Flood Vulnerability Assessment in Ungauged Watersheds: a Simple Approach Using Regional Functions and 1D Hydraulic Modelling DOI Open Access
Gabriela Rezende de Souza, Luiz Fernando Coutinho de Oliveira, Jhones da Silva Amorim

и другие.

Revista Brasileira de Geografia Física, Год журнала: 2025, Номер 18(4), С. 2551 - 2572

Опубликована: Апрель 22, 2025

In this study, we identified flood risk areas using maximum streamflow estimates derived from regional functions and 1D hydraulic modelling in an urban ungauged watershed Lavras, Minas Gerais, Brazil. Our approach focused on employing simple techniques based secondary data to support management regions lacking hydrological monitoring technical expertise. The study evaluated two developed for the Grande River Basin identify most suitable mapping. Flood maps 5, 10, 50 100-year return periods were created software HEC-RAS assessed population vulnerability under current regulated land use scenarios. By data, work provides a practical decision-making cities with limited resources, highlighting need improved drainage management.

Язык: Английский

Future projections of the rainfall intensity-duration-frequency curves in Beijing-Tianjin-Hebei urban agglomeration based on NEX-GDDP CMIP6 simulations DOI
Lidong Song, Lei Yan,

Fuxin Chai

и другие.

Sustainable Cities and Society, Год журнала: 2025, Номер unknown, С. 106227 - 106227

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
Efeitos das mudanças climáticas na região norte de Minas Gerais DOI Creative Commons

Douglas Roberto Neres,

João Santos, Marcelo Rossi Vicente

и другие.

Revista Mineira de Recursos Hídricos, Год журнала: 2025, Номер 6

Опубликована: Фев. 14, 2025

A região Norte de Minas Gerais, caracterizada por clima semiárido e baixa regularidade chuvas, enfrenta grandes desafios relacionados à disponibilidade recursos hídricos, o que afeta diretamente a agricultura economia local. Com avanço das mudanças climáticas, prevê-se esses fenômenos se intensifiquem, aumentando os períodos seca ocorrência eventos climáticos extremos. Este estudo utilizou modelo climático global FIO-ESM v2.0, dentro dos cenários SSP2-4.5 SSP5-8.5, para avaliar as no Balanço Hídrico Climatológico (BHC) entre anos 2021 2060 em áreas agrícolas quatro municípios da região. Os resultados indicaram uma tendência aumento maior variabilidade nos volumes precipitação. Observou-se ainda um crescimento precipitados na frequência extremos climáticos, como secas severas chuvas intensas, especialmente cenário SSP5-8.5. Esses sugerem significativos gestão hídricos local, reforçando necessidade políticas adaptação mitigação.

Процитировано

0
Temperature and Precipitation Change over South China in CMIP5 and CMIP6 Models: Historical Simulation and Future Projection DOI
Dongdong Peng, Tianjun Zhou, Sheng Hu

и другие.

Advances in Atmospheric Sciences, Год журнала: 2025, Номер unknown

Опубликована: Март 22, 2025

Язык: Английский

Процитировано

0
Evaluating climate extremes and their association with floods in the Baro Akobo River basin using CMIP6 and Hydrological Modelling DOI
sintayehu Abera Wondimu, Tadesse Tujuba Kenea,

Kumneger Elias Tafesse

и другие.

Research Square (Research Square), Год журнала: 2025, Номер unknown

Опубликована: Апрель 15, 2025

Abstract Recent studies indicate climate change-driven extreme weather events have led to frequent flooding in many East African countries, including Ethiopia. This study evaluates extremes and their association with floods the Baro Akobo River Basin, Ethiopia, using CMIP6 models HEC-HMS hydrological modeling. We use daily precipitation temperature from 30 meteorological stations, 12 Global Climate Models (GCMs) under two shared socioeconomic pathways (SSPs), SSP2-4.5 SSP5-8.5 scenarios. The GCMs are evaluated at time scale observed data over period 1985 2014, resulting MPI-ESM1-2-HR, INM-CM4-8, FGOALS-g3, GFDL-ESM4 top four best-performing basin. utilize Expert Team Change Detection Indices (ETCCDI) assess basin, focusing on five precipitation-based temperature-based indices due anticipated correlation flood events. then simulate peak discharge basin’s outlet model correlate annual maximum flow (Qmax) indices. results show that during mid-century (2041–2070), all extremes, except for Consecutive Wet Days (CWD), demonstrate a strong Qmax, characterized by coefficients ranging 0.54 0.87 both In contrast, end of century (2071–2100), CWD Maximum 1-day (Rx1day) exhibit weak correlation; however, Total Precipitation (PRCPTOT), 5-day (Rx5day), Numbers Heavy (R10mm) display correlations, 0.55 0.85 All relatively positive Qmax coldest night (TNn) During end-century, Warmest Night Temperature (TNx), negatively Qmax. further reveal an increasing trend PRCPTOT, Rx5day, R10mm mid century, suggesting greater likelihood heavy may elevate risk ,. Therefore, research is recommended evaluate extent impact which will help devise appropriate mitigation strategies.

Язык: Английский

Процитировано

0
Flood Vulnerability Assessment in Ungauged Watersheds: a Simple Approach Using Regional Functions and 1D Hydraulic Modelling DOI Open Access
Gabriela Rezende de Souza, Luiz Fernando Coutinho de Oliveira, Jhones da Silva Amorim

и другие.

Revista Brasileira de Geografia Física, Год журнала: 2025, Номер 18(4), С. 2551 - 2572

Опубликована: Апрель 22, 2025

In this study, we identified flood risk areas using maximum streamflow estimates derived from regional functions and 1D hydraulic modelling in an urban ungauged watershed Lavras, Minas Gerais, Brazil. Our approach focused on employing simple techniques based secondary data to support management regions lacking hydrological monitoring technical expertise. The study evaluated two developed for the Grande River Basin identify most suitable mapping. Flood maps 5, 10, 50 100-year return periods were created software HEC-RAS assessed population vulnerability under current regulated land use scenarios. By data, work provides a practical decision-making cities with limited resources, highlighting need improved drainage management.

Язык: Английский

Процитировано

0