Journal of Geophysical Research: Earth Surface最新文献

{"title":"The Influence of Gravel-Bed Structure on Grain Mobility Thresholds: Comparison of Force-Balance Approaches","authors":"D. Whitfield,&nbsp;E. R. C. Baynes,&nbsp;R. A. Hodge,&nbsp;S. P. Rice,&nbsp;E. M. Yager","doi":"10.1029/2025JF008333","DOIUrl":"https://doi.org/10.1029/2025JF008333","url":null,"abstract":"<p>Grain force-balance models utilize grain protrusion and in-situ resistance force data to evaluate the likely distributions of gravel-bed sediment entrainment thresholds, specifically dimensionless critical shear stress (<i>τ</i>*_<i>c</i>). These methods can give insight into the spatial variability of particle mobilities both within a channel, and between different gravel-beds, but are yet to be evaluated across multiple sites with varying texture and fabric. We evaluate two published force-balance approaches: (a) a Monte Carlo style sampling approach using grain size and topography distributions from field measurements; and (b) an automated point cloud segmentation and analysis approach with an updated set of force-balance equations, Pro+. We compare the workflows, assumptions and inputs for each approach, apply them to an extensive UK-wide data set comprising 45 upland riverbeds, and evaluate the estimated <i>τ</i>*_<i>c</i> distributions. We find that mobility thresholds estimated from both methods are variable, with median <i>τ</i>*_<i>c</i> ranging from 0.05 to 0.15, and are consistent with published values of approximately 0.02–0.1. Uncertainties in grain sampling strategy or point cloud segmentation quality lead to markedly different grain size distributions between approaches, but their resulting influences on <i>τ</i>*_<i>c</i> distributions are small relative to the range of estimated <i>τ</i>*_<i>c</i>. Sensitivity analyses on <i>τ</i>*_<i>c</i> distributions for grain-size fractions also show that bed mobilities are sensitive to the roughness height of the velocity profile. We highlight uncertainties associated with these approaches, suggest areas for further targeted comparisons between methods, and provide guidance for the application of grain force-balance models for estimating entrainment thresholds and bed stability in gravel-bed rivers.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 5","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-05-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2025JF008333","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143908958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Discrete Simulations of Fluid-Driven Transport of Naturally Shaped Sediment Particles","authors":"Qiong Zhang,&nbsp;Eric Deal,&nbsp;J. Taylor Perron,&nbsp;Jeremy G. Venditti,&nbsp;Santiago J. Benavides,&nbsp;Matthew Rushlow,&nbsp;Ken Kamrin","doi":"10.1029/2024JF007937","DOIUrl":"https://doi.org/10.1029/2024JF007937","url":null,"abstract":"<p>The particles in natural bedload transport processes are usually aspherical and span a range of shapes and sizes, which is challenging to be represented in numerical simulations. We assemble existing numerical methods to simulate the transport of natural gravel (NG). Starting with computerized tomographic scans of natural grains, our method approximates the shapes of these grains by “gluing” spheres (SP) of different sizes together with overlaps. The conglomerated SP move using a Discrete Element Method which is coupled with a Lattice Boltzmann Method fluid solver, forming the first complete workflow from particle shape measurement to high-resolution simulations with hundreds of distinct shapes. The simulations are quantitatively benchmarked by flume experiments. Beyond the flume, in a more generalized wide wall-free geometry, the numerical tool is used to further test a recently proposed modified sediment transport relation, which takes particle shape effects into account, including the competition between hydrodynamic drag and material friction. Unlike a physical experiment, our simulations allow us to vary the hydrodynamic drag coefficient of the NG independently of the material friction. The results support the modified sediment transport relation. The simulations also provide insights into particle-level kinematics, such as particle orientations. Though particles below the bed surface prefer to orient with their shortest axes perpendicular to the bed surface, with a decaying tendency with an increasing height above the bed surface, the orientational preferences in transport processes are much weaker than those in settling processes. NG rotates relatively freely during bedload transport.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 5","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JF007937","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143889138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Details and Mechanisms of Permafrost Ground Deformation on the Tibetan Plateau Revealed by GNSS-IR and In Situ Hydrothermal Monitoring","authors":"Wei Chen,&nbsp;Lingxiao Wang,&nbsp;Lin Zhao,&nbsp;Wei Wan,&nbsp;Shibo Liu,&nbsp;Chong Wang,&nbsp;Lewen Zhao,&nbsp;Guangyue Liu,&nbsp;Defu Zou,&nbsp;Chengjia Liang,&nbsp;Yuanwei Wang,&nbsp;Chenqi Huang","doi":"10.1029/2024JF008012","DOIUrl":"https://doi.org/10.1029/2024JF008012","url":null,"abstract":"<p>This study employs the Global Navigation Satellite System-Interferometric Reflectometry (GNSS-IR) technique, along with in situ hydrothermal data, to explore the details and mechanisms of permafrost ground surface deformation in the hinterland Tibetan Plateau. Through analyzing GNSS data collected from November 2021 to April 2024, seasonal deformation of up to approximately 5 cm, caused by active layer freeze-thaw cycles, was identified. Additionally, more than 2 years of continuous monitoring revealed a clear ground subsidence rate of 2.7 cm per year due to permafrost thawing. We compared the GNSS-IR monitored deformation with simulated deformation using in situ soil moisture and temperature profiles at 5–220 cm depth and found that the correlation reached 0.9 during the active-layer thawing and freezing period; we also observed that following an exceptionally thawing season, the subsequent thawing season experiences notably greater thaw subsidence. Furthermore, we analyzed the differences in GNSS-IR monitoring results with and without the inclusion of Beidou Navigation Satellite System (BDS) signals, and found that the inclusion of BDS signals reduced the standard deviation of GNSS-IR results by an average of 0.24 mm on snow-free periods, but increased by an average of 0.12 mm during the snow cover periods. This may be due to the longer wavelength of the BDS signal, which exhibits greater diffraction through snow and reduces signal reflectivity compared to other satellite systems. The research results demonstrate the potential and ability of continuous GNSS-IR ground surface deformation monitoring in revealing and exploring the hydrothermal processes within permafrost under climate change.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 5","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing Debris Flow Warning via Machine Learning Feature Reduction and Model Selection","authors":"Qi Zhou,&nbsp;Hui Tang,&nbsp;Clément Hibert,&nbsp;Małgorzata Chmiel,&nbsp;Fabian Walter,&nbsp;Michael Dietze,&nbsp;Jens M. Turowski","doi":"10.1029/2024JF008094","DOIUrl":"https://doi.org/10.1029/2024JF008094","url":null,"abstract":"<p>The advent of machine learning has significantly improved the accuracy of identifying mass movements through the seismic waves they generate, making it possible to implement real-time early warning systems for debris flows. However, we lack a profound understanding of the effective seismic features and the limitations of different machine learning models. In this work, we investigate eighty seismic features and three machine learning models for single-station-based binary debris flow classification and multi-station-based warning tasks. These seismic features, derived from physical and statistical knowledge of impact sources, are grouped into five sets: Benford's law, waveform, spectra, spectrogram, and network. The machine learning models belong to two families: two ensemble models, Random Forest and eXtreme Gradient Boosting (XGBoost); one recurrent neural network model, Long Short-Term Memory (LSTM). We analyzed feature importance from the ensemble models and found that the number and even the types of seismic features are not critical for training an effective binary classifier for debris flow. When using models designed to capture patterns in sequential data rather than focusing on information only in one given window, using the LSTM does not significantly improve the performance of binary debris flow classification task over Random Forest and XGBoost. For the multi-station-based debris flow warning task, the LSTM model predicts debris flow probability more consistently and provides longer warning times. Our proposed framework simplifies machine learning-driven debris flow classification and lays the foundation for affordable seismic signal-driven early warning using a sparse seismic network.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JF008094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rheology of Debris-Ice Avalanches: Insights From the Flow of Bi-Density Mixtures in a Vane Shear Cell","authors":"Mohsen Kamali Zarch,&nbsp;Limin Zhang","doi":"10.1029/2024JF008184","DOIUrl":"https://doi.org/10.1029/2024JF008184","url":null,"abstract":"<p>Debris-ice avalanches often exhibit higher mobility than debris avalanches, known as hypermobility. Given the increasing destructive power and frequency of such hazards, understanding their rheology could provide insights into their mobility and flow dynamics. Using 3 mm-sized glass and polystyrene beads instead of debris and ice materials, a series of rheological tests was conducted in a vane rheometer at seven different vane speeds on dry specimens with six different polystyrene volumetric contents. The flow dynamics, including the flow curves and the volume change, were evaluated to deduce governing rheological laws. Results reveal that the rheological behavior follows a non-monotonic friction law with a transitional solid-liquid-like behavior and a monotonic dynamic dilatancy law. A density-induced segregation process has been observed, which interplays with rheology. Further analysis of the results demonstrates that, besides the roles of density and the critical state friction parameter, the dynamic dilatancy and segregation process also contribute to enhance the flow mobility of these bi-density mixtures. The proposed rheological laws can be applied to glacier mountain hazard assessment.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143871797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Steady-State Dune Morphodynamics Through the Barchan-Parabolic Transition","authors":"Jeanne Alkalla,&nbsp;Clément Narteau,&nbsp;Olivier Rozier,&nbsp;Jean Vérité,&nbsp;Sylvain Courrech du Pont","doi":"10.1029/2024JF008220","DOIUrl":"https://doi.org/10.1029/2024JF008220","url":null,"abstract":"<p>Dunes in the presence of vegetation exhibit a variety of shapes, from barchan to parabolic forms. Given the rapid fluctuations in environmental conditions across space and time, it is challenging to ascertain whether these dune shapes are merely transient or indicative of a dynamic equilibrium between sediment transport and vegetation growth. In this study, plant cover is introduced into a 3D cellular automaton dune model to numerically investigate the influence of vegetation on dune morphodynamics. Numerical simulations show that isolated parabolic dunes are unstable, increasing or decreasing in size according to the volume of vegetated sediment they remobilize downstream or deposit upstream in their horns. When specific boundary conditions are applied, dunes converge on steady states that accurately capture the barchan-parabolic transition. Most of the isolated dune shapes observed in nature are reproduced at steady state in the model by increasing the intensity of vegetation processes, from the typical migrating barchans to the fully stabilized parabolic dunes. As the impact of vegetation increases, the steepness of the steady-state dune slopes changes, and the crest curvature reversal occurs. This ensures that all the longitudinal sections of the dune migrate at the same rate by reorienting the transverse sediment fluxes. In the model parameter space, sudden jumps in steady-state properties are associated with the stabilization of upstream horns or crest curvature reversals. These results illustrate why transitional dune shapes between barchans and parabolic dunes are less common in natural environments where environmental conditions are heterogeneous and variable in both space and time.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JF008220","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143865797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Land-To-Sea Sediment Fluxes From a Major Glacial Lake Outburst Flood Were Stepped Rather Than Instantaneous","authors":"L. P. Bailey,&nbsp;D. H. Shugar,&nbsp;M. Tilston,&nbsp;S. M. Hubbard,&nbsp;I. Giesbrecht,&nbsp;J. Del Bel Belluz,&nbsp;J. M. Jackson,&nbsp;M. A. Clare,&nbsp;M. J. B. Cartigny,&nbsp;S. Açıkalın,&nbsp;S. Hage,&nbsp;P. J. Talling,&nbsp;H. Basiuk,&nbsp;B. Menounos,&nbsp;M. Geertsema","doi":"10.1029/2024JF008126","DOIUrl":"https://doi.org/10.1029/2024JF008126","url":null,"abstract":"<p>Glacial lake outburst floods can transport large volumes of sediment. Where these floods reach the coastline, much of the particulate matter is delivered directly to the marine environment. It has been suggested that offshore deposits, specifically in fjord settings, may provide a faithful record of past outburst flood events. However, a lack of observations means that the mechanics and the timing of sediment transport offshore following a glacial lake outburst event remain poorly constrained. Here, we document the changes in sea surface sediment dynamics following the 28 November 2020 Elliot Lake outburst flood in British Columbia, which transported ∼4.3 × 10⁶ m³ of sediment into an adjacent fjord (Bute Inlet) as a deep nepheloid layer directly following the event. However, analysis of sea surface turbidity using in situ measurements and satellite-derived estimates reveals that changes in fjord-head surface turbidity in the months following the major flood were surprisingly small. The highest measured sea surface turbidity instead occurred 5 months after the initial outburst flood. This delayed increase in seaward sediment flux coincided with the onset of the spring freshet, when the discharge of the rivers feeding Bute Inlet increases each year. We suggest that large quantities of sediment were temporarily stored within the river catchment and were only remobilized when river discharge exceeded a threshold level following seasonal snowmelt. Our results reveal a temporal disconnect, where onshore to offshore transfer of sediment is stepped following a glacial lake outburst flood, which could complicate the sedimentology of subsequent deposits.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JF008126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143826819","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Washout Versus Washover: Distinct Trajectories of Barrier Reshaping","authors":"Joshua D. Himmelstein,&nbsp;Antonio B. Rodriguez","doi":"10.1029/2024JF008047","DOIUrl":"https://doi.org/10.1029/2024JF008047","url":null,"abstract":"<p>Barrier islands are dynamic coastal landforms that can migrate landward from the press of sea-level rise and the pulse of storms. Previous work on barriers largely focuses on landward sediment mobilization, particularly through overwash, while the role of outwash—where sediment is transported seaward—remains underexamined. There exists a lack of direct comparisons between the processes that restore sediment volume and the timescales of recovery following outwash and overwash events. Here, we used high-resolution mapping and in situ and modeled water levels to quantify morphologic change and its relation to inundation at three contrasting sites. Our results demonstrate that outwash can remain a net erosive scar for years after formation, while overwash magnitude, frequency, and thus persistence vary largely depending on the width and elevational resistance of the barrier. When elevational resistance to overtopping is low, we show that intermediate high-water events can contribute as much sediment to island overwash as larger named storms and that these processes are key for outwash recovery. We find that modeled total water level correlates positively with volume change, while discrepancies between modeled and observed water levels implicate runup overwash as the dominant mode of transport. Together, we use these data to suggest a differentiation between overwash and outwash processes and their resulting morphologies in studies that aim to predict the impact of storms on barrier island transgression rates and broader ecological function.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Functional Regression for Space-Time Prediction of Precipitation-Induced Shallow Landslides in South Tyrol, Italy","authors":"Mateo Moreno,&nbsp;Luigi Lombardo,&nbsp;Stefan Steger,&nbsp;Lotte de Vugt,&nbsp;Thomas Zieher,&nbsp;Alice Crespi,&nbsp;Francesco Marra,&nbsp;Cees van Westen,&nbsp;Thomas Opitz","doi":"10.1029/2024JF008219","DOIUrl":"https://doi.org/10.1029/2024JF008219","url":null,"abstract":"<p>Landslides are geomorphic hazards in mountainous terrains across the globe, driven by a complex interplay of static and dynamic controls. Data-driven approaches have been employed to assess landslide occurrence at regional scales by analyzing the spatial aspects and time-varying conditions separately. However, the joint assessment of landslides in space and time remains challenging. This study aims to predict the occurrence of precipitation-induced shallow landslides in space and time within the Italian province of South Tyrol (7,400 km²). We introduce a functional predictor framework where precipitation is represented as a continuous time series, in contrast to conventional approaches that treat precipitation as a scalar predictor. Using hourly precipitation data and past landslide occurrences from 2012 to 2021, we implemented a functional generalized additive model to derive statistical relationships between landslide occurrence, various static scalar factors, and the preceding hourly precipitation as a functional predictor. We evaluated the resulting predictions through several cross-validation routines, yielding performance scores frequently exceeding 0.90. To demonstrate the model predictive capabilities, we performed a hindcast for a storm event in the Passeier Valley on 4–5 August 2016, capturing the observed landslide locations and illustrating the hourly evolution of the predicted probabilities. Compared to standard early warning approaches, this framework eliminates the need to predefine fixed time windows for precipitation aggregation while inherently accounting for lagged effects. By integrating static and dynamic controls, this research advances the prediction of landslides in space and time for large areas, addressing seasonal effects and underlying data limitations.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JF008219","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143818585","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Identifying Hydraulically Distinct Floodplain Types From High Resolution Topography With Implications for Broad-Scale Flood Routing","authors":"Rebecca M. Diehl,&nbsp;Kenneth S. Lawson,&nbsp;Kristen L. Underwood,&nbsp;Julianne E. Scamardo,&nbsp;Patrick J. Clemins,&nbsp;Beverley C. Wemple","doi":"10.1029/2024JF007984","DOIUrl":"https://doi.org/10.1029/2024JF007984","url":null,"abstract":"<p>Floodplains can significantly impact the routing of flood waves across the landscape, however, their representation in broad-scale water resource and flood prediction models is limited. To identify hydraulically relevant floodplains at scale, we developed a workflow to automatically extract reach-averaged topographic features from high resolution (1-m) LiDAR-derived topographic data. These features were identified from departures in the relationship between hydraulic geometry and flood stage and hypothesized to define and characterize a zone within the floodplain that disproportionately dissipates energy and attenuates floodwaters, called the Energy Dissipation Zone. We applied the workflow in the topographically diverse Lake Champlain Basin in Vermont, USA, and used a K-medoids analysis to cluster reaches into distinct feature-based types that were expected to uniquely route hydrographs. In total, we identified eight clusters of reach types: two that were pre-sorted because of the presence of a waterbody or limited floodplain access and six that reflected variability in reach-averaged mesoscale floodplain features that describe the size and shape of the Energy Dissipation Zone. Reach types had distinct impacts on the attenuation of synthetically derived hydrographs, evaluated using the Muskingum-Cunge method. From these clusters, we propose a Hydraulic Floodplain Classification, which is comparable to other geomorphically defined systems but novel in its focus on the landscape potential to influence flood routing. The automated workflow is repeatable and has the potential to improve the functionality of continental floodplain mapping efforts. Identification of hydraulically effective zones has implications for improved watershed management to meet flood resiliency goals and to improve flood predictions and warnings.</p>","PeriodicalId":15887,"journal":{"name":"Journal of Geophysical Research: Earth Surface","volume":"130 4","pages":""},"PeriodicalIF":3.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1029/2024JF007984","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143801918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}