Influence of the Scheduling of the Three Gorges Reservoir on the Hydrodynamic Field in Xiangxi River

2013 ◽  
Vol 726-731 ◽  
pp. 3429-3433 ◽  
Author(s):  
Yu Jing Bie ◽  
Ding Guo Jiang ◽  
Meng Jun Tang ◽  
Feng Qin Kong ◽  
Yu Wang
Keyword(s):  
Water Level ◽  
Temperature Difference ◽  
Three Gorges Reservoir ◽  
Bottom Water ◽  
Vertical Mixing ◽  
Density Current ◽  
Three Gorges ◽  
The Three Gorges ◽  
Xiangxi Bay ◽  
Hydrodynamic Field

The characteristics of water temperature and hydrodynamic field in Xiangxi Bay of Three Gorges Reservoir are studied by numerical simulation method. The result shows that the lifting of water level wakened the density current intensity and the vertical mixing of water, and increased the temperature difference between the surface and bottom water. Simultaneously, the dropping of water level enhanced the density current intensity and the vertical mixing of water, and decreased the temperature difference between the surface and bottom water. The numerical modeling is a valid tool in the prediction of the hydrodynamic field in estuary, as a valuable tool in understanding the development and progression of density currents and the influence of scheduling on the hydrodynamic characteristics in the Xiangxi Bay of the Three Gorges Reservoir, therefore, this work could provide helpful supports for nutrient transportation and ecological environmental evaluation.

Effects of seasonal water-level fluctuation on soil pore structure in the Three Gorges Reservoir, China

2018 ◽  
Vol 15 (10) ◽  
pp. 2192-2206 ◽  
Author(s):  
Shu-juan Zhang ◽  
Qiang Tang ◽  
Yu-hai Bao ◽  
Xiu-bin He ◽  
Feng-xia Tian ◽  
...  
Keyword(s):  
Pore Structure ◽  
Water Level ◽  
Three Gorges Reservoir ◽  
Water Level Fluctuation ◽  
Level Fluctuation ◽  
Three Gorges ◽  
The Three Gorges Reservoir ◽  
The Three Gorges

scholarly journals Precipitation Changes in the Three Gorges Reservoir Area and the Relationship with Water Level Change

Sensors ◽  
2021 ◽  
Vol 21 (18) ◽  
pp. 6110
Author(s):  
Qin Li ◽  
Xiuguo Liu ◽  
Yulong Zhong ◽  
Mengmeng Wang ◽  
Manxing Shi
Keyword(s):  
Water Level ◽  
Three Gorges Reservoir ◽  
Precipitation Anomaly ◽  
Three Gorges Reservoir Area ◽  
Three Gorges ◽  
Reservoir Area ◽  
Precipitation Concentration ◽  
The Three Gorges ◽  
Before And After ◽  
Precipitation Changes

As the largest hydroelectric project worldwide, previous studies indicate that the Three Gorges Dam (TGD) affects the local climate because of the changes of hydrological cycle caused by the impounding and draining of the TGD. However, previous studies do not analyze the long-term precipitation changes before and after the impoundment, and the variation characteristics of local precipitation remain elusive. In this study, we use precipitation anomaly data derived from the CN05.1 precipitation dataset between 1988 and 2017 to trace the changes of precipitation before and after the construction of the TGD (i.e., 1988–2002 and 2003–2017), in the Three Gorges Reservoir Area (TGRA). Results showed that the annual and dry season precipitation anomaly in the TGRA presented an increasing trend, and the precipitation anomaly showed a slight decrease during the flood season. After the impoundment of TGD, the precipitation concentration degree in the TGRA decreased, indicating that the precipitation became increasingly uniform, and the precipitation concentration period insignificantly increased. A resonance phenomenon between the monthly average water level and precipitation anomaly occurred in the TGRA after 2011 and showed a positive correlation. Our findings revealed the change of local precipitation characteristics before and after the impoundment of TGD and showed strong evidence that this change had a close relationship with the water level.

Sign in / Sign up

Export Citation Format

Share Document