A5020934433- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Hydrological Forecasting Using AI
- Groundwater flow and contamination studies
- Soil erosion and sediment transport
- Precipitation Measurement and Analysis
- Environmental and Agricultural Sciences
- Environmental Changes in China
- Hydrology and Drought Analysis
- Hydrology and Sediment Transport Processes
Changjiang Water Resources Commission
2022-2024
Ministry of Water Resources of the People's Republic of China
2022
Hohai University
2018-2021
Georgia Institute of Technology
2020
Flow forecasting is an essential topic for flood prevention and mitigation. This study utilizes a data-driven approach, the Long Short-Term Memory neural network (LSTM), to simulate rainfall–runoff relationships catchments with different climate conditions. The LSTM method presented was tested in three distinct zones China. recurrent (RNN) adopted comparison verify superiority of model terms time series prediction problems. results were also compared widely used process-based model,...
Free water storage capacity, an important characteristic of land surface related to runoff process, has a significant influence on generation and separation. It is thus necessary derive reasonable spatial distribution free capacity for rainfall-runoff simulation, especially in distributed modeling. In this paper, topographic index based approach proposed the derivation distribution. The index, which can be obtained from digital elevation model (DEM), are used establish functional...
To realize the estimation of rainfall retention capacity for small reservoirs considering spatial soil moisture, a model and its parameter schemes have been developed in this study. An iterative trial solution method potential moisture constructed was proposed efficient computation. The 32 pilot located ungauged basins Hunan province calculated starting from 21 August 2023. In addition, continuous calculation carried out 1 to 30 September 2023 using Heping reservoir. results show that...
River width is an essential physical variable for the simulation of rainfall-runoff processes using distributed hydrologic models. In this paper, a model river integrating effects upstream drainage area and terrain topography proposed derivation spatial variation medium-sized mountainous watersheds based on digital elevation (DEM). Tests three watersheds, including Daheba, Changhua, Yuqian, suggest that dominated by in terms slope near riverbed. Wider reaches are often located at flatter...
对于分布式水文模型而言，如何获得参数的空间分布是模型应用的重点和难点问题.本文将分水源参数中的敏感参数——自由水蓄水容量为研究对象.建立地形指数与自由水蓄水容量的函数关系，以此提取流域内的自由水蓄水容量空间分布.最后利用本方法提取了陕西省陈河流域的自由水蓄水容量空间分布，并将之作为栅格型新安江模型的参数进行洪水模拟演算.应用结果表明本文提出的方法得到了理想的模拟结果.该方法以物理规律为基础能较为准确地计算出流域内自由水蓄水容量的空间分布，为分布式模型的发展奠定了坚实的基础.;Obtaining the spatial distribution of free water storage capacity is a significant matter for distributed hydrological model.In this paper,the capacity,a parameter that has effect on simulation results model,was se-lected as research object.We have...
Distributed models, which can take into account the spatial inhomogeneity of basin subsurface characteristics and rainfall, have become a hot topic research. However, emphasis on building large sets hydrodynamic equations pursuit fine high-resolution calculation unit may heighten problems model scale parameterization. Based latest theory watershed discretization Xin'anjiang model, framework that simulating flood using based grid-computation nesting is proposed, makes full use distributed...
To systematically generalize the influence of gullies on floods, a distributed model named Improved Grid-Xinanjiang (GXAJ), and priori parameters estimation scheme based Global Digital Soil Mapping System (SoilGrids) are proposed. Within watershed divided into series orthogonal cells, shallow furrows trenches inside cells conceptualized as primary gullies, in which water movement is simulated by kinematic wave equation considering density, well-developed grooves between considered main where...