Relevant bibliographies by topics / Coastal foredune

Academic literature on the topic 'Coastal foredune'

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Published: 14 March 2023

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Journal articles on the topic "Coastal foredune"

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Zarnetske, Phoebe L., Peter Ruggiero, Eric W. Seabloom, and Sally D. Hacker. "Coastal foredune evolution: the relative influence of vegetation and sand supply in the US Pacific Northwest." Journal of The Royal Society Interface 12, no. 106 (May 2015): 20150017. http://dx.doi.org/10.1098/rsif.2015.0017.

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Biophysical feedbacks between vegetation and sediment are important for forming and modifying landscape features and their ecosystem services. These feedbacks are especially important where landscape features differ in their provision of ecosystem services. For example, the shape of coastal foredunes, a product of both physical and biological forces, determines their ability to protect communities from rising seas and changing patterns of storminess. Here we assessed how sand supply and changes in vegetation over interannual (3 year) and decadal (21 year) scales influenced foredune shape along 100 km of coastline in the US Pacific Northwest. Across 21 years, vegetation switched from one congeneric non-native beachgrass to another ( Ammophila arenaria to A. breviligulata ) while sand supply rates were positive. At interannual timescales, sand supply rates explained the majority of change in foredune height (64–69%) and width (56–80%). However, at decadal scales, change in vegetation explained the majority of the change in foredune width (62–68%), whereas sand supply rates explained most of the change in foredune height (88–90%). In areas with lower shoreline change rates (±2 m yr −1 ), the change in vegetation explained the majority of decadal changes in foredune width (56–57%) and height (59–76%). Foredune shape directly impacts coastal protection, thus our findings are pertinent to coastal management given pressures of development and climate change.
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Donker, Jasper, Marcel van Maarseveen, and Gerben Ruessink. "Spatio-Temporal Variations in Foredune Dynamics Determined with Mobile Laser Scanning." Journal of Marine Science and Engineering 6, no. 4 (October 30, 2018): 126. http://dx.doi.org/10.3390/jmse6040126.

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Coastal foredunes are highly dynamic landforms because of rapid erosion by waves and currents during storm surges in combination with gradual accretion by aeolian transport during more quiescent conditions. While our knowledge into the mechanisms behind foredune erosion have reached considerable maturity, this is not the case for foredune growth. High resolution spatio-temporal data sets of beach and foredune topography, which are needed to increase our understanding of mechanisms behind aeolian transport in coastal environments and to develop predictive dune-accretion models, are scarce. Here we aim to illustrate that repeated Mobile Laser Scanning (MLS) surveys provide an accurate and robust method to study detailed changes in dune volume on the timescales of months to years. An MLS system attached to an inertial navigation system with RTK-GPS (INS-GPS) was used to carry out 13 surveys along a 3.5-km Dutch beach over a 2.5-year period. The height observations were post-processed and averaged into 1 × 1 m Digital Elevation Models (DEMs). Comparison with airborne LiDAR and RTK-GPS data revealed that the obtained DEMs were accurate and robust up to a height of 15 m in the foredune above which dense vegetation hampers the MLS to see the sand surface. Estimates of dune volume change of the lower 13 m of the foredune have an uncertainty of about 0.25 m 3 /m. Time series of dune volume change show that at our study site the foredune accretes throughout the year at similar rates (10 m 3 /m/year), while marine erosion is obviously confined to storm surges. Foredune accretion and erosion vary spatially, which can, in part, be related to variations in beach width.
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Psuty, Norbert P. "An application of science to the management of coastal dunes along the Atlantic coast of the U.S.A." Proceedings of the Royal Society of Edinburgh. Section B. Biological Sciences 96 (1989): 289–307. http://dx.doi.org/10.1017/s0269727000010988.

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SynopsisCoastal foredune management begins with an understanding of and appreciation for the dynamics of dune creation, development and decay. Sediment exchange between the dune and beach components of the total dune–beach profile is a necessary element in foredune creation and development. Foredune development is enhanced by a slightly negative total dune–beach budget. Foredune crestlines display alongshore periodicities in displacement that are related to beach processes. Effective management is based on the dimensions of the alongshore foredune variations and the retention of sediment in the migrating foredune system.
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Pickart, Andrea J. "Ammophila Invasion Ecology and Dune Restoration on the West Coast of North America." Diversity 13, no. 12 (November 30, 2021): 629. http://dx.doi.org/10.3390/d13120629.

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The invasive ecosystem engineer Ammophila arenaria, native to Europe, was first introduced to California (USA) in 1896. More than a century later, it has come to dominate coastal foredune vegetation on the west coast of North America to the near exclusion of native species. A. arenaria builds a narrow, steep, peaked, and densely vegetated foredune, in contrast to the broad, more sparsely vegetated foredunes built by the native Elymus mollis. As such, it has modified dune processes by fixing the foredune and disrupting exchange of sediment between the beach, foredune, and dunefield. In the 1930s the congener A. breviligulata, native to the east coast and Great Lakes USA, was first introduced to Oregon, and has been displacing A. arenaria in southern Washington. Ammophila spp. have drastically reduced biodiversity, outcompeting native plant species, and displacing both invertebrate and vertebrate species. Restoration of west coast dunes through the removal of Ammophila began in the 1990s. Methods usually consist of one or a combination of manual digging, burning/herbicides, or excavation with heavy equipment. There are benefits and disadvantages to each method. Manual removal has proven most effective at restoring foredune form and process but is expensive. Excavation and herbicides may result in the loss of foredune morphology. Managers must articulate goals carefully before selecting restoration methods.
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Davidson, Samuel G., Patrick A. Hesp, and Graziela Miot da Silva. "Controls on dune scarping." Progress in Physical Geography: Earth and Environment 44, no. 6 (July 21, 2020): 923–47. http://dx.doi.org/10.1177/0309133320932880.

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The controls that affect the degree of spatio-temporal change to foredunes following scarping are reviewed herein. As sea-levels rises and climate changes, dune scarping will become more common. Thus, it is critical to understand what factors contribute to the magnitude of scarping, and what effect this has on dune systems to better manage coastal erosion into the future. Scarping occurs when foredunes are partially eroded by waves, generally during periods of high water level. The controls on the degree and magnitude of scarping examined include water level, foredune vegetation cover and species present, plant root mass, height and volume of the foredune, the original foredune morphology, surfzone–beach type, and compaction of sediment. Water-level height and duration of high water is the most significant control as it determines the elevation at which wave action can erode the dune and, therefore, the extent of scarping and dune volumetric loss. Higher plant density, greater rooting depth, high root mass, and greater compaction aid in reducing the degree of scaping. The presence of large woody debris and wrack may also influence the degree of scarping. The effects scarping has on the morphology of a foredune after the initial erosion event can range from small changes (e.g. minor, small scarps and slight slumping), to moderate changes such as the foredune translating landwards, to large change such as the transition of an entire dune system into a new transgressive dunefield phase. A new model summarising the key controls and their relationship/significance to the magnitude and extent of scarping is presented.
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Kilibarda, Zoran, and Vesna Kilibarda. "Foredune and Beach Dynamics on the Southern Shores of Lake Michigan during Recent High Water Levels." Geosciences 12, no. 4 (March 28, 2022): 151. http://dx.doi.org/10.3390/geosciences12040151.

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From 18 January 2013 (175.16 m a.s.l.) to 8 September 2020 (177.82 m a.s.l.), Lake Michigan experienced its fastest and highest rise (2.67 m) since 1860, when instrumental measurements began. Extensive foredunes developed since the last high lake levels began eroding in 1997 at fast rates. This study focuses on coastal morphodynamics along the 800 m coast within the central Indiana Dunes State Park on Lake Michigan’s southern shores during this time. Severe foredune erosion, in terms of total horizontal dune loss and total volume of eroded sand, occurred unevenly over the three-year period, both temporally, during a single storm, a season, a year, or three years, and spatially, in the eastern, central, and western study areas. Late autumn storms accounted for most foredune erosion in 2018 and 2019, when foredune scarps retreated up to 4 and 9 m, respectively. Erosion was highest in the updrift eastern study area, where about 8 m3/m of sand was removed in 2018 and about 19 m3/m of sand was removed in 2019. The lack of shelf ice along the shore, rising lake levels, and convective storms that triggered meteotsunamis changed the foredune erosion pattern in 2020. Erosion became most vigorous in the downdrift central (13 m scarp retreat) and western (11 m scarp retreat) study areas. The average volume of eroded sand (21.5 m3/m) was more than double that of 2019 (8 m3/m), and almost quadruple the 2018 volume (5.5 m3/m). After foredune erosion events, the beach rapidly recovered and maintained its width as the shoreline migrated landward. On many occasions following these severe erosion events the dry portion of the beach aggraded and absorbed significant sand amounts removed from the foredunes. The remaining sand was transferred to the surf zone, where it changed the sand bar morphology and led to their coalescence and flattening.
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Cohn, Nicholas, Bas Hoonhout, Evan Goldstein, Sierd De Vries, Laura Moore, Orencio Durán Vinent, and Peter Ruggiero. "Exploring Marine and Aeolian Controls on Coastal Foredune Growth Using a Coupled Numerical Model." Journal of Marine Science and Engineering 7, no. 1 (January 11, 2019): 13. http://dx.doi.org/10.3390/jmse7010013.

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Coastal landscape change represents aggregated sediment transport gradients from spatially and temporally variable marine and aeolian forces. Numerous tools exist that independently simulate subaqueous and subaerial coastal profile change in response to these physical forces on a range of time scales. In this capacity, coastal foredunes have been treated primarily as wind-driven features. However, there are several marine controls on coastal foredune growth, such as sediment supply and moisture effects on aeolian processes. To improve understanding of interactions across the land-sea interface, here the development of the new Windsurf-coupled numerical modeling framework is presented. Windsurf couples standalone subaqueous and subaerial coastal change models to simulate the co-evolution of the coastal zone in response to both marine and aeolian processes. Windsurf is applied to a progradational, dissipative coastal system in Washington, USA, demonstrating the ability of the model framework to simulate sediment exchanges between the nearshore, beach, and dune for a one-year period. Windsurf simulations generally reproduce observed cycles of seasonal beach progradation and retreat, as well as dune growth, with reasonable skill. Exploratory model simulations are used to further explore the implications of environmental forcing variability on annual-scale coastal profile evolution. The findings of this work support the hypothesis that there are both direct and indirect oceanographic and meteorological controls on coastal foredune progradation, with this new modeling tool providing a new means of exploring complex morphodynamic feedback mechanisms.
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Mickey, Rangley C., and Davina L. Passeri. "A Database of Topo-Bathy Cross-Shore Profiles and Characteristics for U.S. Atlantic and Gulf of Mexico Sandy Coastlines." Data 7, no. 7 (July 6, 2022): 92. http://dx.doi.org/10.3390/data7070092.

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A database of seamless topographic and bathymetric cross-shore profiles along with metrics of the associated morphological characteristics based on the latest available lidar data ranging from 2011–2020 and bathymetry from the Continuously Updated Digital Elevation Model was developed for U.S. Atlantic and Gulf of Mexico open-ocean sandy coastlines. Cross-shore resolution ranges from 2.5 m for topographic and nearshore portions to 10 m for offshore portions. Topographic morphological characteristics include: foredune crest elevation, foredune toe elevation, foredune width, foredune volume, foredune relative height, beach width, beach volume, beach slope, and nearshore slope. This database was developed to serve as inputs for current and future morphological modeling studies aimed at providing real-time estimates of coastal change magnitudes resulting from imminent tropical storm and hurricane landfall. Beyond this need for model inputs, the database of cross-shore profiles and characteristic metrics could serve as a tool for coastal scientists to visualize and to analyze varying local, regional, and national variations in coastal morphology for varying types of studies and projects related to Atlantic and Gulf of Mexico sandy coastline environments.
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Goldstein, Evan B., Laura J. Moore, and Orencio Durán Vinent. "Lateral vegetation growth rates exert control on coastal foredune hummockiness and coalescing time." Earth Surface Dynamics 5, no. 3 (August 8, 2017): 417–27. http://dx.doi.org/10.5194/esurf-5-417-2017.

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Abstract. Coastal foredunes form along sandy, low-sloped coastlines and range in shape from continuous dune ridges to hummocky features, which are characterized by alongshore-variable dune crest elevations. Initially scattered dune-building plants and species that grow slowly in the lateral direction have been implicated as a cause of foredune hummockiness. Our goal in this work is to explore how the initial configuration of vegetation and vegetation growth characteristics control the development of hummocky coastal dunes including the maximum hummockiness of a given dune field. We find that given sufficient time and absent external forcing, hummocky foredunes coalesce to form continuous dune ridges. Model results yield a predictive rule for the timescale of coalescing and the height of the coalesced dune that depends on initial plant dispersal and two parameters that control the lateral and vertical growth of vegetation, respectively. Our findings agree with previous observational and conceptual work – whether or not hummockiness will be maintained depends on the timescale of coalescing relative to the recurrence interval of high-water events that reset dune building in low areas between hummocks. Additionally, our model reproduces the observed tendency for foredunes to be hummocky along the southeast coast of the US where lateral vegetation growth rates are slower and thus coalescing times are likely longer.
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Valdesolo, Tommaso, Silvia Del Vecchio, and Gabriella Buffa. "Patterns of Seed Dispersal in Coastal Dune Plant Communities." Sustainability 14, no. 17 (September 2, 2022): 10983. http://dx.doi.org/10.3390/su141710983.

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Seed dispersal is a key determinant of species distribution, although it is still unclear how it contributes to species assembly in plant communities. We linked patterns of seed dispersal to coexisting species to investigate the role of dispersal in the species assembly process. We focused on 19 species coexisting in a foredune plant community, classified as “foredune foundation species”, “semi-fixed dune species,” and “alien species”. The number of seeds dispersed by the 19 species was monitored monthly in 25 plots for 12 months. Then we compared both dispersal strategies and dispersal phenology among the species. Foredune foundation species, species of the semi-fixed dune, and alien species used the same dispersal strategies, with the exception of hemerochory, which was prevalently used by alien species. The three groups of species differentiated the dispersal season: semi-fixed dune species and alien species were early and late dispersers, respectively (spring vs. late summer), while foredune foundation species dispersed seeds in summer. Seasonal differentiation in seed dispersal may play a more important role in the species assembly process than dispersal vectors. Shifts in seasonality due to climate change may influence the timing of seed dispersal and provide species with different colonization opportunities.
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Dissertations / Theses on the topic "Coastal foredune"

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Knevel, Irma Cornelia. "The life history of selected coastal foredune species of South Africa." Thesis, Rhodes University, 2002. http://hdl.handle.net/10962/d1003776.

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South African dune fields are severely threatened by human expansion and in the long run the stabilisation of many dunes will be necessary. The alien grass Ammophila arenaria is the most important drift sand stabiliser at present in South Africa. Although not invasive, the current impact of A. arenaria on the dune systems of South Africa is considerable, and thus the stabilising benefit of the grass seemed to may be outweighed by its negative consequences. It is therefore preferable to use indigenous sand stabilising species. In order to define guidelines for the application of indigenous plants for stabilisation, their autecology should be studied first to enhance the chance of successful stabilisation results. The main aim of the present thesis was to gather information on the life history processes of selected indigenous, sand stabilising foredune species. To investigate the growth of foredune pioneer species, the common pioneer Scaevola plumieri was followed over a three-year period to determine the growth season and leaf phenology. Soil-borne pathogens are known to influence the growth and vegetation dynamics of foredune species. To examine this effect on the South African foredunes the rhizosphere soil and the roots of several species were studied. To test the effect of the nematode fauna on succeeding plant species a transplantation experiment was carried out. The seed stage is the only life-cycle stage that can survive unfavourable conditions. Therefore, the seed ecology of several foredune species was studied extensively to determine the reproductive season, the seed production, the fate of seeds after shedding (germination, seawater dispersal), germination requirements and seed bank strategy. Seeds of the species Arctotheca populifolia, Ipomoea pes-caprae, Myrica cordifolia, and Scaevola plumieri were subjected to germination trials, field observations on seedling survival, and scarification and stratification experiments. This was done to obtain information about the germination requirements and to determine the reproductive season and growth season. The seed bank strategy of the foredune species, as well as the seed bank density, was determined by extensive sampling along the Cape coast. The species S. plumieri thrived under sand accretion situations, which makes it a good candidate for stabilisation purposes. The growth of S. plumieri was seasonal, with the highest leaf production during spring and summer. The stem position on the foredune had a strong effect on the overall performance of S. plumieri , with the stems situated on the landward face of the foredune showing higher leaf and seed production. Theiii nematode survey of soil and roots of several foredune species showed that all plant species featured a specific nematode fauna in the rhizosphere soil and the roots. The specific nematode fauna affected the growth of foreign plant species in the transplantation experiment, resulting in a lower root and/or shoot biomass production. Most of the foredune species produce seeds from spring to late summer. For S. plumieri the position of the stem on the dunes, as well as the predation of unripe seeds affected the number of seeds produced. The highest production was found for the landward faced stems. The S. plumieri seeds were able to float on seawater for at least three months without losing viability, as was observed for seeds of I. pes-caprae. The seeds of M. cordifolia, however, sank after a few days, but their viability was not affected. The rhizome fragments of A. arenaria and S. virginicus floated for 120 days, whereas the fragments of E. villosa sunk after one day. The viability of S. virginicus fragments was affected by the duration in seawater by an increase in sprouting time. The seeds of all species tested germinated readily under controlled conditions, except S. plumieri seeds which required a long lag-phase before germination. In the field the seeds of A. populifolia, I. pes-caprae and S. plumieri germinated, producing many seedlings. Only the seedlings of A. populifolia and S. plumieri survived. Of the species found in the foredunes 57% was represented in the soil seed bank. For most species, the seeds that were found in the seed bank showed viability of at least 40%. Many of the seeds found were older than one year, suggesting a short-term persistent seed bank. The present study is a start in filling the gap in information on dune pioneer and foredune species. The conclusion was that in general all species in the present study were easy to grow under controlled conditions, and thus could be used for stabilisation purposes. When the more rapidly growing pioneer species are planted in combination with succeeding foredune species, a functional and aesthetic ecosystem could be created.
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Rains, Bradley Jacob. "Effect of Barrier Height on Magnitude and Character of Hurricane Harvey Washover Fans, Matagorda Peninsula, TX." Thesis, University of North Texas, 2020. https://digital.library.unt.edu/ark:/67531/metadc1707228/.

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This study uses topographic profiles, washover fan volumes, and shoreline retreat rates to explore relationships between barrier types and Hurricane Harvey storm washover sedimentation. Pre- and post-Hurricane Harvey topographic profiles were created on 15 transects using Bare Earth LiDAR (2016) and surveyed elevations (2019). Depth and area of washover fan measurements were collected to estimate washover fan volumes. An inverse relationship was found between washover fan volume and pre- and post-storm barrier heights. Based on the topographic profiles, one section of shoreline had a scarp up to 3m high which blocked overwash, but appears to have increased shoreline erosion. In contrast, a low-lying section of shoreline generated relatively large washover fans, but experienced less shoreline retreat. Shoreline retreat was further quantified between 2014 and 2019 using Google Earth Imagery from 2014, 2016, 2017, and 2019 to track migration of the shoreline. The entire shoreline in the study area is undergoing relatively rapid retreat, but the results suggest that Hurricane Harvey increased erosional rates. The Colorado River Jetty borders the study area and may have acted as an anthropogenic barrier, likely reducing storm surge energy and contributing to marsh aggradation on transects in its close proximity. The study findings indicate that the identification and incorporation of other variables that influence washover magnitude would further the understanding of this complex natural system. The research results provide valuable information on the interaction of hurricane storm surge with natural and anthropogenic barriers, beach and dune erosion, and marsh aggradation along the coast of Texas.
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Bitencourt, Volney Junior Borges. "Geomorfologia e arquitetura deposicional de uma planície de cordões litorâneos lacustre, litoral norte do RS - Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2015. http://hdl.handle.net/10183/114396.

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Cordões litorâneos regressivos arenosos do tipo praia (beach ridge) e do tipo duna frontal (foredune ridge) são feições morfológicas comuns em costas deposicionais com abundância de sedimento. No presente estudo, a morfologia superficial, estratigrafia e a origem de uma planície de cordões ocorrentes na Lagoa dos Quadros, litoral norte do Rio Grande do Sul, são investigadas. Abordagens em superfície através de análises de fotografia aéreas, análises de imagens de satélite e altimetria de detalhe, em junção com dados em subsuperfície oriundos de perfilagens geofísica com uso de GPR e dados sedimentológicos provenientes de testemunhos de sondagens rasos proporcionaram elucidar as fáceis que compõem a arquitetura deposicional, bem como especificar as características geométricas superficiais dos cordões. Datações por 14C permitiram estimar o estágio do início do desenvolvimento da planície de cordões, e a modelagem de ondas e análise de ventos propiciaram inferir as condições fluidodinâmicas envolvidas em sua gênese. A planície de cordões é composta por cordões de praia e cordões de duna frontal, ou seja, uma barreira complexa. Esses cordões são o resultado do desenvolvimento de uma sequência regressiva sobre uma fácies basal de fundo (lagunar). Essa sequência regressiva é composta por depósitos de antepraia, de pós-praia/face de praia, dunas frontais e depósitos de leque de sobrelavagem. A fácies basal de fundo lagunar registra a fase de agradação e progradação da fácies de fundo lagunar do sistema lacustre, ocorrida entre 7047 ± 197 ka e 6230 ± 122 ka. A planície é composta por 20 cordões contínuos e semi-contínuos, de baixa amplitude e espaçados de 5 a 50 m. A migração de campos de dunas transgressivos da barreira de Curumim para dentro da lagoa (entre 7,1 e 5,5 ka) podem ter sido uma importante fonte de areia para a formação da planície de cordões litorâneos regressivos da margem NE da Lagoa dos Quadros.
Beach ridges and foredune ridges are morphological elements largely present in depositional coasts with abundant sediment supply. In this study, the morphology, the stratigraphy and genesis of a strandplain (sand ridge plain) developed at the Quadros lagoon, northern littoral of Rio Grande do Sul, are studied. Photographic surveys, analysis of satellite imagery and topographic surveying plus geophysical data collected with GPR and sedimentological data from drill holes allowed elucidate the facies that make up the depositional architecture and specify the surface geometric characteristics of the ridges. Was possible to estimate the stage of development of the strandplain by 14C dating, and the modeling of waves and analysis of winds pattern have led to infer the fluid dynamic conditions involved in its genesis. The strandplain comprises beach ridges and foredune ridges, which makes a complex barrier. These ridges are results of a regressive sequence developed on a lagoon bottom basal facies. The regressive sequence comprises deposits of shoreface, deposits of beachface/ backshore, foredunes and washover fan. The lagoon bottom basal facies records the aggradation and progradation phases of the lagoon bottom facies of the lagoon system occurred between 7047 ± 197 ka and 6230 ± 122 ka. The strandplain comprises 20 continuous and semi-continuous ridges, low amplitude and spaced 5-50 m. The migration of transgressive dune fields of Curumim barrier to inside the lagoon (between 7.1 and 5.5 ka) may have been an important source of sand to form the strandplain of NE margin of Quadros Lagoon.
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Montreuil, Anne-Lise. "Aeolian dune development and evolution on a macro-tidal coast with a complex wind regime, Lincolnshire coast, UK." Thesis, Loughborough University, 2012. https://dspace.lboro.ac.uk/2134/10609.

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Coastal foredunes are natural aeolian bedforms located landward of the backshore and which interact continuously with the beach. Traditionally, coastal dunes have been associated with onshore winds, however they can be found under more complex wind regimes where offshore winds are common such as the UK East coast, Northern Ireland and New Zealand. This research investigates the ways in which foredune-beach interactions occur under a complex wind regime at a range of overlapping temporal and spatial scales and is innovative in that it explicitly links small-scale processes and morphodynamic behaviour to large scale and long-term dynamics. The study area is the north Lincolnshire coast, East England. Detailed observations of airflow at three locations under varying wind regimes revealed considerable spatial variations in wind velocity and direction, however it was possible to determine a general model of how foredune topography deflected and modified airflow and the resultant geomorphological implications (i.e. erosion and deposition). During direct offshore and onshore winds, airflow remained attached and undeflected; and distinct zones of flow deceleration and acceleration could be identified. During oblique winds airflow was deflected to become more parallel to the dune crest. The field sites used are characterized by a seasonal erosion/accretion cycle and a series of increasingly complex models was developed and tested to determine whether it was possible to predict sand volume changes in the foredune-beach system based on a limited number of variables. The model predictions were tested against detailed digital terrain models at a seasonal timescale. The model prediction that best matched the observed (surveyed) sand volume changes included wind speed, direction, grain size, fetch effect controlled by beach inundation and angle of wind approach was accurate to within ±10% for 18 out of 48 tests at the seasonal scale and 6 out of 12 tests over periods of >5 years. A key variable influencing foredune-beach sand volume is the magnitude and frequency of storm surge events and this was not factored in to the model, but may explain the model-observation mismatch over the medium-term on two occasions. Over the past 120 years historical maps and aerial photographs indicate long-term foredune accretion of approximately 2 m year-1 at the three study sites (1891-2010). At this timescale, rates of coastal foredune accretion reflect the low occurrence of severe storm surges and suggest rapid post-storm recovery. The morphological response of the foredune-beach morphology is considered to be a combination of controlling and forcing factors. Process-responses within the system, associated with nearshore interactions and sediment transfer from the littoral drift, are compiled into a multi-scale morphodynamic model. Important to match appropriate dataset to scale of research question or management plan being explored. In the case of management, long-term records of past activity are necessary to predict the future but also to understand natural responses of system to short-term impact such as storm surge.
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Caruso, Laura <1977&gt. "Coastal foredunes as a resilient factor. The case of the Bevano river mouth natural reserve, Ravenna (Italy)." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/1197/1/Laura_Caruso_Tesi_Dottorato.pdf.

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Caruso, Laura <1977&gt. "Coastal foredunes as a resilient factor. The case of the Bevano river mouth natural reserve, Ravenna (Italy)." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2007. http://amsdottorato.unibo.it/1197/.

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Knevel, Irma Cornelia. "The life history of selected coastal foredune species of South Africa /." 2001. http://eprints.ru.ac.za/29/.

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Rader, Alana Marie. "Foredune morphodynamics and seasonal sediment budget patterns: Humboldt Bay National Wildlife Refuge, Northern California, USA." Thesis, 2017. https://dspace.library.uvic.ca//handle/1828/8510.

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Delivery of sediment to beach-dune complexes along the northern California coast, as elsewhere, is controlled by littoral and aeolian processes governed largely by oceanic and meteorological conditions such as wind speed and direction, wave characteristics and water level fluctuations. Furthermore, patterns of sediment deposition on foredunes are controlled by the zonation, density and physical structure of dominant vegetation assemblages. This study explores the link between varying oceanic, meteorological and ecological patterns and coastal foredune morphodynamics at a site within the Humboldt Bay National Wildlife Refuge (HBNWR) near Arcata, CA, to provide coastal managers a local context of foredune erosion and accretion. At a site within the HBNWR a 75-year north to south alongshore gradient in foredune response was observed during the study period. Foredunes in the north experience seaward progradation (up to +0.51 m a-1) and greater sediment volumes then southern foredunes, characterized by foredune retreat (up to -0.49 m a-1) and larger erosive feature areas. Seasonal signatures of a previously observed bi-directional littoral drift partially inform the interpretation of an alongshore gradient in foredune position. In the summer, wind and wave directions were out of the NNW, combined with north to south littoral drift and significant sediment input into the northern beaches. During the winter, the dominant drift direction was from the south to the north, accompanied by large waves, high water levels and beach erosion. Following a comprehensive morpho-ecological model of foredune evolution (Hesp, 1988; 2002), greater foredune volumes, dense vegetation and seaward progradation are indicative of stage 1 foredunes. Transitioning to the south, lower vegetation densities and seaward retreat support a classification of stage 3 developed foredunes, characterized by shorter, more hummocky morphologies. Meteorological patterns and disturbance to vegetation concurrently influence foredune response and recovery to erosive wind, wave and water level events. As such, seasonal to interannual patterns of foredune morphodynamics may be altered following periods of both environmental and human induced vegetation disturbance (i.e., seasonal phenology, dynamic restoration). At a section of foredune in the northern HBNWR, a dynamic restoration project was implemented with the first stages of vegetation removal occurring in August, 2015. In a year following vegetation disturbance through preliminary stages of restoration an annual sediment budget examination indicates net accretion on the foredune (+0.54 m3 m-2) while net erosion occurred on the beach (-0.38 m3 m-2). At smaller seasonal scales site-wide erosion occurred in the winter due to high-water and wave run-up recorded during intense storms. Summer monitoring reveals site-wide accretion due to beach rebuilding, heightened aeolian activity and an increase in vegetation cover. As such, seasonal sediment budgets that influence longer-term patterns of foredune development may be primarily controlled by the amount of sediment available on the beach for aeolian transport and secondarily by localized presence/absence of vegetation. Results of this study provide insight into the impact of continued coastal disturbance on foredune morphodynamics, around which a framework for future vegetation management projects may be implemented.
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Ryu, Wansang. "A Typology of Foredune Textures: Sand Patches and Climate Controls." Thesis, 2012. http://hdl.handle.net/1969.1/148313.

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Foredunes are formed and developed in association with vegetation. A bare sand area has been viewed as a measure of dune mobility or activity and researched in association with climate controls: particularly wind power, annual mean precipitation, and temperature, expressed in annual mean potential evapotranspiration. There has been no research that utilized the patterns of bare sand areas to classify foredune areas in coastal dune systems and investigated climate controls related to sand patch patterns, or “foredune textures” such as size, number, and distribution of sand patches Four foredune types were classified based on four landscape metrics (PLAND: percentage of bare sand area, PLADJ: proportion of like-adjacencies, NLSI: normalized landscape shape index, and ENN_RA: range of Euclidean nearest neighbor), by applying the concepts and methodologies of landscape ecology. Four climate variables (annual mean precipitation, annual mean potential evapotranspiration, Lancaster’s mobility index, and the standard deviation of annual mean precipitation) were found to affect the foredune types and help in distinguishing one foredune type from another. The amount of bare sand area on coastal foredune areas can be explained by annual mean precipitation (R^2 is 0.52 at the 99 % confidence level), standard deviation of precipitation (R^2 is 0.51 at the 99 % confidence level), and Lancaster’s mobility index (R^2 is 0.37 at the 99 % confidence level) but wind variables such as drift potential do not explain much (R^2 is 0.04 at maximum). This suggests that dune activity or stabilization in coastal dune systems is mainly controlled by vegetation cover, which is in turn affected by precipitation. Foredune textures can be a useful tool to predict foredune types in association with future climate change, and the optimal averaging period of precipitation for each bare sand area was seven years.
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Bundy, Simon C. "The influence of anthropogenic impacts from development and human activity in and around foredune plant communities along a portion of the KwaZulu-Natal coastline." Thesis, 2004. http://hdl.handle.net/10413/3180.

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The impact of development on coastal ecological processes within the coastal zone is often noted as being of ecological concern, due to the suggested destabilization of dune systems as a result of construction activities and post construction impacts such as stormwater disposal, trampling and other artificial influences on, in particular, the plant ecology of the frontal dune systems. Given that the stability of frontal dune systems along the Kwa Zulu Natal north coast is often attributed to the maintenance of vegetation and seral progression on such systems, the identification of changes in dune plant communities that may arise from the influence of proximal or adjacent activities was sought to be identified. Utilising data collected from a number of sites in the Kwa Dukuza Municipal area, the classification and ordination of environmental and botanical species information collated over approximately 6 months was undertaken. The results of this investigation indicate that: Species composition differs in terms of richness and abundance in the three frontal dune vegetation zones sampled. 2 3 4 5 Some species occur in all three zones and others are confined to one zone only. Bearing and the associated influence of wind, the slope and length of the beach, and the steepness ofthe dune face all influence the species composition at any particular site The influence of anthropogenic activities on dune synusia is such that human influence on one species may disrupt associations between species and may result in attenuation or '" reversal of seral movement. Anthropogenic impacts influences species composition at different sites by causing some species to decline abundance or disappear from a site and others to invade or oust established species. In Zone I the species that appears to be most affected by human activity is Gazania rigens, which appears to dominate in sites of high human activity, at the expense of Sporobolus virginicus. In Zone IT under high human activity species such as Cynanchum obtusifolium, Rhoicissus digitata and Sporobolus virginicus dominate, while the woody species Mimusops caffra and Eugenia capensis, as well as the liane Gloriosa superba appear to decline or be ousted from this Zone. In Zone Ill, Asystasia gangetica, is a dominant species where low to moderate human impacts are encountered, while where human impacts are high, species common to Zone I, such as G rigens may become prevalent, ousting A gangetica and grasses such as S virginicus may be ousted by more competitive species such as Stenotaphrum secundatum. It is thus concluded that human activities in and around the frontal dune system may be influential in re-inforcing aeolian impacts on sites with bearings affected by strong prevailing winds.
Thesis (M.Sc.)-University of KwaZulu- Natal,Durban, 2004.
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Book chapters on the topic "Coastal foredune"

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Nordstrom, Karl F., and Nancy L. Jackson. "Foredune Restoration in Urban Settings." In Restoration of Coastal Dunes, 17–31. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33445-0_2.

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Feagin, Rusty. "Foredune Restoration Before and After Hurricanes: Inevitable Destruction, Certain Reconstruction." In Restoration of Coastal Dunes, 93–103. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33445-0_6.

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Psuty, N. P. "The Coastal Foredune: A Morphological Basis for Regional Coastal Dune Development." In Ecological Studies, 11–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2008. http://dx.doi.org/10.1007/978-3-540-74002-5_2.

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Lawlor, Paul, and Derek W. T. Jackson. "A Nature-Based Solution for Coastal Foredune Restoration: The Case Study of Maghery, County Donegal, Ireland." In Human-Nature Interactions, 417–29. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-01980-7_32.

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Significance StatementClimate change has many negative impacts on coastal areas with sea level rise and more frequent and intense storms leading to higher rates of coastal flooding and erosion. Natural coastal features such as beaches and sand dune systems can boost resilience to climate change and provide an effective buffer against negative impacts. This case study from Maghery in Ireland demonstrates how a partnership of stakeholders comprising Local Government, Ulster University and the coastal community implemented a Nature-based Solution to regenerate a coastal foredune system in a Special Area of Conservation. The Nature-based Solution also proved to be a more effective and a more appropriate adaptation response than constructing a hard engineering scheme to protect the coastline.
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Zhang, Wenyan, Ralf Schneider, Jan Harff, Birgit Hünicke, and Peter Fröhle. "Modelling of Medium-Term (Decadal) Coastal Foredune Morphodynamics- Historical Hindcast and Future Scenarios of the Świna Gate Barrier Coast (Southern Baltic Sea)." In Coastline Changes of the Baltic Sea from South to East, 107–35. Cham: Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-49894-2_7.

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Rozema, J., P. Bijwaard, G. Prast, and R. Broekman. "Ecophysiological adaptations of coastal halophytes from foredunes and salt marshes." In Ecology of coastal vegetation, 499–520. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5524-0_54.

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Hesp, Patrick A., and Michael J. Hilton. "Restoration of Foredunes and Transgressive Dunefields: Case Studies from New Zealand." In Restoration of Coastal Dunes, 67–92. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33445-0_5.

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Preoteasa, Luminiţa, and Alfred Vespremeanu-Stroe. "Foredunes Dynamics on the Danube Delta Coast." In Springer Geography, 581–606. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32589-7_25.

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Psuty, Norbert P., and Tanya M. Silveira. "Restoration of Coastal Foredunes, a Geomorphological Perspective: Examples from New York and from New Jersey, USA." In Restoration of Coastal Dunes, 33–47. Berlin, Heidelberg: Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-33445-0_3.

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Maun, M. Anwar. "Plant communities." In The Biology of Coastal Sand Dunes. Oxford University Press, 2009. http://dx.doi.org/10.1093/oso/9780198570356.003.0016.

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Plant communities of the dune complex are a result of interaction between tolerance of plant species and sandy substrate, high wind velocities, salt spray, sand accretion and environmental heterogeneity. Propagules of many plant species are dispersed by water currents and deposited on the driftline. Most of these species find ideal conditions for germination but seedling establishment, growth and reproduction is denied to all but a few species with ecological amplitude sufficient to withstand the physical stresses associated with sand accretion, erosion and sandblasting in the highly disturbed environment. The distinct differences between habitats from the water´s edge to the inland grass-forest ecotone leads eventually to the establishment of ecologically distinct communities consisting of both plants and animals. The distinction is caused by sharp differences in the physical environment that may create sharp zones with abrupt or gradual blending of the two community types. In some locations these zones are relatively stable for long periods before any visible change occurs in the community depending on the recession of the shoreline, availability of new bare areas and the advance of communities towards the sea coast. The occurrence of plant communities in zones has been documented along sea coasts worldwide. This chapter examines the plant communities of the sand dune complex along seashores of the world. The following information has been assembled from Doing (1985), Dry coastal ecosystems Vol. 2 A, B, C, edited by Eddy van der Maarel (1993), Doody (1991) and Thannheiser (1984). It presents data on plant communities and ecology of each zone from various parts of the world. The species complement in the ´foredune complex´ in tropical, temperate and other regions around the world may be different, but their response to the prevailing environmental stresses of foredunes is convergent. In different world regions the boundaries between vegetation zones of the sand dune complex may not be defined sharply because of climatic variability, geographic location, physiography of the dune system and other factors peculiar to each location. Usually three to six different plant assemblages have been identified on the dune complex along sea coasts and lakeshores. A brief description of vegetation and ecological traits of species in each zone are presented below.
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Conference papers on the topic "Coastal foredune"

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RUGGIERO, PETER, JEREMY MULL, PHOEBE ZARNETSKE, SALLY HACKER, and ERIC SEABLOOM. "INTERANNUAL TO DECADAL FOREDUNE EVOLUTION." In The Proceedings of the Coastal Sediments 2011. World Scientific Publishing Company, 2011. http://dx.doi.org/10.1142/9789814355537_0053.

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DOYLE, THOMAS B., and COLIN D. WOODROFFE. "WHAT ROLE DOES COASTAL VEGETATION PLAY IN FOREDUNE MORPHODYNAMICS?" In Coastal Sediments 2015. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814689977_0091.

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Keijsers, J. G. S., A. Poortinga, M. J. P. M. Riksen, and A. V. de Groot. "Connecting aeolian sediment transport with foredune development." In NCK-days 2012 : Crossing borders in coastal research. Enschede, the Netherlands: University of Twente, Department of Water Engineering & Management, 2012. http://dx.doi.org/10.3990/2.187.

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BRODIE, KATHERINE L., and NICHOLAS J. SPORE. "FOREDUNE CLASSIFICATION AND STORM RESPONSE: AUTOMATED ANALYSIS OF TERRESTRIAL LIDAR DEMS." In Coastal Sediments 2015. WORLD SCIENTIFIC, 2015. http://dx.doi.org/10.1142/9789814689977_0041.

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Burnashov, Evgenii, Evgenii Burnashov, Konstantin Karmanov, and Konstantin Karmanov. "COMPARATIVE ANALYSIS OF THE INFLUENCE OF NATURAL AND ANTHROPOGENIC FACTORS ON THE VISTULA SPIT FOREDUNE EROSION (THE BALTIC SEA." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b93da333dd5.38561507.

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The study gives quantitative estimation of natural landforms sensitivity of accumulative type coasts exposed to human influence. Foredune is an essential element of a morphological structure of thebarrier spits located at the Baltic Sea sand coasts. The study compares contribution of the beach erosion and deflation (soil drifting) to the foredune degradation on the sea shore of the barrier spit with or without the recreational impact. The analysis is performed for three typical polygons located on the Russian part of the Vistula Spit. Chosen polygons present shore segments with various intensity of tourism: visitors from the village, unregulated camp tourism, and nearly natural conditions. Detailed geodesic survey was carried out on these three polygons (length 515 m, 265 m, and 521 m respectively; total area – 125000 m2) in July of 2015. It was done with single-frequency geodesic GPS Trimble 5700L1 (base station) and TrimbleR3 (rover). Two DEMs were developed using the results of laser scanning of 2007 and the survey of 2015. Volume deformation for whole polygons and its particular parts (beach and foredune ridge) was made by comparison of the DEMs. In the case of touristic load the effect of deflation is 5-15 times higher than the marine erosion of foredune edge. If not affected by an anthropogenic factor the foredune erosion is caused mainly by the sea, and its impact is 6 times higher than that of the natural deflation.
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Burnashov, Evgenii, Evgenii Burnashov, Konstantin Karmanov, and Konstantin Karmanov. "COMPARATIVE ANALYSIS OF THE INFLUENCE OF NATURAL AND ANTHROPOGENIC FACTORS ON THE VISTULA SPIT FOREDUNE EROSION (THE BALTIC SEA." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b4315ce62ab.

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The study gives quantitative estimation of natural landforms sensitivity of accumulative type coasts exposed to human influence. Foredune is an essential element of a morphological structure of thebarrier spits located at the Baltic Sea sand coasts. The study compares contribution of the beach erosion and deflation (soil drifting) to the foredune degradation on the sea shore of the barrier spit with or without the recreational impact. The analysis is performed for three typical polygons located on the Russian part of the Vistula Spit. Chosen polygons present shore segments with various intensity of tourism: visitors from the village, unregulated camp tourism, and nearly natural conditions. Detailed geodesic survey was carried out on these three polygons (length 515 m, 265 m, and 521 m respectively; total area – 125000 m2) in July of 2015. It was done with single-frequency geodesic GPS Trimble 5700L1 (base station) and TrimbleR3 (rover). Two DEMs were developed using the results of laser scanning of 2007 and the survey of 2015. Volume deformation for whole polygons and its particular parts (beach and foredune ridge) was made by comparison of the DEMs. In the case of touristic load the effect of deflation is 5-15 times higher than the marine erosion of foredune edge. If not affected by an anthropogenic factor the foredune erosion is caused mainly by the sea, and its impact is 6 times higher than that of the natural deflation.
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DOYLE, THOMAS B., ANDREW D. SHORT, and COLIN D. WOODROFFE. "FOREDUNE EVOLUTION IN EASTERN AUSTRALIA: A MANAGEMENT CASE STUDY ON WARILLA BEACH." In International Conference on Coastal Sediments 2019. WORLD SCIENTIFIC, 2019. http://dx.doi.org/10.1142/9789811204487_0197.

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Бадюкова, Е., E. Badyukova, Леонид Жиндарев, Leonid Zhindarev, Светлана Лукьянова, Svetlana Lukyanova, Г. Соловьева, and G. Solov'eva. "ACCUMULATION-DEFLATIONARY PROCESSES ON MARINE SAND BARS COASTS OF THE SOUTHERN-EAST BALTIC." In Sea Coasts – Evolution ecology, economy. Academus Publishing, 2018. http://dx.doi.org/10.31519/conferencearticle_5b5ce3887ae4e9.49318189.

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Modern accumulative and deflation forms of a coastal eolian relief on the sea coast of Kuronian and Vistula Spits are considered. It is established that on coastal barriers there are at the same time processes of accretion and degradation of a dune ridge and leaned against it foredune. Alternation of stable and erosive sites of a dune ridge is revealed. The last has destruction signs as with sea (wave erosion), and from the land side where the whirls of a wind stream creating numerous deflation basins in dune ridge have great value.
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SHAWLER, JUSTIN L., DANIEL J. CIARLETTA, JORGE LORENZO-TRUEBA, and CHRISTOPHER J. HEIN. "DROWNED FOREDUNE RIDGES AS EVIDENCE OF PRE- HISTORICAL BARRIER-ISLAND STATE CHANGES BETWEEN MIGRATION AND PROGRADATION." In International Conference on Coastal Sediments 2019. WORLD SCIENTIFIC, 2019. http://dx.doi.org/10.1142/9789811204487_0015.

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Sergeev, Alexander, Alexander Sergeev, Дарья Рябчук, Daria Ryabchuk, Vladimir Zhamoida, Vladimir Zhamoida, Igor Leont’ev, and Igor Leont’ev. "APPLICATION OF ONSHORE LASER SCANNING DATA FOR MATHEMATIC MODELING OF COASTAL PROFILE CHANGES." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b943d5666e6.34864386.

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The easternmost part of the Gulf of Finland is characterized by intense coastal processes where erosion dominates. Onshore laser scanning of a beach surface of three coastal zone segments of the Kurortny District, St. Petersburg was carried out during the process of realisation of the CliPLivE project and coastal monitoring investigated by VSEGEI and “Mineral” company. One of the goals of the CliPLivE project was a prediction of coastal evolution by 2100 year based on retrospective analysis of the last century remote sensing data. The average annual range of coastal transformation was used for the mathematic modelling of beach profile changes. The model takes into account changes of sea level and possible increase of storm events occurrence. The onshore laser scanning was carried out each summer since 2012. After series of storms in 2015 the repeated scanning was carried out in December. It gave an opportunity to calculate volume and area of redeposited sand during the last storm that shows that a part or almost all sand material from eroded foredune was deposited in a middle part of the beach. This material forms an onshore sand bar in front of a new formed erosion escarpment. The comparison of the beach relief elevation models of 2012 and 2015 shows that another part of sand (up to 30-40% of volume of all mobilized beach sand) was washed out from the beach to offshore. The data of onshore laser scanning confirmed that the mathematical model of prediction coastal changes works.
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Reports on the topic "Coastal foredune"

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Brodie, Katherine, Ian Conery, Nicholas Cohn, Nicholas Spore, and Margaret Palmsten. Spatial variability of coastal foredune evolution, part A : timescales of months to years. Engineer Research and Development Center (U.S.), July 2021. http://dx.doi.org/10.21079/11681/41322.

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Coastal foredunes are topographically high features that can reduce vulnerability to storm-related flooding hazards. While the dominant aeolian, hydrodynamic, and ecological processes leading to dune growth and erosion are fairly well-understood, predictive capabilities of spatial variations in dune evolution on management and engineering timescales (days to years) remain relatively poor. In this work, monthly high-resolution terrestrial lidar scans were used to quantify topographic and vegetation changes over a 2.5 year period along a micro-tidal intermediate beach and dune. Three-dimensional topographic changes to the coastal landscape were used to investigate the relative importance of environmental, ecological, and morphological factors in controlling spatial and temporal variability in foredune growth patterns at two 50 m alongshore stretches of coast. Despite being separated by only 700 m in the alongshore, the two sites evolved differently over the study period. The northern dune retreated landward and lost volume, whereas the southern dune prograded and vertically accreted. The largest differences in dune response between the two sections of dunes occurred during the fall storm season, when each of the systems’ geomorphic and ecological properties modulated dune growth patterns. These findings highlight the complex eco-morphodynamic feedback controlling dune dynamics across a range of spatial scales.
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Palmsten, Margaret, Katherine Brodie, and Nicholas Spore. Coastal foredune evolution, Part 2 : modeling approaches for meso-scale morphologic evolution. Coastal and Hydraulics Laboratory (U.S.), March 2017. http://dx.doi.org/10.21079/11681/21627.

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Brodie, Katherine, Margaret Palmsten, and Nicholas Spore. Coastal foredune evolution, Part 1 : environmental factors and forcing processes affecting morphological evolution. Coastal and Hydraulics Laboratory (U.S.), February 2017. http://dx.doi.org/10.21079/11681/21468.

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Bryant, Duncan, Mary Bryant, and Alison Grzegorzewski. Erosion of coastal foredunes : a review on the effect of dune vegetation. Coastal and Hydraulics Laboratory (U.S.), February 2017. http://dx.doi.org/10.21079/11681/21464.

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Renaud, Alexander, Michael Forte, Nicholas Spore, Brittany Bruder, Katherine Brodie, Jessamin Straub, and Jeffrey Ruby. Evaluation of Unmanned Aircraft Systems for flood risk management : results of terrain and structure assessments. Engineer Research and Development Center (U.S.), August 2022. http://dx.doi.org/10.21079/11681/45000.

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The 2017 Duck Unmanned Aircraft Systems (UAS) Pilot Experiment was conducted by the US Army Engineer Research and Development Center (ERDC), Coastal and Hydraulics Laboratory, Field Research Facility (FRF), to assess the potential for different UAS to support US Army Corps of Engineers coastal and flood risk management. By involving participants from multiple ERDC laboratories, federal agencies, academia, and private industry, the work unit leads were able to leverage assets, resources, and expertise to assess data from multiple UAS. This report compares datasets from several UAS to assess their potential to survey and observe coastal terrain and structures. In this report, UAS data product accuracy was analyzed within the context of three potential applications: (1) general coastal terrain survey accuracy across the FRF property; (2) small-scale feature detection and observation within the experiment infrastructure area; and (3) accuracy for surveying coastal foredunes. The report concludes by presenting tradeoffs between UAS accuracy and the cost to operate to aid in selection of the best UAS for a particular task. While the technology and exact UAS models vary through time, the lessons learned from this study illustrate that UAS are available at a variety of costs to satisfy varying coastal management data needs.
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