UAb | CiênciaVitae | Ambiente e Sustentabilidade
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- Integrating GALDIT and GIS for assessing sea water intrusion susceptibility in the Akermoud coastal water table, MoroccoPublication . Khouz, Abdellah; Trindade, Jorge; El Bchari, Fatima; Santos, Pedro Pinto; Reis, Eusébio; Moumane, Adil; El Ghazali, Fatima Ezzahra; Jadoud, Mourad; Bougadir, BlaidThe Akermoud coastal aquifer, situated in the northern region of Essaouira, Morocco, is an aquifer that has an important productive capacity, mainly used for irrigation. However, uncontrolled exploitation has increased the risk of sea water intrusion, leading to deteriorating water quality and threatening agricultural sustainability. In this research, in order to access susceptibility to sea water intrusion (SWI), six elements derived from diverse databases are used. Variables were combined in a GALDIT and GIS models, resulting in the analysis of 40 groundwater samples from wells. Results highlight the imminent threat of sea water encroachment into the coastal groundwater system. The resulting GALDIT index map indicates a notably high susceptibility index along a 3 km coastal band, between Tensift Oued and Bhaybeh Beach, enlarging southwards up to 5 km. Saline intrusion patterns are particularly observed between Zaouiet El Kourati and Ouled El Fequih villages, where the merging of saline and fresh waters amplifies salinization, affecting approximately 24% of the study area.
- Análise da inundação em zonas urbanas expostas ao aumento do nível do mar em Portugal ContinentalPublication . Silva, Andreia Alves; Trindade, Jorge; Rocha, JorgeNeste trabalho foi caracterizada a exposição das comunidades urbanas em Portugal continental à subida do nível do mar. A metodologia consistiu na determinação do nível máximo da água durante tempestades prevista para cada uma das células sedimentares da costa portuguesa, e complementarmente, a evolução do tecido urbano. Os resultados obtidos indicam que, em 2100, 86 km² sejam diretamente afetados por inundações costeiras, dos quais cerca de 1/3 possam ser áreas urbanizadas.
- Applicaton of Digital Shoreline Analysis System (DSAS) for analyzing sandy coast dynamics in Essaouira, MoroccoPublication . Khouz, Abdellah; Trindade, Jorge; Oliveira, Sérgio; El Bchari, F.; Bougadir, BlaidCoastlines change research plays a crucial role in understanding the evolution and ensuring effective risk management. This is essential for minimizing impacts on the environment and society. Our study aims to assess the coastal dynamics of sandy systems in Essaouira. By employing advanced techniques such as DSAS and GIS, we aim to analyze shoreline changes, erosion rates, and susceptibility to sand movement. The insights gained from our investigation into the sandy coastal system will provide valuable input for making informed decisions regarding territorial management.
- Geomorphological coastal slope instability and suscepbility mapping in Safi, MoroccoPublication . Khouz, Abdellah; Trindade, Jorge; Oliveira, S. Cruz de; Garcia, Ricardo Alexandre Cardoso; Elbchari, Fatima; Chaibi, M.; Bougadir, BlaidRocky cliff coasts constitute approximately half of the world’s coastline and support human activities and diverse ecosystems but are prone to landslides, a key geomorphological process. This study assesses mass movement susceptibility along Safi's coast in Morocco by analyzing 297 mass movements using topographic, geological, and hydrological predisposing factors according to the information value model. The susceptibility model revealed that 40.62% of Safi's rocky coast is highly susceptible to slope instability.
- Sustainable land use: policy implications of systematic land regularization in MozambiquePublication . Carrilho, João; Dgedge, Gustavo; Santos, Pedro Pinto; Trindade, JorgeSecurity of land tenure is key to achieve the sustainable development goal of eradicating poverty and can be improved through the regularization of rights to land, property, and natural resources. Making cities and human settlements sustainable, requires participatory and integrated land use planning, accounting for the land’s po tential and constraints, with a view to medium and long-term use. The government of Mozambique is actively promoting a process of massive regularization, under common terms of reference for service providers. The terms of reference also intend to achieve a linkage between regularization and community land use plans. The aim of this research is to assess the robustness of such plans to detect and overcome potential conflicts between the given and the potential land use, as well as constraints, weaknesses and threats. This research uses a mixed documental analysis to undertake an ex-ante assessment of 15 participatory community land use plans. Five categories are assumed as a reference of good practices in land use planning suggested by universal and African literature. It was found that the common terms of reference and guidelines promote participatory capacity and provides general directions of community development. However, good practices of land use planning such as effective participation in all phases, alternative scenarios for future land use, regional integration, and disasters risk management are less promoted. It is suggested that the guidelines go beyond the immediate needs of land register, to consider that such interventions in rural areas shape the culture of land use, which, in turn, will influence sustainability in higher level settlements.
- Methodology for sea level rise hazard assessment in the exposed coastal zone of the Portuguese mainlandPublication . Trindade, Jorge; Reis, Eusébio; Rocha, Jorge; Santos, Pedro Pinto; Garcia, Ricardo; Oliveira, Sérgio; Silva, Andreia; Pinheiro, Samuel; Cuervas-Mons, JoseFuture scenarios of sea level rise in Portugal are expected to put at risk sensitive areas from a natural and urban point of view. This research proposes a methodology for the assessment of sea level rise Hazard zones using the evaluation of permanent and episodic components as important factors to predict flooding and coastal erosion hazards for the Shared Socioeconomic Pathway 1, 2 and 5 scenarios, in 2040, 2070 and 2100.
- Flood susceptibility assessment through statistical models and HEC-RAS analysis for sustainable management in essaouira province, MoroccoPublication . Khouz, Abdellah; Trindade, Jorge; Santos, Pedro Pinto; Oliveira, Sérgio; Bchari, Fatima El; Bougadir, Blaid; Garcia, Ricardo; Reis, Eusébio; Jadoud, Mourad; Saouabe, Tarik; Rachidi, SaidFloods are natural disasters that often impact communities living in low-lying areas in the northern and central parts of Morocco. In this study, our aim was to create a flood susceptibility map using three methods; the hierarchy process (AHP) frequency ratio model (FR) and the weights of evidence (WoE) model. We extensively examined the area identified by these approaches using a hydraulic analysis software called HEC-RAS (version 6.3.1). Our analysis focused on the Essaouira watersheds in Morocco, where we identified around 197 flood locations. Out of these, we randomly selected 70% for modeling purposes while the remaining 30% were used for validation. Ten factors that influence floods were considered, such as slope, elevation, proximity to rivers, drainage density, stream order, land use patterns, rainfall data, lithology (permeability level) index (TWI), and curvature. We obtained these factors from data sources. Finally, we generated a flood susceptibility map and evaluated its accuracy by calculating the area under the curve (AUC). The validation results confirmed that all three models were robust and effective with an AUC of 90. Moreover, the research uncovered a trend of vulnerability with the most susceptible area being in close proximity to the city of Essaouira along the Oued Ksob. A detailed analysis using HEC-RAS was conducted at this identified location, pinpointing the village of Diabat as highly exposed. These findings hold significance for flood management, empowering decision makers, scholars, and urban planners to make informed choices and implement strategies that can minimize the impact of floods in susceptible regions while minimizing potential damages.
- A relevância do reporte da responsabilidade social empresarial sobre catástrofes naturaisPublication . Pontes, Elizabete; Simão, João; Trindade, JorgeEste trabalho teve como objetivo analisar a relevância dos Relatórios de Sustentabilidade (RS), enquanto instrumento de prestação de contas de atividades baseadas na responsabilidade social das empresas, associado a catástrofes naturais. Através da revisão de literatura, torna-se relevante analisar a necessidade do reporte de atividades de supostos esforços ancorados na responsabilidade social como contributo para o Desenvolvimento Sustentável (DS). A visão holística e sistémica do DS implica a participação das empresas que, por sua vez, exige o relato e comunicação de atividades importantes para se alcançar o DS, particularmente, diante do desafio das catástrofes naturais.