What is the Three Gorges Dam catchment and what factors influence water flow?
Answers
Answer:
As China's largest freshwater lake, Poyang Lake is essential to regional development and global ecological conservation, but its interaction with the Yangtze River complicates prediction of lake level changes. To evaluate potential impacts of lake inflow and the Yangtze River flow alterations caused by climate variability and human activities, a hydrodynamic model that considers river–lake interactions was adopted to compute the specific change of water level and surface area in Poyang Lake corresponding to given lake inflow and/or Yangtze river flow alterations under 3 groups of scenarios. Results indicated that both lake inflow and the Yangtze River flow alterations significantly impact the Poyang Lake level.
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Answer:
When the Three Gorges Dam was built, 39 trillion kilograms of water from the Yangtze River built up behind it to 175 meters above sea level. This altered the Earth's moment of inertia changed ever so slightly, causing the rotation to move more slowly