A Topo-Bathymetric Survey of the Morphological Evolution of a Microtidal Barred Beach. Case Study: The Coastal Prism of Korba (Mediterranean Coast; Northeast of Tunisia)

2019 ◽  
pp. 103-116
Author(s):  
Zouhour Yahyaoui ◽  
François Sabatier ◽  
Noamen Rebai ◽  
Saâdi Abdeljaouad
Keyword(s):  
Morphological Evolution ◽  
Mediterranean Coast ◽  
Bathymetric Survey

The formation of the Egyptian Arabic dialect area

2018 ◽  
Author(s):  
Peter Behnstedt ◽  
Manfred Woidich
Keyword(s):  
Mediterranean Coast ◽  
External Factors ◽  
Internal Factors ◽  
Dialect Contact ◽  
Historical Information ◽  
Egyptian Arabic ◽  
Transitional Area ◽  
The Mediterranean

This chapter deals with the sedentary dialects of Egypt, excluding the bedouin dialects of Sinai and the Libyan bedouin dialects on the Mediterranean coast. It attempts to combine historical information on the settlement of Arabic tribes in Egypt with accounts of present-day Egyptian dialects and those of the regions from which those tribes came, initially Yemen and the Levant, later Hejaz, and then the Maghreb. The diversity of the Egyptian Arabic dialect area is partly explained by external factors, namely different layers of arabization over centuries. It is also explained by internal factors, namely dialect contact, which implies phenomena such as hyperdialectisms. Egypt is seen as a dialect area in its own right, but one that shows phenomena of a transitional area between the Arab East and West. A case study of Alexandria deals with dialect death. The role of substrata is discussed, but is considered negligible.

scholarly journals On the Relation between Beach-Dune Dynamics and Shoal Attachment Processes: A Case Study in Terschelling (NL)

2020 ◽  
Vol 8 (7) ◽  
pp. 541
Author(s):  
Filipe Galiforni-Silva ◽  
Kathelijne M. Wijnberg ◽  
Suzanne J. M. H. Hulscher
Keyword(s):  
Morphological Evolution ◽  
Coastal Dunes ◽  
Annual Data ◽  
Aeolian Transport ◽  
Cellular Automata Model ◽  
Beach Width ◽  
Ebb Tidal Delta ◽  
Dune Dynamics

Inlet-driven processes are capable of modifying the adjacent shoreline. However, few studies have attempted to understand how these changes affect coastal dunes. The present study aims to understand how shoreline changes induced by shoal attachment affect coastal dunes. A barrier island in the Netherlands is used as a case study. Both bathymetric and topographic annual data were analysed, together with the application of a cellular automata model for dune development. The objective of the model is to explore idealised scenarios of inlet-driven shoreline movements. With the model, ten different scenarios were examined regarding beach width increase and rate of alongshore spreading of the shoal. Field data showed that, for the case study, dune volume and shoal attachments could not be directly linked. Instead, rates of dune volume change differed significantly only due to long-term ebb-tidal delta evolution. Such morphological evolution oriented the beach towards the main wind direction, increasing overall aeolian transport potential. Modelling results showed that shoals significantly increased dune volumes only on three out of ten scenarios. This suggests that beach width increase, and rate of alongshore sediment spreading, determine whether the shoal will influence dune growth. Therefore, within the studied time-scale, local rates of dune growth are only increased if shoals are capable of increasing the beach width significantly and persistently.

Establishing the occurrence and profile of polycyclic aromatic hydrocarbons in marine sediments: The eastern Mediterranean coast of Spain as a case study

2019 ◽  
Vol 142 ◽  
pp. 206-215 ◽  
Author(s):  
R.A. González-Fuenzalida ◽  
R. Herráez-Hernández ◽  
J. Verdú-Andrés ◽  
A. Bouzas-Blanco ◽  
A. Seco-Torrecillas ◽  
...  
Keyword(s):  
Polycyclic Aromatic Hydrocarbons ◽  
Marine Sediments ◽  
Aromatic Hydrocarbons ◽  
Eastern Mediterranean ◽  
Mediterranean Coast ◽  
Polycyclic Aromatic

scholarly journals Protected Areas and Overuse in the Context of Socio-Natural Changes: An Interdisciplinary French Case Study

2011 ◽  
Vol 1 (3) ◽  
pp. 73-92 ◽  
Author(s):  
Cécilia Claeys ◽  
Carole Barthelemy ◽  
Thierry Tatoni ◽  
Patrick Bonhomme
Keyword(s):  
Environmental Sociology ◽  
Mediterranean Coast ◽  
Natural Areas ◽  
Structured Interviews ◽  
Natural Area ◽  
The Social ◽  
French Case ◽  
Natural Change ◽  
Survey Questionnaires

Abstract: This article provides an interdisciplinary analysis of the notion of overuse in natural areas. Based on the case of the French Calanques massif (located along the Mediterranean coast between Marseilles and Cassis), sociology and biology combine their analyses to examine the social processes behind the increasingly widespread use of natural areas and the ecological consequences thereof. The data are comprised of interdisciplinary research based on eighty semi-structured interviews conducted on-site and 330 telephone survey questionnaires. We critically analyse of the notion of overuse and underscore the socio-economic, cultural and ideological weight it carries in the context of socio-natural change; this calls into question the relevance of the ancient nature/culture dichotomy. Drawing on theoretical tools from environmental sociology, this article also provides some perspectives for natural area managers.

Protection of Pipelines Uncovered in Crossing River: A Case Study

2013 ◽  
Author(s):  
Priscila Pereira Teixeira ◽  
Wanderley Camargo Russo ◽  
João Luiz Torralbo Quintana ◽  
Ricardo Hoff
Keyword(s):  
Fiber Optic ◽  
Fiber Optic Cable ◽  
Bathymetric Survey ◽  
Critical Situation ◽  
Geotechnical Monitoring ◽  
Low Visibility ◽  
Anthropic Influence ◽  
One Year ◽  
Flooded Areas

To ensure the integrity of pipelines in failure mode Geotechnical, TRANSPETRO and the TBG perform underwater inspections of pipelines in the main crossings of rivers, lakes, dams, canals and permanently flooded areas. The inspections are designed to locate guideline and measure the covering the pipelines from the margins and underwater depth, identify any exposure of the pipelines, map the occurrences of blocks of rock or debris on the channel and evaluate the anthropic influence on stability of the sections inspected. Among the crossings rivers inspected, in the Atibaia V, with approximately 27.3 m in length, was observed a high erosive potential, which resulted in the loss cover of 3 (three) pipelines of crossing river, besides the fiber optic cable. The lengths uncovered resulted in approximately 33.0 m, with suspended pipes, damage in the concrete jacket and presence of blocks of rocks in the channel. The pipeline in the most critical situation went vain of 6.0 m, with gap up to 0,2 m in relation the background. The crossing river was studied with bathymetric survey and designed cover the pipelines with mechanical protection and anti-erosive. The pipes were supported with sacks of granular material, sequentially, the margins and pipelines were protected with geotextile filled with concrete, installed with the help of divers. The working conditions of 4.0 m depth, currents of up to 0.8 m/s, temperature and low visibility waters were challenges overcome during execution, in which the divers took turns in short periods. Due to the characteristics of the bedrock, the blankets went stylized and stitched on the field by the team, with dimensions taken on site. After positioning the blankets in the background began the underwater concreting, which occurred in stages monitored by the volume pumped and divers strategically placed. The crossing river was re-inspected approximately 1 (one) year after their stabilization and was found in good conditions. The occurrence improved the procedures for geotechnical monitoring and treatment of pipelines uncovered in crossings rivers, being who the efficiency and safety of the work performed currently serve as a reference for the design of similar works.

Where Fossils Dare and Males Matter: combined morphological and molecular analysis untangles the evolutionary history of the spider ant genus Leptomyrmex Mayr (Hymenoptera : Dolichoderinae)

2017 ◽  
Vol 31 (6) ◽  
pp. 765 ◽  
Author(s):  
Phillip Barden ◽  
Brendon Boudinot ◽  
Andrea Lucky
Keyword(s):  
Evolutionary History ◽  
Morphological Evolution ◽  
Sister Group ◽  
Morphological Characters ◽  
Fossil Material ◽  
First Case ◽  
History Of ◽  
The Impact ◽  
Surprising Discovery

The distinctive ant genus Leptomyrmex Mayr, 1862 had been thought to be endemic to Australasia for over 150 years, but enigmatic Neotropical fossils have challenged this view for decades. The present study responds to a recent and surprising discovery of extant Leptomyrmex species in Brazil with a thorough evaluation of the Dominican Republic fossil material, which dates to the Miocene. In the first case study of direct fossil inclusion within Formicidae Latreille, 1809, we incorporated both living and the extinct Leptomyrmex species. Through simultaneous analysis of molecular and morphological characters in both Bayesian and parsimony frameworks, we recovered the fossil taxon as sister-group to extant Leptomyrmex in Brazil while considering the influence of taxonomic and character sampling on inferred hypotheses relating to tree topology, biogeography and morphological evolution. We also identified potential loss of signal in the binning of morphological characters and tested the impact of parameterisation on divergence date estimation. Our results highlight the importance of securing sufficient taxon sampling for extant lineages when incorporating fossils and underscore the utility of diverse character sources in accurate placement of fossil terminals. Specifically, we find that fossil placement in this group is influenced by the inclusion of male-based characters and the newly discovered Neotropical ‘Lazarus taxon’.

scholarly journals Urban sprawl and citizen participation. A case study in the municipality of La Pobla de Vallbona (Valencia)

2017 ◽  
Author(s):  
Eric Gielen ◽  
Yaiza Pérez Alonso ◽  
José Sergio Palencia Jiménez ◽  
Asenet Sosa Espinosa
Keyword(s):  
Citizen Participation ◽  
Urban Sprawl ◽  
Urban Form ◽  
Mediterranean Coast ◽  
City Council ◽  
Social Characteristics ◽  
High Dispersion ◽  
Good Government ◽  
The City

The accelerated urban growth of the last decades in Europe has caused, especially in the Spanish Mediterranean coast, a paradigm shift in much cities, moving from a mostly compact urban form to a more diffuse one. The concept of city has changed so much that even in a lot of dispersed municipalities, it becomes difficult to define its limits. This change implies not only ecological and economic impacts, but also, social effects. Urban sprawl makes difficult social interaction and reduces the community feeling, and therefore, social cohesion and identity. This produces also changes in the relations of citizens between them and with the city council. The research propounds a discussion about the challenges that the urban sprawl causes for the application of participative models in the decision making, understanding them as basic criterion of good government. We analyze a case study to extract the complexity of articulating processes of citizen participation in territory with high dispersion based on a project carried out in the municipality of La Pobla de Vallbona (Valencia) on participatory budgets. It analyzes the results of the process carried out in relation to the urban model, the morphology of their urban pieces and spatial structure, and the demographic and social characteristics of the municipality. The question is identifying the problematic for the articulation of participative processes in territories with this idiosyncrasy. Finally, the article suggests a series of strategic lines as starting points to achieve participatory processes in the city characterized by urban sprawl.

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