Large-scale hydrodynamic modeling of the middle Yangtze River Basin with complex river–lake interactions

Lai, Xijun; Jiang, Jiahu; Liang, Qiuhua; Huang, Qun

doi:10.1016/j.jhydrol.2013.03.049

Cited by 104 publications

(61 citation statements)

References 36 publications

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“…Long et al (2015) [21] adopted a global hydrological model (PCR-GLOBWB) for simulating total water storage changes in the Yangtze River basin. Lai et al (2013) [22] developed a new Coupled Hydrodynamic Analysis Model aiming to simulate the water system in the middle reaches of the Yangtze River. Long et al (2015) adopted a global hydrological model to simulate water storage changes for the Yangtze River basin.…”

Section: Rainfall Discharge Modeling Over the Jinsha River Basinmentioning

confidence: 99%

Adaptation of Cascade Hydropower Station Scheduling on A Headwater Stream of the Yangtze River under Changing Climate Conditions

Zhai

Lin

Guo

et al. 2017

Water

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Abstract:Cascade hydropower stations are effective in water resource utilization, regional water allocation, and flood risk management. Under changing climate conditions, water resources would experience complex temporal and spatial changes, which may lead to various issues relating to flood control and water resource management, and challenge the existing optimal scheduling of cascade hydropower stations. It is thus important to conduct a study on cascade hydropower station scheduling under changing climate conditions. In this study, the Jinsha River rainfall-discharge statistical model is developed based on the statistical relationship between meteorological and runoff indicators. Validation results indicate that the developed model is capable of generating satisfactory simulation results and thus can be used for future Jinsha River runoff projection under climate change. Meanwhile, the Providing Regional Climates for Impacts Studies (PRECIS) is run to project future rainfall in the Jinsha River basin under two General Circulation Models (ECHAM5 and HadAM3P), two scenarios (A1B and B2), and four periods (1961-1990, 1991-2020, 2021-2050, and 2051-2099). The regional climate modeling data are analyzed and then fed into the Jinsha hydrological model to analyze the trends of future discharge at Xiangjiaba Hydro Station. Adaptive scheduling strategies for cascade hydropower stations are discussed based on the future inflow trend analysis and current flood scheduling mode. It is suggested that cascade hydropower stations could be operated at flood limited water level (FLWL) during 2021-2099. In addition, the impoundment of cascade hydropower stations should be properly delayed during the post-flood season in response to the possible occurrence of increased and extended inflow in wet seasons.

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Section: Rainfall Discharge Modeling Over the Jinsha River Basinmentioning

confidence: 99%

Adaptation of Cascade Hydropower Station Scheduling on A Headwater Stream of the Yangtze River under Changing Climate Conditions

Zhai

Lin

Guo

et al. 2017

Water

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“…Regional evapotranspiration estimates were extracted from the latest satellite products (MOD16) of the Moderate resolution Imaging Spectroradiometer (MODIS) (http://www.ntsg.umt.edu/project/mod16) for the lake region and the gauged basin in 2000-2010. In addition, the lake stage at Hukou is available for the case without the TGD for the period 2006-2010, which is the output of the CHAM-Yangtze model (Lai et al, 2013).…”

Section: Y Liu and G Wu: Hydroclimatological Influences On Droughtsmentioning

confidence: 99%

“…Water impoundments of the TGD incurred water level drops with an average estimate of 2 m at the outlet of Poyang Lake in mid-September to November for the period 2003-2008(Guo et al, 2012Zhang et al, 2012). Alternatively, Lai et al (2013) developed a hydrodynamic model for the middle Yangtze River region (CHAM-Yangtze), in which they coupled both Poyang Lake and the Yangtze River to account for the lake-river interactions explicitly. They demonstrated that the lake stage was more sensitive to the alternation in lake inflow compared to the same discharge modification in the Yangtze River (Lai et al, 2014a).…”

Section: Introductionmentioning

confidence: 99%

Hydroclimatological influences on recently increased droughts in China's largest freshwater lake

Liu

2016

Hydrol. Earth Syst. Sci.

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Abstract. Lake droughts are the consequence of climatic, hydrologic and anthropogenic influences. Quantification of droughts and estimation of the contributions from the individual factors are essential for understanding drought features and their causation structure. This is also important for policymakers to make effective adaption decisions, especially under changing climate. This study examines Poyang Lake, China's largest freshwater lake, which has been undergoing drastic hydrological alternation in the past decade. Standardized lake stage is used to identify and quantify the lake droughts, and hydroclimatic contributions are determined with a water budget analysis, in which absolute deficiency is defined in reference to normal hydrologic conditions. Our analyses demonstrate that in the past decade the lake droughts worsened in terms of duration, frequency, intensity and severity. Hydroclimatic contributions to each individual drought varied between droughts, and the overall contribution to the lake droughts in the past decade came from decreased inflow, increased outflow, and reduced precipitation and increased evapotranspiration in the lake region. The decreased inflow resulted mainly from reduced precipitation and less from increased evapotranspiration over the Poyang Lake basin. The increased outflow was attributable to the weakened blocking effects of the Yangtze River, which the Three Gorges Dam (TGD) established upstream. The TGD impoundments were not responsible for the increased number of drought events, but they may have intensified the droughts and changed the frequency of classified droughts. However, the TGD contribution is limited in comparison with hydroclimatic influences. Hence, the recently increased droughts were due to hydroclimatic effects, with a less important contribution from anthropogenic influences.

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“…Previous attempts to simulate the hydrodynamics of Poyang Lake have been limited. A coupled 1-D and 2-D model has been created to simulate the interaction between the Yangtze River and its linked lakes, including Poyang Lake [16]. However, the model is not concentrated on the hydrodynamics of Poyang Lake and the simulated current velocities were not calibrated and validated by field measurements.…”

Section: Introductionmentioning

confidence: 99%

Hydrodynamic and Inundation Modeling of China’s Largest Freshwater Lake Aided by Remote Sensing Data

Zhang

Feng

et al. 2015

Remote Sensing

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China's largest freshwater lake, Poyang Lake, is characterized by rapid changes in its inundation area and hydrodynamics, so in this study, a hydrodynamic model of Poyang Lake was established to simulate these long-term changes. Inundation information was extracted from Moderate Resolution Imaging Spectroradiometer (MODIS) remote sensing data and used to calibrate the wetting and drying parameter by assessing the accuracy of the simulated inundation area and its boundary. The bottom friction parameter was calibrated using current velocity measurements from Acoustic Doppler Current Profilers (ADCP). The results show the model is capable of predicting the inundation area dynamic through cross-validation with remotely sensed inundation data, and can reproduce the seasonal dynamics of the water level, and water discharge through a comparison with hydrological data. Based on the model results, the characteristics of the current velocities of the lake in the wet season and the dry season of the lake were explored, and the potential effect of the current dynamic on water quality patterns was discussed. The model is a OPEN ACCESSRemote Sens. 2015, 7 4859 promising basic tool for prediction and management of the water resource and water quality of Poyang Lake.

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Large-scale hydrodynamic modeling of the middle Yangtze River Basin with complex river–lake interactions

Cited by 104 publications

References 36 publications

Adaptation of Cascade Hydropower Station Scheduling on A Headwater Stream of the Yangtze River under Changing Climate Conditions

Adaptation of Cascade Hydropower Station Scheduling on A Headwater Stream of the Yangtze River under Changing Climate Conditions

Hydroclimatological influences on recently increased droughts in China's largest freshwater lake

Hydrodynamic and Inundation Modeling of China’s Largest Freshwater Lake Aided by Remote Sensing Data

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