Traditional Culture Encyclopedia - Weather inquiry - Chongming Island is less affected by the cold wave?
Chongming Island is less affected by the cold wave?
Formation of cold wave
Located in the Arctic and Siberia at high latitudes, the ground receives little solar radiation due to the oblique sunlight all the year round. In winter, the temperature in the Arctic Ocean is often below -20℃, and the lowest can reach -70℃~-60℃. The monthly average temperature of 65438+ 10 is often lower than -40℃.
Low temperature greatly increases the density of the atmosphere, and the air shrinks and sinks continuously, which increases the air pressure, thus forming a strong, deep and broad cold and high-pressure air mass. When this cold and high-pressure force is enhanced to a certain extent, it will flood into the territory of China where the southeast air pressure is relatively low, forming a cold wave.
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