Journal of Hydrology-Regional Studies最新文献

{"title":"River flow response to changing electricity demand and centralized hydropower operations in the Paranapanema River basin, Brazil","authors":"Thais Fujita ,&nbsp;Luz Adriana Cuartas ,&nbsp;Juliana Andrade Campos ,&nbsp;Peder Hjorth ,&nbsp;Caluan Rodrigues Capozzoli ,&nbsp;Edmilson Dias de Freitas ,&nbsp;Cintia Bertacchi Uvo","doi":"10.1016/j.ejrh.2025.102815","DOIUrl":"10.1016/j.ejrh.2025.102815","url":null,"abstract":"<div><h3>Study region</h3><div>The Paranapanema River Basin, located in southeastern Brazil, is characterized by a cascade of large hydropower plants regulated by a nationally coordinated dispatch system. This basin is a representative case of reservoir-regulated rivers in the country, where multiple dams interact to supply electricity while reshaping natural flow regimes.</div></div><div><h3>Study focus</h3><div>This study examines hydropower-induced variability in river discharge and reservoir volumes using multiresolution wavelet decomposition and signal reconstruction. By analyzing continuous records under operational conditions, the method isolates fluctuations from sub-daily to multi-annual scales. This approach moves beyond average-based analyses, providing a scale-specific view of hydropower modulation. It shows how discharge dynamics arise not only from cascade configuration but also from dispatch coordination, plant design, and hydrological conditions.</div></div><div><h3>New hydrological insights for the region</h3><div>Results show that flow variability patterns align with electricity demand profiles, drought episodes, and institutional milestones in the Brazilian power sector. Hydropower operations display distinct signatures at different time scales, highlighting the responsiveness and complexity of reservoir management. Reconstructing signals in original units improves interpretability and supports regulatory evaluation and energy planning. The proposed framework provides a standardized and reproducible way to assess variability in reservoir-regulated systems, enhancing comparability of hydropower assessments and identifying operational dynamics that shape river flow regimes. It also supports more adaptive and ecologically grounded approaches to hydropower governance in the Paranapanema Basin and beyond.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102815"},"PeriodicalIF":5.0,"publicationDate":"2025-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221767","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":"Analysis of drought propagation from meteorological to hydrological drought under the impact of a super-large reservoir","authors":"Xinbei Wang ,&nbsp;Xinjun Tu ,&nbsp;Tao Peng ,&nbsp;Vijay P. Singh ,&nbsp;Zonglin Zhou ,&nbsp;Kairong Lin","doi":"10.1016/j.ejrh.2025.102801","DOIUrl":"10.1016/j.ejrh.2025.102801","url":null,"abstract":"<div><h3>Study region</h3><div>Hanjiang River basin, China</div></div><div><h3>Study focus</h3><div>The role of large reservoirs in modulating drought propagation is crucial for effective drought management and water resources planning. This study characterized hydrological drought events and their properties, using run theory, and analyzed correlations between the Standardized Precipitation Index (SPI) and Standardized Runoff Index (SRI) at multiple temporal scales. It assessed the impact of the reservoir on drought propagation, that involved translation rate, sensitivity, and improvement in drought duration and severity metrics. Additionally, it employed the copula function combined with a Bayesian network to explore changes in drought propagation thresholds.</div></div><div><h3>New hydrological insights for the region</h3><div>A significant alteration in hydrological drought properties following reservoir construction, with increased frequency of slight and moderate droughts but reduced severity of extreme drought events downstream, was found. The weakening correlation between SPI and SRI at shorter time scales suggested a diminished meteorological influence on hydrological droughts, particularly in midstream and downstream areas. The translation rate decreased significantly at stations closer to the Danjiangkou Reservoir. Improved metrics were effective in quantifying the degree of propagation. Additionally, the thresholds for triggering severe droughts increased. These findings underscore the role of reservoirs in enhancing regional drought resilience, while altering natural drought propagation patterns, providing valuable insights for improving drought prediction and developing adaptive water resources management strategies in the face of climate change.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102801"},"PeriodicalIF":5.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221594","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":"Spatiotemporal evolution of ecological risks in the Yarlung Zangbo River basin: Implications for sustainable hydropower","authors":"Jiaqin Pan ,&nbsp;Hongbo Li ,&nbsp;Yulong Li ,&nbsp;Zongzhu Chen ,&nbsp;Dezhi Wang","doi":"10.1016/j.ejrh.2025.102829","DOIUrl":"10.1016/j.ejrh.2025.102829","url":null,"abstract":"<div><h3>Study region</h3><div>Recent hydropower acceleration in developing countries reveals a key issue: many projects lack basin-wide environmental impact assessments pre-development. As an international waterway, the Yarlung Zangbo River faces similar challenges, underscoring the urgent need for pre-project ecological risk assessments.</div></div><div><h3>Study focus</h3><div>This study proposes a new ecological risk assessment method combining landscape ecological risk with hydrological risk, using the space-time cube (STC) approach to detect risk trends, focusing on hydropower-controlled watersheds.</div></div><div><h3>New hydrological insights</h3><div>Results show that from 2002 to 2022, the average ecological risk in the Yarlung Zangbo River basin decreased from 0.515 to 0.498, with high-risk areas dropping from 51.03 % to 29.14 %, mainly in the east and center. The southeast maintained low risk, while the northwest exhibited higher risk. Persistent hotspots of ecological risk (21.96 % of the area) were concentrated in the west and center, while cold spots (11.58 %) were more common in the east. Watersheds managed by hydropower stations showed a steady decline in ecological risk, with low-risk areas peaking in 2022, suggesting stable or improved operational safety. This study provides a novel concise and efficient preliminary assessment methodology for basin ecological risk, uncovering ecological risk patterns in the Yarlung Zangbo River basin and supporting hydrological policy development and sustainable hydropower development.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102829"},"PeriodicalIF":5.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221571","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":"Improving groundwater recharge estimation in the Kano Plains Aquifer, Western Kenya through global sensitivity analysis and WetSpass-M model validation using groundwater level fluctuations","authors":"Sarah Mutua ,&nbsp;Celray James Chawanda ,&nbsp;George Waswa ,&nbsp;Marijke Huysmans","doi":"10.1016/j.ejrh.2025.102823","DOIUrl":"10.1016/j.ejrh.2025.102823","url":null,"abstract":"<div><h3>Study region</h3><div>The Kano Plains aquifer system in western Kenya, to the east of the Winum Gulf of the Lake Victoria.</div></div><div><h3>Study focus</h3><div>WetSpass-M model was used to estimate recharge for the period between October 2016 to December 2017 during a period of groundwater level monitoring campaigns in the area. To account for model uncertainty, four global sensitivity analysis methods including Sobol, Fourier Amplitude Sensitivity Test, Random Balance Designs Fourier Amplitude Sensitivity Test, and Delta-Moment-Independent Measure were used. The model was validated using the water table fluctuation method.</div></div><div><h3>New hydrological insights for the region</h3><div>Model sensitivities ranging from 0 to 0.7 were calculated. Except Sobol, the sensitivity results are comparable. The most sensitive parameters are <em>average rainfall intensity</em> in the wet indicating that recharge is rainfall-driven when moisture is abundant; the <em>alfa coefficient</em> in the dry season possibly because it is associated with land cover indices, number of rainy days. Sobol analysis produces well-distributed sensitivity indices suggesting its strength to capture interactions and variances across multiple parameters. Recharge estimates from WetSpass-M aligned well with those calculated using the water table fluctuation, at a specific yield of 0.005(-). The calculated maximum and minimum monthly recharge values are 120 mm and 15 mm in April and August 2017 respectively. As would be expected, enhanced recharge is received in rainy seasons and regions with sandy soil.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102823"},"PeriodicalIF":5.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221592","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":"Comparative analysis of adaptation policies and policy instruments for water management in Europe","authors":"Tahereh Zobeidi,&nbsp;Nadejda Komendantova","doi":"10.1016/j.ejrh.2025.102819","DOIUrl":"10.1016/j.ejrh.2025.102819","url":null,"abstract":"<div><h3>Study region</h3><div>Ten European countries, including Finland, Austria, Switzerland, Belgium, the Netherlands, Denmark, Estonia, Spain, Latvia, and Lithuania</div></div><div><h3>Study focus</h3><div>Adaptation policies are deeply structured and shaped by contextual climatic, environmental, social, and governance factors, making them inherently sector-specific. Their effective implementation requires integrated, cross-sectoral approaches, strong governmental engagement, and active citizen engagement. This study conducts a content analysis of adaptation strategies and plans in the water sector across European countries, aiming to identify key themes, policy types, and dominant instruments. Two main documents, the National Adaptation Strategy (NAS) and the National Adaptation Plan (NAP), available on the Climate-ADAPT-2023 platform, have been analyzed.</div></div><div><h3>New hydrological insights for the region</h3><div>All countries in the study use a mix of adaptation strategies, plans, and policy instruments, each focusing on specific instruments. Information-based instruments such as mapping flood risk are the most widely policy instruments by European countries to address adaptation. Many countries rely on infrastructural and technical instruments, particularly for drinking water supply networks, sewage and stormwater systems, irrigation, and flood risk management. Most countries have employed policies such as promoting responsible water use, enhancing water conservation and recycling, assessing flood risks, and managing flood impacts to promote citizen engagement. By systematically analyzing these policies, the study contributes to clarifying fragmented knowledge, highlighting national priorities, and enabling broader cross-country comparisons.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102819"},"PeriodicalIF":5.0,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221591","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":"Machine learning-based identification of multi-source recharges and enrichment mechanism of karst groundwater","authors":"Haitao Yang ,&nbsp;Fengxin Kang ,&nbsp;Yi Liu ,&nbsp;Jialong Li ,&nbsp;Yanshan Dong ,&nbsp;Tingting Zheng ,&nbsp;Peng Qin","doi":"10.1016/j.ejrh.2025.102830","DOIUrl":"10.1016/j.ejrh.2025.102830","url":null,"abstract":"<div><h3>Study region</h3><div>The Changxiao karst water system, southwestern area of Jinan, China</div></div><div><h3>Study focus</h3><div>This study focused on the Changxiao karst water system, employing an integrated approach combining hydrochemical methods, PCA-APCS-MLR receptor modeling, and machine learning to identify groundwater sources and spatial distribution patterns. The enrichment mechanisms were investigated through systematic analysis of geomorphological features, geological structures, lithostratigraphic characteristics, and hydrodynamic conditions.</div></div><div><h3>New hydrological insights</h3><div>The hydrochemical types of groundwater in the Changxiao karst system are primarily derived from rock weathering and leaching processes. SOM-K-means clustering analysis revealed a triple mixing characteristic in the Collecting and discharging zone (CDZ), integrating contributions from the Southern replenishment area (SRA), Western lateral runoff area (WLR), and Yellow River (YR) infiltration, confirming their close hydraulic connectivity. The CDZ exhibits well-developed fracture-karst systems, receiving combined recharge from the SRA, WLR, and YR. This area possesses well-developed conduits, substantial fracture-karst storage, and convergent recharge pathways—establishing fundamental prerequisites for groundwater accumulation in carbonate aquifers. By integrating artificial intelligence, hydrochemical analysis, and statistical models, this study constructs a multiscale analytical framework for karst groundwater research, offering novel insights for optimizing water source protection and urban water supply strategies.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102830"},"PeriodicalIF":5.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221768","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":"Deep metamorphic carbon carried by hot spring controls carbon budget of mountainous rivers: Evidence from hydrochemistry and δ13C-DIC, δ13C-DOC isotopes in the south Tibetan Plateau","authors":"Jinlin Zhou ,&nbsp;Yingchun Wang ,&nbsp;Yuhe Fan ,&nbsp;Shuang Liao ,&nbsp;Pengfei Chen ,&nbsp;Zhongping Li ,&nbsp;Chunhui Cao ,&nbsp;Takahiro Hosono","doi":"10.1016/j.ejrh.2025.102818","DOIUrl":"10.1016/j.ejrh.2025.102818","url":null,"abstract":"<div><h3>Study region</h3><div>Southern Tibet includes Cona-Woka Rift, Yadong-Gulu Rift, and Shenzha-Dingjie Rift.</div></div><div><h3>Study focus</h3><div>This study investigates the effects of groundwater on riverine carbon dynamics in mountainous river systems. Hydrochemical compositions, hydrogen-oxygen isotopes, and δ¹³C-DIC and δ¹³C-DOC isotopes were analyzed for 20 hot springs and their associated upstream and downstream rivers. A mass balance approach, PHREEQC reactive transport models, and entropy-weighted water quality index (EWQI) calculations were employed to quantify the mixing of groundwater and evaluate its impacts on river water chemistry. The groundwater mixing ratio in rivers ranges from 0.2 % to 65.4 %, with an average of 14.5 %, and metamorphic deep-sourced carbon accounts for 82 % of the inorganic carbon carried by groundwater.</div></div><div><h3>New hydrological insights for the region</h3><div>Groundwater discharge significantly modifies riverine dissolved inorganic carbon (DIC) fluxes, contributing an estimated 10.8 ± 0.38 Tg C/year to rivers across the Qinghai-Tibet Plateau. The mixing of deep-sourced metamorphic carbon not only alters the riverine carbon budget and enhances CO₂ outgassing potential, but also deteriorates downstream water quality. These findings underscore the critical yet previously underestimated role of deep geological processes in regulating surface cycles within high-altitude orogenic systems, offering new perspectives for carbon flux estimations and aquatic ecosystem management in the Tibetan Plateau region.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102818"},"PeriodicalIF":5.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221593","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":"Geospatial and satellite gravity-based assessment of groundwater potential in the Borkena Watershed, Northern Ethiopia","authors":"Awol Mohammed ,&nbsp;Tariku Takele ,&nbsp;Abraham Mechal ,&nbsp;Muralitharan Jothimani","doi":"10.1016/j.ejrh.2025.102828","DOIUrl":"10.1016/j.ejrh.2025.102828","url":null,"abstract":"<div><h3>Study region</h3><div>Borkena Watershed, located in the Amhara regional state, Northern Ethiopia</div></div><div><h3>Study focus</h3><div>In the water-stressed Borkena Watershed of Northern Ethiopia, identifying reliable groundwater sources is vital for sustaining livelihoods and agriculture. This study delineates aquifer potential zones using an integrated geospatial framework combining GIS, satellite gravity data, and Multi-Criteria Decision Analysis. Eight aquifer potential controlling parameters, elevation, lithology, lineament density, slope, rainfall, land use/land cover, soil type, and drainage density, were weighted via the Analytical Hierarchy Process to reflect their influence on groundwater occurrence. Satellite-derived gravity anomalies (e.g., Free-Air and Residual anomalies) enhanced subsurface characterization, improving the precision of aquifer mapping.</div></div><div><h3>New hydrogeological insight for the region</h3><div>The resulting aquifer potential zones classified the watershed into five categories: very high (11.3 %), high (21.7 %), moderate (27.6 %), low (22.9 %), and poor (16.5 %) groundwater potential. Over 60 % of the watershed falls within the moderate to high groundwater potential zones, indicating that the area presents promising conditions for groundwater development. These Zones are characterized by fractured volcanic rocks, alluvial sediments, high lineament density, gentle slopes, and low drainage density, showing superior infiltration and storage capacity. Validation of the aquifer potential zones using 16 georeferenced groundwater points yielded a 75 % spatial agreement, supported by a ROC curve accuracy of 73.5 %. Moreover, the delineated aquifer potential zones were found to be consistent with the results of the satellite-derived gravity analysis. This study supports SDG 6 (Clean Water and Sanitation) and SDG 13 (Climate Action) by promoting climate-resilient and cost-effective approaches to water resource planning. In addition, the findings provide a reliable and economical method for groundwater exploration in semi-arid and data-scarce regions, offering practical insights for policymakers and planners involved in sustainable groundwater development and management.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102828"},"PeriodicalIF":5.0,"publicationDate":"2025-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221625","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":"Hydrogeological control of groundwater variations in the Congo River Basin revealed by GRACE water storage change decomposition","authors":"Benjamin M. Kitambo ,&nbsp;Sly Wongchuig ,&nbsp;Raphael M. Tshimanga ,&nbsp;Adrien Paris ,&nbsp;Alejandro Blazquez ,&nbsp;Daniel Moreira ,&nbsp;Frederic Frappart ,&nbsp;Ayan Santos Fleischmann ,&nbsp;Jean-Marie O. Kileshye ,&nbsp;Mohammad J. Tourian ,&nbsp;Fabrice Papa","doi":"10.1016/j.ejrh.2025.102810","DOIUrl":"10.1016/j.ejrh.2025.102810","url":null,"abstract":"<div><h3>Study region</h3><div>The Congo River Basin (CRB) holds significant groundwater (GW) resources that play a crucial role as the primary source of drinking water for CRB’s human population.</div></div><div><h3>Study focus</h3><div>Here, we provide the quantification of the temporal dynamics and, for the first time, the spatial distribution of monthly Groundwater Storage Anomaly (GWSA) in CRB from 2002 to 2015, through the decomposition of the Total Water Storage Anomaly (TWSA) measured by the Gravity Recovery and Climate Experiment (GRACE) mission. Observation based-surface water storage anomaly (SWSA) developed from multi-satellite missions was a game changer in providing reasonable GWSA seasonal dynamics.</div></div><div><h3>New hydrological insights</h3><div>The contributions of each hydrological reservoir, including SWSA, root-zone soil moisture, and GWSA, represent, respectively, ∼18 %, ∼59 %, and ∼23 % of the seasonal amplitude of TWSA (∼365 ± 105 km³), in line with previous model-based estimates. Additionally, at sub-basin scale, our study reveals that GWSA ranges between 42 % (for Ubangui and Kasaï) and 16 % (for Lower-Congo) of TWSA. The spatial distribution of GWSA confirms the expected hydrogeological behavior for each type of aquifer related to the four main hydrogeological formations encountered in CRB with high GWSA variability and high Base-Flow Index (BFI) in unconsolidated (BFI = 0.68) and consolidated (BFI = 0.67) sedimentary aquifers in contrast with lower GWSA variability and BFI in fracture flow (BFI = 0.14) and basement (BFI = 0.12) aquifers.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102810"},"PeriodicalIF":5.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221659","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":"High speed flash flood deduction and prevention method based on three-dimensional digital twin scene","authors":"Xinying Wang ,&nbsp;Hairun Shu ,&nbsp;Yi Liu ,&nbsp;Jun Guo ,&nbsp;Zhiqiang Jiang ,&nbsp;Yichao Xu ,&nbsp;Lixiang Song ,&nbsp;Yutao Cao","doi":"10.1016/j.ejrh.2025.102825","DOIUrl":"10.1016/j.ejrh.2025.102825","url":null,"abstract":"<div><h3>Study region</h3><div>Flash flood prone areas in Hubei, China (Datong, Zhangbang, and Shizi Town)</div></div><div><h3>Study focus</h3><div>This study focuses on the mountainous areas in Hubei Province that are severely affected by flash floods. Taking three of these areas as examples, a flood simulation method based on a three-dimensional digital twin scene is proposed. This method can dynamically display the flood inundation range, water level rise process, and inundation depth in three dimensions. On this basis, by constructing a digital flash flood simulation platform, flash flood disaster simulation based on a three-dimensional interactive scene is realized, and based on the simulation results, the danger zone and evacuation route are automatically identified.</div></div><div><h3>New hydrological insights for the region</h3><div>Through the flood deduction in the three-dimensional scene, the number of households in the dangerous area under different conditions in the three areas is determined to be 46,175 and 51, and a total of 9 temporary resettlement points are formulated, and a total of 9 evacuation routes are established. This paper innovatively combines three-dimensional flood real-time deduction with flood risk simulation in technical theory. This innovation provides strong support for flood control and disaster reduction, making it possible for flood simulation to preview and predict the flood prevention plan through three-dimensional interaction.</div></div>","PeriodicalId":48620,"journal":{"name":"Journal of Hydrology-Regional Studies","volume":"62 ","pages":"Article 102825"},"PeriodicalIF":5.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145221769","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}