A5031092849- Water resources management and optimization
- Hydrology and Watershed Management Studies
- Flood Risk Assessment and Management
- Water-Energy-Food Nexus Studies
- Water Systems and Optimization
- Transboundary Water Resource Management
- Hydrological Forecasting Using AI
- Hydrology and Drought Analysis
- Climate variability and models
- Reservoir Engineering and Simulation Methods
- Hydrology and Sediment Transport Processes
- Plant Water Relations and Carbon Dynamics
- Electric Power System Optimization
- Environmental and Agricultural Sciences
- Agricultural risk and resilience
- Environmental Changes in China
- Meteorological Phenomena and Simulations
- Hydropower, Displacement, Environmental Impact
- Fish Ecology and Management Studies
- Water Resources and Sustainability
- Groundwater flow and contamination studies
- Mathematical and Theoretical Epidemiology and Ecology Models
- Ocean Waves and Remote Sensing
- Tropical and Extratropical Cyclones Research
- Oceanographic and Atmospheric Processes
Tsinghua University
2016-2025
State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering
2010-2024
Hohai University
2015-2023
Guizhou Electric Power Design and Research Institute
2019
Inner Mongolia University
2016
University of Illinois Urbana-Champaign
2010-2011
Institute of Environment and Sustainable Development in Agriculture
2009
Institute of Hydrology of the Slovak Academy of Sciences
2004
Abstract Groundwater (GW) overexploitation is a critical issue in North China with large GW level declines resulting urban water scarcity, unsustainable agricultural production, and adverse ecological impacts. One approach to addressing depletion was transport from the humid south. However, impacts of diversion on remained largely unknown. Here, we show central South-to-North Water Diversion storage recovery Beijing within context climate variability other policies. diverted reduces...
Increased human water use combined with climate change have aggravated scarcity from the regional to global scales. However, lack of spatially detailed datasets limits our understanding historical trend and its key drivers. Here, we present a survey-based reconstruction China’s sectoral in 341 prefectures during 1965 2013. The data indicate that has doubled entire study period, yet widespread slowdown growth rates 10.66 km 3 ⋅y −2 before 1975 6.23 1992, further down 3.59 afterward. These...
Abstract Water resources management, in particular flood control, the Lancang‐Mekong River Basin (LMRB) faces two key challenges 21st century: climate change and dam construction. A large‐scale distributed Geomorphology‐Based Hydrological Model coupled with a simple reservoir regulation model (GBHM‐LMK‐SOP) is used to investigate relative effects of construction on characteristics LMRB. Results suggest an increase both magnitude frequency under change, which more severe upstream basin...
The writers propose a successive improved dynamic programming (SIDP) algorithm for hydropower reservoir operation based on an analysis of concavity, complementarity, and monotonicity problems. For single-period generation, storage release have diminishing marginal contributions to generation (i.e., concavity), there is also complementary effect between becomes more productive in accordance with increasing storage). multiple-period the complementarity influences concavity objective function...
The use of a streamflow forecast for real‐time reservoir operation is constrained by uncertainty (FU) and limited horizon (FH). effects the two factors are complicating since increasing FH usually provides more information decision making in longer time framework but with uncertainty, which offsets gain from FH. This paper illustrates existence an effective (EFH) given forecast, balances FU maximum making. With assumption concave objective function, monotonic relationship between current...
Abstract Electricity production by hydropower is negatively affected drought. To understand and quantify risks of less than normal streamflow for hydroelectricity (HP) at the global scale, we developed an HP model that simulates time series monthly worldwide thus enables analyzing impact drought on HP. The based a new database (GHD), containing 8,716 geo‐localized plant records, values computed hydrological WaterGAP with spatial resolution 0.5°. GHD includes 44 attributes covers 91.8%...
Short instrumental streamflow records in the South and East Tibetan Plateau (SETP) limit understanding of full range long-term variability streamflow, which could greatly impact freshwater resources for about one billion people downstream. Here we reconstruct eight centuries (1200-2012 C.E.) annual from Monsoon Asia Drought Atlas five headwater regions across SETP. We find two regional patterns, including northern (Yellow, Yangtze, Lancang-Mekong) southern (Nu-Salween Yarlung...
The Yellow River basin is a key food production centre of global importance facing rapidly growing water scarcity. Water availability for agriculture in the threatened by rapid growth demand industrial and urban water, need to flush sediment from river's lower reaches, environmental demands pollution. Climate change already evident with long-term declines river runoff, higher temperatures, increasing frequency intensity drought. Chinese government has exhausted most options improving supply....
This paper develops optimal hedging rules for reservoir flood control operation under hydrological uncertainty using hydroeconomic and mathematical analysis. The capacity to convey flows is sometimes a scarce resource. Hedging operations uses storage allocate the expected flood-safety margin (EFSM, i.e., gap between volume flood-conveyance capacity) optimally present future periods. Optimal flood-operation falls into three cases, namely, (1) large floods, all almost channel-conveyance are...
Key Points Modeling analysis of future hydrologic droughts over U.S. is provided Relative contributions from climate change and water managements are quantified Future drought will be alleviated by reservoirs but intensified local extraction
Abstract Reservoir operations may alter the characteristics of Flood Frequency Curve (FFC) and challenge basic assumption stationarity used in flood frequency analysis. This paper presents a combined data‐modeling analysis reservoir as nonlinear filter runoff routing that alters FFCs. A dimensionless Impact Index (RII), defined total upstream storage capacity normalized by annual streamflow volume, is to quantify regulation effects. Analyses are performed for 388 river stations contiguous...
Abstract This study unveils regional patterns of dominant streamflow generation mechanisms across the conterminous United States and identifies their climatic physiographic controls. Six signatures describing characteristics rainfall‐stormflow responses base flow response are extracted from continuous rainfall‐streamflow time series for 432 US catchments. These catchments classified into eight classes based on similarities six signatures, each class inferred magnitudes signatures. catchment...
Models play a pivotal role in advancing our understanding of Earth's physical nature and environmental systems, aiding their efficient planning management. The accuracy reliability these models heavily rely on data, which are generally partitioned into subsets for model development evaluation. Surprisingly, how this partitioning is done often not justified, even though it determines what we end up with, assess its performance decisions make based outputs. In study, shed light the paramount...
Abstract Urban hydrological monitoring is essential for analyzing urban hydrology and controlling storm floods. However, runoff in areas, including flood inundation depth, often inadequate. This inadequacy hampers the calibration of models limits their capacity early warning. To address this limitation, study established a method evaluating depth floods using image recognition deep learning. utilizes object model YOLOv4 to identify submerged objects images, such as legs pedestrians or...
The Brahmaputra River Basin. Basin (BRB) is the most environmentally fragile and politically unstable transboundary river basin in South Asia. Therefore, incorporating environmental sector into water-energy-food system analysis necessary to better serve water resource management BRB. Integrated resources can provide more perspectives for alleviating political tension promoting cooperation basin. This study proposes a modeling framework explore water-energy-food-environment (WEFE) nexus...
This paper discusses the optimality conditions for standard operation policy (SOP) and hedging rule (HR) a two‐stage reservoir problem using consistent theoretical framework. The effects of three typical constraints, i.e., mass balance, nonnegative release, storage constraints under both certain uncertain are analyzed. When all unbinding, HR results in optimal following marginal benefit (MB) principle (the MB is equal over current future stages. However, if any those binding, SOP solution,...
The management of large river basins, such as the Yellow River Basin (YRB) in China, is complicated by distributed, localized decision processes and mechanisms that coordinate local decisions manage basin-level issues. Since 1998, Conservancy Commission (YRCC) has launched Unified Water Flow Regulation (UWFR) a centralized controlling mechanism enforces an upper limit on water withdrawals (water use permits) for eight provinces located basin. implementation UWFR maintained prescribed minimum...