scholarly journals An Integrated Approach to Analyze Sedimentary Stock and Coastal Erosion in Vulnerable Areas: Resilience Assessment of San Vicenzo’s Coast (Italy)

Water ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 805
Author(s):  
Francesco Bianco ◽  
Paolo Conti ◽  
Salvador García-Ayllon ◽  
Enzo Pranzini
Keyword(s):  
Coastal Erosion ◽  
Integrated Approach ◽  
Coastal Communities ◽  
Sea State ◽  
Erosion Risk ◽  
Geomorphic Features ◽  
Active Processes ◽  
Resilience Assessment ◽  
Morphological Patterns

The assessment of coastal erosion risk is a major challenge, since environmental and geomorphic features, together with sea state parameters, can seriously change the configuration of coastal areas. In addition, the anthropic actions of the coastal communities may also drastically modify the configuration of the coast in vulnerable areas. In this study, a linkage between regional mapping guidelines and national geological cartography procedures is presented as a meaningful tool in the geomorphic trends analysis for the integrated mapping of the main morphological patterns of San Vincenzo’s coastal area, in the region of Tuscany (Italy). Comparing and joining different procedures—which have different scales and topics—requires adapting the fields and the information provided in maps and databases. In this case study, a GIS morpho-sedimentological approach is developed. This GIS approach enables us to cover several issues simultaneously, such as the representation of coastal active processes, the adaptation of regional and national cartography to coastal erosion assessment, and lastly the calculation of the sedimentary stock analysis, since it represents the first attribute of coasts to be preserved in a resilience-oriented integrated assessment.

Relocation as an Adaptation to Sea-Level Rise: Valuable Lessons from the Narikoso Village Relocation Project in Fiji

2019 ◽  
Vol 3 (1) ◽  
pp. 1-7 ◽  
Author(s):  
Amanda Bertana
Keyword(s):  
Climate Change ◽  
Sea Level ◽  
Coastal Erosion ◽  
Prime Minister ◽  
Adaptation Strategy ◽  
Coastal Communities ◽  
Financial Resources ◽  
Sea Levels ◽  
The Village

Relocation as an adaptation strategy to coastal degradation remains on the fringes of climate change discourse. Yet, as sea levels are projected to rise, relocating is an inevitable response for vulnerable coastal communities worldwide. In fact, some Fijian villages are facing such severe coastal erosion that they have already begun the process of shifting to higher ground, and many more villages throughout the islands have been slated for relocation. This case study is based on the planned relocation efforts of Narikoso village on Ono Island in Kadavu, Fiji. In Narikoso, regional NGOs, INGOs, and local and national government are working with the community to relocate the village inland. The process of moving the community began in 2012 when Prime Minister Bainimarama sent the Fiji military to Ono Island to clear land for the new village. It came to an abrupt stop due to a lack of funding and ecological degradation caused by the preparation for the new village site. Since the relocation process began, a myriad of issues have arisen ranging from concerns regarding community engagement, availability of financial resources, and resistance to moving inland.

scholarly journals Exploring the Relationship between River Discharge and Coastal Erosion: An Integrated Approach Applied to the Pisa Coastal Plain (Italy)

2021 ◽  
Vol 13 (2) ◽  
pp. 226
Author(s):  
Monica Bini ◽  
Nicola Casarosa ◽  
Marco Luppichini
Keyword(s):  
Coastal Plain ◽  
Coastal Erosion ◽  
Integrated Approach ◽  
Landsat Images ◽  
Sea State ◽  
Discharge Data ◽  
A Value ◽  
History Of ◽  
The Relationship ◽  
Sentinel 2

Coastal erosion coupled with human-induced pressure has severely affected the coastal areas of the Mediterranean region in the past and continues to do so with increasing intensity today. In this context, the Pisa coastal plain shows a long history of erosion, which started at the beginning of the nineteenth century. In this work, shoreline positions derived from historical maps as well as airborne and DGPS (Differential Global Positioning System) surveys were analyzed in a GIS (Geographic Information System) environment to identify the main changes that have occurred in the last 142 years. These analyses were compared with 100 years of discharge data measured at the S. Giovanni alla Vena gauge to identify a possible correlation between the two sets of information. Finally, Sentinel-2 and Landsat images were studied to identify the dispersion of sediments transported by the Arno River. In particular, we found a minimum of fluvial discharge in the years 1954, 1978, and 2012 corresponding to a peak of erosion, while the reduced erosion rate and the fluvial discharge increased in the years 1928–1944, 1954–1975, and after 2012. The qualitative anticorrelation between discharge and erosion is particularly true if we take into account flood events with a value of discharge greater than 700 m3/s, which are those able to transport suspended sand. The remote sensing analyses of Sentinel-2 images acquired during the floods of 6 February 2019 and 3 December 2019, under the most typical wind and sea state conditions for this area (wind coming from SW and storms coming from W/SW and SW) show that during these events a consistent amount of sediment was transported by the river. However, the majority of these sediments are not deposited along the coastline but are dispersed offshore. Grain-size analyses on the transported sediment show that plumes are formed by coarse-to-medium sand, suitable for coastal nourishment, but the reconstructed sediment dispersion lines show that some sectors of the coastline are constantly in the shade. These areas are the most affected by erosion.

scholarly journals Multivariate return periods of sea storms for coastal erosion risk assessment

2012 ◽  
Vol 12 (8) ◽  
pp. 2699-2708 ◽  
Author(s):  
S. Corbella ◽  
D. D. Stretch
Keyword(s):  
Return Period ◽  
Coastal Erosion ◽  
Design Method ◽  
Return Periods ◽  
Current Form ◽  
Erosion Risk ◽  
Storm Characteristics ◽  
Relationship Of ◽  
The Relationship

Abstract. The erosion of a beach depends on various storm characteristics. Ideally, the risk associated with a storm would be described by a single multivariate return period that is also representative of the erosion risk, i.e. a 100 yr multivariate storm return period would cause a 100 yr erosion return period. Unfortunately, a specific probability level may be associated with numerous combinations of storm characteristics. These combinations, despite having the same multivariate probability, may cause very different erosion outcomes. This paper explores this ambiguity problem in the context of copula based multivariate return periods and using a case study at Durban on the east coast of South Africa. Simulations were used to correlate multivariate return periods of historical events to return periods of estimated storm induced erosion volumes. In addition, the relationship of the most-likely design event (Salvadori et al., 2011) to coastal erosion was investigated. It was found that the multivariate return periods for wave height and duration had the highest correlation to erosion return periods. The most-likely design event was found to be an inadequate design method in its current form. We explore the inclusion of conditions based on the physical realizability of wave events and the use of multivariate linear regression to relate storm parameters to erosion computed from a process based model. Establishing a link between storm statistics and erosion consequences can resolve the ambiguity between multivariate storm return periods and associated erosion return periods.

scholarly journals Towards Integration of Climate Disaster Risk and Waste Management: A Case Study of Urban and Rural Coastal Communities in the Philippines

2021 ◽  
Vol 13 (4) ◽  
pp. 1624
Author(s):  
Nagisa Yoshioka ◽  
Marlon Era ◽  
Daisuke Sasaki
Keyword(s):  
Climate Change ◽  
Natural Hazards ◽  
Storm Surges ◽  
Integrated Approach ◽  
Disaster Risk ◽  
The Philippines ◽  
Coastal Communities ◽  
Coastal Adaptation ◽  
Environmental Threat

Coastal communities are exposed to various environmental risks, including natural hazards such as storm surges and flooding. As climate change has escalated, the management of such dangers has grown in importance and urgency, particularly among states with long coast lines. Climate change adaptation and disaster risk reduction have attracted attention from policymakers in Southeast Asia, which is one of the most disaster-prone regions. Coastal community resilience, however, is not determined by climate and disaster risks alone, but by other factors as well. Waste pollution is an environmental threat that may affect those who are dependent on marine resources. These multiple factors contribute to coastal resilience and are, in fact, addressed separately as different issues; therefore, conflicts or synergies in respective countermeasures often become oversights in the policy-making processes. Through a case study of key Philippine stakeholders, including fishing communities, we identified impacts of climate change, natural hazards, and waste on the livelihoods of community residents and the interplay among these factors. We aim to better understand the situation on the ground and contribute by improving policy recommendations for coastal communities. An integrated approach to enhance coastal adaptation is critical for maximising the effectiveness of the limited resources of communities.

Global weights of coastal erosion risk factors using AHP method: A case study of Setiu Wetlands

2017 ◽  
Author(s):  
Azzah Awang ◽  
Ahmad Termimi Ab Ghani ◽  
Lazim Abdullah ◽  
Muhammad Fadhli Ahmad
Keyword(s):  
Risk Factors ◽  
Coastal Erosion ◽  
Ahp Method ◽  
Erosion Risk

Commitment To Coax Subtleties From Seismic By Means Of An Intelligent Integrated Approach - A Case Study

2009 ◽  
Author(s):  
Vincent Wai Tin Kong ◽  
Alexis Carrillat ◽  
John Ross Gaither ◽  
Ahmad Bukhari Ibrahim ◽  
Irmawaty Abdullah ◽  
...  
Keyword(s):  
Integrated Approach

TERRITÓRIO EM DISPUTA NO LITORAL CEARENSE: A RESISTÊNCIA/INOVAÇÃO DO TURISMO COMUNITÁRIO DIANTE DAS AÇÕES E CONTRADIÇÕES DO ESTADO

GEOgraphia ◽  
2018 ◽  
Vol 20 (42) ◽  
pp. 101
Author(s):  
Lenilton Francisco de Assis
Keyword(s):  
State Government ◽  
Coastal Communities ◽  
Northeastern Brazil ◽  
Public Investments ◽  
Living Space ◽  
Tourism Geography ◽  
Community Tourism ◽  
Worldwide Network ◽  
Low Pay

Resumo: O litoral cearense do Nordeste brasileiro já registra várias experiências exitosas de turismo comunitário. Porém, o governo do estado continua preterindo esse potencial e subsidiando a instalação de megaempreendimentos que geram poucos empregos com baixas remunerações. Assim, as comunidades litorâneas que protagonizam o turismo comunitário ficam duplamente penalizadas, pois são deixadas à margem das políticas de turismo e seus territórios viram alvos da cobiça de visitantes atraídos pelo marketing dos investimentos públicos realizados. Tomando como estudo de caso a comunidade de Tatajuba, no município de Camocim, no Ceará, este artigo analisa a luta dos povos do mar pelo território, luta essa que não se traduz apenas na defesa do espaço de vivência, mas também na formação de uma rede de territórios solidários articulados ao mundo, que resiste/inova com a proposta do turismo comunitário.  Palavras-chave: Turismo. Território. Turismo comunitário. Geografia do turismo. Tatajuba. DISPUTED TERRITORY ON THE COAST OF CEARÁ: THE STRENGTH AND INNOVATION OF COMMUNITY TOURISM ON THE ACTIONS AND CONTRADICTIONS OF STATEAbstract: The cearense coast of Northeastern Brazil already registers several successful experiences of Community tourism. However, the state government is still neglecting this potential and subsidizing the installation of mega-enterprises that generate few jobs with low pay. Thus, the coastal communities who star the community tourism are doubly penalized because they are abandoned by tourism policies and their territories become targets of greed of visitors attracted by the marketing of public investments. Taking as a case study the community of Tatajuba, in Camocim (municipality, Ceará, Brazil), this article examines the struggle of the peoples of the sea through the territory. This fight not only translates on defense of the living space, but also it represents the formation of a worldwide network of solidary territories that resists and innovates with the proposal of community tourism.Keywords: Tourism. Territory. Community tourism. Tourism geography. Tatajuba. DISPUTA DE TERRITÓRIO EN LA COSTA DE CEARÁ: LA FUERZA/INNOVACIÓN DEL TURISMO COMUNITÁRIO SOBRE LAS ACCIONES Y LAS CONTRADICCIONES DEL ESTADOResumen: El turismo comunitario ya registra varias experiencias exitosas em la costa de Ceará en el noreste de Brasil. Sin embargo, el gobierno del estado continúa pasando por encima de este potencial y subvencionando la instalación de mega-empresas que generan pocos empleos con bajos salarios. Por lo tanto, las comunidades costeras que ofrecen el turismo comunitario son doblemente penalizadas porque quedan excluidas de las políticas de turismo y sus territorios se convierten en objeto de la codicia de los visitantes atraídos por la comercialización de las inversiones públicas. Tomando como caso de estudio la comunidad Tatajuba, en el municipio de Camocim, este artículo examina la lucha de los pueblos del mar por el territorio, lucha que no sólo se traduce en la defensa del espacio de vida, sino también en la formación de una red de territorios articulado con el mundo que resiste e innova con la propuesta del turismo comunitario.Palabras clave: Turismo. Territorio. Turismo comunitario. Geografia del turismo. Tatajuba.

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