The reason for the high temperature in Beijing has been found.
1, global warming
In recent years, global warming has caused changes in atmospheric circulation, making the northern hemisphere hotter and hotter in summer. Beijing, as the central city of North China Plain, is more affected by this.
2. Subtropical high
Recently, the western Pacific subtropical high moved northward, and the humidity in Beijing became higher. The downward pressure of the air led to an increase in temperature, resulting in hot and humid weather. Subtropical high is the main weather system affecting southern China in summer, which can transport water vapor from the northwest Pacific to southern China and southern China, causing heavy rainfall.
But at the same time, it will also stop the cold air from going south, making the precipitation in the northern region less, and the weather is mainly sunny and hot with little rain.
3. Solar radiation
Affected by the short-wave radiation of the sun during the day, coupled with the dry air, the ground temperature will soon rise. After the summer solstice, Beijing has the longest sunshine time and the largest direct angle of the sun. The obvious high surface temperature is mainly caused by the strong solar radiation.
How to prevent heatstroke and cool down when high temperature strikes;
1, go out for sun protection
Try to avoid moving or staying in the hot sun or high temperature environment for a long time. Unless necessary, don't walk or engage in manual labor in the high temperature exposure for a long time after 10 in the morning and before 4 pm. If you have to go out, you should take sun protection measures, such as wearing light-colored loose clothes, wearing cool hats, sunglasses, umbrellas and sunscreen products. If you feel dizzy, choose a cool and ventilated place to rest as soon as possible and replenish water in time.
2. Indoor heatstroke prevention
Indoor ventilation can be maintained by sprinkling water on the ground, using electric fans and air conditioners to cool down, but the air conditioner temperature should not be too low. Old people should not stay at home in order to save electricity or get sick, which will lead to indoor heatstroke. Working and living in an air-conditioned environment, you should spare some time for outdoor activities and heat-resistant exercise every day.
Step 3 live a healthy life
Drink plenty of water, get enough sleep, and avoid direct blowing of air-conditioning electric fans when sleeping. There are heatstroke prevention and cooling drugs at home, and use them correctly according to the instructions.