Junqiang Xia, Xianziyi Zhang, Mei-Rong Zhou, Yi-Fei Cheng, Zu-Hao Zhou, Zeng-Hui Wang, Zhan-Wei Wan, Roger A. Falconer (2026). Modeling Study on Enhancing Overall Sediment Transport Efficiency in a Reservoir‐River Coupled System of the Middle and Lower Yellow River. Water Resources Research.DOI
Jiaxiang Xu, Junqiang XIA, Meirong ZHOU, Zhao ZHENG, Cuixia CHEN (2026). Spatial and temporal evolution characteristics and mechanisms of flood level at identical discharges in the Lower Yellow River. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Junqiang Xia, Xianziyi Zhang, Yifei Cheng, Meirong Zhou, Shanshan Deng (2026). Variation of Movable Bed Roughness in the Lower Yellow River Owing to Upstream Damming. Water Resources Research.DOI
Xianziyi Zhang, Junqiang Xia, Yifei Cheng, Meirong Zhou, Zenghui Wang, Cuixia Chen (2026). Corrigendum to “An integrated model of water–sediment-energy simulation and its application in the Xiaolangdi reservoir” [J. Hydrol. 663(Part A) (2025) 134131. Journal of Hydrology.DOI
Junqiang Xia, Xianziyi Zhang, Yifei Cheng, Meirong Zhou, Zhanwei Wan, Xixi Lu (2026). Quantification of bank erosion volume and its contribution to sediment transport in the Lower Yellow River owing to upstream damming. International Journal of Sediment Research.DOI
Meirong Zhou, Jiaxiang Xu, Junqiang Xia, Jiaxin Wang, Shanshan Deng (2026). Dam-induced variations in grain and bedform resistances in the Middle Yangtze River. Geomorphology.DOI
Junqiang Xia, Yu Mao, Meirong Zhou, Shanshan Deng, Xi Shi (2026). Laboratory experiment on phosphorus adsorption characteristics of different-sized sediment particles in the Middle Yangtze River. International Journal of Sediment Research.DOI
Yueyao Zhou, Junqiang Xia, Shanshan Deng, Dongdong Jia, Lizhi Dong (2026). Role of Bank Protection in Channel Erosion in Alluvial Rivers. Journal of Hydraulic Engineering.DOI
Yunshuo Cheng, Dong Chen, Zhiwei Li, Alvise Finotello, Junqiang Xia, Peng Gao, Yao Yue, Yucong He, Xiwei Guo (2026). Scaling of River Meander Skewing and Fattening Modulated by Environmental Conditions. Journal of Geophysical Research Earth Surface.DOI
Ying Cao, Yifan Yang, Junqiang Xia, Ziwu Fan, Chen Xie (2026). Environmental DNA-informed modeling improves water diversion for cyanobacterial bloom mitigation in urban river-lake networks. Communications Sustainability.DOI
Meirong Zhou, Jiaxiang Xu, Junqiang Xia, Heng Zhu, Shanshan Deng, Koen Blanckaert (2026). Flow Processes in a Diffluence‐Confluence Unit on a Large‐Shallow River Under Different Discharges. Water Resources Research.DOI
Junqiang Xia, Heng Zhu, Meirong Zhou (2026). Dam-induced effects on downstream flood and low-water levels in large rivers: insights from the Middle Yangtze River. Journal of Hydraulic Research.DOI
Yuqin Cao, Junqiang Xia, Yifei Cheng, Jianguo Chen (2026). A new calculation method for dynamic adjustment of bed material gradation in a sand-bed river. CATENA.DOI
Lizhi Dong, Junqiang Xia, Shanshan Deng, Heng Zhu, Yueyao Zhou (2026). Bank erosion modeling in the Middle Yangtze River: New dynamic model vs. HEC-RAS. Geomorphology.DOI
Zhengmin Wu, Yifan Yang, Junqiang Xia, Zhonghou Xu, Dong Shao, Wentao Xu (2026). Re-thinking levee strategies for aggradation-driven flood risk in the Waiho River, New Zealand. Journal of Hydrology Regional Studies.DOI
Junqiang Xia, Xi Shi, Meirong Zhou, Shengqi Liu, Shanshan Deng (2025). Modeling the growth dynamics of Phragmites australis with flooding stress in the Middle Yangtze River. Ecological Modelling, Vol. 510.DOI
Xiaojie Wang, Junqiang Xia, Jiheng Feng, Boliang Dong (2025). Numerical modelling of the impact of drainage system clogging on urban flood processes. Journal Of Environmental Management, Vol. 388.DOI
Boliang Dong, Bensheng Huang, Chao Tan, Kairong Lin, Junqiang Xia, Xiaojie Wang, Yong Hu (2025). City-scale high-resolution flood nowcasting based on high-performance hydrodynamic modelling. International Journal Of Disaster Risk Reduction, Vol. 125.DOI
Xiaojie Wang, Junqiang Xia, Boliang Dong (2025). Spatiotemporal variation of flood disaster losses and future assessment in the middle and lower region of the Yangtze River. International Journal Of Disaster Risk Reduction, Vol. 116.DOI
Jiheng Feng, Junqiang Xia, Boliang Dong, Xiaojie Wang, Roger Alexander Falconer (2025). Experimental and numerical model studies on flood inundation and drainage processes in a generalized urban street. Advances in Water Resources.DOI
Meirong Zhou, Junqiang Xia, Xiangyang Ge, Cheng Yifei (2025). A novel method of reach-scale sediment transport capacity calculation and its application in the Lower Yellow River. Journal of Hydraulic Research.DOI
Boliang Dong, Bensheng Huang, Chao Tan, Junqiang Xia, Kairong Lin, Shuailing Gao, Yongxiang Hu (2025). Multi-GPU parallelization of shallow water modelling on unstructured meshes. Journal of Hydrology.DOI
Yifei Cheng, Junqiang Xia, Hongwei Fang, Meirong Zhou, Zuhao Zhou, Jun Feng Lu, Dongyang Li, Roger Alexander Falconer, Yuchuan Bai (2025). Modelling of Flood Risks to People’s Life and Property in the Lower Yellow River Under Different Floodplain Management Modes. Engineering.DOI
Meirong Zhou, Junqiang Xia, Shanshan DENG (2025). Morphological evolution of mid-channel bars in the Middle Yangtze River in response to upstream damming. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Shanshan Deng, Xixi Lu (2025). Reduced channel migration rates in a braided reach owing to upstream damming. Geomorphology.DOI
Heng Zhu, Junqiang Xia, Shanshan Deng, Meirong Zhou (2025). A conceptual model of bed deformation and bank erosion in the bifurcated reaches of the Middle Yangtze River. Geomorphology.DOI
Yuqin Cao, Junqiang Xia, Yifei Cheng, Jianguo Chen, Shanshan DENG (2025). Effects of altered flow‐sediment regime and bed material composition on the longitudinal transport efficiency of non‐uniform suspended load in a braided reach. Earth Surface Processes and Landforms.DOI
Zenghui Wang, Junqiang Xia, C.S. Yu, Yifei Cheng, Xianziyi Zhang (2025). A retrogressive erosion model with automatic adjustment for sediment entrainment dominated and mass failure dominated bed deformation. International Journal of Sediment Research.DOI
Linlin Li, Lei Yu, Junqiang Xia, Meirong Zhou, Shanshan DENG, Yao Xiao, Hang Li, LE Mao-hua (2025). Coupled effects of riverbed topography and entrainment probability on bedload transport in the Middle Yangtze River. Acta Geophysica.DOI
Xianziyi Zhang, Junqiang Xia, Yifei Cheng, Meirong Zhou, Zenghui Wang, Cuixia Chen (2025). An integrated model of water–sediment-energy simulation and its application in the Xiaolangdi reservoir. Journal of Hydrology.DOI
Yu Mao, Junqiang Xia, Meirong Zhou, Shanshan Deng, Xi Shi (2025). Mathematical modeling of the transport of nonuniform sediment and key nutrients in the Middle Yangtze River. Journal of Hydrology.DOI
Congcong Lao, Haifeng Cheng, Guangyun Zhang, Junqiang Xia, Pei Xin (2025). The Role of Bank Collapse and Root Mat on Marsh Edge Retreat. Journal of Geophysical Research Earth Surface.DOI
Juan Wang, Dongxian Kong, Junqiang Xia, Chiyuan Miao (2025). A semi-physical cross-basin water-sediment model for regulating the Yellow River Delta. Journal of Hydrology.DOI
Yuchen Liu, Junqiang Xia, Meirong Zhou, Yifei Cheng, Shanshan Deng, Chiyuan Miao (2025). Response of braiding intensity in a braided reach of the Lower Yellow River to upstream damming. Global and Planetary Change.DOI
Zheng Quan Xu, Junqiang Xia, Qijie Li, Jiheng Feng, Boliang Dong (2025). A formula for quantifying the overflow discharge capacity of street inlet in a surcharged urban drainage system. Journal of Hydrology.DOI
Chuannan Li, Changbo Jiang, Jie Chen, Man Yue Lam, Junqiang Xia, Reza Ahmadian (2025). An overview of flood evacuation planning: Models, methods, and future directions. Journal of Hydrology.DOI
Haixin Shang, Junqiang Xia, Chunhong Hu, Meirong Zhou, Shanshan Deng (2025). Quantification of backwater effect in Jingjiang Reach due to confluence with Dongting Lake using a machine learning model. Water Science and Engineering.DOI
Linlin Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Defu Liu, Hang Li, Yu Lei (2025). Modeling of sediment exchange process and channel evolution in the downstream reach below the Three Gorges Dam. CATENA.DOI
Jyr‐Ching Hu, Junqiang Xia, Shanshan Deng (2025). Analysis of planform migration characteristics and lag effects in meandering rivers using remote sensing image interpretation. Science China Earth Sciences.DOI
Anmeng Sha, Dongfeng Li, Des E. Walling, Yi Zhao, Shang Tian, Dong Chen, Shanshan Deng, Junqiang Xia, Jim Best (2025). Accelerated River Meander Migration on the Tibetan Plateau Caused by Permafrost Thaw. Geophysical Research Letters.DOI
Lu Gao, Xiangzhou Xu, Junqiang Xia (2024). Deciphering the role of riverbank collapse in the braided reach of the lower Yellow River: Helpful or harmful? Proceedings of the Indian Academy of Sciences, Earth and Planetary Sciences.DOI
Junqiang Xia, Yi-Fei Cheng, Mei-Rong Zhou, Xin Yu, Xiangzhou Xu, K. Blanckaert, Zhengbing Wang (2024). Relation between bank erosion and bed incision in the braided reach of the Lower Yellow River undergoing channel degradation. International Journal of Sediment Research.DOI
Lu Gao, Xiangzhou Xu, Ying Zhao, Yihang Li, P. Tarolli, A. Siyal, Junqiang Xia, Zhanbin Li (2024). Assessing riverbank collapse with lateral displacement of shoreline for ecologically friendly erosion-resistant solutions. Environmental Earth Sciences.DOI
Boliang Dong, Bensheng Huang, Chao Tan, Shuailing Gao, Junqiang Xia (2024). Comprehensive flood risk assessment of urban flooding based on the 1D/2D coupled hydrodynamic model.DOI
Yuqin Cao, Junqiang XIA, Meirong ZHOU, Yifei Cheng, Jianguo CHEN (2024). Effects of flood and non-flood flow and sediment regimes on the flood discharge capacity of different reaches in the Lower Yellow River. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Congcong Lao, Jian ZENG, Junqiang XIA, Pei Xin (2024). Evolution of tidal flats influenced by tidal bores and runoff in the Qiantang Estuary, China. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Haixin Shang, Chunhong HU, Junqiang XIA, Meirong ZHOU (2024). Effects of the incoming flow-sediment regime and the backwater effect caused by the Dongting Lake confluence on channel degradation in the Jingjiang reach. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Xiaojie WANG, Junqiang XIA, Qijie Li, Jingming HOU (2024). Study on the bidirectional coupling 1-D and 2-D model of urban flood based on different flow exchange modes. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Heng Zhu, Junqiang Xia, Shanshan Deng, Yueyao Zhou (2024). A Probabilistic Process‐Based Model of Bank Erosion and Its Application in the Middle Yangtze River. Journal of Geophysical Research Earth Surface.DOI
Congcong Lao, Leihua Zhao, Jian Zeng, Junqiang Xia, Pei Xin (2024). Effects of low-tide rainfall on channel morphodynamics of tidal mudflats. Estuarine Coastal and Shelf Science.DOI
Shanshan Deng, Junqiang Xia, Qihang Sun, Heng Zhu, Yueyao Zhou (2024). Three-dimensional modeling of flow-sediment transport and large-scale bank erosion process in the Lower Yangtze River. Geomorphology.DOI
Boliang Dong, Junqiang Xia, Xiaojie Wang (2024). Comprehensive flood risk assessment in highly developed urban areas. Journal of Hydrology.DOI
Linlin Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Jie Li, Yao Xiao (2024). Numerical modeling of graded sediment transport with limited bed material supply – A case study in the Middle Yangtze River. Journal of Hydrology.DOI
Yu Mao, Junqiang Xia, Meirong Zhou, Shanshan Deng (2024). [Tempo-spatial Variations in Nitrogen and Phosphorus Loads in Jianli-Hankou Reach of the Middle Yangtze River During the Past 20 Years]. PubMed.DOI
Yucong He, Zhiwei Li, Junqiang Xia, Shanshan Deng, Yinjun Zhou (2024). Channel Morphological Characteristics and Morphodynamic Processes of Large Braided Rivers in Response to Climate‐Driven Water and Sediment Flux Change in the Qinghai‐Tibet Plateau. Water Resources Research.DOI
Xin Liu, Junqiang Xia, Shanshan Deng, Meirong Zhou, Koen Blanckaert (2024). Formation condition for concave-bank deposition in the meanders of the Middle Yangtze River and its application. International Journal of Sediment Research.DOI
Xiaojie Wang, Junqiang Xia, Boliang Dong, Qijie Li, Xiang Zhang (2024). Hydrodynamics-based assessment of flood losses in an urban district under changing environments. Natural Hazards.DOI
Shanshan Deng, Junqiang Xia, Yueyao Zhou, Meirong Zhou, Heng Zhu (2024). Prediction and early-warning of bank erosion in the Middle Yangtze River, China. CATENA.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Zenghui Wang (2024). Coupled two-dimensional model for heavily sediment-laden floods and channel deformation in a braided reach of the Lower Yellow River. Applied Mathematical Modelling.DOI
Hanyuan Yang, Yongjun Lu, Yongjun Lu, Liqin Zuo, Chengyang Zhou, Hong Yin, Yan Nan Lu, Yan Nan Lu, Tingjie Huang, Xianglong Wei, Bosheng Xue, Junqiang Xia, Zhiwei Li (2024). Erosion mechanism of point bar retreat under the protection of a flexible mattress. CATENA.DOI
Xi Shi, Junqiang Xia, Meirong Zhou, Shanshan Deng, Jian Sun (2024). Investigation into the long-term response of vegetation to dam operation in a large river using Landsat time-series data. Journal of Hydrology.DOI
Shanshan Deng, Junqiang Xia, Heng Zhu, Jie Liang, Huiwen Sun, Xin Liu (2024). Channel erosion and its impact on environmental flow of riparian habitat in the Middle Yangtze River. Environmental Science and Ecotechnology.DOI
Shanshan Deng, Junqiang Xia, Yijin Chen, Meirong Zhou, Yueyao Zhou, Zenghui Wang (2024). Integrated modelling of flow-sediment transport and power generation in the Three Gorges Reservoir. The Science of The Total Environment.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Shanshan Deng (2024). Improved formula of sediment transport capacity and its application in the lower Yellow River. Journal of Hydrology.DOI
Yunwen Pan, Junqiang Xia, Kejun Yang (2024). Impacts of stepped-falling base level on the flow motion and riverbed evolution in a sinuous channel. Journal of Hydrology.DOI
Qijie Li, Junqiang Xia, Boliang Dong, Yan Liu, Xiaojie Wang (2023). Risk assessment of individuals exposed to urban floods. International Journal Of Disaster Risk Reduction, Vol. 88.DOI
Junqiang XIA, Heng Zhu, Shanshan DENG, Meirong ZHOU (2023). Simulation and study of riparian groundwater exchange processes in the Shishou reach of the Middle Yangtze River. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Haixin Shang, Chunhong HU, Junqiang XIA, Meirong ZHOU (2023). Influence of Dongting Lake inflow on the degree and range of backwater effect in the Jingjiang reach. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Junqiang XIA, Xianziyi Zhang, Z P Wang, Meirong ZHOU, Shujian LOU (2023). Study and application of a coupled modelling of flow-sediment transport and hydropower generation in the Sanmenxia Reservoir. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Qihang SUN, Junqiang XIA, Shanshan DENG, Meirong ZHOU, Jinhua SI, Xingnong ZHANG (2023). Experimental study on flow structures in arc-shaped bank erosion zones. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Yueyao Zhou, Junqiang Xia, Shanshan Deng, Zhong Han (2023). Bank erosion under the impacts of hydraulic erosion, river stage change and revetment protection in the Middle Yangtze River. Geomorphology.DOI
Xin Liu, Junqiang Xia, Shanshan Deng, Meirong Zhou, Beiping Mao, Koen Blanckaert (2023). Hydrodynamic and Morphological Adaptation of Two Consecutive Sharp Bends of the Middle Yangtze River to Upstream Damming. Water Resources Research.DOI
Qijie Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Boliang Dong (2023). Risk assessment of metro tunnel evacuation in devastating urban flooding events. Tunnelling and Underground Space Technology.DOI
Jie Li, Junqiang Xia, Lingzhong Kong, Qingfeng Ji, Linlin Li, Fan Chen (2023). Geomorphic adjustments of channel bars in the braided reach of the lower Yellow river from 1986 to 2018. CATENA.DOI
Boliang Dong, Junqiang Xia, Qijie Li, Xiaojie Wang (2023). Fine‐scale damage assessment of urban flooding based on the 1D/2D coupled hydrodynamic model. River.DOI
Meirong Zhou, Junqiang Xia, Yuchen Liu, Shanshan Deng, Yu Mao (2023). Evolution characteristics of mid‐channel bars with a typical high/low bank structure in the Middle Yangtze River. Earth Surface Processes and Landforms.DOI
Zhuoyuan Yang, Junqiang Xia, Shanshan Deng, Meirong Zhou, Zuwen Ji, Xin Yu (2023). An Information Entropy-Based Methodology to Construct the Avulsion Threshold in the Tail Reach of the Estuarine Alluvial Plain. China Ocean Engineering.DOI
Meirong Zhou, Junqiang Xia, Yifei Cheng, Yu Mao (2023). Long-distance recovery of nonuniform suspended load in the Middle Yangtze River owing to upstream damming. Journal of Hydrology.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zenghui Wang, Jun Feng Lu (2023). Parameter sensitivity and uncertainty of a one-dimensional morphodynamic model in the Lower Yellow River. Journal of Hydrology.DOI
Zenghui Wang, Junqiang Xia, Meirong Zhou, Yifei Cheng, Tao Li (2023). A semi-analytical model for predicting outflow concentration of vented turbidity currents with application in the Xiaolangdi reservoir. Journal of Hydrology.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Jianguo Chen, Xiangyang Ge (2023). Variation in sediment delivery ratios of grouped sediment in a braided reach owing to channel adjustments. Environmental Fluid Mechanics.DOI
Meirong Zhou, Junqiang Xia, Shanshan Deng, Jian Shen, Yu Mao (2023). Modelling of phosphorus and nonuniform sediment transport in the Middle Yangtze River with the effects of channel erosion , tributary confluence and anthropogenic emission. Water Research.DOI
Junqiang Xia, Boliang Dong, Meirong Zhou, Qijie Li, Xiaolei Zhang (2023). A unified discharge capacity formula of clogged grate inlets. Urban Water Journal.DOI
Linlin Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zhiwei Li (2023). A new formula of recovery factor for non-equilibrium transport of graded suspended sediment in the Middle Yangtze River. Journal of Mountain Science.DOI
Boliang Dong, Junqiang Xia, Qijie Li, Meirong Zhou (2022). Risk assessment for people and vehicles in an extreme urban flood: Case study of the 7.20 flood event in Zhengzhou, China. International Journal Of Disaster Risk Reduction, Vol. 800.DOI
Qijie Li, Junqiang Xia, Zhihua Xie, Meirong Zhou, Shanshan Deng (2022). Hazard and vulnerability in urban inundated underground space: Hydrodynamic analysis of human instability for stairway evacuation. International Journal Of Disaster Risk Reduction, Vol. 70.DOI
Yifei Cheng, Junqiang XIA, Meirong ZHOU, Shanshan DENG (2022). Effects of grouped suspended sediment transport on channel evolution in the Lower Yellow River. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Xiaojie WANG, Junqiang XIA, Boliang Dong, Jingming HOU, Qijie Li (2022). Simulation of urban flood using the SWMM with the hierarchical catchment partition method. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Meirong Zhou, Junqiang Xia, Xi Shi, Shanshan Deng, Xingnong Zhang (2022). Hydrologic and geomorphic effects on the reduction of channel discharge capacity in the Middle Yangtze River. The Science of The Total Environment.DOI
Yunwen Pan, Junqiang Xia, Kejun Yang (2022). Statistical roughness properties of the gravel bed surfaces in a meandering channel. Journal of Hydrology.DOI
Junqiang Xia, Yifei Cheng, Meirong Zhou, Shanshan Deng, Xiaolei Zhang (2022). Experimental and numerical model studies of dike-break induced flood processes over a typical floodplain domain. Natural Hazards.DOI
Qihang Sun, Junqiang Xia, Shanshan Deng, Meirong Zhou (2022). A bank erosion risk evaluation procedure based on the analytic hierarchy process and entropy weight method. Arabian Journal of Geosciences.DOI
Yunwen Pan, Junqiang Xia, Tun Cai, Kejun Yang (2022). Effects exerted by average particle size and non-uniformity on bed surface fractal properties. Acta Geophysica.DOI
Xiaojie Wang, Junqiang Xia, Meirong Zhou, Shanshan Deng, Qijie Li (2022). Assessment of the joint impact of rainfall and river water level on urban flooding in Wuhan City, China. Journal of Hydrology.DOI
Meirong Zhou, Junqiang Xia, Shanshan Deng, Zhiwei Li (2022). Sediment transport capacity of low sediment-laden flows. Journal of Hydraulic Research.DOI
Zenghui Wang, Junqiang Xia, Tao Li, Meirong Zhou, Shanshan Deng (2022). Prediction of flow and sediment transport rates into closed-end channels for turbidity current intrusion. Journal of Hydrology.DOI
Qijie Li, Junqiang Xia, Boliang Dong, Meirong Zhou (2022). Near-field flow dynamics of grate inlets during urban floods. Physics of Fluids.DOI
Shanshan Deng, Junqiang Xia, Xin Liu, Meirong Zhou, Yu Mao, Quanxi Xu (2022). Contributions of different sources to sediment transport in the Middle Yangtze River under intensive channel degradation. CATENA.DOI
Shanshan Deng, Junqiang Xia, Meirong Zhou, Yueyao Zhou, Xin Liu, Zhiwei Li (2022). Riparian Groundwater Level Variation and Its Impacts on Bank Erosion in the Middle Yangtze River. Water Resources Research.DOI
Yingzhen Wang, Junqiang Xia, Shanshan Deng, Meirong Zhou, Zenghui Wang, Xiangzhou Xu (2022). Numerical simulation of bank erosion and accretion in a braided reach of the Lower Yellow river. CATENA.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Shanshan Deng, Dongyang Li, Zhiwei Li, Zhanwei Wan (2022). Recent variation in channel erosion efficiency of the Lower Yellow river with different channel patterns. Journal of Hydrology.DOI
Yunwen Pan, Junqiang Xia, Kejun Yang (2022). A Method for Digital Terrain Reconstruction Using Longitudinal Control Lines and Sparse Measured Cross Sections. Remote Sensing.DOI
Meirong Zhou, Junqiang Xia, Shanshan Deng, Zhiwei Li (2022). Two-dimensional modeling of channel evolution under the influence of large-scale river regulation works. International Journal of Sediment Research.DOI
Junqiang Xia, Boliang Dong, Meirong Zhou, Reza Ahmadian, Roger Alexander Falconer, Qijie Li, Xiaolei Zhang (2022). A unified formula for discharge capacity of street inlets for urban flood management. Journal of Hydrology.DOI
Boliang Dong, Junqiang Xia, Meirong Zhou, Qijie Li, Reza Ahmadian, Roger Alexander Falconer (2022). Integrated modeling of 2D urban surface and 1D sewer hydrodynamic processes and flood risk assessment of people and vehicles. The Science of The Total Environment.DOI
Giovanni Musolino, Reza Ahmadian, Junqiang Xia (2022). Enhancing pedestrian evacuation routes during flood events. Natural Hazards.DOI
Tao Li, Run-Liang Xia, Jun-Qiang Xia, Jun-Hua Zhang, Yan Yu, Dan Wu (2021). Deposition development in post-flood seasons between 1999-2015 at the entrance of typical tributaries of Xiaolangdi Reservoir, Yellow River*. Journal of Lake Sciences.DOI
Junqiang XIA, Xin LIU, Xiaolei ZHANG, Meirong ZHOU (2021). Variation characteristics and formula of movable bed roughness for the Lower Yellow River. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Qijie Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Hao Zhang, Zhihua Xie (2021). Physical modelling of energy losses at surcharged three-way junction manholes in drainage system. Water Science & Technology.DOI
Xin Liu, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zhiwei Li (2021). A new formula for predicting movable bed roughness coefficient in the Middle Yangtze River. Progress in Physical Geography Earth and Environment.DOI
Junqiang Xia, Qingrong Jiang, Shanshan Deng, Meirong Zhou, Yifei Cheng, Zhiwei Li, Zenghui Wang (2021). Morphological characteristics and evolution processes of sharp bends in the Lower Yellow River. CATENA.DOI
Yifei Cheng, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zhiwei Li (2021). Adjustment of flood discharge capacity with varying boundary conditions in a braided reach of the Lower Yellow River. Journal of Geographical Sciences.DOI
Qijie Li, Junqiang Xia, Kensuke Yokoi, Syazana Omar (2021). Boundary variation diminished conservative semi-Lagrangian method for both compressible and incompressible flows. Physics of Fluids.DOI
Shanshan Deng, Junqiang Xia, Meirong Zhou, Zhiwei Li, Guanglei Duan, Jian Shen, Koen Blanckaert (2021). Secondary Flow and Flow Redistribution in Two Sharp Bends on the Middle Yangtze River. Water Resources Research.DOI
Meirong Zhou, Junqiang Xia, Shanshan Deng, Zhiwei Li (2021). Adjustments in low-water channel geometry caused by upstream damming: an example from the Jingjiang Reach, China. Arabian Journal of Geosciences.DOI
Jingming Hou, Dong Yang, Bingyao Li, Ganggang Bai, Junqiang Xia, Zhaofeng Wang, Su Feng (2021). Approximate Method for Evaluating the Drainage Process of an Urban Pipe Network with Unavailable Data. Journal of Irrigation and Drainage Engineering.DOI
Na Wang, Jingming Hou, Ying’en Du, Haixiao Jing, Tian Wang, Junqiang Xia, Jiahui Gong, Miansong Huang (2021). A dynamic, convenient and accurate method for assessing the flood risk of people and vehicle. The Science of The Total Environment.DOI
Zhuoyuan Yang, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zenghui Wang, Zhiwei Li (2021). Variation in reach-averaged bankfull discharge in the Yellow River Estuary in recent years. Frontiers of Earth Science.DOI
Zhihua Xie, Thorsten Stoesser, Junqiang Xia (2021). Simulation of Three-Dimensional Free-Surface Dam-Break Flows over a Cuboid, Cylinder, and Sphere. Journal of Hydraulic Engineering.DOI
Xiaojie Wang, Junqiang Xia, Boliang Dong, Meirong Zhou, Shanshan Deng (2021). Spatiotemporal distribution of flood disasters in Asia and influencing factors in 1980–2019. Natural Hazards.DOI
Junqiang Xia, Yingzhen Wang, Meirong Zhou, Shanshan Deng, Zhiwei Li, Zenghui Wang (2021). Variations in Channel Centerline Migration Rate and Intensity of a Braided Reach in the Lower Yellow River. Remote Sensing.DOI
Bingyao Li, Jingming Hou, Donglai Li, Dong Yang, Hao Han, Xu Bi, Xinghua Wang, Reinhard Hinkelmann, Junqiang Xia (2021). Application of LiDAR UAV for High-Resolution Flood Modelling. Water Resources Management.DOI
Zhuoyuan Yang, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zhanwei Wan, Zhiwei Li (2021). One-dimensional morphodynamic model for a tail reach of the Yellow River estuary. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Zhiwei Li, Hanyuan Yang, Junqiang Xia, Meirong Zhou, Shanshan Deng, Yingzhen Wang (2021). Channel morphologic processes of a highly sinuous bend approaching neck cutoff by bank erosion in the middle Yangtze River. International Journal of Sediment Research.DOI
Chun-yan Deng, Junqiang Xia, Hua Ge, Rui Long (2020). Application of Mathematical Model in Water Conservancy Project at Confluence Section. IOP Conference Series Earth and Environmental Science.DOI
Junqiang XIA, Qian CHEN, Bailiang DONG, Xiaolei ZHANG (2020). Experimental study on the effect of clogging on the inlet discharge capacity. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Yifei Cheng, Junqiang XIA, Meirong ZHOU, Shanshan DENG (2020). Response of flood discharge capacity to the incoming flow and sediment regime and channel geometry in the braided reach of the Lower Yellow River. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Boliang Dong, Junqiang Xia, Meirong Zhou, Shanshan Deng, Reza Ahmadian, Roger Alexander Falconer (2020). Experimental and numerical model studies on flash flood inundation processes over a typical urban street. Advances in Water Resources.DOI
Zenghui Wang, Junqiang Xia, Meirong Zhou, Shanshan Deng, Tao Li (2020). One-dimensional morphodynamic model for retrogressive erosion based on a sediment entrainment theory at high flow velocity. International Journal of Sediment Research.DOI
Jie Li, Junqiang Xia, Qingfeng Ji (2020). Rapid and long-distance channel incision in the Lower Yellow River owing to upstream damming. CATENA.DOI
Jie Li, Junqiang Xia (2020). Modelling of hyperconcentrated flood routing and channel evolution in the lower Weihe River. Arabian Journal of Geosciences.DOI
Guanghai Gao, Junqiang Xia, Roger Alexander Falconer, Yingying Wang (2020). Modelling Study of Transport Time Scales for a Hyper-Tidal Estuary. Water.DOI
Zhiyong Feng, Guangming Tan, Junqiang Xia, Caiwen Shu, Peng Chen, Menwu Wu, Xiaoming Wu (2020). Dynamics of mangrove forests in Shenzhen Bay in response to natural and anthropogenic factors from 1988 to 2017. Journal of Hydrology.DOI
Donglai Li, Jingming Hou, Junqiang Xia, Tong Yu, Dong Yang, Dawei Zhang, Xujun Gao (2020). An Efficient Method for Approximately Simulating Drainage Capability for Urban Flood. Frontiers in Earth Science.DOI
Giovanni Musolino, Reza Ahmadian, Junqiang Xia, Roger Alexander Falconer (2020). Mapping the danger to life in flash flood events adopting a mechanics based methodology and planning evacuation routes. Journal of Flood Risk Management.DOI
Zenghui Wang, Junqiang Xia, Meirong Zhou, Shanshan Deng, Tao Li (2020). Modelling hyperconcentrated floods in the Middle Yellow River using an improved river network model. CATENA.DOI
Jingming Hou, Yongde Kang, Chunhong Hu, Yu Tong, Baozhu Pan, Junqiang Xia (2020). A GPU-based numerical model coupling hydrodynamical and morphological processes. International Journal of Sediment Research.DOI
Linlin Li, Junqiang Xia, Meirong Zhou, Shanshan Deng (2020). Riverbed armoring and sediment exchange process in a sand–gravel bed reach after the Three Gorges Project operation. Acta Geophysica.DOI
Chunyan Deng, Junqiang Xia, Rui Long, Yuan yuan (2019). Influence of parameters valuing on calculation results in reservoir sediment mathematical model. Proceedings of IAECST-International Conference on Architecture,Civil and Hydraulic Engineering(ACHE 2019).DOI
Jingming Hou, Bingyao Li, Tong Yu, Liping Ma, JE Ball, Hui Luo, Qiuhua Liang, Junqiang Xia (2019). Cause analysis for a new type of devastating flash flood. Hydrology research.DOI
Zhiyong Feng, Guangming Tan, Junqiang Xia, Caiwen Shu, Peng Chen, Ran Yi (2019). Two-dimensional numerical simulation of sediment transport using improved critical shear stress methods. International Journal of Sediment Research.DOI
Chun-yan Deng, Junqiang Xia, Yuan Yuan, Wang Min (2019). Modeling of the Effects of Secondary Flow on Bank Failure in a Curved Channel. IOP Conference Series Earth and Environmental Science.DOI
Xiaojuan Li, Junqiang Xia, Jie Li, Meirong Zhou (2019). Adjustments in reach-scale bankfull geometry of a braided reach undergoing contrasting channel evolution processes. Arabian Journal of Geosciences.DOI
Shanshan Deng, Junqiang Xia, Meirong Zhou (2019). Coupled two-dimensional modeling of bed evolution and bank erosion in the Upper JingJiang Reach of Middle Yangtze River. Geomorphology.DOI
Meirong Zhou, Junqiang Xia, Shanshan Deng (2019). One-dimensional modelling of channel evolution in an alluvial river with the effect of large-scale regulation engineering. Journal of Hydrology.DOI
Fenfen Lin, Junqiang Xia, Meirong Zhou, Shanshan Deng (2019). Morphodynamic evolution in a meandering reach of the Middle Yangtze River under upstream and downstream controls. Progress in Physical Geography Earth and Environment.DOI
Zhiyong Feng, Guangming Tan, Junqiang Xia (2019). Sediment Transport Capacity Under the River–Tide Interaction in the Changjiang Estuary. China Ocean Engineering.DOI
Zhiyong Feng, Guangming Tan, Junqiang Xia (2019). Sediment transport capacity under the river-tide interaction in the Changjiang Estuary. EGU General Assembly Conference Abstracts.
Zenghui Wang, Junqiang Xia, Meirong Zhou, Tao Li (2019). Numerical Modeling of Hyperconcentrated Confluent Floods From the Middle Yellow and Lower Weihe Rivers. Water Resources Research.DOI
Shanshan Deng, Junqiang Xia, Meirong Zhou, Fenfen Lin (2018). Coupled modeling of bed deformation and bank erosion in the Jingjiang Reach of the middle Yangtze River. Journal of Hydrology.DOI
Junqiang Xia, Peng Guo, Meirong Zhou, Roger Alexander Falconer, Zenghui Wang, Qian Chen (2018). Modelling of flood risks to people and property in a flood diversion zone. Journal of Zhejiang University. Science A.DOI
Peng Guo, Junqiang Xia, Meirong Zhou, Roger Alexander Falconer, Qian Chen, Xiaolei Zhang (2018). Selection of optimal escape routes in a flood-prone area based on 2D hydrodynamic modelling. Journal of Hydroinformatics.DOI
Meirong Zhou, Junqiang Xia, Shanshan Deng, Jinyou Lu, Fenfen Lin (2018). Channel adjustments in a gravel-sand bed reach owing to upstream damming. Global and Planetary Change.DOI
Xiong Zhengwei, Junqiang Xia, Zenghui Wang, Tao LI, Junhua Zhang (2018). Whole-processes modeling of flow movement and sediment transport during the period of water-sediment regulation in Xiaolangdi Reservoir. Scientia Sinica Technologica.DOI
Jinyou Lu, Yinjun Zhou, Yonghui Zhu, Junqiang Xia, Wei Li (2018). Improved formulae of velocity distributions along the vertical and transverse directions in natural rivers with the sidewall effect. Environmental Fluid Mechanics.DOI
Qian Chen, Junqiang Xia, Roger Alexander Falconer, P. Guo (2018). Further improvement in a criterion for human stability in floodwaters. Journal of Flood Risk Management.DOI
Shanshan Deng, Junqiang Xia, Meirong Zhou, Jie Li, Yonghui Zhu (2018). Coupled modeling of bank retreat processes in the Upper Jingjiang Reach, China. Earth Surface Processes and Landforms.DOI
Jie Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Zenghui Wang (2018). Channel geometry adjustments in response to hyperconcentrated floods in a braided reach of the Lower Yellow River. Progress in Physical Geography Earth and Environment.DOI
Junqiang Xia, Xiaolei Zhang, Zenghui Wang, Jie Li, Meirong Zhou (2018). Modelling of hyperconcentrated flood and channel evolution in a braided reach using a dynamically coupled one-dimensional approach. Journal of Hydrology.DOI
Shan Zheng, Shasha Han, Guangming Tan, Junqiang Xia, Baosheng Wu, Kairong Wang, Douglas Arthur Edmonds (2018). Morphological adjustment of the Qingshuigou channel on the Yellow River Delta and factors controlling its avulsion. CATENA.DOI
Tao Li, Junhua Zhang, Jun-Qiang Xia, Guo-Ming Gao, Zhihui Ren, Zhen-Feng Yan (2017). Experiments on critical judgment parameter of heavily silt-laden fluid mud.DOI
Peng Guo, Junqiang XIA, Qian CHEN, Na LI (2017). A mechanics-based model of flood risk assessment and its application in a flood diversion zone. DOAJ (DOAJ: Directory of Open Access Journals).DOI
LI Jie, Junqiang XIA, Shanshan DENG, Meirong ZHOU, Shiyuan ZHANG (2017). Characteristics of channel thalweg migration in the lower Yellow River over the past 30 years. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Junqiang XIA, Fenfen Lin, Meirong ZHOU, Shanshan DENG, Peng Yuming (2017). Bank retreat processes and characteristics in the Jingjiang Reach after the Three Gorges Project operation. DOAJ (DOAJ: Directory of Open Access Journals).DOI
Junqiang Xia, Jie Li, Paul Anthony Carling, Meirong Zhou, Xiaolei Zhang (2017). Dynamic adjustments in bankfull width of a braided reach. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Quanli Zong, Junqiang Xia, Meirong Zhou, Shanshan Deng, Yi Zhang (2017). Modelling of the retreat process of composite riverbank in the Jingjiang Reach using the improved BSTEM. Hydrological Processes.DOI
Jie Li, Junqiang Xia, Meirong Zhou, Shanshan Deng, Xiaolei Zhang (2017). Variation in reach‐scale thalweg‐migration intensity in a braided reach of the lower Yellow River in 1986–2015. Earth Surface Processes and Landforms.DOI
Meirong Zhou, Junqiang Xia, Jinyou Lu, Shanshan Deng, Fenfen Lin (2017). Morphological adjustments in a meandering reach of the middle Yangtze River caused by severe human activities. Geomorphology.DOI
Junqiang Xia, Meirong Zhou, Fenfen Lin, Shanshan Deng, Jinyou Lu (2017). Variation in reach-scale bankfull discharge of the Jingjiang Reach undergoing upstream and downstream boundary controls. Journal of Hydrology.DOI
Zenghui Wang, Junqiang Xia, Shanshan Deng, Junhua Zhang, Tao Li (2016). One-dimensional morphodynamic model coupling open-channel flow and turbidity current in reservoir. Journal of Hydrology and Hydromechanics.DOI
Zenghui Wang, Junqiang Xia, Tao Li, Shanshan Deng, Junhua Zhang (2016). An integrated model coupling open-channel flow, turbidity current and flow exchanges between main river and tributaries in Xiaolangdi Reservoir, China. Journal of Hydrology.DOI
Junqiang Xia, Shanshan Deng, Meirong Zhou, Jinyou Lu, Quanxi Xu (2016). Geomorphic response of the Jingjiang Reach to the Three Gorges Project operation. Earth Surface Processes and Landforms.DOI
Junqiang Xia, Tao Li, Zenghui Wang, Junhua Zhang, Shanshan Deng (2016). Improved criterion for plunge of reservoir turbidity currents. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Junqiang Xia, Shanshan Deng, Jinyou Lu, Quanxi Xu, Quanli Zong, Guangming Tan (2016). Dynamic channel adjustments in the Jingjiang Reach of the Middle Yangtze River. Scientific Reports.DOI
Xiaofeng Zhang, Wenting Yang, Junqiang Xia (2016). Bed shear stress in non-uniform flow. Environmental Fluid Mechanics.DOI
Junqiang Xia, Fang Yenn Teo, Roger Alexander Falconer, Qian Chen, Shanshan Deng (2016). Hydrodynamic experiments on the impacts of vehicle blockages at bridges. Journal of Flood Risk Management.DOI
Junqiang Xia, Qian Chen, Roger Alexander Falconer, Shanshan Deng, Peng Guo (2015). Stability criterion for people in floods for various slopes. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Junqiang Xia, Quanli Zong, Shanshan Deng, Quanxi Xu, Jinyou Lu (2014). Seasonal variations in composite riverbank stability in the Lower Jingjiang Reach, China. Journal of Hydrology.DOI
Junqiang Xia, Quanli Zong, Yi Zhang, Quanxi Xu, Xiaojuan Li (2014). Prediction of recent bank retreat processes at typical sections in the Jingjiang Reach. Science China Technological Sciences.DOI
Junqiang Xia, Tao Li, Xiaojuan Li, Xiaolei Zhang, Quanli Zong (2014). Daily Bank Erosion Rates in the Lower Yellow River Before and After Dam Construction. JAWRA Journal of the American Water Resources Association.DOI
Junqiang Xia, Xiaojuan Li, Tao Li, Xiaolei Zhang, Quanli Zong (2014). Response of reach-scale bankfull channel geometry to the altered flow and sediment regime in the lower Yellow River. Geomorphology.DOI
Junqiang Xia, Roger Alexander Falconer, Yejiang Wang, Xuanwei Xiao (2014). New criterion for the stability of a human body in floodwaters. Journal of Hydraulic Research.DOI
Dongfang Liang, Junqiang Xia, Roger Alexander Falconer, Jingxin Zhang (2013). On the Refinement of a Boundary-Fitted Shallow Water Model. Coastal Engineering Journal.DOI
Dongfang Liang, Junqiang Xia, Roger Alexander Falconer, Jingxin Zhang (2013). Study on Tidal Resonance in Severn Estuary and Bristol Channel. Coastal Engineering Journal.DOI
Junqiang Xia, Roger Alexander Falconer, Xuanwei Xiao, Yejiang Wang (2013). Criterion of vehicle stability in floodwaters based on theoretical and experimental studies. Natural Hazards.DOI
Junqiang Xia, Xiaojuan Li, Xiaolei Zhang, Tao Li (2013). Recent variation in reach‐scale bankfull discharge in the Lower Yellow River. Earth Surface Processes and Landforms.DOI
Junqiang Xia (2013). Numerical modeling of sedimentation process in Yantan Reservoir. Engineering Journal of Wuhan University.
Junqiang Xia, Binliang Lin, Roger Alexander Falconer, Yanping Wang (2012). Modelling of man-made flood routing in the lower Yellow River, China. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Fang Yenn Teo, Junqiang Xia, Roger Alexander Falconer, Binliang Lin (2012). Experimental studies on the interaction between vehicles and floodplain flows. International Journal of River Basin Management.DOI
Junqiang Xia, Roger Alexander Falconer, Binliang Lin, Guangming Tan (2012). Estimation of annual energy output from a tidal barrage using two different methods. Applied Energy.DOI
Junqiang Xia, Zheng Bing Wang, Yanping Wang, Xin Yu (2012). Comparison of Morphodynamic Models for the Lower Yellow River1. JAWRA Journal of the American Water Resources Association.DOI
夏军强，王光谦，谈广鸣（2011）. 动床条件下溃坝水流的二维水沙耦合模型. 《水利学报》.
Caiwen Shu, Junqiang Xia, Roger Alexander Falconer, Binliang Lin (2011). Incipient velocity for partially submerged vehicles in floodwaters. Journal of Hydraulic Research.DOI
Junqiang Xia, Roger Alexander Falconer, Binliang Lin, Guangming Tan (2011). Modelling flash flood risk in urban areas. Proceedings of the Institution of Civil Engineers - Water Management.DOI
Junqiang Xia, Roger Alexander Falconer, Binliang Lin, Guangming Tan (2011). Numerical assessment of flood hazard risk to people and vehicles in flash floods. Environmental Modelling & Software.DOI
李文文，吴保生，夏军强，邵景力（2010）. 黄河下游平滩流量影响因子相关分析. 《人民黄河》.
夏军强，王光谦，谈广鸣（2010）. 复杂边界及实际地形上溃坝洪水流动过程模拟. 《水科学进展》.
李文文，吴保生，夏军强，邵景力（2010）. 潼关高程与其影响因子的相关分析. 《人民黄河》.
Junqiang Xia, Fang Yenn Teo, Binliang Lin, Roger Alexander Falconer (2010). Formula of incipient velocity for flooded vehicles. Natural Hazards.DOI
Junqiang Xia, Roger Alexander Falconer, Binliang Lin, Guangming Tan (2010). Modelling flood routing on initially dry beds with the refined treatment of wetting and drying. International Journal of River Basin Management.DOI
Junqiang Xia, Roger Alexander Falconer, Binliang Lin (2010). Numerical Model Assessment of Tidal Stream Energy Resources in the Severn Estuary, UK. Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy.DOI
Junqiang Xia, Roger Alexander Falconer, Binliang Lin (2010). Hydrodynamic impact of a tidal barrage in the Severn Estuary, UK. Renewable Energy.DOI
Junqiang Xia, Baosheng Wu, Guangqian Wang, Yanping Wang (2009). Estimation of bankfull discharge in the Lower Yellow River using different approaches. Geomorphology.DOI
Meirong Zhou, Junqiang Xia, Jiaguo Qi, Xi Shi (2025). Response of Vegetation Dynamics to Hydrological and Topographic Changes in a Reach Downstream of a Dam, China. SSRN Electronic Journal.DOI
Yunshuo Cheng, Dong Chen, Zhiwei Li, Alvise Finotello, Junqiang Xia, Peng Gao, Yao Yue, Yucong He, Xiwei Guo (2025). Global Meander Complexities of Skewing and Fattening Encoded in Fundamental Planform Metrics.DOI
数据集
Heng Zhu, Junqiang Xia, Meirong Zhou (2026). Dataset for "A large-scale 2D hydrodynamic modelling reveals limited vegetation effects on flood levels in a regulated river". Zenodo (CERN European Organization for Nuclear Research).DOI
Zhiyong, Feng, Simon M. Mudd, Guangming Tan, Junqiang Xia, Caiwen, Shu, Guangyue, Zhang, Shiyou Gao, Menwu Wu, Xiaoming, Wu (2021). Will mangroves continue to expand? Predicting future ecogeomorphic evolution in an urbanized environment to natural and anthropogenic pressures. Zenodo (CERN European Organization for Nuclear Research).DOI