scholarly journals Multi-criteria approaches to identify the shoreline retreat downstream of dams: the North African case

2021 ◽  
Vol 384 ◽  
pp. 133-139
Author(s):  
Oula Amrouni ◽  
Gil Mahé
Keyword(s):  
Climate Change ◽  
Dam Construction ◽  
Sediment Discharge ◽  
North African ◽  
Sampling Protocol ◽  
Shoreline Retreat ◽  
Sediment Fluxes ◽  
Extreme Climate ◽  
Shoreline Evolution ◽  
The North

Abstract. Northern African beaches are among the most vulnerable areas under the extreme climate change hazard. Mainly sedimentary low-lying platform, the coasts are supplied by terrestrial yields, which are increasingly interrupted by dams. Unfortunately, the sediment fluxes are rarely measured and monitored, so that it is quite impossible today to assess the contribution of continental sediments to the coast and its variability. The aim of our study is to determine the sampling protocol of delta sedimentation plain and nearshore seabed for better understanding of the anthropogenic driver in contrast to climate change. We adopt a multi-criteria analysis based both on the geomorphologic feature and the historic evolution from the River to the littoral plain. The shoreline evolution reveals an alarming retreat trend reaching −20 m ± 0.15 m yr−1 after the human-induced change where ∼50 % of sediment discharge has been trapped upstream the dam, including quite all the coarse material, like sand. The shoreline retreat and the decreasing sediment rate of fluvial flow are all due to the dam construction.

scholarly journals Climate Change, Macroeconomic Sensitivity And The Response of Remittances To The North African Countries: A Panel VAR Analysis

2021 ◽  
Author(s):  
Hajer HABIB
Keyword(s):  
Climate Change ◽  
Panel Var ◽  
Negative Consequences ◽  
North African ◽  
African Region ◽  
Green Technologies ◽  
African Countries ◽  
Vector Autoregressive ◽  
The North ◽  
The One

Abstract The paper analyses the role of remittances in alleviating the Gross domestic product (GDP) oscillations induced by a climate shock that is detected by irregular precipitation and annual temperature in the North African region between 1980 and 2016. By controlling endogeneity problems, we use the Panel Vector Autoregressive model (PVAR). Our results show on the one hand that the decline in precipitation and the increase in temperature have adverse consequences on the GDP per capita. On the other hand, remittances are a pathway of action towards macroeconomic stability of the most vulnerable countries to climate change. They are characterized by counter-cyclical patterns which increase the capacity of adaptation to meteorological changes in the recipient countries and also resistance to hazards. Therefore, the future policies must be more rigorously focused on adaptation policies and investing in green technologies that mitigate the long term negative consequences of climate transformations.

scholarly journals A Multi-Risk Methodology for the Assessment of Climate Change Impacts in Coastal Zones

2020 ◽  
Vol 12 (9) ◽  
pp. 3697 ◽  
Author(s):  
Valentina Gallina ◽  
Silvia Torresan ◽  
Alex Zabeo ◽  
Andrea Critto ◽  
Thomas Glade ◽  
...  
Keyword(s):  
Climate Change ◽  
Urban Areas ◽  
Coastal Erosion ◽  
Coastal Zone Management ◽  
Climate Change Impacts ◽  
Coastal Zones ◽  
Influence Matrix ◽  
Shoreline Evolution ◽  
The North ◽  
Zone Management

Climate change threatens coastal areas, posing significant risks to natural and human systems, including coastal erosion and inundation. This paper presents a multi-risk approach integrating multiple climate-related hazards and exposure and vulnerability factors across different spatial units and temporal scales. The multi-hazard assessment employs an influence matrix to analyze the relationships among hazards (sea-level rise, coastal erosion, and storm surge) and their disjoint probability. The multi-vulnerability considers the susceptibility of the exposed receptors (wetlands, beaches, and urban areas) to different hazards based on multiple indicators (dunes, shoreline evolution, and urbanization rate). The methodology was applied in the North Adriatic coast, producing a ranking of multi-hazard risks by means of GIS maps and statistics. The results highlight that the higher multi-hazard score (meaning presence of all investigated hazards) is near the coastline while multi-vulnerability is relatively high in the whole case study, especially for beaches, wetlands, protected areas, and river mouths. The overall multi-risk score presents a trend similar to multi-hazard and shows that beaches is the receptor most affected by multiple risks (60% of surface in the higher multi-risk classes). Risk statistics were developed for coastal municipalities and local stakeholders to support the setting of adaptation priorities and coastal zone management plans.

scholarly journals Assessing the climate change impact on the North African offshore surface wind and coastal low-level jet using coupled and uncoupled regional climate simulations

2018 ◽  
Vol 52 (11) ◽  
pp. 7111-7132 ◽  
Author(s):  
Pedro M. M. Soares ◽  
Daniela C. A. Lima ◽  
Alvaro Semedo ◽  
Rita M. Cardoso ◽  
William Cabos ◽  
...  
Keyword(s):  
Climate Change ◽  
Climate Change Impact ◽  
Regional Climate ◽  
Surface Wind ◽  
North African ◽  
Low Level ◽  
The North ◽  
Climate Simulations ◽  
Change Impact ◽  
Low Level Jet

Skeletochronology and mark–recapture assessments of growth in the North African agamid lizard (Agama impalearis)

1999 ◽  
Vol 249 (4) ◽  
pp. 455-461
Author(s):  
El Hassan El Mouden ◽  
Mohammed Znari ◽  
Richard P. Brown
Keyword(s):  
North African ◽  
Mark Recapture ◽  
Agamid Lizard ◽  
The North

INTERCONNECTION OF SUSTAINABLE DEVELOPMENT COMPONENTS FOR THE INDIGENOUS PEOPLES OF THE NORTH

2020 ◽  
Vol 2 (8) ◽  
pp. 101-110
Author(s):  
N. N. ILYSHEVA ◽  
◽  
E. V. KARANINA ◽  
G. P. LEDKOV ◽  
E. V. BALDESKU ◽  
...  
Keyword(s):  
Climate Change ◽  
Sustainable Development ◽  
Economic Development ◽  
Indigenous Peoples ◽  
Ecological Footprint ◽  
Positive Relationship ◽  
The North ◽  
Strong Positive Relationship ◽  
The Face ◽  
The Relationship

The article deals with the problem of achieving sustainable development. The purpose of this study is to reveal the relationship between the components of sustainable development, taking into account the involvement of indigenous peoples in nature conservation. Climate change makes achieving sustainable development more difficult. Indigenous peoples are the first to feel the effects of climate change and play an important role in the environmental monitoring of their places of residence. The natural environment is the basis of life for indigenous peoples, and biological resources are the main source of food security. In the future, the importance of bioresources will increase, which is why economic development cannot be considered independently. It is assumed that the components of resilience are interrelated and influence each other. To identify this relationship, a model for the correlation of sustainable development components was developed. The model is based on the methods of correlation analysis and allows to determine the tightness of the relationship between economic development and its ecological footprint in the face of climate change. The correlation model was tested on the statistical materials of state reports on the environmental situation in the Khanty-Mansiysk Autonomous Okrug – Yugra. The approbation revealed a strong positive relationship between two components of sustainable development of the region: economy and ecology.

Turbulent Climate Discourses in Northern Sweden

2020 ◽  
Vol 20 (1) ◽  
pp. 10-42
Author(s):  
Flora Mary Bartlett
Keyword(s):  
Climate Change ◽  
Small Town ◽  
Field Research ◽  
Rural Life ◽  
Northern Sweden ◽  
The North ◽  
Local Experience ◽  
Environmental Engagement ◽  
Physical Phenomena ◽  
Crucial Part

I examine how tensions between locals, environmentalists, and State politicians in a small town in northern Sweden are reinforced through national discourses of climate change and sustainability. Turbulence emerges across different scales of responsibility and environmental engagement in Arjeplog as politicians are seen by local inhabitants to be engaging more with the global conversation than with the local experience of living in the north. Moreover, many people view the environmentalist discourses from the politicians in the south, whom they deem to be out of touch with rural life, as threatening to the local experience of nature. These discourses pose a threat to their reliance on petrol, essential for travel, and are experienced locally as a continuation of the south’s historical interference in the region. Based on thirteen months of field research, I argue that mistrust of the various messengers of climate change, including politicians and environmentalists, is a crucial part of the scepticism towards the climate change discourse and that we as researchers need to utilise the strengths of anthropology in examining the reception (or refusal) of climate change. The locals’ mistrust of environment discourses had implications for my positionality, as I was associated with these perceived ‘outsider’ sensibilities. While the anthropology of climate change often focusses on physical impacts and resilience, I argue that we need to pay due attention to the local turbulence surrounding the discourses of climate change, which exist alongside the physical phenomena.  

scholarly journals Impact of air–sea coupling on the climate change signal over the Iberian Peninsula

2021 ◽  
Author(s):  
Alba de la Vara ◽  
William Cabos ◽  
Dmitry V. Sein ◽  
Claas Teichmann ◽  
Daniela Jacob
Keyword(s):  
Climate Change ◽  
Iberian Peninsula ◽  
Mediterranean Sea ◽  
Large Scale ◽  
Regional Distribution ◽  
Coupled Model ◽  
Climate Change Signal ◽  
The North ◽  
The Mediterranean ◽  
The Impact

AbstractIn this work we use a regional atmosphere–ocean coupled model (RAOCM) and its stand-alone atmospheric component to gain insight into the impact of atmosphere–ocean coupling on the climate change signal over the Iberian Peninsula (IP). The IP climate is influenced by both the Atlantic Ocean and the Mediterranean sea. Complex interactions with the orography take place there and high-resolution models are required to realistically reproduce its current and future climate. We find that under the RCP8.5 scenario, the generalized 2-m air temperature (T2M) increase by the end of the twenty-first century (2070–2099) in the atmospheric-only simulation is tempered by the coupling. The impact of coupling is specially seen in summer, when the warming is stronger. Precipitation shows regionally-dependent changes in winter, whilst a drier climate is found in summer. The coupling generally reduces the magnitude of the changes. Differences in T2M and precipitation between the coupled and uncoupled simulations are caused by changes in the Atlantic large-scale circulation and in the Mediterranean Sea. Additionally, the differences in projected changes of T2M and precipitation with the RAOCM under the RCP8.5 and RCP4.5 scenarios are tackled. Results show that in winter and summer T2M increases less and precipitation changes are of a smaller magnitude with the RCP4.5. Whilst in summer changes present a similar regional distribution in both runs, in winter there are some differences in the NW of the IP due to differences in the North Atlantic circulation. The differences in the climate change signal from the RAOCM and the driving Global Coupled Model show that regionalization has an effect in terms of higher resolution over the land and ocean.

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