Weather of Yichang Three Gorges Dam

There is a cooling effect in summer and a warming effect in winter, but the effect is not great.

According to 20 16 Annual Climate Monitoring Report of the Three Gorges Region of the Yangtze River by the National Climate Center, the impact on the local temperature in the reservoir area is determined. There is a cooling effect in summer and a warming effect in winter, but the influence range is not more than 20 kilometers. The temperature in the Three Gorges reservoir area shows an upward trend before and after impoundment, but this trend is consistent with the global warming trend on a large scale.

In addition, the Three Gorges reservoir area is a long and narrow water body with an altitude of 1.75m, an average width of 1. 1km and a maximum water area of1.084km2.. A water body of this scale can hardly affect the climate circulation conditions in the southwest of an alpine canyon and the middle and lower reaches of the Yangtze River.

Because to change the weather and climate, it is necessary to change the average state of atmospheric circulation in a large scale and for a long time. Its horizontal scale is more than a few Qian Qian meters, and its vertical scale is more than several kilometers-dozens of kilometers.

Besides, there is westerly circulation around the earth, so the global weather system, we can't change the cold weather caused by the cold wave because of the Three Gorges Reservoir. Similarly, we can't expect the summer monsoon to bring too much precipitation to both sides of the Three Gorges. Our small reservoir can bring a little more precipitation in front of nature, and an increase of 0. 1℃ in winter is enough.

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The benefits of building the Three Gorges Dam include:

1 to solve the power shortage problem in China.

After the completion of the Three Gorges Dam, it can provide 654.38+000 billion kWh of power generation every year, which provides the impetus for the rapid economic growth of China. It provides lighting for countless families, otherwise, there will be power outages for three days and two days as before.

2. Excellent flood control capability.

After the completion of the Three Gorges Dam, the reservoir water level can be effectively regulated. When the downstream area needs water, the water flow can be increased. When there is a flood danger downstream, the downstream water flow in the reservoir area can be controlled.

3. Promote local economic development.

After the completion of the Three Gorges Dam, it has become a 5A-level scenic spot. Every year, a large number of tourists visit the Three Gorges Dam, creating many employment opportunities and increasing economic benefits.

People's Network-Three Gorges Reservoir Area has limited impact on the surrounding climate.