Exploring the multiple land degradation pathways across the planet

Earth-Science Reviews, Journal Year: 2021, Volume and Issue: 220, P. 103689 - 103689

Published: May 25, 2021

Language: Английский

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Coastal Analyst System from Space Imagery Engine (CASSIE): Shoreline management module

Environmental Modelling & Software, Journal Year: 2021, Volume and Issue: 140, P. 105033 - 105033

Published: March 14, 2021

Language: Английский

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Irreversible and Large‐Scale Heavy Metal Pollution Arising From Increased Damming and Untreated Water Reuse in the Nile Delta

Earth s Future, Journal Year: 2023, Volume and Issue: 11(3)

Published: March 1, 2023

Abstract Egypt observes one of the highest water budget deficits in Africa that is mainly compensated by intensive reuse untreated agricultural drainage Nile Delta. The implications on increasing soil pollution levels remain poorly characterized; however, a large‐scale can compromise crop production and quality. To address this deficiency, we evaluate level heavy metal Delta, identify its sources explore damming concentration using integrated indicators statistical modeling. Pollution show moderate to very high contamination Pb, Ni, Cr, Cd, Cu, Zn, with unprecedented Cd sediments (up 72.0 ppm) northward increase levels. Statistical modeling historical datasets reveal association Fe both branches clustering Zn which attribute concentrations cumulative addition (9.5 BCM/yr) wastewater. These processes introduced an accelerated Delta system. Though, conservation measures are crucial reverse degradation, yet increasingly engineered flow, low gradient delta active silting impede flushing causing irreversible pollution. Our findings alarm future response increased mitigate impacts ongoing upstream call for implementing international cooperative agreements management along River.

Language: Английский

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Soaring Building Collapses in Southern Mediterranean Coasts: Hydroclimatic Drivers & Adaptive Landscape Mitigations

Earth s Future, Journal Year: 2025, Volume and Issue: 13(2)

Published: Feb. 1, 2025

Abstract The low‐lying, arid coastal regions of the Southern Mediterranean Basin, extending over 4,600 km, face daunting sea level rise and hydroclimatic changes due to shifting weather patterns. impact these factors on urban buildings infrastructure must be better understood. Alexandria, a historic densely populated port city in Egypt representative several towns Mediterranean, has experienced 280 building collapses along its shorelines past two decades, root causes are still under investigation. We examine decadal drivers city's coastline using photogrammetric satellite images from 1974 2021. explore interconnectivity between shoreline retreat, ground subsidence, collapses. Our results suggest that correlated with severe erosion driven by sediment imbalances resulting decades inefficient landscape management expansion waterfront. This erosion, combined rise, increases seawater intrusion, raising groundwater levels aquifers. Degrading stability accelerating corrosion foundations ultimately culminating identified area high vulnerability 7,000 at risk, surpassing any other vulnerable zone Basin. propose cost‐effective nature‐based techniques for adaptation alleviate dangers Alexandria cities facing similar climatic challenges.

Language: Английский

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Primary drivers of multidecadal spatial and temporal patterns of shoreline change derived from optical satellite imagery

Geomorphology, Journal Year: 2022, Volume and Issue: 413, P. 108360 - 108360

Published: July 5, 2022

Language: Английский

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Geospatial-assisted multi-criterion analysis of solar and wind power geographical-technical-economic potential assessment

Applied Energy, Journal Year: 2022, Volume and Issue: 322, P. 119532 - 119532

Published: June 25, 2022

Language: Английский

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Coastal Zone Changes in West Africa: Challenges and Opportunities for Satellite Earth Observations

Surveys in Geophysics, Journal Year: 2022, Volume and Issue: 44(1), P. 249 - 275

Published: July 18, 2022

Abstract The West African coastal population and ecosystems are increasingly exposed to a multitude of hazards. These likely be exacerbated by global climate change direct impacts from local human activities. Our ability understand changes has been limited an incomplete understanding the processes difficulty obtaining detailed data. Recent advances in satellite techniques have made it possible obtain rich data sets that provide solid foundation for improving adaptation strategies humanity increasing resilience sustainable development. In this article, we review layout current socio-environmental challenges together with key parameters can monitored several management programs rely on monitor indicators at regional level. social, technical scientific problems difficulties hinder interest practitioners decision-makers use identified. We roadmap precisely respond these how improved earth observation strategy better support future zone Africa.

Language: Английский

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Tourism and climate change in Africa: informing sector responses

Journal of Sustainable Tourism, Journal Year: 2023, Volume and Issue: 32(9), P. 1811 - 1831

Published: April 2, 2023

Informing Africa's tourism sector responses to the IPCC-AR6's projected climate change impacts remains paramount. This study reviews evolution of knowledge on and in Africa, examining gaps, scholarship trends policy issues since IPCC-AR5 2014. The Preferred Reporting Items for Systematic Reviews Meta-Analyses (PRISMA) guideline is used gather synthesise relevant literature. observed increased risks, including higher temperatures, more severe droughts floods, sea level rise, snow melting, coral bleaching frequent tropical cyclones. While has increased, critical gaps remain some regions thematic areas. study, therefore, makes a modest contribution literature Africa.

Language: Английский

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Assessing flash flood erosion following storm Daniel in Libya

Nature Communications, Journal Year: 2024, Volume and Issue: 15(1)

Published: Aug. 20, 2024

The eastern Mediterranean basin is witnessing increased storm activity impacting populous urban coastal areas that historically were not prone to catastrophic flooding. In the fall of 2023, Storm Daniel struck coast Libya, causing unprecedented flash floods with a tragic death toll and large-scale infrastructure damages. We use Sentinel-1A C-band SAR images characterize resulting flood erosion sediment load dynamics across watersheds map damages within cities at their outlets. Our results suggest loading, from surface erosion, density turbid streams. above exacerbated impact in Derna Susah, where 66% 48% respective have experienced moderate-to-high findings highlight vulnerability arid due forecasted increase hydroclimatic extremes call for transformative management approach urgently implement nature-based solutions land-use changes mitigate these rising risks.

Language: Английский

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Flooding in semi-unformal urban areas in North Africa: Environmental and psychosocial drivers

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 929, P. 172486 - 172486

Published: April 16, 2024

Language: Английский

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