Demarcating paleoflood repositories using documentary evidence and flood geomorphic landforms

Quaternary Science Advances, Journal Year: 2025, Volume and Issue: 18, P. 100281 - 100281

Published: April 14, 2025

Language: Английский

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Flood Risk Assessment and Mapping: A Case Study from Australia’s Hawkesbury-Nepean Catchment

Hydrology, Journal Year: 2023, Volume and Issue: 10(2), P. 26 - 26

Published: Jan. 17, 2023

Floods are the most common and costliest natural disaster in Australia. Australian flood risk assessments (FRAs) mostly conducted on relatively small scales using modelling outputs. The aim of this study was to develop a novel approach index-based analysis multi-criteria decision-making (MCDM) method for FRA large spatial domain. selected case area Hawkesbury-Nepean Catchment (HNC) New South Wales, which is historically one flood-prone regions HNC’s high made distinctly clear during recent significant events 2021 2022. Using MCDM method, an overall Flood Risk Index (FRI) HNC calculated based hazard, exposure, vulnerability indices. Inputs indices were ensure that they scalable replicable, allowing them be applied elsewhere future management plans. results demonstrate displays risk, especially its urbanised floodplain. For examined March event, found have over 73% (or 15,900 km2) at ‘Severe’ or ‘Extreme’ risk. Validating developed FRI correspondence actual flooding observations event Receiver Operating Characteristic (ROC) statistical test, value 0.803 obtained (i.e., very good). proof-of-concept methodology assessment scale has potential used as framework further approaches.

Language: Английский

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Assessing the accuracy of open-source digital elevation models for the geomorphological analysis of very small islands of Indonesia

Applied Geomatics, Journal Year: 2023, Volume and Issue: 15(4), P. 957 - 974

Published: Nov. 7, 2023

Language: Английский

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An Overview of the Importance of DEM Resolution in Soil Erosion Assessment

Papers in Applied Geography, Journal Year: 2024, Volume and Issue: 10(3), P. 207 - 216

Published: June 3, 2024

Soil erosion is a geomorphic process that can cause hazards and socioeconomic losses. These processes occur through subsurface overland flows. We conducted literature review on the importance of digital elevation model (DEM) resolution in soil assessment. This article presents state art regarding DEM It explains why important for understanding how assessed. Further research needed, however, to better explore connectivity morphology erosion, including its watershed behavior, as well several challenges faced using DEMs analysis. Understanding quantitative variables initiate considering multihazard assessments aid developing techniques assisting decision makers designing accurate systems. Exploring also needs improved high-resolution tools (e.g., unmanned aerial vehicles) enable more reliable predictions detection erosion-affected regions. Addressing these knowledge gaps will enhance our surface contribute landscape evolution, further improve development effective strategies control. The findings are highly transferable diverse geographical contexts worldwide.

Language: Английский

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Space-time evolution of urban flood resilience and its scenario simulation research: a case study of Zhejiang Province, China

Heliyon, Journal Year: 2025, Volume and Issue: 11(4), P. e42698 - e42698

Published: Feb. 1, 2025

Language: Английский

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