Why is Zhengzhou so hot this year?

The cause of high temperature is mainly influenced by warm and low pressure on the ground, which leads to sunny and hot weather and little rain in most parts of Henan. Coupled with the short-wave radiation of the sun during the day, the atmosphere is dry, which is conducive to the gradual rise of the ground temperature. At the same time, under the control of the high-altitude ridge, downward airflow prevails in Henan, forming a certain sinking and warming effect, which leads to high temperature weather under the joint action of radiation warming and sinking warming. From June 1 day to June 17, the average temperature in Henan Province was 2.7℃ higher than normal, which was the third highest since June 196 1 day. The average temperature is 3.4℃ higher than normal, which is the fourth highest since 1961. The average temperature is 4.9℃ higher than normal, the highest since 196 1. This round of hot weather in Henan has a long standby time, and the high temperature will continue to be online around June 22. For example, in Zhengzhou, high temperature will be seen every day for the next week, and there will be heat waves above 38℃ online for five consecutive days. At present, Zhengzhou is in the red warning of high temperature. During the day, the highest temperature in Zhengzhou's main urban area, airport area and Shangjie area will rise above 40℃. In addition, the high temperature in Luoyang, Shangqiu and Kaifeng will last for about 6 days. Prevention of high temperature air in Henan is a disastrous weather, and high temperature heat wave is often ignored by everyone. In fact, it caused as many deaths as tornadoes, floods, strong storms and other disasters in the world. It is recommended to master the following tips for heatstroke prevention and cooling: 1. When setting the air conditioning temperature, it is recommended that it should not be lower than 26℃, and open the window regularly for ventilation. When entering the air-conditioned room from the hot outdoor, you should dry your sweat in advance. 2. Change clothes in time after sweating, avoid taking a bath immediately after sweating, and don't take a bath with cold water. Appropriately increase lunch break to ensure sleep time. 3. Pay attention to avoid the noon time when traveling, replenish water in time, and prepare summer medicines such as Huoxiang Zhengqi Water and Fengyoujing.