Beach Erosion Arising from Artificial Land Modification

2007 ◽  
Vol 2 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Takaaki Uda ◽  

The cause of beach erosion in Japan is classified into seven types. Of these, examples associated with the formation of wave-shelter zones and decreased fluvial sediment supply were studied, typified by changes in beaches at the Shimobara fishing port and along the Enshu-nada coast caused by decreased fluvial sediment supply from the Tenryu River. Such erosion is closely related to land management and the "sector-by-sector" system in Japan. The prevention of beach erosion thus requires both scientific research and improvement in coastal management through enhancing the public consensus.

2019 ◽  
Author(s):  
Салтанат Дауытбековна Арыстанова ◽  
Курманбек Тажмаханбетович Жантасов ◽  
Жазира Тулжанова Жумадилова ◽  
Орынбасар Акпанович Алшынбаев ◽  
Гулаш Абдуллаева Бекбулатова ◽  
...  

Organizers OEAPS Inc. (OPEN EUROPEAN ACADEMY OF PUBLIC SCIENCES) & ISA (International Scientific Association). The accepted materials are placed in the conference proceedings collection, the materials will be indexed by RISC / Elibrary, CrossRef, Google Scholar, LawArXiv, posted by Stanford University Libraries, Index Copernicus, OpenAir, assigned to ISBN.The conference is a major international forum for analyzing and discussing trends and approaches in research in the field of basic science and applied research. We provide a platform for discussions on innovative, theoretical and empirical research.The form of the conference: in absentia, without specifying the form in the collection of articles.Working languages: Russian, EnglishFollowing the conference, a collection of articles will be published within 10 days, which is posted on the publisher's website and is registered in the Elibrary Scientific Electronic Library . ru . The collection is assigned library indexes UDC, BBK and international standard book number ISBN.In Elibrary . ru articles posted in the public domain.Doctors and candidates of science, scientists, specialists of various profiles and directions, applicants for academic degrees, teachers, graduate students, undergraduates and students are invited to participate in the conference.


Shore & Beach ◽  
2020 ◽  
pp. 34-43
Author(s):  
Nicole Elko ◽  
Tiffany Roberts Briggs

In partnership with the U.S. Geological Survey Coastal and Marine Hazards and Resources Program (USGS CMHRP) and the U.S. Coastal Research Program (USCRP), the American Shore and Beach Preservation Association (ASBPA) has identified coastal stakeholders’ top coastal management challenges. Informed by two annual surveys, a multiple-choice online poll was conducted in 2019 to evaluate stakeholders’ most pressing problems and needs, including those they felt most ill-equipped to deal with in their day-to-day duties and which tools they most need to address these challenges. The survey also explored where users find technical information and what is missing. From these results, USGS CMHRP, USCRP, ASBPA, and other partners aim to identify research needs that will inform appropriate investments in useful science, tools, and resources to address today’s most pressing coastal challenges. The 15-question survey yielded 134 complete responses with an 80% completion rate from coastal stakeholders such as local community representatives and their industry consultants, state and federal agency representatives, and academics. Respondents from the East, Gulf, West, and Great Lakes coasts, as well as Alaska and Hawaii, were represented. Overall, the prioritized coastal management challenges identified by the survey were: Deteriorating ecosystems leading to reduced (environmental, recreational, economic, storm buffer) functionality, Increasing storminess due to climate change (i.e. more frequent and intense impacts), Coastal flooding, both Sea level rise and associated flooding (e.g. nuisance flooding, king tides), and Combined effects of rainfall and surge on urban flooding (i.e. episodic, short-term), Chronic beach erosion (i.e. high/increasing long-term erosion rates), and Coastal water quality, including harmful algal blooms (e.g. red tide, sargassum). A careful, systematic, and interdisciplinary approach should direct efforts to identify specific research needed to tackle these challenges. A notable shift in priorities from erosion to water-related challenges was recorded from respondents with organizations initially formed for beachfront management. In addition, affiliation-specific and regional responses varied, such as Floridians concern more with harmful algal blooms than any other human and ecosystem health related challenge. The most common need for additional coastal management tools and strategies related to adaptive coastal management to maintain community resilience and continuous storm barriers (dunes, structures), as the top long-term and extreme event needs, respectively. In response to questions about missing information that agencies can provide, respondents frequently mentioned up-to-date data on coastal systems and solutions to challenges as more important than additional tools.


2014 ◽  
Vol 388 (1) ◽  
pp. 247-280 ◽  
Author(s):  
Christopher J. Hein ◽  
D. M. FitzGerald ◽  
I. V. Buynevich ◽  
S. Van Heteren ◽  
J. T. Kelley

2021 ◽  
Author(s):  
Frances E. Dunn ◽  
Philip S. J. Minderhoud

<p>As one of the largest deltas in the world, the Mekong delta is home to over 17 million people and supports internationally important agriculture. Recently deposited sediment compacts and causes subsidence in deltas, so they require regular sediment input to maintain elevation relative to sea level. These processes are complicated by human activities, which prevent sediment deposition indirectly through reducing fluvial sediment supply and directly through the construction of flood defence infrastructure on deltas, impeding floods which deliver sediment to the land. Additionally, anthropogenic activities increase the rate of subsidence through the extraction of groundwater and other land-use practices.</p><p>This research shows the potential for fluvial sediment delivery to compensate for sea-level rise and subsidence in the Mekong delta over the 21st century. We use detailed elevation data and subsidence scenarios in combination with regional sea-level rise and fluvial sediment flux projections to quantify the potential for maintaining elevation relative to sea level in the Mekong delta. We present four examples of localised sedimentation scenarios in specific areas, for which we quantified the potential effectiveness of fluvial sediment deposition for offsetting relative sea-level rise. The presented sediment-based adaptation strategies are complicated by existing land use, therefore a change in water and sediment management is required to effectively use natural resources and employ these adaptation methods. The presented approach could be an exemplar to assess sedimentation strategy feasibility in other delta systems worldwide that are under threat from sea-level rise.</p>


1995 ◽  
Vol 19 (4) ◽  
pp. 500-519 ◽  
Author(s):  
A.P. Nicholas ◽  
P.J. Ashworth ◽  
M.J. Kirkby ◽  
M.G. Macklin ◽  
T. Murray

Variations in fluvial sediment transport rates and storage volumes have been described previously as sediment waves or pulses. These features have been identified over a wide range of temporal and spatial scales and have been categorized using existing bedform classifications. Here we describe the factors controlling the generation and propagation of what we term sediment slugs. These can be defined as bodies of clastic material associated with disequilibrium conditions in fluvial systems over time periods above the event scale. Slugs range in magnitude from unit bars (Smith, 1974) up to sedimentary features generated by basin-scale sediment supply disturbances (Trimble, 1981). At lower slug magnitudes, perturbations in sediment transport are generated by local riverbank and/or bed erosion. Larger-scale features result from the occurrence of rare high- magnitude geomorphic events, and the impacts on water and sediment production of tectonics, glaciation, climate change and anthropogenic influences. Simple sediment routing functions are presented which may be used to describe the propagation of sediment slugs in fluvial systems. Attention is drawn to components of the fluvial system where future research is urgently required to improve our quantitative understanding of drainage-basin sediment dynamics.


2020 ◽  
Vol 17 ◽  
pp. 15-19
Author(s):  
Bishnu Bahadur Khatri

Peer review in scholarly communication and scientific publishing, in one form or another, has always been regarded as crucial to the reputation and reliability of scientific research. In the growing interest of scholarly research and publication, this paper tries to discuss about peer review process and its different types to communicate the early career researchers and academics.This paper has used the published and unpublished documents for information collection. It reveals that peer review places the reviewer, with the author, at the heart of scientific publishing. It is the system used to assess the quality of scientific research before it is published. Therefore, it concludes that peer review is used to advancing and testing scientific knowledgeas a quality control mechanism forscientists, publishers and the public.


2021 ◽  
Author(s):  
Glenn Sharman ◽  
et al.

Sample summary, LA-ICP-MS data tables, sources of Cretaceous-Paleogene forearc data, Peninsular Ranges batholith zircon U-Pb ages, mixture modeling results, and U-Pb analytical methodology.<br>


2019 ◽  
pp. 103-126
Author(s):  
Stephen E. Darby ◽  
Kwasi Appeaning Addo ◽  
Sugata Hazra ◽  
Md. Munsur Rahman ◽  
Robert J. Nicholls

2021 ◽  
Author(s):  
Glenn Sharman ◽  
et al.

Sample summary, LA-ICP-MS data tables, sources of Cretaceous-Paleogene forearc data, Peninsular Ranges batholith zircon U-Pb ages, mixture modeling results, and U-Pb analytical methodology.<br>


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