Causes of Henan fever

It is because Henan is under the control of the mainland high-pressure ridge and the downward flow prevails. At this time, the air on the ground will be pressurized. Not only that, the air will be continuously compressed here, which will also lead to a rapid increase in energy. The whole surface is like a "pressure cooker", heated and pressurized.

In addition, under the control of the continental high-pressure ridge, the air will be relatively dry, the water will be difficult to condense into clouds, and the atmospheric permeability is very strong, so the sunlight can directly hit the ground, which makes the solar radiation directly hit the ground, and the radiation warming effect is strong, which makes the continuous high temperature weather appear in many places in Henan.