Summer drought weather (where does summer drought weather appear in China)

Today, the editor will share with you the knowledge of the summer drought weather, which will also analyze and answer which area of China the summer drought weather appears in. If you can solve the problem you want to know, pay attention to this website.

The cause of summer drought in solar terms, the disastrous climate in monsoon region

With the arrival of the great summer heat in the 24 solar terms, people have entered the hottest period of the year. At this time, China's Yangtze River basin and Jiangnan area are prone to summer drought meteorological disasters, which have a great impact on agricultural production. So what is the reason for the summer drought? Let's get to know each other.

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The drought in dog days is called summer drought, which belongs to the disastrous climate in monsoon region. It probably appears between mid-July and mid-August. It mainly occurs in the Yangtze River basin and the south of the Yangtze River, especially in Hubei, Hunan, Jiangxi, Jiangsu, Anhui and other provinces. Summer drought has a great impact on agricultural production, as well as industrial and mining water, domestic water and shipping; It is also dry heat and water shortage that causes diseases and harms human and animal health.

So how is the summer drought formed? From mid-July to mid-August, at this time, the stationary front of Meiyu had moved to the middle and lower reaches of the Yellow River and northeast China in early July. The middle and lower reaches of the Yangtze River are controlled by subtropical high, forming anticyclone weather, which is dominated by undercurrent, with long sunshine, strong solar radiation, high temperature and strong evaporation. However, due to the single air mass, there is no big rain area except for thunderstorms in some areas, and dry and hot summer weather generally occurs, which is called "summer drought".

Summer drought is characterized by strong solar radiation, high temperature, low humidity and large evaporation and transpiration, which is generally more harmful to crops than spring drought. There is an agricultural proverb among the people, which says that there is no drought in spring, and the drought in summer is halved. At the same time, although it is sunny and rainy during the summer drought, due to the dense river network in the middle and lower reaches of the Yangtze River and eastern Sichuan, a large amount of water vapor evaporates, and the low-altitude humidity is still high, so the heat is not easy to dissipate. High temperature and humidity make it difficult for the human body to sweat and feel sultry.

Prevention and control measures of summer drought

1, relevant departments and units should do a good job in drought emergency and disaster relief according to their duties;

2. Governments at all levels and relevant departments start emergency water supply schemes such as remote water transfer, and adopt various means such as fetching water from outside, drilling deep wells and delivering water by car to ensure the life of urban and rural residents and drinking water for livestock;

3, limit or limit the supply of urban residents living water, reduce or stop agricultural irrigation water supply;

4. Non-productive high water consumption and service industry water consumption are prohibited, and industrial sewage discharge is suspended;

5, the meteorological department timely increase the intensity of artificial precipitation.

Brief introduction of dry weather in summer

Cause: Controlled by anticyclone, horizontal movement: 7 in the northern hemisphere diverges clockwise from the center to the periphery;

Vertical movement: sinking

Weather description: sunny, high temperature;

Region: the middle and lower reaches of the Yangtze River

Time: July and August

Causes of dry weather in summer

In early July, the middle and lower reaches of the Yangtze River were controlled by the subtropical high belt, forming an anticyclone weather, which was dominated by the underflow current, with strong solar radiation, high temperature and strong evaporation. Because the air mass is single, there is no big rain area except for thunderstorms in some areas, so there is a summer drought.

What is summer dry weather?

The drought in dog days is called summer drought, which belongs to the disastrous climate in monsoon region. It mainly occurs in the Yangtze River basin and the south of the Yangtze River, especially in Hubei, Hunan, Jiangxi, Jiangsu, Anhui and other provinces. Summer drought has a great impact on agricultural production, as well as industrial and mining water, domestic water and shipping; It is also dry heat and water shortage that causes diseases and harms human and animal health.