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Registros recuperados: 20
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What we have lost and cannot become: societal outcomes of coastal erosion in southern Belize Ecology and Society
Karlsson, Marianne; Center for International Climate and Environmental Research - Oslo (CICERO); Department of International Environment and Development Studies, Norwegian University of Life Sciences; marianne.karlsson@nmbu.no; van Oort, Bob; Center for International Climate and Environmental Research - Oslo (CICERO); bvo@cicero.oslo.no.
Countries in the Caribbean region, including Belize, are vulnerable to coastal erosion. Experts and scholars have assessed the effects of coastal erosion in the region in physical and economic terms, most often from a sectoral perspective. However, less attention has been directed to the localized and nonquantifiable effects of coastal erosion in the region. We address this research gap by presenting an empirical study of a village in southern Belize that has experienced significant coastal erosion since the mid-1980s. Drawing on interviews, a mapping exercise, and a literature review, we analyze how villagers are experiencing the impacts of coastal change, and what the resulting risks and losses mean for the socioeconomic stability of the village. We...
Tipo: Peer-Reviewed Reports Palavras-chave: Adaptation; Belize; Caribbean; Coastal erosion; Risk and loss.
Ano: 2015
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Lutte contre l'érosion littorale à l'échelle régionale ArchiMer
Person, Béatrice.
Ce rapport analyse les causes de l'érosion de cinq sites: - la baie de Wissant (Nord Pas de Calais) ; - la Tranche sur Mer en Vendée ; - la Conche des Baleines (Ile de Ré) ; - la Palmyre en Charente Maritime ; - le Cap Ferret en Aquitaine. Les sites sont ensuite comparés entre eux. L'intérêt d'une approche régionale avec ses avantages et ses limites est ensuite décrit.
Tipo: Text Palavras-chave: Erosion côtière; Études régionales; Coastal erosion; Regional studies.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00107/21783/19356.pdf
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Systematic Review Shows That Work Done by Storm Waves Can Be Misinterpreted as Tsunami-Related Because Commonly Used Hydrodynamic Equations Are Flawed ArchiMer
Cox, Rónadh; Ardhuin, Fabrice; Dias, Frédéric; Autret, Ronan; Beisiegel, Nicole; Earlie, Claire S.; Herterich, James G.; Kennedy, Andrew; Paris, Raphaël; Raby, Alison; Schmitt, Pal; Weiss, Robert.
Coastal boulder deposits (CBD), transported by waves at elevations above sea level and substantial distances inland, are markers for marine incursions. Whether they are tsunami or storm deposits can be difficult to determine, but this is of critical importance because of the role that CBD play in coastal hazard analysis. Equations from seminal work by Nott (1997), here referred to as the Nott Approach, are commonly employed to calculate nominal wave heights from boulder masses as a means to discriminate between emplacement mechanisms. Systematic review shows that this approach is based on assumptions that are not securely founded and that direct relationships cannot be established between boulder measurements and wave heights. A test using an unprecedented...
Tipo: Text Palavras-chave: Coastal boulder deposits; Storm waves; Tsunami; Hydrodynamic equations; Coastal erosion; Coastal hazard; Coastal geomorphology; Wave modeling.
Ano: 2020 URL: https://archimer.ifremer.fr/doc/00610/72237/71040.pdf
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A comprehensive hydro-geomorphic study of cliff-top storm deposits on Banneg Island during winter 2013–2014 ArchiMer
Autret, Ronan; Dodet, Guillaume; Fichaut, Bernard; Suanez, Serge; David, Laurence; Leckler, Fabien; Ardhuin, Fabrice; Ammann, Jerome; Grandjean, Philippe; Allemand, Pascal; Filipot, Jean-francois.
Large clastic cliff-top storm deposits (called CTSDs) are one of the most remarkable signatures that characterizes extreme storm wave events on coastal cliffs. Hence, the study of CTSDs is of key importance for understanding and predicting the impacts of extreme storm wave events on rocky coasts or establishing proxies for storm intensity. The present study uses new data including hydrodynamic measurements in both deep and intertidal waters, and records of CTSDs displacement and deposition across Banneg Island during the stormy winter 2013–2014. Two drone-based surveys were carried out in January 2013 (pre-storms) and in April 2014 (post-storms). In addition, complementary field observations were carried out during the winter, providing a comprehensive and...
Tipo: Text Palavras-chave: Cliff-top storm deposit; Block transport; Extra-tropical cyclone; Run-up; Coastal erosion; Brittany.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00353/46411/46139.pdf
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Rapport national sur l'état de l'environnement marin et côtier OceanDocs
Le domaine maritime sénégalais s’étend de 18°00 N, -20°00 W, -16°30 E, 12°15 S ; la presqu’île du Cap-Vert située entre 14°30 N et 15°00 N le divise en deux zones aux caractéristiques topographiques distinctes. Au nord, le plateau continental est peu étendu vers le large et orienté Nord-Nord/Est. Au sud de la presqu’île, le plateau s’élargit et le talus continental est orienté nord-sud. L’embouchure du fleuve Sénégal au Sénégal au Nord de la presqu’île du Cap-Vert et celles de la Gambie et de la Casamance au Sud constituent également un trait marquant de cette région. Les travaux réalisés au Sénégal en océanographie ont montré : - l’existence de deux saisons marines aux caractéristiques très différentes qui se succèdent : une saison chaude de juillet à...
Tipo: Report Palavras-chave: Deltas; Ecosystems; Mangroves; Coastal erosion; Marine environment; Marine mammals; Shark fisheries; Turtle fisheries; Aquatic birds; Fishermen; Migrations; Flora; Fisheries; Marine pollution; Fishing nets; Climatic changes; Deltas; Ecosystems; Marine environment; Aquatic birds; Fishermen; Fisheries; Mangroves; Coastal erosion; Flora; Fishing nets; Http://aims.fao.org/aos/agrovoc/c_2170; Http://aims.fao.org/aos/agrovoc/c_2482; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_8898; Http://aims.fao.org/aos/agrovoc/c_2936; Http://aims.fao.org/aos/agrovoc/c_2934; Http://aims.fao.org/aos/agrovoc/c_16190; Http://aims.fao.org/aos/agrovoc/c_9949; Http://aims.fao.org/aos/agrovoc/c_2983; Http://aims.fao.org/aos/agrovoc/c_2951.
Ano: 1922 URL: http://hdl.handle.net/1834/2884
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Remote Sensing for Studying Nearshore Bottom Morphology and Shoreline Changes OceanDocs
Shaghude, Y.W..
The major objective of the present study is to demonstrate how remote sensing approach can be used for studying nearshore bottom morphology and shoreline changes in coastal Tanzania. Two study sites were used. In the first site, remote sensing satellite Landsat Thematic Mapper data was evaluated against known water depths from conventional echo sounding measurement taken on the eastern side of the channel. The correlation between the remote sensing data and the echo sounding mesurement was rather satisfactory, suggesting that the approach can roughly be used to investigate sea bottom morphology in the nearshore areas. In the second study site, remote sensing satellite data from Landsat Thematic Mapper and Enhanced Thematic Mapper were used to investigate...
Tipo: Journal Contribution Palavras-chave: Remote sensing; Sediments; Coastal erosion; Shorelines.
Ano: 2004 URL: http://hdl.handle.net/1834/195
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IOC-UNEP-WMO-SAREC Planning Workshop on an Integrated Approach to Coastal Erosion, Sea-Level Changes and their Impacts OceanDocs
Tipo: Report Palavras-chave: Coastal erosion; Sea level changes.
Ano: 1994 URL: http://hdl.handle.net/1834/899
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Sedimentation, transport und erosion an der Nordküste Kolumbiens zwischen Barranquilla und der Sierra Nevada de Santa Marta OceanDocs
Erffa, A. Frhr. von.
El Río Magdalena desemboca actualmente en el mar Caribe, por el extremo occidental de este territorio y ha formado varios deltas, estos se han originado en tres fases comprendidas en el cuaternario reciente. Los dos más antiguos quedaron destruidos por la erosión y solamente son detectados en la morfología submarina. El delta siguiente en antigüedad, alcanzó su mayor amplitud hace 2.400 años aproximadamente La etapa de destrucción de este delta se inició por aquellos tiempos, y aún continua en actividad. El delta más reciente se está formando al frente de la boca actual del Río Magdalena. Se describen los rasgos topográficos, sedimentológicos y la distribución de la fauna bentónica, en los sectores NE y E de la plataforma submarina de San Andrés. La...
Tipo: Journal Contribution Palavras-chave: Coastal lagoons; Estuaries; Geology; Sediments; Erosion; Coastal erosion; Sediment transport; Estuaries; Geology; Erosion; Coastal lagoons; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_2673; Http://aims.fao.org/aos/agrovoc/c_3232; Http://aims.fao.org/aos/agrovoc/c_2651; Http://aims.fao.org/aos/agrovoc/c_1697; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 1973 URL: http://hdl.handle.net/1834/3254
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Sidementological and environmental impacts of development projects along the coast of hurghada, red sea, egypt OceanDocs
Mansour, A.M.; Mohamed, A.W.; El Dien, G.K.; Sayed, S.M..
The studies areas lay in Hurghada region include different aspects of coastal development. It represents different environmental problems and threats to the Red Sea ecosystem and geosystem. They include two tourist projects, a central marina for yachts and fishermen and a site for oil exploration and production. All sits have implemented Environmental Impact Assessment studies (EIA). Unfortunately, dredging and landfilling caused severe coast destruction and shoreline change in these areas. All sites have accurately surveyed and environmental problems cited, oceanographic parameters were measured, and 109 samples were collected from the beach and the tidal flat of four sits forming the study area. Grain size, carbonates and organic matter contents, major...
Tipo: Journal Contribution Palavras-chave: Field Study; Environmental conditions; Sedimentology; Coastal erosion.
Ano: 2007 URL: http://hdl.handle.net/1834/1904
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L'Erosion du littoral dans le Golfe du Bénin : un example de perturbation d'un équilibre morphodynamique. OceanDocs
Rossi, G..
La côte du golfe du Bénin, depuis le pôle d'apporte de ..Volta jusqu'au Nigéria, constitue un geosystème dont la stabilité morpho-dynamique a été bouleversée par une série d'aménagement : le barrage d'Akossombo sur la Volta, les ports de Lomé et de Cotonou....
Tipo: Journal Contribution Palavras-chave: Coastal erosion; Coastal morphology; Dynamical oceanography; Beachrock; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 1989 URL: http://hdl.handle.net/1834/1224
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Geomorfología y dinámica costera OceanDocs
Codignotto, J..
In Argentine coastal areas, geomorphological changes are directly related to relative continental uplifts and falls and to seaward and landward displacement of the coastline. Accretional and erosional phenomena are produced by displacement of the coastline in horizontal way. The resultant structures can be represented in two principal sectors. Backward motion or retrogradation of about 15 km were estimated for the Strait of Magellan, over an area of 500 km 2.Otherwise, large accretional phenomena were recognized in the north,with a 60 km seaward displacement, equivalent to 4,000 km2 in the last7.000 years. Variation in tidal regime and amplitude is reflected in the coincidence of the boundary between accretion and erosional sectors. Two principal nearshore...
Tipo: Book Section Palavras-chave: Coastal morphology; Coastal erosion; Sea level changes; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 1997 URL: http://hdl.handle.net/1834/1721
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"Operationalizing" sustainable coastal development / Alexandria-Egypt. OceanDocs
Riad, Samir.
The coastal zone - where land meets sea and where fresh and salt waters mix - contains many of the earth's most complex, diverse and productive ecological systems. It functions as a protective buffer and filter between the land and the sea, and is increasingly valued for recreational and aesthetic purposes....
Tipo: Working Paper Palavras-chave: Coastal erosion; Interagency cooperation; Underwater museum; Cultural heritage; Coastal zone management; Sustainable development.
Ano: 1999 URL: http://hdl.handle.net/1834/856
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Du modele à la nature : l'exemple de la côte Togolaise OceanDocs
Rossi, G.; Baritse, L.; Blivi, A.B..
La côte togolaise, basse et sableuse, soumise è une violente érosion par suite d'une série d'erreurs d'aménagements, a fait l'objet en 1987-1988 d'importants travaux destin's à protéger sur 15 km la ville d'Aného et l'usine de phosphates de Kpémé, principale industrie du pays. La préparation de ces travaux, de protection, rendus indispensables par la gravité des enjeux économiques et sociaux, a nécessité des études hydrologiques et sédimentologiques très détaillées, ainsi que la construction et l'exploitation par un bureau d'étude spécialisé de deux importants modèles physique (32 x 20 m) destinés à optimiser le dispositif de protection et à déterminer l'évolution du trait de côte sur une période de 25 ans...
Tipo: Other Palavras-chave: Coastal zone; Sedimentology; Coastal erosion; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 1991 URL: http://hdl.handle.net/1834/1228
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Análisis de los procesos costeros en La Libertad OceanDocs
Vera, L..
Para el presente estudio de procesos costeros se han considerado los principales parámetros oceanográficos, se ha recopilado y obtenido información producto de algunos años de mediciones, de los cuales se obtuvieron las normales y tendencias de comportamiento. Se analiza toda la información y se aplican las ecuaciones correspondientes para el cálculo de los procesos costeros, mediante tres métodos distintos, propuestos por Galvin, Komar y Cerc, obteniendo valores que se comparan con el fin de establecer las diferencias basándose en la práctica y en estudios realizados con anterioridad. De acuerdo a los resultados y a los análisis realizados en las costas ecuatorianas, se deduce que el método más idóneo a aplicarse es el de Komar. Finalmente se analizan...
Tipo: Journal Contribution Palavras-chave: Coastal erosion; Oceanographic data; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 2000 URL: http://hdl.handle.net/1834/2231
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Dynamique socio-environnementale et gestion des ressources halieutiques des régions côtières du Sénégal : l’exemple de la pêche artisanale: Rapport final OceanDocs
Niang, Ndeye Astou.
UNESCO, bourses MAB/Jeunes scientifiques
Tipo: Theses and Dissertations Palavras-chave: Artisanal fishing; Artificial reefs; Ocean currents; Swell; Coastal erosion; Mesh regulations; Cephalopod fisheries; Overfishing; Hydroclimate; Environment management; Safety regulations; Aquaculture.
Ano: 2008 URL: http://hdl.handle.net/1834/4998
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Evolución morfológica de la costa en la Península de Santa Elena: evidencias de plataformas marinas y socavones superpuestos OceanDocs
Santana, E.; Dumont, J.F.; Armas, V.; Burbano, L.; Gutiérrez, L.; Valdez, F..
En esta publicación se presentarán los elementos de morfología costera observados en la costa norte de la Península de Santa Elena. A largo plazo esta es una costa con alta variabilidad, pues estaba sumergida o compuesta por varias islas durante el cuaternario reciente (Pedoja, 2003). Dos preguntas básicas han sido planteadas en la ejecución de este estudio, la primera responder si esta alta variabilidad a largo plazo esta reflejada en la costa actual, y la segunda, si las morfologías costeras de plataformas litorales de abrasión son parte del proceso de la evolución costera.
Tipo: Journal Contribution Palavras-chave: Cliffs; Uplift; Coasts; Coastal morphology; Geomorphology; Coastal erosion; Coasts; Geomorphology; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_1700; Http://aims.fao.org/aos/agrovoc/c_3233; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 2004 URL: http://hdl.handle.net/1834/2392
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Los efectos del fenómeno El Niño en la ocurrencia de una alta tasa de erosión costera en el sector de Punta Gorda, Esmeraldas OceanDocs
Dumont, J.F.; Santana, E.; King, A..
Los objetivos de este estudio fueron: - Cuantificar el retroceso de la línea de costa en un período de 30 años en el área de Punta Gorda. - Estudiar la formación de la plataforma de abrasión relacionada con este retroceso. - Estudiar el proceso de erosión para establecer su continuidad y características.
Tipo: Journal Contribution Palavras-chave: El Nino phenomena; Coastal erosion; Coastal morphology; Landslides; Cliffs; Coastal erosion; Landslides.
Ano: 2001 URL: http://hdl.handle.net/1834/2272
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Rapport national sur l'état de l'environnement marin et côtier OceanDocs
Le domaine maritime sénégalais s’étend de 18°00 N, -20°00 W, -16°30 E, 12°15 S ; la presqu’île du Cap-Vert située entre 14°30 N et 15°00 N le divise en deux zones aux caractéristiques topographiques distinctes. Au nord, le plateau continental est peu étendu vers le large et orienté Nord-Nord/Est. Au sud de la presqu’île, le plateau s’élargit et le talus continental est orienté nord-sud. L’embouchure du fleuve Sénégal au Sénégal au Nord de la presqu’île du Cap-Vert et celles de la Gambie et de la Casamance au Sud constituent également un trait marquant de cette région. Les travaux réalisés au Sénégal en océanographie ont montré : - l’existence de deux saisons marines aux caractéristiques très différentes qui se succèdent : une saison chaude de juillet à...
Tipo: Report Palavras-chave: Deltas; Ecosystems; Mangroves; Coastal erosion; Marine environment; Marine mammals; Shark fisheries; Turtle fisheries; Aquatic birds; Fishermen; Migrations; Flora; Fisheries; Marine pollution; Fishing nets; Climatic changes; Deltas; Ecosystems; Marine environment; Aquatic birds; Fishermen; Fisheries; Mangroves; Coastal erosion; Flora; Fishing nets.
Ano: 2002 URL: http://hdl.handle.net/1834/2884
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Expanding the National Flood Insurance Program to Cover Coastal Erosion Damage AgEcon
Keeler, Andrew G.; Kriesel, Warren; Landry, Craig E..
This paper uses the results of a nationwide survey of coastal property owners to estimate the demand for insurance against erosion damage. The National Flood Insurance Program (NFIP) does not technically cover such damage, although in practice there is considerable uncertainty about this point. The ability to insure against such losses has implications for the choice of beach management strategies and for NFIP management. We find significant demand for insurance at prices in the range of current flood insurance premiums, although median willingness to pay appears to be less than cost of providing such insurance.
Tipo: Journal Article Palavras-chave: Coastal erosion; Insurance; Risk; Q24; G22; H41.
Ano: 2003 URL: http://purl.umn.edu/43199
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Coastal Erosion Management from a Community Economics Perspective: The Feasibility and Efficiency of User Fees AgEcon
Kriesel, Warren; Landry, Craig E.; Keeler, Andrew G..
Coastal communities cannot depend on funding from the state or federal government to maintain high-quality beaches that benefit the public and attract tourist revenues. This article investigates the feasibility and efficiency of beach improvement projects at two Georgia barrier islands through the alternative funding mechanisms of general-revenue financing and user fees. Benefits are calculated from observable sources. The analyses presented support beach improvement as an effective policy on both islands under all scenarios considered.
Tipo: Journal Article Palavras-chave: Beach nourishment; Coastal erosion; Relocation; User fees; Q26; R51; R53.
Ano: 2005 URL: http://purl.umn.edu/43520
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