Age-Based Community Resilience Assessment Using Flood Resilience Index Approach: Inference from the Gyor City, Hungary

Geographies, Journal Year: 2025, Volume and Issue: 5(2), P. 16 - 16

Published: April 1, 2025

Floods represent a significant threat to the livelihoods of individuals and pose challenges global development prospects. An individual’s age is an essential predictor for adopting flood preparedness measures. In this context, present study aims identify community resilience based on age. Two groups were considered analysis, i.e., young group (age less than 24 years) adult over years), using Flood Resilience Index (FRI) approach through five dimensions resilience, natural, physical, economic, social, institutional. The data analysis included 200 respondents, with each compromise equaling 100 from both groups. A total 34 structured questions analyzed FRI dimensions. survey results show that overall in low, but adults are relatively more flood-resilient group. Moreover, all differences between two groups, appearing resilient shows local authorities protection bodies should focus community’s youth regarding risks flooding.

Language: Английский

---

Accelerating compound flood risk assessments through active learning: A case study of Charleston County (USA)

Natural hazards and earth system sciences, Journal Year: 2025, Volume and Issue: 25(4), P. 1353 - 1375

Published: April 9, 2025

Abstract. Flooding is the natural hazard most likely to affect individuals and can be driven by rainfall, river discharge, storm surge, tides, waves. Compound floods result from their co-occurrence generate a larger flood when compared synthetic generated respective drivers occurring in isolation one another. Current state-of-the-art stochastic compound risk assessments are based on statistical, hydrodynamic, impact simulations. However, nature of some key variables flooding process often not accounted for as adding exponentially increases computational costs (i.e., curse dimensionality). These simplifications (e.g., constant driver duration or time lag between drivers) may lead mis-quantification risk. This study develops conceptual framework that allows better representation while limiting increase overall time. After generating events statistical model fitted selected drivers, proposed applies treed Gaussian (TGP). A TGP uses active learning explore uncertainty associated with response damages events. Thereby, it informs regarding best choice hydrodynamic simulations run reduce damages. Once predicts damage all within tolerated range, calculated. As proof concept, was applied case Charleston County (South Carolina, USA) model, which used equidistant sampling linear scatter interpolation. The decreased factor 4 root mean square error 8. With reduction errors, additional such drivers' were included assessment. Not accounting these resulted an underestimation 11.6 % (USD 25.47 million) expected annual (EAD). Thus, accelerating learning, presented here more comprehensive loosens constraints imposed dimensionality.

Language: Английский

---

James Buttle Review: Bed, Banks and Beyond: River Flood Dynamics

Hydrological Processes, Journal Year: 2025, Volume and Issue: 39(4)

Published: April 1, 2025

ABSTRACT Floods are amplified and attenuated by features processes across spatial scales, defined here as flood dynamics. We review synthesise these influences at the catchment, river network reach scales a means of integrating understanding controls on dynamics identifying key questions that arise because differences in techniques investigation disciplinary emphases between scales. Catchment‐scale include catchment area, topography, lithology, land cover, precipitation, antecedent conditions human alterations such changing cover. Network‐scale topology, longitudinal variations geometry successive corridor reaches, lakes wetlands including flow regulation cumulative changes channel‐floodplain connectivity multiple reaches network. Reach‐scale water sources, artificial levees, channelisation, bank stabilisation, to floodplain cover drainage, dike operation, process‐based restoration urban stormwater management. Our synthesis relevant literature suggest relative importance varies Hillslope response may dominate hydrograph characteristics smaller catchments, for example, whereas exert progressively stronger with increasing size. Scale‐specific advances dynamics, rainfall‐runoff analyses movements from uplands into channel networks (catchment‐scale), along (network‐scale) investigations biophysical feedbacks hydraulic roughness (reach‐scale), have largely contributed but there remain important disconnects diverse bodies research outstanding related effects

Language: Английский

---

Toward Brague river flood modelling 1: contribution validity of a simplified 1D-2D hydraulic model to preliminary flash flood understanding

Deleted Journal, Journal Year: 2025, Volume and Issue: unknown

Published: May 19, 2025

Language: Английский

---

Climate impact on flood changes – an Austrian-Ukrainian comparison

Journal of Hydrology and Hydromechanics, Journal Year: 2023, Volume and Issue: 71(3), P. 271 - 282

Published: Aug. 10, 2023

Abstract This study compares the flood regime of rivers in Ukraine and Austria over last decades. We used data from mountain lowland watersheds, where floods are caused by different processes. In order to identify possible shifts day occurrence annual maxima, we apply kernel density method time series two subperiods (1960–1987 1988–2015). use Mann Kendall test at a 5% significance level significant positive or negative trends maximum discharges. Austria, observe an increasing trend summer associated with precipitation. areas Ukraine, clear reduction spring is observed, linked shallower snow packs warming climate. Ukrainian Carpathians, on other hand, occur throughout year, increase portion liquid precipitation during cold period year leads earlier probability flooding winter.

Language: Английский

---