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Artigos de revistas sobre o tema "Coast changes Beaches"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 1 de fevereiro de 2022

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1

Wang, Alexander, Xiao Hua Wang, and Gang Yang. "The Effects of Wind-Driven Storm Events on Partly Sheltered Estuarine Beaches in Batemans Bay, New South Wales, Australia." Journal of Marine Science and Engineering 9, no. 3 (2021): 314. http://dx.doi.org/10.3390/jmse9030314.

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Extreme wind-driven storm events have the potential to erode beach systems. Along the East Coast of Australia, storm events have been responsible for beach erosion in many coast-facing, open beaches. This paper investigates the potential impacts of wind-driven storms on partly sheltered estuarine beaches—a niche found within Batemans Bay, New South Wales (NSW), along the East Coast. It combines beach geomorphological data with meteorological and oceanographic data to evaluate the impacts of large storm events on three partly sheltered estuarine embayed beaches (Cullendulla Beach, Corrigans Bea

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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.

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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 w

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3

Brazeiro, Alejandro. "Geomorphology induces life history changes in invertebrates of sandy beaches: the case of the mole crab Emerita analoga in Chile." Journal of the Marine Biological Association of the United Kingdom 85, no. 1 (2005): 113–20. http://dx.doi.org/10.1017/s002531540501091xh.

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The hypothesis that vital functions of one of the most successful macroinvertebrates of sandy beaches of Chile, the mole crab Emerita analoga are negatively affected by the environmental conditions of reflective beaches was tested. Twelve exposed sandy beaches distributed along 200 km of coast of central Chile, and selected to cover a wide morphodynamic spectrum were sampled every two months from April 1997 to November 1998. Significant phenotypic differences among local populations of the sand crab were detected. Important life history traits of the sand crab, linked to growth pattern, reprod

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4

Nguyen Hao, Quang, and Satoshi Takewaka. "Shoreline Changes along Northern Ibaraki Coast after the Great East Japan Earthquake of 2011." Remote Sensing 13, no. 7 (2021): 1399. http://dx.doi.org/10.3390/rs13071399.

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In this study, we analyze the influence of the Great East Japan Earthquake, which occurred on 11 March 2011, on the shoreline of the northern Ibaraki Coast. After the earthquake, the area experienced subsidence of approximately 0.4 m. Shoreline changes at eight sandy beaches along the coast are estimated using various satellite images, including the ASTER (Advanced Spaceborne Thermal Emission and Reflection Radiometer), ALOS AVNIR-2 (Advanced Land Observing Satellite, Advanced Visible and Near-infrared Radiometer type 2), and Sentinel-2 (a multispectral sensor). Before the earthquake (for the

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5

SHIOIRI, Dou, Takaaki UDA, Jun-ichi HOSOKAWA, et al. "BEACH CHANGES OF KAMAKURA COAST (ZAIMOKUZA AND YUI-GA-HAMA BEACHES) IN KANAGAWA PREFECTURE." Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 67, no. 2 (2011): I_1195—I_1200. http://dx.doi.org/10.2208/jscejoe.67.i_1195.

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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 (2021): 68–92. http://dx.doi.org/10.29006/1564-2291.jor-2021.49(1).5.

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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 dy

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7

Baldock, Tom, and William Ginzo. "MORPHOLOGICAL RESPONSE OF A REEF-FRONTED BEACH TO SEA LEVEL RISE AND REEF DEGRADATION." Coastal Engineering Proceedings, no. 36v (December 28, 2020): 1. http://dx.doi.org/10.9753/icce.v36v.sediment.1.

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The morphological response of reef-fronted beaches to sea level rise and reef degradation is investigated by physical modelling. Coral barrier and fringing reefs limit the wave energy reaching sandy beaches, providing protection to many communities worldwide (Ferrario et al., 2014). Sea level rise and loss of reef flat elevation through coral mortality are expected to alter water levels over such reefs in the future. Assessing the morphological response to these processes in the field is very difficult due to the timescale involved, and lack of data for current conditions. Numerical modelling

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TOLDO JR, ELÍRIO, LUIZ ALMEIDA, LUCIANO ABSALONSEN, and NELSON GRUBER. "O Controle da Deriva Litorânea no Desenvolvimento do Campo de Dunas e da Antepraia no Litoral Médio do Rio Grande do Sul." Pesquisas em Geociências 33, no. 2 (2006): 35. http://dx.doi.org/10.22456/1807-9806.19511.

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Zones of erosion and accretion were delimited by comparing a DGPS shoreline mapping in 1997 and the beach line reproduced from the army chart collection of 1975. The results show extensive shore retreat along of Rio Grande do Sul central coast, while accretion was observed in Mostardas and Dunas Altas beach. Mathematical estimative of the regional longshore transport potential along the Rio Grande do Sul coast, a 630-km long holocenic fine sand barrier, resulted in a large net northward annual sand volume. Additionally, the estimated potential of sediment transport based on the CERC formula pr

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9

Oliveira Fortaleza, Matheus, Magalline Maria Lemos Girão, Wilson Franklin Junior, Jadson Pinto de Lima, and Cristina De Almeida Rocha-Barreira. "WHICH MOON PHASE DO WE FIND MORE GHOSTS? EFFECTS OF THE LUNAR CYCLE ON THE GHOST CRAB Ocypode quadrata (FABRICIUS, 1787)." Arquivos de Ciências do Mar 52, no. 2 (2020): 85–97. http://dx.doi.org/10.32360/acmar.v52i2.42737.

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The ghost crab Ocypode quadrata is commonly found in the middle and supralittoral areas of sandy beaches along the Brazilian coast. It is a known and important species in the ecology of beaches, which inhabit semi-permanent burrows excavated, maintained, and protected by them. This study evaluated the density and diameter of O. quadrata burrows, considering three lunar cycles in a Conservation Unit on the coast of Ceará state, Northeastern Brazil. Quarterly samplings were performed between 2014 and 2015 during the early morning in the four phases of the moon over three lunar cycles. The tidal

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10

ISLA, FEDERICO, GERMAN BERTOLA, MARCELO FARENGA, and LUIS CORTIZO. "Variaciones Antropogenicas de las Playas del Sudeste de Buenos Aires, Argentina." Pesquisas em Geociências 28, no. 1 (2001): 27. http://dx.doi.org/10.22456/1807-9806.20165.

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The southeastern coast of Buenos Aires Province is subject to natural and critic erosion problems induced mainly by storm tracks from the south. Man tried to minimize these problems by the construction of groin fields and recently by beach-nourishment programs. Sand exploitation was very intense and was prohibited at the end of the eighties (there are still local exploitations where sand accumulation is induced at the base of the southern jetty of the Mar del Plata harbor). Comparing beach surveys carried out at different periods (1983-84, 1991-93 and 1997-2000), significant changes in beach m

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11

VIDAL, MARÍA, and JESÚS DOMÍNGUEZ. "Long-term population trends of breeding Kentish PloversCharadrius alexandrinusin north-west Spain under the effects of a major oil spill." Bird Conservation International 23, no. 3 (2012): 386–98. http://dx.doi.org/10.1017/s0959270912000342.

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SummaryThe Kentish PloverCharadrius alexandrinusis the only wader that nests on the beaches of Galicia, north-west Spain. In November 2002, much of that habitat was heavily affected by thePrestigeoil spill, considered one of the largest spills ever experienced in Europe. We used a 23-year dataset (1988–2010) tracking the abundance and distribution of Kentish Plover breeding pairs along the Galician coast to evaluate population trends and identify the underlying effects of an oil spill. A TRIM linear trend model classified the population trend as a moderate increase; the main trend exhibited a

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12

Irham, Muhammad, Ichsan Rusydi, Haekal A. Haridhi, et al. "Coastal Vulnerability of the West Coast of Aceh Besar: A Coastal Morphology Assessment." Journal of Marine Science and Engineering 9, no. 8 (2021): 815. http://dx.doi.org/10.3390/jmse9080815.

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The purpose of this study was to determine how vulnerable the west coast of Aceh Besar, Aceh province, Indonesia, is in terms of its coastal morphology. This research was conducted from August to December 2020 and data processing was carried out at the Geographical Information Systems Laboratory, Faculty of Marine Affairs and Fisheries, Syiah Kuala University. The method used was the coastal vulnerability index (CVI) with four geological parameters, namely geomorphological parameters, beach elevation, beach slope and shoreline changes. The results obtained from the CVI method show that 20.60%

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13

Seymour, Richard J., and David Castel. "VALIDATION OF CROSS-SHORE TRANSPORT FORMULATIONS." Coastal Engineering Proceedings 1, no. 21 (1988): 124. http://dx.doi.org/10.9753/icce.v21.124.

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Seymour and King (1982) evaluated eight models for predicting cross-shore transport using beach profile data from the Torrey Pines experiment of the Nearshore Sediment Transport Study (NSTS). None of the models showed useful skill in predicting the sense, or direction, of transport. Three more data sets were acquired under NSTS and have been used in the present work to re-evaluate the original four models as well as another six not previously tested. The three new data sets include two nominally plane West Coast beaches and a barred beach on the Atlantic coast, each under a variety of wave con

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14

Uda, Takaaki. "Beach Erosion Arising from Artificial Land Modification." Journal of Disaster Research 2, no. 1 (2007): 29–36. http://dx.doi.org/10.20965/jdr.2007.p0029.

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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.

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15

San-nami, Toshiro, Takaaki Uda, Masashi Yamada, and Toshinori Ishikawa. "LONG-TERM TOPOGRAPHIC CHANGES AROUND SAND SPIT AND IMPACT OF EXTRAORDINARY HIGH WAVES DURING TYPHOONS." Coastal Engineering Proceedings, no. 35 (June 23, 2017): 8. http://dx.doi.org/10.9753/icce.v35.sediment.8.

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Around the Mihono-matsubara sand spit in Suruga Bay in Japan, the beach was eroded owing to the decrease in the fluvial sand supply from the Abe River triggered by excess riverbed mining before 1967, together with the discharge of sand into the deep sea via a steep slope near the tip of the sand spit. As a measure against beach erosion, an artificial headland (HL) composed of two detached breakwaters and the breakwaters (BWs) placed along the shoreline have been constructed along with beach nourishment, but the beach is barely maintained by these measures. In 2013, two large typhoons hit the c

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16

Owens, Edward H. "FACTORS AFFECTING THE PERSISTENCE OF STRANDED OIL ON LOW ENERGY COASTS." International Oil Spill Conference Proceedings 1985, no. 1 (1985): 359–65. http://dx.doi.org/10.7901/2169-3358-1985-1-359.

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ABSTRACT Mechanical dispersion by waves is usually considered to be the primary factor that controls the persistence of spilled oil reaching the coast. This assumption is accurate for stable coasts that are not subject to net erosion or accretion and beaches where oil would not be buried by onshore, offshore, or alongshore movement of sediments. On high energy coasts, oil can be rapidly buried or eroded, depending on the stage of beach changes. Similarly, oil stranded on coasts subject to rapid net accretion or erosion is likely to be buried or dispersed. Rapid shoreline changes can occur in a

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17

Corbella, S., and D. D. Stretch. "Decadal trends in beach morphology on the east coast of South Africa and likely causative factors." Natural Hazards and Earth System Sciences 12, no. 8 (2012): 2515–27. http://dx.doi.org/10.5194/nhess-12-2515-2012.

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Abstract. Sandy shorelines are dynamic with constant changes that can cause hazards in developed areas. The causes of change may be either natural or anthropogenic. This paper evaluates evidence for shoreline changes and their causative factors using a case study on the east coast of South Africa. Beach morphology trends were found to be location-specific, but overall the beaches show a receding trend. It was hypothesized that wave, tide, sea level and wind trends as well as anthropogenic influences are causative factors, and their contributions to shoreline changes were evaluated. Maximum sig

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18

Uda, Takaaki. "Fundamental issues in Japan’s management system of coast for preventing beach erosion." Maritime Technology and Research 4, no. 1 (2021): Manuscript. http://dx.doi.org/10.33175/mtr.2022.251788.

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When an offshore or port breakwater is constructed on a coast, beach erosion often occurs on nearby beaches of the breakwater due to the wave diffraction effect of the breakwater associated with the formation of a wave-shelter zone, because longshore sand transport is triggered from outside to inside the wave-shelter zone. Similarly, when unidirectional longshore sand transport is blocked by a breakwater, beach erosion will occur downcoast. In these cases, longshore sand movement is the key factor. Another aspect is arisen from the management system of the land near a coast subject to such lon

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Taaouati, Mohammed, Pietro Parisi, Giuseppe Passoni, et al. "Influence of a Reef Flat on Beach Profiles Along the Atlantic Coast of Morocco." Water 12, no. 3 (2020): 790. http://dx.doi.org/10.3390/w12030790.

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The North Atlantic coast of Morocco is characterised by a flat rocky outcrop in the south (Asilah Beach) and a sandy beach free of rocky outcrops in the north (Charf el-Akab). These natural beaches were monitored for a period of two years (April 2005–January 2007) and two different profiles (one for each beach) were analysed based on differences in the substrate. Topographic data were analysed using statistics and empirical orthogonal functions (EOFs) to determine beach slope and volumetric changes over time. Several morphologic phenomena were identified (accretion/erosion and seasonal tilting

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20

Silveira, Lucas Ferreira da, Lindino Benedet, Morjana Signorin, and Rafael Bonanata. "EVALUATION OF THE RELATIONSHIPS BETWEEN NAVIGATION CHANNEL DREDGING AND EROSION OF ADJACENT BEACHES IN SOUTHERN BRAZIL." Coastal Engineering Proceedings 1, no. 33 (2012): 106. http://dx.doi.org/10.9753/icce.v33.sediment.106.

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São Francisco do Sul Harbor, located in the Babitonga Bay, Santa Catarina, is one of the main containership harbors in Brazil and has been in operation since 1955. Due to the increasing demand for ships with greater size and draught, the navigation channel was dredged to 10 m depth in 1980 and has been gradually deepened to 13 m in recent years to accommodate Post-Panamax vessels. During the 30 years of dredging operations, more than 10 million m³ of sediments were removed from the coastal system and dumped into an offshore disposal area (about 15 m water depth), whilst the downdrift beach has

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Shaw, John, Robert B. Taylor, and Donald L. Forbes. "Impact of the Holocene Transgression on the Atlantic Coastline of Nova Scotia." Géographie physique et Quaternaire 47, no. 2 (2007): 221–38. http://dx.doi.org/10.7202/032950ar.

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ABSTRACT As analogs for impact of a future sea-level rise on the coast of Nova Scotia (eastern Canada), geological data and information on relative sea-level changes are examined at three different time scales. Relative sea level rose swiftly during the early Holocene, at a maximum rate of 11 m/ka at 7500 radiocarbon years BP. Freshwater, salt-marsh, and estuarine sediments that formed during this period have been located on the inner shelf. After 5000 BP the rate slackened to about 2 m/ka. Despite overall submergence and coastal retreat since that time, gravel barriers have persisted where la

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Araújo, Maria da Assunção. "Climate, tectonics and beach erosion: the case of Espinho (NW Portuguese coast)." Estudos do Quaternário / Quaternary Studies, no. 5 (June 21, 2018): 39–50. http://dx.doi.org/10.30893/eq.v0i5.59.

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Sea level is a very changeable surface. Furthermore, the land may also be moving, in a slower rate,generating relative sea level changes. The causes of relative sea level changes are variable, but the onesthat cause more intense variations are related to climate.During Little Ice Age (LIA) Northern Hemisphere's summer temperatures fell significantly below theAD 1961–1990 range. This climate situation was responsible for a greater discharge of rivers, whichcould lead to a greater transportation of sediments to the coastline. During these cold periods, sea levelwas lower than in present time. Al

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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 (2020): 380. http://dx.doi.org/10.3390/jmse8060380.

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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

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Astel, Aleksander, Marcin Stec, and Iwona Rykowska. "Occurrence and Distribution of UV Filters in Beach Sediments of the Southern Baltic Sea Coast." Water 12, no. 11 (2020): 3024. http://dx.doi.org/10.3390/w12113024.

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The interest in UV filters’ occurrence in the environment has increased since they were recognized as “emerging contaminants” having potentially adverse impacts on many ecosystems and organisms. Increased worldwide demand for sunscreens is associated with temperature anomalies, high irradiance, and changes in the tourist market. Recently, it has been demonstrated that personal care products, including sunscreens, appear in various ecosystems and geographic locations causing an ecotoxicological threat. Our goal was to determine for the first time the presence of selected organic UV filters at f

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Anfuso, Giorgio, Carlos Loureiro, Mohammed Taaouati, Thomas Smyth, and Derek Jackson. "Spatial Variability of Beach Impact from Post-Tropical Cyclone Katia (2011) on Northern Ireland’s North Coast." Water 12, no. 5 (2020): 1380. http://dx.doi.org/10.3390/w12051380.

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In northern Europe, beach erosion, coastal flooding and associated damages to engineering structures are linked to mid-latitude storms that form through cyclogenesis and post-tropical cyclones, when a tropical cyclone moves north from its tropical origin. The present work analyses the hydrodynamic forcing and morphological changes observed at three beaches in the north coast of Northern Ireland (Magilligan, Portrush West’s southern and northern sectors, and Whiterocks), prior to, during, and immediately after post-tropical cyclone Katia. Katia was the second major hurricane of the active 2011

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Aranda, María, Francisco Javier Gracia, and Gloria Peralta. "Estuarine Mapping and Eco-Geomorphological Characterization for Potential Application in Conservation and Management: Three Study Cases along the Iberian Coast." Applied Sciences 10, no. 13 (2020): 4429. http://dx.doi.org/10.3390/app10134429.

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Geomorphological changes in recent decades in three estuaries along the Iberian coast were analysed using aerial orthophotographs. A hierarchical classification scheme, based on a literature review representing 26 estuarine eco-geomorphological features relevant to estuarine dynamics and functioning, is described. The estuaries selected were San Vicente de la Barquera (N Spain), Guadiana River (SW border between Spain and Portugal) and the Ebro River Delta mouth (NE Spain). For these systems, a 60-year time series of high-resolution maps was developed, analysing the changes in feature surfaces

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Hoyle, J. W., and G. T. King. "THE ORIGIN AND STABILITY OF BEACHES." Coastal Engineering Proceedings 1, no. 6 (2011): 17. http://dx.doi.org/10.9753/icce.v6.17.

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One should not lose sight of the fact that the origin of beaches goes back into antiquity. The story "begins with the origin of matter and continues through the aeons with the evolution of the solar system and the appearance of the Earth as a fiery ball gyrating in space. As one's focus narrows there is to be seen the cooling of that ball, the formation of dense clouds of water vapour in the atmosphere, the torrential rains and the beginnings of the seas. Perhaps it is at this point that the introduction is completed and the real story of the beaches begins, for with the rains came erosion of

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Pietropaolo, Jill, Nobuhisa Kobayashi, and Jeffry A. Melby. "WAVE RUNUP ON DIKES AND BEACHES." Coastal Engineering Proceedings 1, no. 33 (2012): 19. http://dx.doi.org/10.9753/icce.v33.currents.19.

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In the United States, the Federal Emergency Management Agency (FEMA) is in the process of updating its coastal flood risk maps in order to determine which locations are threatened by storm surge and wave action. These maps require the prediction of extreme wave runup. A method for predicting the runup height along the entire coast must be robust, reliable, and applicable to many different coastal features. Kobayashi et al. (2008) developed a time-average probabilistic model that predicts wave runup statistics instead of the time series of shoreline elevation. This numerical cross-shore model,

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Darlan, Yudi, and Udaya Kamiludin. "COASTAL DYNAMICS OF SINGKAWANG, WEST KALIMANTAN." BULLETIN OF THE MARINE GEOLOGY 27, no. 2 (2016): 77. http://dx.doi.org/10.32693/bomg.27.2.2012.47.

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Morphologically, Singkawang and adjacent area consist of zones beaches, undulating hills, and steep hills. Granitic rocks and alluvium as a based rock of Singkawang coasts. Generally, Singkawang coasts was developed for coastal farms, fishery pond, and beach resorts, where most of these area have been eroded. Geological and physical oceanography condition are the aspects that build the characteristics of Singkawang coast. Human activities also play an important role in managing the equilibrium and dynamics of this coastal region. This research is to determine the dynamics and coastline changes

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Jeyaraj, Satheeshkumar, and Balaji Ramakrishnan. "UNDERSTANDING SURF-ZONE HYDRO-MORPHODYNAMIC PROCESSES IN A TYPICAL POCKET BEACH ALONG THE WEST COAST OF INDIA." Coastal Engineering Proceedings, no. 36v (December 28, 2020): 22. http://dx.doi.org/10.9753/icce.v36v.sediment.22.

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Coastal processes are natural processes that operate along coastal zones, resulting in morphological changes in erosion and deposition. The western coast of India is affected by extreme monsoonal wave activity, which can lead to the loss of beaches and the vulnerability of the dunes. As a result, understanding actual near-shore physics and long-shore sediment transport becomes a prerequisite for the development of an effective coastal zone management strategy. The aim of this study is to quantify and investigate longshore sediment flux as a result of wave action based on sediment trap experime

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Yoo, Jeseon, Sungwon Shin, Ki-Cheon Jun, and Jae-Seol Shim. "FIELD OBSERVATIONS AND MODEL PREDICTIONS OF WAVE TRANSFORMATION ON A MACRO-TIDAL BEACH, KOREA." Coastal Engineering Proceedings 1, no. 33 (2012): 43. http://dx.doi.org/10.9753/icce.v33.waves.43.

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Macro-tidal beach processes are influenced by complicated interactions of tide actions, coastal waves and morphological changes. Tidal cycles may be a primary forcing responsible for specific characteristics of hydrodynamic and morphological processes complicated on the intertidal flat in space and time. Macro-tidal sandy beaches are frequently developed in the west coast of Korea, experiencing seasonal variations of inter-tidal processes caused by a monsoonal climate in the Yellow Sea. Large winter waves tend to excite active beach morphological processes, inducing beach erosion and seaward-d

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Cox, Ron, and Daniel Howe. "TWEED RIVER ENTRANCE AND BYPASS SEDIMENT DYNAMICS." Coastal Engineering Proceedings 1, no. 33 (2012): 67. http://dx.doi.org/10.9753/icce.v33.sediment.67.

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A sediment budget analysis model was applied to the Tweed River entrance, and was used to evaluate different coastal management scenarios. Construction of training walls at the Tweed River entrance resulted in the accretion prior to 1994 of an estimated 7 million m3 along Letitia Spit, New South Wales (to the south), and erosion of beaches at the Gold Coast, Queensland (to the north). The Tweed River Entrance Sand Bypassing Project (TRESBP) was established in 1994 and is responsible for bypassing sand from south to north, through dredging campaigns and a permanent bypass jetty. The Inlet Reser

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Fernández-Fernández, Sandra, Caroline C. Ferreira, Paulo A. Silva, et al. "Assessment of Dredging Scenarios for a Tidal Inlet in a High-Energy Coast." Journal of Marine Science and Engineering 7, no. 11 (2019): 395. http://dx.doi.org/10.3390/jmse7110395.

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The high energetic wave climate of the North Atlantic Ocean causes important morphological changes at Figueira da Foz coastal system (W Portugal), which is comprised of sandy beaches and the Mondego estuary-inlet. The submerged sandbar at the inlet mouth is highly dynamic inducing short waves shoaling and breaking processes that can entail navigation problems towards the local harbor. Therefore, coastal dredging operations are performed to guarantee safe navigation. Nevertheless, these operations have a limited temporal effectiveness and require a high annual budget to be accomplished. The goa

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Ondoa, G. Abessolo, R. Almar, B. Castelle, et al. "Sea Level at the Coast from Video-Sensed Waves: Comparison to Tidal Gauges and Satellite Altimetry." Journal of Atmospheric and Oceanic Technology 36, no. 8 (2019): 1591–603. http://dx.doi.org/10.1175/jtech-d-18-0203.1.

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AbstractNearshore complex and energetic hydrodynamic conditions make observing evolving processes during extreme and short-term events difficult. In particular, total sea levels at the coast are hard to measure with current techniques. Sea level is commonly measured with tidal gauges and spaceborne altimetry, which lack essential details of spatial and wave-related sea level variability along the coast. Hence, novel techniques, adapted to nearshore areas, are required. This paper presents the first-time use of video cameras to derive the total sea level at the coast. This novel approach consis

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Pattipawaej, O., and G. Hardiyan. "ANALYSIS OF SHORELINE CHANGE IN COASTAL AREA OF SUBANG WEST JAVA INDONESIA FROM 2010 TO 2019 THROUGH SATELLITE IMAGERY." International Journal of Advanced Research 8, no. 9 (2020): 1166–72. http://dx.doi.org/10.21474/ijar01/11771.

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The condition of beaches in Indonesia is currently quite concerning. Indonesia's mangroves and coastal sand are in danger of being damaged. Commitment from all parties is needed to overcome coastal damage. If not, the negative impact will be dangerous for the existence of coastal communities. Damage to coastal is a serious threat to the surrounding ecosystem, even tends to harm humans. Not only waste carried by the flow into the sea, but also garbage disposed of around the coastal areas of the sea and poor land management are clearly some actions that can reduce the carrying capacity of the en

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Castelle, Bruno, Vincent Marieu, and Stéphane Bujan. "Alongshore-Variable Beach and Dune Changes on the Timescales from Days (Storms) to Decades Along the Rip-dominated Beaches of the Gironde Coast, SW France." Journal of Coastal Research 88, sp1 (2019): 157. http://dx.doi.org/10.2112/si88-012.1.

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Sulaiman, Dede, and Hendra Hidayat. "THE ROLE OF GEOTEXTILE TUBE AS LOW-CRESTED BREAKWATERS IN RESTORING SEVERE BEACH EROSION PROBLEM AT PEBUAHAN BEACH IN BALI ISLAND." Coastal Engineering Proceedings, no. 36v (December 31, 2020): 53. http://dx.doi.org/10.9753/icce.v36v.papers.53.

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Pebuahan Beach in Jembrana Regency, Bali has experienced severe beach erosion since the construction of the Nusantara Pengambengan fishing port, 10 km east of Pebuahan. Efforts to countermeasure the coastal problem has been carried out by many local residents, but failed due to strong longshore drift. Through a collaboration between the Research Center for Water Resources, the Bali Penida River Basin, and PT. Geotechnical Systemindo, the implementation of low-crested breakwaters (LCB) or PEGAR, made of Woven Geotextile Tubes was initiated. Four woven geotextile tubes C12.9 m with length varied

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Navera, Umme Kulsum, and Md Safin Ahmed. "Application of Landsat Imagery and Vegetation Index Property to Assess the Shoreline Changes Along Cox’s Bazar–Teknaf Coast." Journal of Engineering Science 12, no. 1 (2021): 21–28. http://dx.doi.org/10.3329/jes.v12i1.53097.

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Bangladesh is located at the head of the Bay of Bengal. The coast of Bangladesh is known as a zone of vulnerabilities as well as opportunities which involves coast and island boundaries. The eastern coastal zone consists of sandy beaches and hilly areas and is morphologically very dynamic. This shoreline is an important zone which facilitates tourism opportunity, fishing industry, natural resources and regional highway. Cox’s Bazar-Teknaf shoreline has been experiencing severe erosion at a number of places due to wave action. Wave and wind induced motion results in sediment distribution and sh

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Hohnwald, Stefan. "Bird composition of different valley habitats after land-use changes in Northern Honduras." Neotropical Biology and Conservation 16, no. 1 (2021): 129–44. http://dx.doi.org/10.3897/neotropical.16.e57624.

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The northern coast of Honduras is potentially covered with tropical rainforests, reaching from the Caribbean Sea up to the cloud forests of the Pico Bonito summits. Therefore, it was blessed with the mega-diverse avifauna of the Central American humid neotropics. Although local bird species have been generally well documented, there are hardly any updates on the biodiversity of northern Honduras. Thus, this study contributes to our knowledge of the natural shift of bird life, following up the Cangrejal River with its different slight land use intensification in the region. Standardized bird re

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Postacchini, Matteo, Luciano Soldini, Carlo Lorenzoni, and Alessandro Mancinelli. "Medium-term dynamics of a middle Adriatic barred beach." Ocean Science 13, no. 5 (2017): 719–34. http://dx.doi.org/10.5194/os-13-719-2017.

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Abstract. In recent years, attention has been paid to beach protection by means of soft and hard defenses. Along the Italian coast of the Adriatic Sea, sandy beaches are the most common landscape feature and around 70 % of the Marche region's coast (central Adriatic) is protected by defense structures. The longest free-from-obstacle nearshore area in the region includes the beach of Senigallia, frequently monitored in the last decades and characterized by a multiple bar system, which represents a natural beach defense. The bathymetries surveyed in 2006, 2010, 2011, 2012 and 2013 show long-term

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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 (2012): 54. http://dx.doi.org/10.9753/icce.v33.structures.54.

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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 wit

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Lee, Yoon-Kyung, Jinah Eom, Jong-Dae Do, Bum-Jun Kim, and Joo-Hyung Ryu. "Shoreline Movement Monitoring and Geomorphologic Changes of Beaches Using Lidar and UAVs Images on the Coast of the East Sea, Korea." Journal of Coastal Research 90, sp1 (2019): 409. http://dx.doi.org/10.2112/si90-052.1.

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Molina, Rosa, Giorgio Manno, Carlo Lo Re, and Giorgio Anfuso. "Dune Systems’ Characterization and Evolution in the Andalusia Mediterranean Coast (Spain)." Water 12, no. 8 (2020): 2094. http://dx.doi.org/10.3390/w12082094.

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This paper deals with the characterization and evolution of dune systems along the Mediterranean coast of Andalusia, in the South of Spain, a first step to assess their relevant value in coastal flood protection and in the determination of sound management strategies to protect such valuable ecological systems. Different dune types were mapped as well as dune toe position and fragmentation, which favors dune sensitivity to storms’ impacts, and human occupation and evolution from 1977 to 2001 and from 2001 to 2016. Within a GIS (Geographic Information System) project, 53 dune systems were mappe

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Balaji, R., S. Sathish Kumar, and Ankita Misra. "Understanding the effects of seawall construction using a combination of analytical modelling and remote sensing techniques: Case study of Fansa, Gujarat, India." International Journal of Ocean and Climate Systems 8, no. 3 (2017): 153–60. http://dx.doi.org/10.1177/1759313117712180.

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The effect of seawall on the adjacent beaches and coastal dynamics has not been well documented in literature. The purpose and function of coastal structures, especially seawalls, have often been misunderstood, as in some cases, seawalls lead to coastal erosion, contrary to protecting the shoreline for which they are generally constructed. Seawalls have been reportedly causing changes in the near-shore process, specifically the sediment dynamics by affecting the onshore/offshore and, to some extent, the longshore sand transport. Therefore, it becomes imperative to understand the effect of seaw

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Angnuureng, Donatus Bapentire, Philip-Neri Jayson-Quashigah, Rafael Almar, et al. "Application of Shore-Based Video and Unmanned Aerial Vehicles (Drones): Complementary Tools for Beach Studies." Remote Sensing 12, no. 3 (2020): 394. http://dx.doi.org/10.3390/rs12030394.

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Video camera systems have been used over nearly three decades to monitor coastal dynamics. They facilitate a high-frequency analysis of spatiotemporal shoreline mobility. Video camera usage to measure beach intertidal profile evolution has not been standardized globally and the capacity to obtain accurate results requires authentication using various techniques. Applications are mostly site specific due to differences in installation. The present study examines the accuracy of intertidal topographic data derived from a video camera system compared to data acquired with unmanned aerial vehicle

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Reid, DD, and M. Krogh. "Assessment of catches from Protective Shark meshing off NSW beaches between 1950 and 1990." Marine and Freshwater Research 43, no. 1 (1992): 283. http://dx.doi.org/10.1071/mf9920283.

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Mesh netting of beaches along the more populous sections of the NSW coast for the protection of swimmers and surfers against shark attack has been carried out since 1937 in Sydney and since 1949 in Newcastle and Wollongong. Data for the catches of sharks by taxonomic groups are presented for the period from 1950 to 1990. Although there were large year-to-year fluctuations, neither catch nor catch per unit effort showed any discernible trend for the period up to 1972. In 1973, the catches of all taxonomic groups increased substantially following changes to the specifications of nets and their d

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Bella, M. C., and J. D. Fish. "Fecundity and Seasonal Changes in Reproductive Output of Females of the Gravel Beach Amphipod, Pectenogammarus Planicrurus." Journal of the Marine Biological Association of the United Kingdom 76, no. 1 (1996): 37–55. http://dx.doi.org/10.1017/s0025315400029003.

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Pectenogammarus planicrurus Reid (Crustacea: Amphipoda) is an inhabitant of unstable gravel beaches. The reproductive output of females of this species was studied at Aberystwyth, on the west coast of Wales. There was marked seasonal variation in the size of eggs: the mean volume of eggs at an early stage of embryonic development ranged from 0·023 mm3 in summer to 0·030 mm3 in winter. Egg size was negatively related to brood size, but seasonal variation in brood size was greater than could be accounted for by egg size alone. Mean brood size ranged from 1·4 eggs in winter to 5·9 eggs in summer.

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Roest, Bart, Sierd de Vries, Matthieu de Schipper, and Stefan Aarninkhof. "Observed Changes of a Mega Feeder Nourishment in a Coastal Cell: Five Years of Sand Engine Morphodynamics." Journal of Marine Science and Engineering 9, no. 1 (2021): 37. http://dx.doi.org/10.3390/jmse9010037.

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Recently, mega feeder nourishments have been proposed as a new strategy to nourish sediment-starving beaches. This strategy involves the placement of a large, concentrated sediment volume at a single location along the coast. Wind, waves and currents act as the natural agents to spread the sediment alongshore over the course of years to decades. This article presents the morphological development of the first full-scale implementation of this strategy, examining the 20 × 106 m3“Sand Engine” feeder nourishment and its impact on adjacent coastal sections. The analysis is based on 37 high-resolut

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Taiani, Luana, Lindino Benedet, Lucas Silveira, Stephen Keehn, Nicole Sharp, and Rafael Bonanata. "SAND BORROW AREA DESIGN REFINEMENT TO REDUCE MORPHOLOGICAL IMPACTS: A CASE STUDY OF PANAMA CITY BEACH, FLORIDA, USA." Coastal Engineering Proceedings 1, no. 33 (2012): 103. http://dx.doi.org/10.9753/icce.v33.sediment.103.

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The coastline of Panama City Beach, Florida (FL) has been stricken by several hurricanes during the last decades, especially after 1995. In 1998, beach nourishment projects started being implemented to address the impacts of the hurricanes on the coast. Sources of sand for that purpose are commonly from borrow areas located just offshore of the nourishment site. Impacts of these nearshore dredge pits on adjacent coasts will depend on incident wave conditions, nourishment sediment characteristics and some features of the borrow pit (distance from the shore, depth of cut, cross-shore extent, alo

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Panalaran, Satriyo, Trika Agnestasia Br Tarigan, and Hendra Achiari. "Analisis Regresi Pada Tren Perubahan Garis Pantai di Pantai Krui dari Digitasi Citra Landsat." Journal of Science and Applicative Technology 3, no. 1 (2019): 26. http://dx.doi.org/10.35472/jsat.v3i1.199.

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Krui is a capital of Pesisir Barat Regency of Lampung Province which has important values on residential areas, business centers, government centers, and tourism destination. Kruis coast is adjacent to the Indian Ocean, which has the high wave characteristic cause the dynamic coastal process similarly to other sandy beaches on the west coast of Sumatera Island. The coastal process can be shown in the form of either coastline accretion due to sedimentation or shoreline reduction caused by the phenomenon of erosion and abrasion. The coastal process can be observed as a natural process to achieve

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