Flash flood detection via copula-based intensity–duration–frequency curves: evidence from Jamaica

Collalti, Dino; Spencer, Nekeisha; Strobl, Eric

doi:10.5194/nhess-24-873-2024

Cited by 3 publications

(1 citation statement)

References 55 publications

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“…As discussed in the Introduction, many approaches have been used to define flood risk drivers, including a hazard, vulnerability, and capacity (HVC) approach (Müller, 2013;Collalti et al, 2024;Ariyani et al, 2022); an exposure risk approach (Wang et al, 2023); a resilient component approach, i.e. absorptive capacity, adaptive capacity, and trans- formative capacity (Pandey et al, 2023); an integrated climate change adaptation (CCA) and disaster risk reduction approach (Booth et al, 2020); and integrated water resource management (IWRM; Zeitoun et al, 2013).…”

Section: Flood Risk Driver Frameworkmentioning

confidence: 99%

Unveiling transboundary challenges in river flood risk management: learning from the Ciliwung River basin

Rahayu,

Zulfa,

Nurhasanah

et al. 2024

Nat. Hazards Earth Syst. Sci.

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Abstract. To cope with massive development, many urban and surrounding rural areas have been agglomerated into a greater metropolitan area, aiming for regional economic development. Many of these metropolitan areas have experienced a dramatic increase in impacted area and economic loss from annual flooding. The issues and challenges emerging from transboundary river flood risk management have become a major concern for the Jakarta metropolitan area with a long river basin crossing several administrative jurisdictions. Previous studies have addressed the challenges of flood risk, but they have tended to overlook transboundary issues and power sharing. To tackle future flood events, this paper aims to unveil transboundary challenges and power sharing in flood management, learning from Ciliwung River. As the longest river basin crossing cities and regencies of Greater Jakarta, the complexity of Ciliwung flood risk management was driven by flood variables triggered not only by natural, physical, and socioeconomic factors, but also by transboundary challenges and power sharing. A total of 13 significant transboundary flood drivers were identified from the literature, policy, and practices. Using Matrice d'Impacts Croisés Multiplication Appliquée á un Classement (MICMAC), a power–dependency model, several strategic key flood drivers were further recognized based on key stakeholders' perspectives obtained from in-depth interviews and focus group discussions (FGDs). Findings of the study show that a lack of control of spatial plans and weak stakeholder coordination–cooperation are found to be the priority key flood drivers for risk reduction intervention. Finally, this study contributes to the literature on governance of flood risk management by emphasizing the need for a coordinated and integrated approach to mitigate flood risks that extend beyond administrative boundaries, enhancing overall resilience and sustainability.

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Section: Flood Risk Driver Frameworkmentioning

confidence: 99%

Unveiling transboundary challenges in river flood risk management: learning from the Ciliwung River basin

Rahayu,

Zulfa,

Nurhasanah

et al. 2024

Nat. Hazards Earth Syst. Sci.

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The Economic Dynamics After a Flood: Evidence from Satellite Data

Collalti

2024

Environ Resource Econ

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This study investigates the effect of flash floods on local economic activity in Central America and the Caribbean. I measure these rarely analyzed floods by constructing a high-resolution, physically based index of flash flood occurrence from satellite data and connect these to changes in local night light emissions. After accounting for tropical cyclone activity, flash floods have a delayed, short-term negative effect on economic activity. In countries with a low to medium human development index (HDI), the average negative effect can be up to $$5.6\%$$ 5.6 % in the following months. Countries with higher HDI appear more resilient and are only marginally affected. Also, flash floods exhibit a minor positive spatial spillover in low to medium HDI countries, besides their more substantial local negative effect. Due to their high frequency, flash floods have a detrimental effect on local economic growth in developing countries that will likely be exacerbated by climate change. (JEL )

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Implications of Tropical Cyclone Rainfall Spatial–Temporal Variability on Flood Hazard Assessments in the Caribbean Lesser Antilles

Nabukulu,

Jetten,

Ettema

2024

GeoHazards

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Tropical cyclones (TCs) significantly impact the Caribbean Lesser Antilles, often causing severe wind and water damage. Traditional flood hazard assessments simplify TC rainfall as single-peak, short-duration events tied to specific return periods, overlooking the spatial–temporal variability in rainfall that TCs introduce. To address this limitation, a new user-friendly tool incorporates spatial–temporal rainfall variability into TC-related flood hazard assessments. The tool utilizes satellite precipitation data to break down TC-associated rainfall into distinct pathways/scenarios, mapping them to ground locations and linking them to specific sections of the storm’s rainfall footprint. This approach demonstrates how different areas can be affected differently by the same TC. In this study, we apply the tool to evaluate rainfall patterns and flood hazards in St. George’s, Grenada, during Hurricane Beryl in 2024. The scenario representing the 75th quantile in Spatial Region 2 (S2-Q0.75) closely matched the actual rainfall observed in the study area. By generating multiple hazard maps based on various rainfall scenarios, the tool provides decision-makers with valuable insights into the multifaced flood hazard risks posed by a single TC. Ultimately, island communities can enhance their early warning and mitigation strategies for TC impacts.

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Flash flood detection via copula-based intensity–duration–frequency curves: evidence from Jamaica

Cited by 3 publications

References 55 publications

Unveiling transboundary challenges in river flood risk management: learning from the Ciliwung River basin

Unveiling transboundary challenges in river flood risk management: learning from the Ciliwung River basin

The Economic Dynamics After a Flood: Evidence from Satellite Data

Implications of Tropical Cyclone Rainfall Spatial–Temporal Variability on Flood Hazard Assessments in the Caribbean Lesser Antilles

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