Going beyond generalisation: perspective on the persistence of urban floods in Dar es Salaam

Sakijege, Tumpale; Dakyaga, Francis

doi:10.1007/s11069-022-05645-9

Cited by 13 publications

(4 citation statements)

References 45 publications

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“…This requires robust data collection, modeling, and scenario analysis, considering factors like geographic location, socio-economic inequalities, and existing infrastructure [6]. Additionally, ensuring equitable access to resources and risk reduction strategies within cities requires addressing systemic inequalities that often exacerbate vulnerability for marginalized communities [7,8].…”

Section: Introductionmentioning

confidence: 99%

Enhancing Urban Resilience: Strategic Management and Action Plans for Cyclonic Events through Socially Constructed Risk Processes

Pérez-Arévalo,

Jiménez-Caldera,

Serrano-Montes

et al. 2024

Urban Science

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Cities will face increasing challenges due to the impacts of global climate change, particularly in the form of cyclonic events, necessitating a deeper understanding and the establishment of effective response mechanisms at both institutional and citizen levels. In this research, we tested the efficiency of crowdsourcing in fostering participatory resilience and improving urban management. The main aim was to design novel and accurate proactive response strategies and mitigate the adverse effects of cyclonic wind events through volunteerism, citizen science, and urban science. To achieve this goal, as a case study, the municipality of Soledad, Colombia was used. This research employed a two-phase methodological approach: (i) initially evaluating the spatial distribution of emergency response resources, and (ii) developing a geo-referenced survey to map, systematize, and categorize data and outcomes. A total of three hundred and seventy-eight residents across five neighborhoods in Soledad, which have experienced a high frequency of atmospheric wind phenomena over the past two decades, were surveyed. The results indicate that the crowdsourcing mechanism effectively enhanced the empirical understanding of atmospheric wind events in Soledad, facilitating the establishment of a geo-referenced volunteer network for real-time responses. Additionally, this study shed light on previously undocumented challenges, in terms of reducing the number of people affected, and the actions that would lead to improved urban development to reduce the impacts of cyclonic events, emphasizing the significance of citizen science in the social construction of risk and disaster risk reduction (DDR) efforts.

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Section: Introductionmentioning

confidence: 99%

Enhancing Urban Resilience: Strategic Management and Action Plans for Cyclonic Events through Socially Constructed Risk Processes

Pérez-Arévalo,

Jiménez-Caldera,

Serrano-Montes

et al. 2024

Urban Science

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“…This includes city-internal developments, such as the construction of buildings on green open spaces, or densification through the closing of gaps in the building stock, but also city-internal re-developments, like the transitions of urban structure types (e.g. gentrification) (Sakijege andDakyaga 2022, Wang et al 2022). In this regard, it is important to consider not only persisting cities but also peri-urban areas, as these are transition zones, which bridge the urban and the rural environments most likely transition from rural to urban land use.…”

Section: Introductionmentioning

confidence: 99%

“…A change in urban structures additionally affects the flood hazard through changing roughness parameters and runoff patterns. Especially in cities with unplanned development, drainage infrastructures, which determine the discharge or storage capacity for flood water in the area, largely vary amongst urban structure types (Sakijege and Dakyaga 2022). The same is true for differences in solid waste management, which affect the risks of clogging.…”

Section: Introductionmentioning

confidence: 99%

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How suitable are current approaches to simulate flood risk under future urbanization trends?

Zwirglmaier,

Reimuth,

Garschagen

2024

Environ. Res. Lett.

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Flood risk in urban areas will increase massively under future urbanization and climate change. Urban flood risk models have been increasingly applied to assess impacts of urbanization on flood risk. For this purpose, different methodological approaches have been developed in order to reflect the complexity and dynamics of urban growth. To assess the state-of-the art in the application of flood risk models under urbanization scenarios, we conducted a structured literature review and systematically analyzed 93 publications with 141 case studies. Our review shows that hydrological and hydrodynamic flood models are the most commonly used approaches to project flood risk. Future urbanization is mostly considered as urban sprawl through the adjustment of land use maps and roughness parameters. A low number of approaches additionally consider transitions of urban structures and densification processes in their urbanization scenarios. High-resolution physically based flood models are constantly developed and already well suited for describing quantifiable processes in data-rich contexts. In regions with data paucity, however, we argue that a reduction of the level of detail in flood models accompanied by a higher resolved representation of urbanization patterns should be explored to improve the quality of flood risk projections under future urbanization trends. For this purpose, we also call for the development of integrative model structures such as causal network models that have greater explanatory power and enable the processing of qualitative data.

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Urban marginality: Everyday practice of building resilience to flood in the informal Settlement of Dar es Salaam

Khan,

Dakyaga,

Chilinde

et al. 2024

GeoJournal

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Going beyond generalisation: perspective on the persistence of urban floods in Dar es Salaam

Cited by 13 publications

References 45 publications

Enhancing Urban Resilience: Strategic Management and Action Plans for Cyclonic Events through Socially Constructed Risk Processes

Enhancing Urban Resilience: Strategic Management and Action Plans for Cyclonic Events through Socially Constructed Risk Processes

How suitable are current approaches to simulate flood risk under future urbanization trends?

Urban marginality: Everyday practice of building resilience to flood in the informal Settlement of Dar es Salaam

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