China will warm up Japan. Free Technical Library News

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China will warm up Japan

17.08.2001

One and only, however, a large hydroelectric power station being built in the PRC can change the climate of Japan.

The Three Gorges Power Plant, which is being built on the Yangtze, will have a dam 186 meters high and more than two kilometers long. Behind the dam, a reservoir with a volume of about 40 billion cubic meters is formed. In addition to generating electricity, water from the reservoir will be used to irrigate surrounding fields.

Now the Yangtze River carries up to 38 cubic meters of fresh water into the Yellow Sea every second. Being lighter than salty sea water, it is located on top, and a layer of desalinated water prevents warmer sea water from giving up its heat to the atmosphere.

Geophysicists' calculations show that if the inflow of fresh water into the sea decreases by only 10 percent, warm waters will rise to the surface and warm the air around the Japanese islands by several degrees. However, whether the calculations are correct can only be verified after construction is completed.

The power plant is expected to be completed by the end of this decade.

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