanism for dealing with such dynamic conditions and issues of uncertainty. However, under this process it can be difficult for different stakeholders to reach a consensus about the most suitable intervention actions. In part, this can arise because there is an incomplete understanding about past, present, and, especially, future environmental processes. It can also occur due to differences in the perceptions and priorities of the relevant stakeholders. This paper reviews some of these complexities using, as a case study, recent developments of a shingle spit and tidal inlet at Pagham Harbour, on the south coast of the UK. This example provides lessons in the application of adaptive management and working with nature concepts in a particularly complex coastal setting. This paper considers these lessons in the context of the site’s history, the legal and policy framework, and established understanding about the natural environment.


Marine Policy ◽  
1999 ◽  
Vol 23 (4-5) ◽  
pp. 453-463 ◽  
Author(s):  
David Whitmarsh ◽  
James Northen ◽  
Shabbar Jaffry

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Shervin Motamedi ◽  
Roslan Hashim ◽  
Rozainah Zakaria ◽  
Ki-Il Song ◽  
Bakrin Sofawi

Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.


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