The State of the Art in Deep Learning Applications, Challenges, and Future Prospects: A Comprehensive Review of Flood Forecasting and Management

Sustainability, Journal Year: 2023, Volume and Issue: 15(13), P. 10543 - 10543

Published: July 4, 2023

Floods are a devastating natural calamity that may seriously harm both infrastructure and people. Accurate flood forecasts control essential to lessen these effects safeguard populations. By utilizing its capacity handle massive amounts of data provide accurate forecasts, deep learning has emerged as potent tool for improving prediction control. The current state applications in forecasting management is thoroughly reviewed this work. review discusses variety subjects, such the sources utilized, models used, assessment measures adopted judge their efficacy. It assesses approaches critically points out advantages disadvantages. article also examines challenges with accessibility, interpretability models, ethical considerations prediction. report describes potential directions deep-learning research enhance predictions Incorporating uncertainty estimates into integrating many sources, developing hybrid mix other methodologies, enhancing few these. These goals can help become more precise effective, which will result better plans forecasts. Overall, useful resource academics professionals working on topic management. reviewing art, emphasizing difficulties, outlining areas future study, it lays solid basis. Communities prepare destructive floods by implementing cutting-edge algorithms, thereby protecting people infrastructure.

Language: Английский

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Time variable effectiveness and cost-benefits of different nature-based solution types and design for drought and flood management

Nature-Based Solutions, Journal Year: 2023, Volume and Issue: 3, P. 100050 - 100050

Published: Jan. 25, 2023

Nature Based Solutions (NBS) for water resources management have potential to mitigate climate change impacts, including more frequent flooding and droughts.Successful uptake requires knowledge on the effects of NBS type design high low flows.The cost-benefits impacts these yield are also essential.Here, we used a modelling framework explore two common types (Runoff Attenuation Features [RAFs] tree planting), both varying in design, specifically location scale.Data from an upland Scottish catchment (~1km 2 ) informed coupled physically-based hydrological (MIKE SHE) hydraulic 11) approach.NBS scenario flows, as well groundwater recharge were compared indices specific whisky industry study site's 25year cost-benefit analysis.Overall, planting reduced flows groundwater, whereas RAFs had positive but smaller effect.Both medium although less than RAFs.RAF particularly increases storage volume spread over greater areas, increased all aspects recharge.Greater areas highest flows.NBS affected timing availability, retention transfer, this depended antecedent wetness, so should be considered optimal performance or avoiding negative effects.The analysis revealed that would financially feasible approach enhancing not.This highlighted implementing alongside could help optimise cost-effective local availability issues.Critically inform implementation flood drought likely become future with change.

Language: Английский

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Hydro-geomorphological modelling of leaky wooden dam efficacy from reach to catchment scale with CAESAR-Lisflood 1.9j

Geoscientific model development, Journal Year: 2025, Volume and Issue: 18(5), P. 1395 - 1411

Published: March 5, 2025

Abstract. Leaky wooden dams (LDs) are woody structures installed in headwater streams that aim to reduce downstream flood risk through increasing in-channel roughness and decreasing river longitudinal connectivity order desynchronise peaks within catchments. Hydrological modelling of these omits sediment transport processes since the impact on flow routing is considered negligible comparison in-stream hydraulics. Such also excluded grounds computational expense. Here we present a study advances our ability model leaky roughness-based representation landscape evolution CAESAR-Lisflood, introducing flexible representative approach simulating LDs reach broader catchment-scale processes. The hydrological geomorphological sensitivity tested against grid resolution variability key parameters such as dam gap size roughness. influence isolation from whilst evaluating expense, domain outputs, internal evolution. findings show increased volume water stored test (channel length 160 m) by up an magnitude, it reduced discharge 31 % during storm event (6 h, 1-in-10-year event). We demonstrate how this due acting induce geomorphic change thus channel When considering larger resolutions, however, results care must be overestimations localised scour deposition behavioural approaches should adopted when using CAESAR-Lisflood absence robust empirical validation data.

Language: Английский

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Mitigating floods and attenuating surface runoff with temporary storage areas in headwaters

Wiley Interdisciplinary Reviews Water, Journal Year: 2023, Volume and Issue: 10(3)

Published: Jan. 24, 2023

Abstract Temporary storage areas (TSAs) represent a category of soft‐engineered nature‐based solutions that can provide dispersed, small‐scale throughout catchment. TSAs store and attenuate surface runoff, providing new additional during flood events. The need for such catchment will become more urgent as the frequency magnitude extreme hydrological events increases due to climate change. Implementation in headwater catchments is slowly gaining momentum, but practitioners still require further evidence on how measures function This review focuses role relatively (<10,000 m 3 ) risk management. It also explores potential wider benefits implementing these part an integrated management approach. TSA mitigation effectiveness primarily determined by TSA's available prior event. At local scale, this be represented relationship between inputs, outputs total storage. Factors influencing functioning are discussed, with considerations optimizing future design Hydrological models have suggested could used effectively high However, should involve addressing lack empirical showing scale might change time. Small‐scale offer holistic sustainable approach deliver both landowners society. article categorized under: Engineering Water > Sustainable Science Extremes Processes

Language: Английский

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The role of rewilding in mitigating hydrological extremes: State of the evidence

Wiley Interdisciplinary Reviews Water, Journal Year: 2024, Volume and Issue: 11(3)

Published: Feb. 14, 2024

Abstract Landscape rewilding has the potential to help mitigate hydrological extremes by allowing natural processes function. Our systematic review assessed evidence base for rewilding‐driven mitigation of high and low flows. The uncovers a lack research directly addressing rewilding, but highlights in analogue contexts which can, with caution, indicate nature change. There is before‐after studies that enable deeper examination temporal trajectories legacy effects, on scrub shrubland habitats common projects. Over twice as much available flows compared flows, fewer than one third address simultaneously, limiting our understanding co‐benefits contrasting effects. Flow magnitude variables are better represented within literature flow timing variables, there greater emphasis modeling direct measurement Most report mitigating effect, variability some exceptions. change more complex suggests higher increased risks associated certain based very narrow base. We recommend future aims to: capture effects both given type change; analyze characteristics extremes; examine (before after data) ideally using full before‐after‐control‐impact design. This article categorized under: Human Water > Value Science Hydrological Processes Extremes Life Conservation, Management, Awareness

Language: Английский

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Aerial-Drone-Based Tool for Assessing Flood Risk Areas Due to Woody Debris Along River Basins

Drones, Journal Year: 2025, Volume and Issue: 9(3), P. 191 - 191

Published: March 6, 2025

River morphology is highly dynamic, requiring accurate datasets and models for effective management, especially in flood-prone regions. Climate change urbanisation have intensified flooding events, increasing risks to populations infrastructure. Woody debris, a natural element of river ecosystems, poses dual challenge: while it provides critical habitats, can obstruct water flow, exacerbate flooding, threaten Traditional debris detection methods are time-intensive, hazardous, limited scope. This study introduces novel tool integrating artificial intelligence (AI) computer vision (CV) detect woody rivers using aerial drone imagery that fully integrated into geospatial Web platform (WebGIS). The identifies segments assigning risk levels based on obstruction severity. When orthoimages as input data, the georeferenced locations detailed reports support flood mitigation management. methodology encompasses data acquisition, photogrammetric processing, detection, assessment, validated real-world data. results show tool’s capacity large automatic manner. approach automates analysis, making easier manage providing valuable assessing risk.

Language: Английский

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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

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Trajectories of river‐floodplain morphology and hydraulics following compounding wildfire‐flood disturbances

Earth Surface Processes and Landforms, Journal Year: 2025, Volume and Issue: 50(5)

Published: April 1, 2025

Abstract Wide, low‐gradient segments within river networks (i.e., beads) play a critical role in absorbing and morphologically adapting to disturbances, including wildfires debris flows. However, the magnitude rate of morphological adjustment subsequent hydraulic conditions provided by beads compared pre‐disturbance are not well understood. This study analysed trajectories morphology, flood attenuation fish habitat following 2020 Cameron Peak Fire July 2022 flow at Little Beaver Creek, Colorado, USA. Using repeat aerial imagery, ground‐based surveys hydrodynamic modelling, we assessed changes 600‐m‐long bead Creek. Metrics floodplain destruction formation channel migration greatly increased after first post‐fire runoff season but returned historical range these metrics three years fire. The deposited sediment, infilled side channels, reduced pool area bars islands. Flood wave did show clear improvement or impairment despite more rapid system geometry, geomorphic unit abundance location. ability site attenuate peak flows changed minimally inconsistently over studied floods. Various lotic changed—namely reduction access deepening certain pools—but overall flow‐type diversity was largely impacted. resilience active Creek fire disturbances while retaining key services demonstrates importance for enhancing river‐floodplain large disturbance events highlights as areas preservation restoration.

Language: Английский

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Open check dams and large wood: head losses and release conditions

Natural hazards and earth system sciences, Journal Year: 2020, Volume and Issue: 20(12), P. 3293 - 3314

Published: Dec. 4, 2020

Abstract. Open check dams are strategic structures to control sediment and large-wood transport during extreme flood events in steep streams piedmont rivers. Large wood (LW) tends accumulate at such structures, obstruct their openings increase energy head losses, thus increasing flow levels. The extent variability which the stage–discharge relationship of a dam is modified by LW presence has so far not been clear. In addition, sufficiently high flows may trigger sudden release trapped with eventual dramatic consequences downstream. This paper provides experimental quantification LW-related loss simple ways compute related water depth various shapes: trapezoidal, slit, slot sabo (i.e. made piles), consideration capacity through open bodies atop spillways. it was observed that often released over structure when overflowing depth, i.e. total minus spillway elevation, about 3–5 times mean log diameter. Two regimes accumulations were observed. Dams low permeability generate velocity upstream, then accumulates as floating carpets, single layer. Conversely, maintain velocities immediately upstream dense complex 3D patterns. because drag forces stronger than buoyancy, allowing logs be sucked below surface. cases, releases occur for higher losses higher. A new dimensionless number, namely buoyancy-to-drag-force ratio, can used whether (or not) stay floating-carpet domain where buoyancy prevails force.

Language: Английский

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Rewilding and the water cycle

Wiley Interdisciplinary Reviews Water, Journal Year: 2023, Volume and Issue: 10(6)

Published: Aug. 8, 2023

Abstract Rewilding is a radical approach to landscape conservation that has the potential help mitigate flood risk and low flow stresses, but this remains largely unexplored. Here, we illustrate nature of hydrological changes rewilding can be expected deliver through reducing or ceasing land management, natural vegetation regeneration, species (re)introductions, river networks. This includes major above‐ below‐ground structure (and hence interception, evapotranspiration, infiltration, hydraulic roughness), soil properties, biophysical channels. The novel, complex, uncertain, longer‐term rewilding‐driven change generates some key challenges, currently relatively constrained in geographical extent. Significant water cycle benefit people are possible there an urgent need for improved understanding prediction trajectories their effects, generation knowledge tools facilitate stakeholder engagement, extension geography opportunities. article categorized under: Science Water > Hydrological Processes Extremes Life Conservation, Management, Awareness

Language: Английский

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