Journal articles on the topic 'Beach protection (Gold Coast'
To see the other types of publications on this topic, follow the link: Beach protection (Gold Coast.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Beach protection (Gold Coast.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Jackson, Angus, Rodger Tomlinson, Bobbie Corbett, and Darrell Strauss. "LONG TERM PERFORMANCE OF A SUBMERGED COASTAL CONTROL STRUCTURE: A CASE STUDY OF THE NARROWNECK MULTI-FUNCTIONAL ARTIFICIAL REEF." Coastal Engineering Proceedings 1, no. 33 (December 14, 2012): 54. http://dx.doi.org/10.9753/icce.v33.structures.54.
Full textAbstract:
In response to the increasing occurrences of beach erosion along Surfers Paradise and Main Beaches - Gold Coast, Australia, the Northern Gold Coast Beach Protection Strategy [NGCBPS] was developed to widen the beach by 20-30m as well as improving surfing conditions as a secondary objective. The strategy, implemented in 1999- 2000, involved large-scale beach nourishment and construction of a submerged breakwater “reef” to act as a control point at Narrowneck. Construction of the reef involved innovative filling and placement methods using very large sand filled geotextile containers coupled with significant advances with regards to design of the geotextile material and containers. In the 11 years since construction, there has been substantial monitoring of the project since its completion in late 2000 including: - video imaging using webcams; hydrographic and beach surveys; aerial and oblique photography; surf and surf safety observations and GPS surfing track plots; and geotextile container condition and stability. This paper presents an update on the performance of the reef over the last four years. In particular, the response of the structure and the shoreline to a series of major storm events in 2009 has been examined. The results have shown that the erosion caused by these major events was accommodated within the wider beach created in 1999. Over the next 2 years there was a gradual recovery in the lee of the reef with a subtle groyne effect resulting in an even larger increase in the width of the updrift beach. A detailed underwater condition survey was also undertaken in 2011, to determine changes in the condition of the geotextile containers. This revealed a number of containers missing or damaged, and that seaward containers were covered by sand. The marine habitat which has been a feature of the reef has been impacted by the increased coverage of sand, but still shows high abundance and biodiversity.
2
Ware, Daniel, Andrew Buckwell, Rodger Tomlinson, Kerrie Foxwell-Norton, and Neil Lazarow. "Using Historical Responses to Shoreline Change on Australia’s Gold Coast to Estimate Costs of Coastal Adaptation to Sea Level Rise." Journal of Marine Science and Engineering 8, no. 6 (May 26, 2020): 380. http://dx.doi.org/10.3390/jmse8060380.
Full textAbstract:
Climate change impacts, sea level rise, and changes to the frequency and intensity of storms, in particular, are projected to increase the coastal land and assets exposed to coastal erosion. The selection of appropriate adaptation strategies requires an understanding of the costs and how such costs will vary by the magnitude and timing of climate change impacts. By drawing comparisons between past events and climate change projections, it is possible to use experience of the way societies have responded to changes to coastal erosion to inform the costs and selection of adaptation strategies at the coastal settlement scale. The experience of implementing a coastal protection strategy for the Gold Coast’s southern beaches between 1964 and 1999 is compiled into a database of the timing, units, and cost of coastal protection works. Records of the change to shoreline position and characteristics of local beaches are analysed through the Bruun model to determine the implied sea level rise at the time each of the projects was completed. Finally, an economic model updates the project costs for the point in the future based on the projected timing of sea level rise and calculates a net present value (NPV) for implementing a protection strategy, per km, of sandy beach shoreline against each of the four representative concentration pathways (RCP) of the Intergovernmental Panel on Climate Change (IPCC) to 2100. A key finding of our study is the significant step-up in expected costs of implementing coastal protection between RCP 2.6 and RCP 8.5—from $573,792/km to $1.7 million/km, or a factor of nearly 3, using a social discount rate of 3%. This step-up is by a factor of more than 6 at a social discount rate of 1%. This step-up in projected costs should be of particular interest to agencies responsible for funding and building coastal defences.
3
Thompson, Michael, Ivan Zelich, Evan Watterson, and Tom E. Baldock. "Wave Peel Tracking: A New Approach for Assessing Surf Amenity and Analysis of Breaking Waves." Remote Sensing 13, no. 17 (August 25, 2021): 3372. http://dx.doi.org/10.3390/rs13173372.
Full textAbstract:
The creation and protection of surfing breaks along populated coastlines have become a consideration for many councils and governments as surfing breaks are a major driver of tourism. To assess the surf amenity of surfing breaks, a quantitative and objective assessment method is required. A new wave peel tracking (WPT) method has been developed using a shore-based camera to assess surf amenity by measuring and quantifying potential surfing ride rate, length, duration, speed and direction on a wave-by-wave basis. The wave peel (or “curl” below the wave peak) is the optimal surfing region on a wave, and each wave peel track represents a surfable ride. Wave peel regions are identified, classified and tracked using traditional and machine learning-based computer vision techniques. The methodology is validated by comparing the rectified wave peel tracks with GPS-measured tracks from surfers in the wave peel regions. The WPT methodology is evaluated with data from a reef and adjacent natural beach at the Gold Coast, Australia. The reef produced longer ride lengths than the nearshore region and showed a consistent breaking location along the reef crest. Spatial maps of the wave peel tracks show the influence of tides on the wave breaking patterns and intensity. The WPT algorithm provides a robust, automated method for quantifying surf amenity to provide baseline data for surf break conservation. The methodology has potential uses to verify numerical modelling of surf breaks and to assess the impact of coastal development on surf breaks.
4
Yuan, Fang, and Ron Cox. "MODELLING BEACH MORPHODYNAMICS FOR SOUTHERN GOLD COAST BEACH NOURISHMENT PROJECT AT BILINGA BEACH." Coastal Engineering Proceedings 1, no. 34 (October 27, 2014): 34. http://dx.doi.org/10.9753/icce.v34.sediment.34.
Full text
5
WANG, PING. "BEACH PROCESSES AND SHORE PROTECTION ALONG THE NORTHERN COLOMBIA COAST." William Morris Davis – Revista de Geomorfologia 1, no. 2 (December 30, 2020): 60–85. http://dx.doi.org/10.48025/issn2675-6900.v1n2.p60-85.2020.
Full textAbstract:
The shoreline of northern Colombia is located in the tropical zone along the south coast of Caribbean Sea. Its coastal processes are strongly influenced by the northeast trade wind, which results in the dominating northeasterly approaching wave occurring over 95% of the time. This drives a persistent southwestward longshore sand transport. The state of the beach along the generally northeast-southwest trending northern Colombia coast is strongly influenced by this constant unidirectional longshore sediment transport. At locations where this westward longshore sand transport is interrupted, naturally or anthropogenically, beach accretion occurs along the updrift shoreline coupled with erosion at the downdrift side. Natural interruption of longshore transport can be caused by tidal inlets, protruding headland, shoreline orientation change, and nearshore bathymetry variations. Anthropogenic interruption of the longshore transport along the northern Colombia coast is mainly caused by the construction of groins, as well as harbors at some locations. Numerous groins were constructed due to their local success in creating beach accretion at the drift side. However, severe beach erosion occurs along the downdrift shoreline. Shoreline protection along the northern Colombia coast, and coasts in the tropical area in general, should carefully consider the persistent unidirectional longshore sand transport and should not be misguided by the local updrift accumulation as being a successful project.
6
Palmer, Kelly. "The beach as (hu)man limit in Gold Coast narrative fiction." Queensland Review 25, no. 1 (June 2018): 149–62. http://dx.doi.org/10.1017/qre.2018.13.
Full textAbstract:
AbstractGold Coast beaches oscillate in the cultural imagination between everyday reality and a tourist's paradise of ‘sun, surf and sex’ (Winchester and Everett 2000: 59). While these narratives of selfhood and becoming, egalitarianism and sexual liberation punctuate the media, Gold Coast literary fictions instead reveal the beach as a site of danger, wholly personifying the unknown. Within Amy Barker's Omega Park, Melissa Lucashenko's Steam Pigs, Georgia Savage's The House Tibet and Matthew Condon's Usher and A Night at the Pink Poodle, the beach is a ‘masculine’ space for testing the limit of the coastline and one's own capacity for survival. This article undertakes a close textual analysis of these novels and surveys other Gold Coast fictions alongside spatial analysis of the Gold Coast coastline. These fictions suggest that the Gold Coast is not simply a holiday world or ‘Crime Capital’ in the cultural imagination, but a mythic space with violent memories, opening out onto an infinite horizon of conflict and estrangement.
7
Griffin, Grahame. "Beyond the Beach and into the Blue: Gold Coast High-rises and the Oceanic Gaze." Cultural Studies Review 9, no. 1 (September 13, 2013): 124–38. http://dx.doi.org/10.5130/csr.v9i1.3588.
Full textAbstract:
Gold Coast high-rises are big and tall and sometimes they appear or are made to appear bigger and taller than they really are. They also loom large in other ways. They are part of the fabric and fantasy of the Gold Coast. They are its supreme icons. Only nine per cent of the permanent population lives in high-rises and the canal estates have considerable local cachet and appeal. Yet the city turns to its high-rises not only to promote itself to the rest of the world, but also to hold its own self-image: the Gold Coast City Council sponsors a ‘heritage’ architectural guide to tall buildings on the Gold Coast; the Gold Coast Bulletin constantly features articles on new high-rise plans and developments, high-rise architects, builders and developers, and high-rise residents. No-one seems to complain about views being obscured, at least publicly, and the shadows-on-the-beach argument, once a talking point, has been abandoned—in resignation, perhaps.
8
Boguslavsky, Alexander, and Sergey Kazakov. "Features of lithodynamics of pebble beaches at south coast of Crimea." InterCarto. InterGIS 27, no. 3 (2021): 85–97. http://dx.doi.org/10.35595/2414-9179-2021-3-27-85-97.
Full textAbstract:
The results of the study of the peculiarities of lithodynamics of pebble beaches of the South Coast of Crimea based on the long-term monitoring of the state of beaches performed at the Black Sea Hydrophysical Subsatellite Proving Ground of the Marine Hydrophysical Institute of the Russian Academy of Sciences in the settlement of Katsiveli are presented. Long-term changes of the beach of Limensky Bay since 1950 and of beaches of the shore protection structures since 1988 are characterized. The volume of income and outcome of pebbles during the change of wind-wave regimes was estimated by the example of Limensky Bay beach and the artificial beaches of the coast protection structures in the coastline section from Katsiveli to Ponizovka settlement. The most influential factor in the formation of the pebble beaches of the Southern Coast of Crimea is the change in alongshore wind-wave regimes in the “days-months” time scale, which leads to significant fluctuations in sea level near the coast and a corresponding change in the directions of the bottom current velocity components perpendicular to the shoreline. The largest expense and income of beach-forming material (up to 1 m3/day per linear meter of beach) occurs during storms, respectively, with wind-wave regimes of the eastern and western directions. The largest irreversible removal of the mass of beach-forming materials during the change in wind-wave regimes occurs from the eastern and central sections of the bays and artificial beaches of coastal protection structures, and partial restoration of beaches—on their western sections. Natural underwater reefs in the coastal waters of bays and artificial beaches of shore protection structures contribute to the preservation of beaches in them. The reason for the gradual average long-term degradation of beaches may be the predominance of eastern storm winds over western ones in conditions of blocking the natural income of beach-forming materials from the coast by the coastal infrastructure objects.
9
Todd, Derek J., and Kim Bowa. "Development of Beach Health Index for the Gold Coast, Australia." Journal of Coastal Research 75, sp1 (March 3, 2016): 710–14. http://dx.doi.org/10.2112/si75-142.1.
Full text
10
Cartlidge, Nigel. "Typologies of Urban Beach Precincts of the Gold Coast, Australia." Spaces and Flows: An International Journal of Urban and ExtraUrban Studies 1, no. 1 (2011): 185–202. http://dx.doi.org/10.18848/2154-8676/cgp/v01i01/53754.
Full text
11
Mudi Hafli, Teuku, Fasdarsyah Fasdarsyah1, Ninda Nidya, David Sarana, and Syibral Syibral. "Analysis The Impact of The Coastal Protection Construction Development Plan On Shoreline and Estuary Changes." Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS) 3 (December 17, 2022): 00009. http://dx.doi.org/10.29103/micoms.v3i.39.
Full textAbstract:
This beach, which is located in Aceh Province, especially Bireuen Regency, Jangka District, Kuala Ceurape, is an tourist beach area, aquaculture,e and also a settlement. Several efforts to control sedimentation and erosion have been carried out by constructing coastal protection buildings on the coast. However, in the estuary, there are no coastal protection structures such as jetties. Estuaries have quite high economic value because they function as connecting channels between sea and land. The height of the wave currents around the estuary can cause the accumulation of sediment or silt of the beach by erosion which can result in decreased utilization of the coast around the estuary. Therefore, it is necessary to analyze the impact of coastal protection construction planning to determine the formation of sedimentation and erosion that occurs around the coast. This study used the Delft3D application to simulate changes in coastlines and estuaries over a period of 5 years. The data used in this study are wind data for 10 years from 2012 to 2021, depth data, tidal component data, factor morphology calculations, significant wave height calculations (Hs,), and significant wave periods (Ts). This simulation uses 4 (four) wind directions, namely North, Northeast, East, and Northwest directions. The results of modeling simulations over a period of 5 years show that the beach condition with the planned construction of the coastal protection has progressed along the coastline by ± 77,053 meters and progress of around ± 77.421 meters on the coast. On the contrary, it experienced a coastline retreat of ± 143.076 meters and experienced a shoreline advance of around ± 84.647 meters in the estuary. So it can be concluded that the construction of the Jetty building alone is not enough to reduce the occurrence of erosion and sedimentation problems around the coast, especially in the estuary. There is a need for the construction of other coastal protection structures.
12
Rebouças, Renata Cardia, José Maria Landim Dominguez, and Abílio Carlos da Silva Pinto Bittencourt. "Provenance, transport and composition of Dendê Coast beach sands in Bahia, central coast of Brazil." Brazilian Journal of Oceanography 59, no. 4 (December 2011): 339–47. http://dx.doi.org/10.1590/s1679-87592011000400004.
Full textAbstract:
The great physiographic diversity of the Dendê Coast favors the production of different beach sediment types, including bioclastic components. In this study 74 beach samples collected at 2 km intervals were used to evaluate beach sediment composition. For each sample, 300 grains were identified for each grain size class coarser than 0.125 mm, using a binocular microscope. The beach sediments of the Dendê Coast are essentially siliciclastic (80-100%). Quartz is the major component (70-100%). Only at the Tinharé and Boipeba islands bioclasts are major components of beach sands reaching up to 80-100%. These sediments are made up essentially of fragments of Halimeda, reaching percentages up to 70%. Coralline algae and mollusks also contribute significantly to these sediments (up to 30%). The results obtained show that the spatial distribution of the bioclastic components provide important information on the environmental conditions present at the shoreline (energy levels, availability of hard substrates and protected areas, pattern of sediment dispersion) and on the sediment sources as well. The composition of the beach sediments on the Dendê Coast reflects the present day environmental conditions and show that these sediments do not experience significant lateral transport. This situation is favored by an impeded longshore transport that characterizes most of the region. Although, in general, the rivers that discharge on the Dendê Coast appear to transport few sediments to the coastal zone, the presence of heavy minerals, micas and feldspars suggests river contributions to the beach sediments. On the other hand, the coral and coralline algae reefs, besides offering a natural protection to the shoreline, also represent an important source of beach sands.
13
UDA, Takaaki, Satoquo SEINO, Toshinori ISHIKAWA, and Masumi SERIZAWA. "HISTORICAL BEACH EROSION OF SOUTHWEST SURUGA COAST AND SHORE PROTECTION." PROCEEDINGS OF CIVIL ENGINEERING IN THE OCEAN 16 (2000): 601–6. http://dx.doi.org/10.2208/prooe.16.601.
Full text
14
Roslan, Nuraini, and Abd Halim Hamzah. "OWNERSHIP AND ACCESS ON BEACH: A CASE STUDY ON AVANI SEPANG GOLD COAST, SELANGOR, MALAYSIA." Journal of Tourism, Hospitality and Environment Management 7, no. 27 (March 8, 2022): 198–210. http://dx.doi.org/10.35631/jthem.727016.
Full textAbstract:
Private beach is a global practice in enhancing tourism industry activity but relatively new concept in Malaysia. While tourism is under responsibility of the federal government, utilization and use of land belong to state authority’s power and control pursuant to Federal Constitution 1957. This including land consist of beach pursuant to National Land Code 1965. However, Malaysia is yet to have specific statutory governance on beach or coastal. This paper focuses on State of Selangor government practice in land administration regarding practice of private ownership existence on beach. It will discuss on the government’s reason, present administration and management for the practice and uptake on public access to private owned beach. A qualitative methodology has been adopted by using case study strategy on AVANI Sepang Gold Coast (SGC), Bagan Lalang, Sepang, Selangor. Data has gathered through document analysis and semi-structured interviews on purposive key informants including local authority and state agency representatives. It was found that the practice of ‘private beach’ in Selangor exist through state land alienation and transfer process to ‘joint venture’ entity which include state agency for ‘eco-tourism’ redevelopment in Bagan Lalang’s coastal area which comprises of soil land, beach land and water. This practice was found in line with State of Selangor government guideline on ‘Pekeliling Pengarah Tanah Dan Galian Selangor Bilangan 14/2010: Panduan Pemberimilikan Tanah Dasar Laut Bagi Tujuan Pembangunan Di Atas Dasar Air Di Negeri Selangor.’ Further findings were explained in SWOT (Strength, Weakness, Opportunity, and Threat) analysis. To conclude, key informants agree this complex issue requires intense caution when considering the implications, models, and administrative processes associated for beach redevelopment and sustainable.
15
Hojan, Rurek, and Krupa. "The Impact of Sea Shore Protection on Aeolian Processes using the Example of the Beach in Rowy, N Poland." Geosciences 9, no. 4 (April 17, 2019): 179. http://dx.doi.org/10.3390/geosciences9040179.
Full textAbstract:
The Polish Baltic Sea coast is subject to constant changes as a result of sea erosion on sandy and clayey sections. Sand accumulates only on a few sandy sections of the shore. There are various methods of protection limiting the negative impact of sea waves on the shore. In the city of Rowy, the coast was secured with the use of a comprehensive method (artificial reef, textile tube, spurs, and beach nourishment), which has mitigated the sea’s negative impact. The beach has been widened. The upper part of the beach has been built up to the level of the foredune. Biotechnical protection has not been applied at the border between the beach and the foredune (fascine hurdles from brushwood, sand fences, and branches). This has caused wind blowing of sand from the beach to the forest growing on the foredune. The sand also covered the access road to holiday resorts. This was favored by the strong wind from the sea. Several morphological surveys were carried out, including topographic surveys and sedimentological samplings. The range of sand coverage and types of forms (aeolian shadows and drifts) were determined. Fifty eight samples of sand from various sources were collected for sedimentological analysis. Speed and directions of winds that occurred in 2001–2018 were also analyzed. Three wind speed criteria were distinguished: ≥4 m·s-1, ≥10 m·s-1, and ≥15 m·s-1, responsible for blowing away and transporting material. Results indicate that reconstruction of the beach to the height of the foredune, lack of biotechnical protection, and strong, coastal directions of the wind were the main factors responsible for increased aeolian transport of sand inland. Effects of aeolian processes such as those observed on the beach in Rowy were not observed elsewhere on the Polish coast of the South Baltic Sea, where beach nourishment was also performed.
16
Sedigh, Mahnaz, Rodger Tomlinson, Aliasghar Golshani, and Nick Cartwright. "LONG TERM MORPHOLOGICAL EVOLUTION OF THE GOLD COAST SEAWAY: HISTORICAL AND NUMERICAL ANALYSIS." Coastal Engineering Proceedings 1, no. 33 (October 25, 2012): 28. http://dx.doi.org/10.9753/icce.v33.posters.28.
Full textAbstract:
The Gold Coast Seaway is one of two main tidal inlets located on the Australian East coast at a longitude of 27°56’10S and a latitude of 153°25’60E linking an intra-coastal waterway known as The Broadwater with the Pacific Ocean.. The reasons for construction of the Gold Coast Seaway and the associated sand by-passing system in the 1980s were stabilising the entrance, maintaining a safe navigable channel, preventing shoreline erosion to the north and maintaining an adequate beach width to the south.
17
LI, Guangxue, Lixin GONG, Jichao YANG, Dong DING, Bin LI, Lihua CAO, Yonghong WANG, and Ling LIU. "BEACH EROSION ALONG THE COAST OF SHANDONG PROVINCE AND PROTECTION COUNTERMEASURES." Marine Geology & Quaternary Geology 33, no. 11 (2013): 35. http://dx.doi.org/10.3724/sp.j.1140.2013.05035.
Full text
18
Dreizis, Yuriy, and Vladislav Kostin. "Complex coastal protective measures to protect the sandy beach." E3S Web of Conferences 175 (2020): 12017. http://dx.doi.org/10.1051/e3sconf/202017512017.
Full textAbstract:
The environmental impact of the engineering project was taken into account when carrying out comprehensive studies of shore protection engineering measures for the Lazurnoye region of the Kherson region of Ukraine on the north-western coast of the Black Sea. The optimal configuration of hydrotechnical structures are choosen to protect the beach in the region of the incoming wave impact. The entire coastline of the Lazurnoye region is about 3000 meters. In the course of modelling and numerical experiments, the transfer of bottom sediments to the coast, the evolution of the coastline and beaches, and other coastal processes were studied. The project of comprehensive coastal protection of the Lazurnoye region, presented on the basis of mathematical and hydraulic modelling, has allowed the development of engineering solutions that meet coastal protection and environmental requirements. The most expedient variant of coastal protective measures was the creation of a system of the beachprotected structures capes from sections of the permeable slope-steps designs with wave damping chambers. The presented research results and the solution of many problems of the dynamics of the coastal zone of the sea can be considered as an attempt to manage coastal processes on rather large and complex sections of the coast with a joint solution to the problems of hydraulic engineering, management of water quality in the coastal zone of the sea, and the choice of optimal options with the least impact on the environment.
19
Green, Kate. "Palazzo Versace and Couran Cove: Contrasting Resort Gardens of the Gold Coast." Queensland Review 10, no. 2 (November 2003): 141–48. http://dx.doi.org/10.1017/s132181660000341x.
Full textAbstract:
There are 450 accommodation facilities on the Gold Coast, including hotels, caravan parks, apartments, villas and resorts. This paper will focus on two distinctly different resorts – each has a distinct image and consequently the difference in the garden styles is vast. Palazzo Versace at Main Beach, on the northern end of the Gold Coast mainland tourist strip is the epitome of style. Palazzo Versace has been described as ‘a place of Renaissance splendour, elegance and ease – in a breathtaking location’. By contrast the eco-tourism resort of Couran Cove Island Resort, stretching from the ocean front to the Broadwater, is a gentle and relaxing kind of place, a haven from the energetic and glamorous, busy Gold Coast.
20
Saengsupavanich, Cherdvong. "Successful Coastal Protection by Step Concrete Revetments in Thailand." IOP Conference Series: Earth and Environmental Science 1072, no. 1 (September 1, 2022): 012002. http://dx.doi.org/10.1088/1755-1315/1072/1/012002.
Full textAbstract:
Abstract Coastal revetment has a main function to protect eroding shorelines. Sometimes, the revetment is considered ineffective and harmful to the environment. This article presents 3 case studies in Thailand where stepped concrete revetments were successfully implemented. If theoretically accurately designed, the revetments will not only protect the coastlines but also enhance community’s well-being. The case studies at the Suan-Son beach, the Pra-Ae beach, and the Laem-Sadet beach advocate such a claim. When the incoming waves break on the steps, the revetment crest is accurately configured, the front slope is well-designed, the wave reflection will be minimized. The sand will climb and deposit on the steps. The beach berm will be wide. People can walk either on the beach or the revetment crest. Tourism will be promoted. Livelihoods of coastal communities will be enhanced. Sustainable coastal development can follow. None of these can happen if the coast is still being eroded. The revetment is not a bad thing. What is bad is an engineer who poorly designs the revetment. The misleading belief that the revetment will do more harm than good must be adjusted.
21
Iordanishvili, Irina, Inga Iremashvili, Adam Ujma, Vladimer Shurgaya, Nodar Kandelaki, and Konstantin Iordanishvili. "Modeling Procedure of Coastal Protection Shaped Blocks with High Wave Suppressing and Interlocking Capacity." E3S Web of Conferences 97 (2019): 05050. http://dx.doi.org/10.1051/e3sconf/20199705050.
Full textAbstract:
A groyne is a shore protection structure built perpendicular to the shoreline of the coast (or river), over the beach and into the shoreface (the area between the nearshore region and the inner continental shelf), to reduce longshore drift and trap sediments. A groyne field or system is a series of groynes acting together to protect a beach. Concret is often used as construction material. On the basis of analysis of wave suppression efficiency and stability on the slope of more than one hundred existing shaped massives the new type of coast protecting reinforced concrete blocks – so called “Hexablock” (“Hexablock” was called because of its 6 facets) characterized with higher wave suppression properties, interlocking capacity, stability on the slope and longer life time is proposed.
22
Nayak, Bibhuranjan. "Gold in the beach placer sands of Chavakkad-Ponnani, Kerala Coast, India." Journal of the Geological Society of India 78, no. 4 (October 2011): 345–48. http://dx.doi.org/10.1007/s12594-011-0099-z.
Full text
23
ISHIKAWA, Toshinori, Toshiro SAN-NAMI, Takaaki UDA, Jun-ichi HOSOKAWA, and Masaaki WADA. "Verification of Shore Protection Effect of Beach Nourishment on Chigasaki-naka Coast." Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 68, no. 2 (2012): I_686—I_690. http://dx.doi.org/10.2208/kaigan.68.i_686.
Full text
24
Kumada, Takayuki, Takaaki Uda, Takeo Matsu-ura, and Michio Sumiya. "FIELD EXPERIMENT ON BEACH NOURISHMENT USING GRAVEL AT JINKOJI COAST." Coastal Engineering Proceedings 1, no. 32 (January 29, 2011): 100. http://dx.doi.org/10.9753/icce.v32.sediment.100.
Full textAbstract:
Beach nourishment using 87,000 m3 of gravel with grain size between 2.5 and 13 mm was experimentally carried out until April 2008 at the Jinkoji coast, which faces the Pacific Ocean and is surrounded by artificial headlands. Monitoring surveys, a boring test and core sampling on the beach were carried out to investigate the mechanism of the formation of gravel layers and their effect on protecting the foot of the seawall. It was found that the nourishment gravel was deposited with a slope of 1/8 at the foot of the seawall, thus providing some protection to the seawall, and that the nourishment gravel was stably deposited without offshore discharge.
25
Karlonienė, Dovilė, Donatas Pupienis, Darius Jarmalavičius, Aira Dubikaltinienė, and Gintautas Žilinskas. "The Impact of Coastal Geodynamic Processes on the Distribution of Trace Metal Content in Sandy Beach Sediments, South-Eastern Baltic Sea Coast (Lithuania)." Applied Sciences 11, no. 3 (January 25, 2021): 1106. http://dx.doi.org/10.3390/app11031106.
Full textAbstract:
Sandy coasts are one of the most dynamic spheres; continuously changing due to natural processes (severe weather and rising water levels) and human activities (coastal protection or port construction). Coastal geodynamic processes lead to beach sediment erosion or accumulation. The coast’s dynamic tendencies determine the changes in the volume of beach sediments; grain size; mineralogical; and geochemical composition of sediments. In addition to lithological and mineralogical analysis of sediments, geochemical analysis can provide valuable information about the local and regional patterns of sediment transport, distribution, provenance, and coasts’ conditions. The study aims to assess trace metals’ temporal and spatial distribution determined in the sandy beach sediments along the south-eastern Baltic Sea coast (Lithuania) during 2011–2018. The Lithuanian seacoast is divided into two parts: mainland and spit coast. Our results revealed that the dominant group of elements on the mainland includes Ca–Mg–Mn–Ti and on the Curonian Spit Fe–Pb–As–Co–Cr–Ni–Al, which remain unchanged during the years. The analysis included additional parameters such as beach volume, grain size and sorting, and heavy mineral concentration on the beach. The spatial analysis of trace elements indicated that the trace metal content depends on the coastal processes, but it differs in the mainland and spit sea coast. We identified a higher concentration of trace metals in the erosion-dominated areas in all analysed years on the mainland coast. On the spit coast, the trace metal concentration increased in areas associated with relict coarse sand and where the loading of sediments was active on the beach due to the northward along-shore transport.
26
Gonzalez Leija, Mariana Berenice, and Enrique Alvarez del Rio. "COASTAL EROSION MANAGEMENT AT YUCATAN, MEXICO: ENGINEERING EFFORTS AND EXPERIENCES." Coastal Engineering Proceedings 1, no. 33 (October 9, 2012): 8. http://dx.doi.org/10.9753/icce.v33.posters.8.
Full textAbstract:
The coast of Yucatan, located in the Gulf of Mexico, is a fragile island barrier system where beach erosion has turned into a problem since the last 25 years. This, in combination with hurricane strikes (Gilbert (1988), Isidore (2002)), led to environmental damages along about 300 km, in 60 km of which, the coastal infra-structure is at risk; fact that decreased the coastal development. Mitigate the erosion required emergency protection works mainly made by beach property owners. The lack of planning and engineering design resulted in areas with high ero-sion rates and the destruction of neighboring beaches and properties.
Among the most important causes that enhanced erosion phenomena along Yucatan are: construction of Progreso pier affecting littoral drift causing ero-sion at the west side beaches, shore normal rock-timber and sand-bags groins constructed empirically by property owners accelerating erosion and stimu-lating even more groin construction, during 90´s groin construction shifted to the east (up-drift) of Progreso Port, and in the last 25 years urban, touristic and fisher industries growth in the region, force the construction of jetties for small harbours along the coast. Axis Ingeniería, and academic research institutions, in conjunction with federal and state authorities the promotion of programs for beach rehabilitation consisting on groins removal and the use of soft solutions (i.e. structures based on geosynthetics for shore protection). The Progreso Beach 7 km nourishment has been one of the most successful efforts resulting in the the development of a stable beach for about 10 years, even without maintenance works. Based on local knowledge obtained with the use of measures that have disregarded the equilibrium of sediment transport processes; Axis Ingenieria used these experiences in combination with technical, environmental legal requirements, capabilities of the local community and socioeconomic tools to implement soft and easily removal structures using geotextile tubes along the coast, that had resulted on positive experiences for beach/dune protection and recovery (i.e. Progreso to Chicxulub , Telchac and Las Coloradas beaches , Yucatan). This poster resumes the experiences from projects dealing with coastal erosion issues that AXIS Ingenieria has conducted being the goal the development and implementation of a Yucatan beach manage-ment program.
27
Vetrova, Natalya, Elmar Mennanov, Tatyana Ivanenko, Anastasia Gaysarova, and Emran Mennanov. "Algorithm for selecting the structures of coastal protection construction to ensure environmentally safe condition of the coastal urbanized recreational areas." E3S Web of Conferences 263 (2021): 02017. http://dx.doi.org/10.1051/e3sconf/202126302017.
Full textAbstract:
The existing concepts and modern methods of ensuring the ecological safety of the coastal zone of the sea were analyzed. The article considers modern theoretical developments and methods of choosing design solutions for special structures – various coastal protection structures (permeable, impermeable, made of various building materials, various shapes). This paper suggests a new algorithm for the choice of Bank protection structures intending to ensure environmentally friendly seaside state urban recreation area from the position of the preservation or restoration of the beach zone, which affects the environmental parameters of the site, which consists of a data collection phase of the study object, the selection of natural and technical factors that affect the ecological security of seaside urban recreational areas, the definition of specialization of the coastal zone in terms of recreation attractiveness of the coast, the evaluation phase of the current dynamics of ecological safety of the beach zone of the shore as an important element of seaside recreation of the urbanized area, which affects the level of environmental security in general, stage select bank protection structures and the definition of the projected factors of ecological safety of the beach zone. To check the application of the algorithm of selection structures bridges to ensure environmentally safe condition seaside urban recreational areas allows further justify the selection of the optimal environmental engineering solutions for the protection of the Western coast of Crimea.
28
Nicholls, R. J., and N. B. Webber. "Coastal erosion in the eastern half of Christchurch Bay." Geological Society, London, Engineering Geology Special Publications 4, no. 1 (1987): 549–54. http://dx.doi.org/10.1144/gsl.eng.1987.004.01.68.
Full textAbstract:
AbstractChristchurch Bay has a long history of shoreline recession and this has given rise to some major coastal engineering problems. An area of particular concern is Hurst Beach at its eastern end, where the maximum rate of recession has increased from 1.5 m a-1 (1867 to 1968) to 3.5 m a-1 (1968 to 1982). Hurst Castle itself is now subject to wave attack on part of its frontage. The littoral sediment movement was assumed to be essentially continuous around Christchurch Bay, but, in fact, a littoral drift sub-cell boundary (i.e. a partial barrier to littoral drift) is present in the vicinity of Hordle Cliff. Therefore, the increased recession of Hurst Beach is a local problem. Milford-on-Sea is situated on a thick sequence of Pleistocene Gravels, whose erosion contributed substantially to the maintenance of Hurst Castle Spit as a major physiographic feature. However, a series of coast protection works were constructed to protect Milford-on-Sea between 1936 and 1968, removing this important source of sediment.In the long term, without any further human interference, recession rates of up to 6 m a-1 will probably occur along Hurst Beach. A breach of Hurst Beach is a major concern, as it would create an island at Hurst Castle and expose the vulnerable, low-lying, northern coast of the West Solent, including the village of Keyhaven, to increased wave attack and tidal scour. Ecologically important saltmarshes would also be destroyed.Shingle renourishment is the only environmentally acceptable engineering solution. Limited renourishment has already commenced. Any cost benefit decisions must consider the wider implications of a breach in Hurst Beach, including environmental and ecological considerations.This case study demonstrates the importance of a detailed understanding of both the littoral and offshore sediment movement for the planning of coast protection.
29
Long, Bui Hong, Nguyen Chi Cong, and Tran Van Binh. "Material balance and ability of beach nourishment for the northern coast of Cai river mouth in Nha Trang bay." Tạp chí Khoa học và Công nghệ biển 19, no. 2 (September 4, 2019): 243–53. http://dx.doi.org/10.15625/1859-3097/19/2/10815.
Full textAbstract:
Nha Trang bay is considered one of the 29 most beautiful bays in the world. This is a coastal area with potential for tourism development with many beautiful clean beaches and dozens of large and small islands. In 2016, Nha Trang has attracted 5 million tourists including 1.2 million international tourists. Recently, while the development of tourism in the country tends to slow down, Nha Trang tourism in the period 2011–2016 increased by 19%/year on average. According to the statistics of Khanh Hoa province, Nha Trang tourism occupies 99% of the province. The number of hotels located in the immediate vicinity of Nha Trang’s central beach is 98% within 500 m from the coastline. In order to develop sustainable tourism, in addition to good management and protection of coastal and estuarine beach environments, more attention should be paid to the rehabilitation, expansion and development of the beach in the northern and southern areas to relieve pressure on the central beach and expand the investment potential and tourism development of Nha Trang city. According to survey data and the calculations based on a local project between Institute of Oceanography and Khanh Hoa province: "Identifying areas capable of rehabilitating and developing artificial beach and proposing solution for protection of natural beaches in Nha Trang Bay" (2014–2016), three beach nourishment scenarios have been simulated and evaluated, suggesting a number of potential areas for rehabilitation and artificial nourishment for the western coast of Nha Trang bay.
30
Ni Nyoman, Pujianiki, Astawa Diputra I Gede, Jayantari Made W, and Mataram INK. "Coastal protection work for Batu Mejan Beach, Bali." MATEC Web of Conferences 276 (2019): 04019. http://dx.doi.org/10.1051/matecconf/201927604019.
Full textAbstract:
Batu Mejan Beach is an international tourist destination located in the Canggu area of Badung regency, Bali. Due to erosion problems of Batu Mejan Beach the local government installed a revetment system to protect the coast. However, the revetment that was built before for the Batu Mejan Beach is currently ineffective and damaged. To determine the parameters for the construction of a new coastal protection system, the wave energy occurring at the site was evaluated initially as part of this study. A Submerged breakwater with a tetrapod for a protective layer was then chosen as the alternative to reduce the wave energy before reaching the shore and to reduce erosion as well as further deterioration of the existing revetment. A Submerged breakwater is suitable in coastal areas that are used as tourism destinations because the submerged breakwater construction is under the water, therefore the beauty of the beach will not be interrupted. Four models were made with variations in the width and elevation of the breakwater peak. The model was selected which has the minimum value of transmission coefficient and minimum cost. The cost budget plan was determined by using the analytical list of the Public Works and Housing Regulations of 2016. From the analysis, a model was selected with a submerged breakwater height of 2.45 m, length of 110 m, distance gap of 55 m, and the budget of IDR 17,861,989,813.
31
Muhammad Ridwan, Teuku, and Abdul Jalil. "A Study Coastal Protection Using Stones Crushed and Tetrapod (Case study at Ujong Blang Beach)." Proceedings of Malikussaleh International Conference on Multidisciplinary Studies (MICoMS) 3 (January 26, 2023): 00045. http://dx.doi.org/10.29103/micoms.v3i.209.
Full textAbstract:
Ujong Blang Beach and Jagu Beach are in Lhokseumawe City. The purpose of this study was to plan a breakwater along the coast of Ujong Blang as an alternative for coastal protection. This includes specifying the details of the breakwater layers and calculating the dimensions of the breakwater. Applying the Hudson method to obtain the diameter and weight of stones grains. The protective layer material uses crushed stones and tetrapods. The results of the analysis obtained breakwater dimensions obtained based on a slope of 1: 2. The results of the analysis that have been obtained are made in the drawing 2D as a result of designing rock mounds with a slope of 1: 2. Breakwaters are planned in a position to protect the coast from waves. The planned breakwater height is 6.32 meters so it has the same elevation and crest dimensions, but the material volume will change less due to the lower contour differences in the sea.This type of breakwater is suitable for Ujong Blang beach, because it will have a good effect on the tourism business. The number of protected layer grains on a slope of 1:2 has a material use of 0.23 tons of tetrapods and a peak width of 3.5 meters.
32
Krylenko, V. V., R. D. Kosyan, and M. V. Krylenko. "THE COASTS OF THE CAUCASIAN NORTH-WESTERN PART OF THE BLACK SEA AT THE BEGINNING OF THE XXI CENTURY." Journal of Oceanological Research 49, no. 1 (April 26, 2021): 68–92. http://dx.doi.org/10.29006/1564-2291.jor-2021.49(1).5.
Full textAbstract:
The Black Sea coast of the Caucasus has the most valuable economic resources, primarily recreational. In addition, coastal geosystems are a key element of the region's natural biodiversity. This paper provides an overview of the current state of abrasion and accumulative shores of the Black Sea between c. Panagia and r. Tuapse. Materials of long-term monitoring observations, satellite imagery, the results of mathematical modeling, literary and archival sources are used. The most important natural processes that determine the development of the coasts are considered and the analysis of their dynamics due to climate changes and increasing anthropogenic load is performed. It is shown that the significant differences between individual sections of the north-western part of the Caucasus Black Sea coast in terms of natural features and the degree of their economic development are determined by a variety of natural and socio-economic factors. Abrasion coasts with high cliffs, where denudation processes are the main source of solid material to the coastal zone, predominate. The general deficit of beach-forming sediments is a characteristic feature, as a result of which there is no single alongshore sediment flux. Small lithodynamic systems bounded by capes are characteristic of the coast under consideration. The movement of sediments has the character of reverse migrations and the beach is formed in the concavities of the coast. The only large accumulative form is the Anapa bay-bar, in the formation of which the alluvium of the Kuban River played an important role. Predominance of erosion processes over accumulative ones is the geomorphological feature of the Caucasus Black Sea coasts, therefore the main problems of environmental management are the protection of the coast from storm waves and shortage of beaches. Creation of complexes of artificial beaches with beach-retaining structures, that simultaneously perform coastal protection and recreational functions, is the most promising solution to these problems in the 21st century. It is noted that the conditions of the considered coastal section are favorable for the use of local coastal protection.
33
Ishikawa, Toshinori, Takaaki Uda, Jun-ichi Hosokawa, and Toshiro San-nami. "RECOVERY OF SANDY BEACH AFTER TYPHOON WAVES - CASE STUDY ON CHIGASAKI COAST." Coastal Engineering Proceedings, no. 36v (December 31, 2020): 42. http://dx.doi.org/10.9753/icce.v36v.papers.42.
Full textAbstract:
Beach topography quickly changes in response to the action of storm waves, resulting in erosion of the foreshore with accretion under a calm wave condition after a storm. These seasonal beach changes may occur on beaches with protective measures or artificial beaches produced by beach nourishment. On these beaches, the shore protection function of a sandy beach is reduced when a trough is formed immediately offshore of the shoreline and the foreshore slope increases, indicating the importance of the study on topographic changes. Moreover, the time required for a beach recovery in response to wave conditions has not been sufficiently studied, along with the 3-D topographic changes associated with beach cycles. In this study, we aim to investigate these issues using the Narrow Multi-Beam survey data, wave data, and seabed materials data, taking the Chigasaki coast as an example. It was found that a seabed shallower than 2 and 3 m depths was eroded by rapid offshore sand transport during a storm event with the deposition of sand in a zone between 3 and 5 m depths, and then the beach recovered within 1-2 years after the storm. It was also confirmed that a bar and trough disappeared in 1-2 months under the conditions of HE = 0.5 m, TE = 8 s, and H/L = 0.005 when the crown depth of the bar was smaller than approximately 2 m. Thus, the topography after the storm waves recovers within several months or 1-2 years depending on wave conditions and the crown depth of the bar.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/W_P_3p_xd8U
34
Ichsan, Ilyas, and Abdul Haris Suleman. "Analisis Perencanaan Break Water Dalam Penanganan Sedimentasi Pantai Di Desa Botubarani." Gorontalo Journal of Infrastructure and Science Engineering 1, no. 1 (April 1, 2018): 82. http://dx.doi.org/10.32662/gojise.v1i1.158.
Full textAbstract:
Botubarani Beach is a coastal tourist attraction that has activities that can stimulate economic growth for people who are on the coast. Research and identification of the handling of natural phenomena in the shoreline is needed to provide the right handling solution in order to avoid increasing the level of more severe damage. The purpose of this study is to analyze and plan the types and dimensions of the right coastal protection building at Botubarani Beach. Beach buildings are used to protect the coast against damage caused by wave and current attacks. Coastal buildings are classified into three groups according to their function, ie construction constructed on shore and parallel to the shoreline (revetment), constructed on a straight coastal and coastal (groin and jetty) constructions constructed offshore and approximately parallel to the coastline (breakwater). The results of data analysis and calculation found that the building that will be used to handle sedimentation in Botubarani Beach is a break water building with the type of building that is rubble mount. Plate water level elevation is 1,694 m and for selected tetrapod protected layer.
35
Clarke, Amy, Stuart King, Andrew Leach, and Wouter Van Acker. "Can’t touch this." Architectural Research Quarterly 23, no. 1 (March 2019): 63–72. http://dx.doi.org/10.1017/s1359135519000058.
Full textAbstract:
Australia’s laid-back, sun-drenched beach lifestyle has been a celebrated and prominent part of its official popular culture for nigh on a century, and the images and motifs associated with this culture have become hallmarks of the country’s collective identity. Though these representations tend towards stereotype, for many Australians the idea of a summer holiday at the beach is one that is intensely personal and romanticised – its image is not at all urbanised. As Douglas Booth observed, for Australians the beach has become a ‘sanctuary at which to abandon cares – a place to let down one’s hair, remove one’s clothes […] a paradise where one could laze in peace, free from guilt, drifting between the hot sand and the warm sea, and seek romance’.1 Beach holidays became popular in the interwar years of the twentieth century, but the most intense burst of activity – both in touristic promotion and in the development of tourism infrastructure – accompanied the postwar economic boom, when family incomes were able to meet the cost of a car and, increasingly, a cheap block of land by the beach upon which a holiday home could be erected with thrift and haste. In subtropical southeast Queensland, the postwar beach holiday became the hallmark of the state’s burgeoning tourism industry; the state’s southeast coastline in particular benefiting from its warm climate and proximity to the capital, Brisbane. It was here – along the evocatively named Gold Coast (to Brisbane’s south) and Sunshine Coast (to its north) [1] – that many families experienced their first taste of what is now widely celebrated as the beach lifestyle [2]. As one reflection has it: In the era before motels and resorts, a holiday at the Gold and Sunshine coasts usually meant either pitching a tent and camping by the beach or staying in a simple cottage owned by family or friends […] Simplicity, informality, individuality […] were the hallmarks of these humble places.2
36
SANITWONG-NA-AYUTTHAYA, SARINYA, CHERDVONG SAENGSUPAVANICH, EFFI HELMY ARIFFIN, SUWAT BUAYAM, LADDAWAN WIRAMITCHAI, KAMONPOL KAYUNHA, and YAOWALUCK CHARUSEIAM. "COASTAL PROTECTION BY A STEPPED CONCRETE REVETMENT IN THAILAND." JOURNAL OF SUSTAINABILITY SCIENCE AND MANAGEMENT 17, no. 7 (July 31, 2022): 28–45. http://dx.doi.org/10.46754/jssm.2022.07.003.
Full textAbstract:
Protecting an eroding coastline is necessary. This study presents how Thailand is undertaking a revetment project by using the Pra-Ae beach as an excellent example where the stepped concrete revetment was successfully implemented and fundamental coastal engineering data was gathered. Public involvement and a surveys involving homes and homeowners of beachside properties were conducted and it provided indispensable recommendations from the revetment project’s stakeholders. Existing environmental conditions covering various parameters were assessed. The stepped concrete revetment was carefully designed to protect the coast while promoting the destination and revetment as a good getaway, and relaxation spot in a bid to enhance tourism. As the result, the authors were able to study the design of every revetment component. The parapet elevation was +4.2 m from the mean sea level and designed to be a sitting place for tourists to watch sunset. The overtopping discharge was 0.138 cu.m./s/m. The revetment crest was designed for secondary utilisation in activities such as walking and cycling. In this manner, the stepped concrete revetment at the Pra-Ae beach successfully prevents the erosion of the beach and coastline and promotes tourism. This case study affirms the fact that, when carefully and accurately designed, the revetment will not only protect the beach, but also promote local communitywell-being. The belief that the revetment would do more harm than good to the environment and the community is evidemtly not true.
37
Frey, Ashley, James Rosati, III, Kenneth J. Connell, Hans Hanson, and Magnus Larson. "MODELING ALTERNATIVES FOR EROSION CONTROL AT MATAGORDA COUNTY,TEXAS, WITH GENCADE." Coastal Engineering Proceedings 1, no. 33 (December 14, 2012): 97. http://dx.doi.org/10.9753/icce.v33.sediment.97.
Full textAbstract:
Matagorda Peninsula and Sargent Beach, Texas, USA, have experienced some of the highest rates of erosion along the Texas coast. In order to increase protection from tropical events and slow beach habitat erosion, several structural alternatives were studied. These alternatives were modeled with GenCade, a newly developed 1D shoreline change and sand transport model. GenCade was calibrated and validated over the 60 miles of shoreline in Matagorda County. Then separate GenCade grids and simulations were conducted for the structural alternatives at Matagorda Peninsula and Sargent Beach. At Matagorda Peninsula, different groin lengths and spacing between groins were modeled with and without beach fills and mechanical bypassing. The alternatives at Sargent Beach included detached breakwaters, groins, and beach fills. Although the process described in this paper only includes a small part of a more detailed study, these simulations helped lead to a recommendation of the selected alternatives for preliminary engineering design.
38
Eichmanns, Christiane, and Holger Schüttrumpf. "Investigating Changes in Aeolian Sediment Transport at Coastal Dunes and Sand Trapping Fences: A Field Study on the German Coast." Journal of Marine Science and Engineering 8, no. 12 (December 10, 2020): 1012. http://dx.doi.org/10.3390/jmse8121012.
Full textAbstract:
For the restoration and maintenance of beach and dune systems along the coast, knowledge of aeolian sediment transport and its interaction with coastal protection measures is required. As a nature-based solution, sand trapping fences can be an integral part of coastal protection measures initiating foredune development. There are few detailed studies on aeolian sediment transport rates on coastal dunes and sand trapping fences available to date. Thus, in this work, we present the results of field experiments conducted at the beach, coastal dune, and sand trapping fence on the East Frisian island Langeoog. The vertical sediment flux profile was measured by vertical mesh sand traps, and saltiphones measured the instantaneous sediment transport. A meteorological station was set up to obtain wind data. On the beach, dune toe, and dune crest, the stationary wind profile can be described well by the law of the wall. Saturated aeolian sediment transport rates on the beach and dune toe were predicted by widely used empirical models. Between the sand trapping fence, these empirical transport models could not be applied, as no logarithmic wind profile existed. The upwind sediment supply reduced after each brushwood line of the sand trapping fence, thereby, leading to increased deviation from the saturated conditions.
39
Hojan, Marcin, Jacek Tylkowski, and Mirosław Rurek. "Hydrometeorological Conditions for the Occurrence of Aeolian Processes on the Southern Baltic Coast in Poland." Water 10, no. 12 (November 27, 2018): 1745. http://dx.doi.org/10.3390/w10121745.
Full textAbstract:
This article presents the temporal and spatial variability of hydrometeorological conditions conducive aeolian processes on the Southern Baltic coastal zone in Poland. The analysis made use of daily meteorological (wind, temperature, and rainfall) and hydrological (sea level) data from 1961 to 2010. Data for four stations (Świnoujście, Kołobrzeg, Ustka, Hel) were provided by the Institute of Meteorology and Water Management in Warsaw. A time decomposition of hydrometeorological conditions conducive to the initiation and intensification of aeolian processes in the coastal zone was also performed. In addition to their scientific significance, the temporal and spatial conditions for aeolian processes on the Baltic coast of Poland have an essential utilitarian significance. Modern aeolian processes on the Baltic coast limit the development potential of the coastal zone. Aeolian processes have a positive and negative impact on geomorphological transformation of the sea coast. They take part in the reconstruction of the beach and foredunes after storms. In periods between storms, coastal wind is seen to decrease the balance of beach sediments and lowers the beach area. On the other hand, onshore wind favors, among other things, filling of tourist infrastructure and development located at the hinterland of the beach and dunes. Hydrometeorological conditions especially favorable to the intensification of aeolian processes are the main determinants of geomorphological changes in the coastal zone (some of which can be extreme). Temporal and spatial analysis of hydrometeorological conditions conducive to aeolian processes is important for many areas of human activity, especially those concerning protection, management, and development of the coast.
40
Lee, Charles E. "CASE HISTORY OF SHORE PROTECTION AT PRESQUE ISLE PENINSULA, PA." Coastal Engineering Proceedings 1, no. 3 (January 1, 2000): 24. http://dx.doi.org/10.9753/icce.v3.24.
Full textAbstract:
The beach protection aspects rather than the importance to navigation of Presque Isle Peninsula is stressed in this paper, The history of the locality is so extensive that only that which bears on beach protection and the portion deemed pertinent to provide background to the early importance of the site will be related. The three main reasons for protecting Presque Isle Peninsula are as follows: for protection of the natural harbor at Erie, Pennsylvania; for the preservation of the beaches which provide Pennsylvania's only public lakeshore recreational area on Lake Erie; and to prevent destruction of the only land access to the facilities on the peninsula. It is reported that in 1947 over 1,500,000 people visited the 3,200 acre Presque Isle State Park. There are also located on the peninsula installations of the Erie Water Works, the United States Coast Guard and the Pennsylvania State Department of Fisheries.
41
Black, Kerry, and Derick Steinhobel. "Utilising Natural Attributes of Tropical Islands for Beach Protection." Journal of Marine Science and Engineering 9, no. 11 (November 2, 2021): 1208. http://dx.doi.org/10.3390/jmse9111208.
Full textAbstract:
This study reveals the coastal protection benefits of small artificial reefs on tropical islands. A monitored case study involving field and computer modelling investigations, as well as construction of a 95 m long reef and 12,000 m3 of local sand nourishment in a tropical lagoon on the north-east coast of Mauritius, is presented. Monitoring showed that a large salient widened the beach by 50 m in one year. The salient has continued to grow slowly and has remained stable for four years, including during a cyclone. Only a simple and inexpensive artificial reef was needed in the shallow lagoon to rebalance the shoreline wave conditions, because most wave energy was lost by breaking further offshore on the natural reef. With rising sea levels, inshore reefs with nourishment can overcome increases in wave height, wave set-up and wave run-up at the shoreline, which are jointly responsible for erosion and the flooding of homes by erosion and over-topping. To find suitable nourishment sources, regional computer modelling identified the following dominant circulation patterns: currents both coming into the lagoon over the reef crest (driven by breaking wave energy) and exiting via relict river channels or zones of lower waves. Sand for nourishment may be extracted from the exit locations with reduced environmental impact, because net currents are driving sand out of the lagoon system into deeper water. These relict sands have the same grain size as the natural beach and are readily accessible.
42
Coutos, Marie, and François Hacques. "PROTECTION AND IMPROVEMENT OF THE BARRIER BEACH OF FRONTIGNAN (HERAULT, FRANCE)." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 32. http://dx.doi.org/10.9753/icce.v36.risk.32.
Full textAbstract:
Frontignan is located in south of France, along the Mediterranean coast at approximately 20km south of the city of Montpellier. The studied area is 7km long and is characterized by a sand barrier which separates the sea from a large lagoon well known for its ecological interest. In this area, the tourist traffic is significant and is vital for many economic and social activities. The studied area is divided into two main areas: 1) The urbanized area of Frontignan, long of approx. 4.7km, starting from the fish harbor to the Tamaris camping. The marina of Frontignan is located in the middle of this area which is protected by many coastal structures (groynes). In this area the barrier is 100m to 500m wide. 2) The less urban area long of approx. 2.3km.
43
Lerma, Alexandre Nicolae, Julie Billy, Thomas Bulteau, and Cyril Mallet. "Multi-Decadal Seawall-Induced Topo-Bathymetric Perturbations along a Highly Energetic Coast." Journal of Marine Science and Engineering 10, no. 4 (April 6, 2022): 503. http://dx.doi.org/10.3390/jmse10040503.
Full textAbstract:
Seawalls are commonly used worldwide to protect urbanized sea fronts. These alongshore protection structures are often blamed for hydro-sedimentary dynamics perturbations, but without clear and generalizable conclusions on long-term morphodynamic effects. In this paper, evolutions of beaches are studied from 1966 to 2021, comparing the urbanized sea front of Lacanau seaside resort (Aquitaine France) and adjacent natural areas. A large-scale spatiotemporal multisource dataset is used to derivate several indicators and evaluate the characteristics and magnitude of passive and active erosion related to a large riprap seawall at a highly energetic meso–macro tidal coast. The most dramatic manifestation of the presence of the seawall (passive erosion) is the beach lowering and the reduction of beach variability at the seasonal and interannual timescale in front of the seawall. However, recent evolutions are roughly similar at the seawall-backed beach than at the natural sector, indicating no specific active seawall influence on beach erosion or recovery. The perturbations directly attributable to the seawall (active erosion) are limited to temporary end-effect, slight perturbation of outer bar pattern and the setup of a slight platform around the depth of closure. The adverse effects are currently manageable, but they require a new strategy in view of the chronic shoreline retreat at adjacent sectors and the expected effects of climate change.
44
Kabiling, Michael B., Michael E. Trudnak, and Richard Bouchard. "EVALUATION OF SHORELINE STABILIZATION USING A HYBRID SHORELINE MORPHOLOGY MODEL." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 50. http://dx.doi.org/10.9753/icce.v36.sediment.50.
Full textAbstract:
The Fort Pierce Shore Protection Project, located in St. Lucie County, Florida, nourishes a 2.09-km Atlantic Ocean shoreline south of Fort Pierce Inlet on Florida’s east coast. After each beach nourishment, historical measurements indicate the beach fill erodes nonuniformly, with a hotspot along the northernmost 0.7 km requiring nourishment after about two years of normal wave regimes. However, storms can quickly erode the beach fill and require nourishment earlier than the normal two-year interval. Longshore transport carries most of the eroded fill to the south, creating a strong feeder-beach effect. This study evaluated several designs and combinations of coastal structures to produce more uniform erosion throughout the project area and to increase the nourishment interval. The study applied several state-of-the-art numerical models to evaluate the two-dimensional effect of a “coastal structures†alternative on hydrodynamics, waves, sediment transport, and beach morphology.
45
Nair, L. Sheela, V. Sundar, and N. P. Kurian. "Shore Protection for a Placer Deposit Rich Beach of the Southwest Coast of India." International Journal of Ocean and Climate Systems 4, no. 1 (March 2013): 41–61. http://dx.doi.org/10.1260/1759-3131.4.1.41.
Full text
46
Petrov, V. A., and N. A. Yaroslavtsev. "The impact of Sochi – Imeretinsky harbor on the coastal processes (the Black sea)." Геоэкология. Инженерная геология. Гидрогеология. Геокриология, no. 5 (September 20, 2019): 38–47. http://dx.doi.org/10.31857/s0869-78092019538-47.
Full textAbstract:
The impact of the harbor built near the Mzymta river mouth on the pebble sediment transport along the coast and the coastal line transformation is assessed proceeding from the survey data comparison. Sediment accumulation in the wave chamber of the permeable southwestern barrier pier are considered and the possibility of its circumvention by pebble material is estimated. It is shown that the sediments transported along the pier penetrate into the numerous canyon openings and go deeper. As a result of the bottom erosion behind the port, the pebble beach in front of the shore-protective structure protecting the embankment from the waves has disappeared at the 1-km-long coast site, and its erosion continues. The absence of a wave-setting pebble beach poses a threat to the destruction of the coastal protection structure and the embankment.
47
Agarkova-Lyakh, I. V. "Coastal dynamics of the Gulf of Kalamita (Western Crimea)." IOP Conference Series: Earth and Environmental Science 946, no. 1 (December 1, 2021): 012035. http://dx.doi.org/10.1088/1755-1315/946/1/012035.
Full textAbstract:
Abstract The performed research showed that since the first third of the 20th century until today the beach width at various sections of the Gulf of Kalamita has decreased two-to fourfold, and at some of them beaches have totally disappeared. The average coast erosion rate for the last 100 years has been 1.3 m/yr, with the maximum being 7.8 m/yr. These processes are accompanied with depletion of debris on the beach and underwater slope, erosion of bench deposits, and destruction of coastal structures. This is due to deficiency of beach-forming material resulted from intense economic management in the coastal area. Implementation of scientifically and technically sound coastal protection projects is essential to preserve the beaches of the Gulf of Kalamita.
48
Torres-Freyermuth, Alec, Gabriela MedellÃn, Tonatiuh Mendoza, Elena Ojeda, and Paulo Salles. "ON THE ASSESMENT OF DETACHED BREAKWATERS ON A SEA-BREEZE DOMINATED BEACH." Coastal Engineering Proceedings, no. 36 (December 30, 2018): 36. http://dx.doi.org/10.9753/icce.v36.structures.36.
Full textAbstract:
Sandy beaches provide habitat and natural protection to coastal areas against extreme events. Beach erosion is ubiquitous of coastlines around the world and is very important given the implications in the loss of land and infrastructure in coastal areas. This problem is particularly relevant in low-lying coasts, with shallow and extended continental shelves, considering the increasing trends on the frequency, intensity of storms (waves, currents and surges), and the sea level rise due to climate change. Mitigation measures encompass different approaches including soft and hard engineering solutions. The Yucatan coast (Mexico) has experienced beach erosion over the past decades. More recently, detached breakwaters have been constructed to mitigate beach erosion. Thus, we investigate both permeable and impermeable structures performance in this area.
49
Anandan, C., and C. Senthil Kumar. "Investigation of Changes in Beach Morphology due to Coastal Armoring." Energy and Environment Research 11, no. 1 (May 21, 2021): 65. http://dx.doi.org/10.5539/eer.v11n1p65.
Full textAbstract:
The Tsunami, which struck the east coast of India on 26th December 2004, caused huge damage to life, property and environment. Beyond the heavy toll on human lives, it had caused an enormous environmental impact. Kalpakkam located in the south east coast of India is one of the areas affected by the tsunami. At some locations along the coast around Kalpakkam, morphological changes, vegetation loss and fatality were reported. Later, a slew of remedial measures were initiated at Kalpakkam in 2006 and construction of coastal armoring in the form of Tsunami Protection Wall (TPW) of 3.2 km length was one of them. A study was undertaken to assess the impact of this TPW on the surroundings based on periodic measurements of High Water Line (HWL) before and after construction of the wall. Also beach profiles were made at selected locations to observe seasonal changes in sedimentation pattern (i.e. accretion and erosion). As the residential area at Kalpakkam is located between fishing hamlets at northern and southern side, it is necessary to understand the impact of TPW, if any, in the surrounding area and on the fishing hamlets. Towards this assessment, high resolution satellite data such as Quickbird and IKONOS were employed (for the years 2002, 2003, 2009 and 2011) to measure the HWL. In addition, monthly beach profiles were carried out to measure the sedimentation pattern at selected transects with the help of N3 Precision Level survey instrument for the year 2009. The detailed investigations and analysis revealed no significant impact on the beach morphology and sedimentation patterns due to the construction of TPW, within the residential areas as well as at fishing hamlets. The average variations in the position of HWL along the coast was 4.6m and sedimentation changes were in the range of ≈ 0.5m in the berm of backshore region and ≈ 1.7m in the swash zone of the foreshore region all along the study area. No adverse effect is observed and the variations observed are similar to that in an unarmored control beach. The study provides the confidence that multi-dated satellite monitoring together with the profiling of beach would suffice the need for understanding the changes in the beach morphology due to the construction of beach armoring.
50
Alcérreca-Huerta, Juan Carlos, Cesia J. Cruz-Ramírez, Laura R. de Almeida, Valeria Chávez, and Rodolfo Silva. "Interconnections between Coastal Sediments, Hydrodynamics, and Ecosystem Profiles on the Mexican Caribbean Coast." Land 11, no. 4 (April 4, 2022): 524. http://dx.doi.org/10.3390/land11040524.
Full textAbstract:
The interconnections between hydrodynamics, coastal sediments, and ecosystem distribution were analysed for a ~250 km strip on the northern Mexican Caribbean coast. Ecosystems were related to the prevailing and extreme hydrodynamic conditions of two contrasting coastal environments in the study area: Cancun and Puerto Morelos. The results show that the northern Mexican Caribbean coast has fine and medium sands, with grain sizes decreasing generally, from north of Cancun towards the south of the region. Artificial beach nourishments in Cancun have affected the grain size distribution there. On beaches with no reef protection, larger grain sizes (D50 > 0.46 mm) are noted. These beaches are subject to a wide range of wave-induced currents (0.01–0.20 m/s) and have steeper coastal profiles, where sediments, macroalgae and dune-mangrove systems predominate. The coastline with the greatest amount of built infrastructure coincides with beaches unprotected by seagrass beds and coral reefs. Where islands or coral reefs offer protection through less intense hydrodynamic conditions, the beaches have flatter profiles, the dry beach is narrow, current velocities are low (~0.01–0.05 m/s) and sediments are finer (D50 < 0.36 mm). The results offer a science-based description of the interactions between physical processes and the role played by land uses for other tropical coastal ecosystems.