How many days are left until the White Dew solar term in 2017? What are the climatic characteristics of Bailu?

How many days are left until the White Dew solar term in 2017? What are the climatic characteristics of Bailu?
Introduction: Bailu is one of the 24 solar terms in our country. The arrival of Bailu indicates that the coolness of autumn is gradually coming. Different solar terms bring different climatic characteristics. So how many days are left until the White Dew solar term in 2017? What are the climatic characteristics of Bailu? Let’s follow the editor to find out. Every day has good and bad days, auspicious and inauspicious days. If you want to know more about the auspicious and inauspicious days in the seventh month of the lunar calendar, please stay tuned to the articles related to the seventh month of the lunar calendar carefully compiled for you by Mr. Shui Mo!
How many days are left until the White Dew solar term in 2017?
Thursday, September 7, 2017 (the 17th day of the seventh lunar month)
There are still 6 days until Bailu 2017!
What are the climatic characteristics of Bailu?
1. Autumn arrives in the Yangtze River Basin
Autumn is the best season of the year. The sun is bright and warm, the sky is as blue as the sea, the clouds are white and quiet, the breeze is refreshing, and the gentle wind brings the fragrance of flowers and fruits in the garden...
During the White Dew period, the cold air brought by the Mongolian High Pressure has a certain strength. Generally speaking, it is not very strong and mainly affects northern my country and the middle and lower reaches of the Yangtze River. In very rare cases, strong cold air can move south to northern South China. The north is under its control, with less precipitation, light clouds and breezes, and a temperature that is neither too cold nor too hot. It is the golden season of the year for autumn tourism.
2. Pay attention to prevent coldness as the daily temperature difference increases
As sunlight weakens and cold air cools the air, especially after an autumn rain, the minimum temperature drops significantly. The temperature difference between the daily maximum and minimum temperatures in various parts of my country is gradually increasing, which is what is usually referred to in meteorology as an increase in daily temperature range.
According to historical records: the average daily temperature difference in East China is 5-9℃, in Central and South China it is 7-12℃, in North China it is 10-15℃, and in Northwest and Northeast China it is even greater, reaching 18-20℃. Therefore, the temperature difference between day and night before and after Bailu is the second largest period after spring. There is a saying that goes: "On the night of White Dew and Autumnal Equinox, it gets cooler each night." The drop in temperature at night and in the early morning is often the cause of people catching cold and getting sick.
3. Pay attention to severe autumn drought and be vigilant against fire
If the summer drought in the middle and lower reaches of the Yangtze River and the summer drought in western China and southern China are not nourished by the autumn rain, consecutive summer and autumn droughts may occur. There is a proverb that says: "Spring drought is not considered a drought, but autumn drought is half as severe. Spring drought covers the barn, but autumn drought cuts off the crops."
In some areas in the north, such as Shaanxi, Shanxi, Gansu in the northwest, and North China, autumn precipitation is relatively low. If a serious autumn drought occurs, it will not only affect the autumn crop harvest, but also delay the sowing and seedling growth of autumn-sown crops, affecting the harvest next year.
In addition, with the autumn drought, especially in mountainous forest areas, the air is dry and the wind is strong, and the forest fire risk begins to enter its peak period in autumn.
4. The autumn tiger is still around and is exhausted
During the White Dew solar term, when the cold air moves south to the middle and lower reaches of the Yangtze River, the autumn tiger becomes a paper tiger, or in other words, the tiger returns to the mountains. However, when the continental cold high pressure changes, the temperature can rise again. However, the autumn heat is no longer as severe as before, but the clear and cool weather in the middle and lower reaches of the Yangtze River all year round - the Indian summer - will not return until October.
5. Continuous rain in autumn: Autumn rain in western China is typical
The folk proverb goes: "Rain falls on the white dew, and the road is slippery every day", which describes the continuous rainy weather at this time. It is in stark contrast to the clear and crisp autumn weather in the north. If the strong cold air moving south is evenly matched with the warm air, and both sides are struggling to advance or retreat, continuous rain is likely to occur. The more typical autumn rain is the autumn rain in western China.
In some years, there are continuous rains in the middle and lower reaches of the Yangtze River, the south of the Yangtze River, and parts of southern my country. It is important to note that during the continuous rains, whether the average daily temperature is likely to be ≤20℃ for three consecutive days, resulting in "Cold Dew Wind" weather that affects the yield of late rice.
6. Continue to pay attention to tropical storms (typhoons)
September is still one of the months with more tropical cyclone activities in the South China Sea and the western Pacific. Compared with summer typhoons, autumn typhoons are relatively strong. After September, the possibility of moving north after landing is significantly lower than in July and August.
If cold air "meets" a tropical weather system (typhoon) in the coastal provinces and regions of Jiangnan, Southeast my country and South China, it will not only easily form continuous precipitation, but if accompanied by extremely heavy rainstorms, it will often cause geological disasters such as floods, autumn waterlogging and mudslides.
7. Low temperature and cold wind in autumn
The invasion of cold air in autumn causes a significant drop in temperature and leads to low temperature damage that reduces rice production. In southern China, it mostly occurs around the "Cold Dew" solar term (October 8-9), hence the name "Cold Dew Wind".
The proverb says: "Cold Dew wind means empty warehouses." When late rice is heading and flowering, if strong cold air invades from the south, it is easy to suffer from low temperature damage. This causes the late rice in the south to have empty shells and shriveled grains, leading to a reduction in yield. The Cold Dew Wind that occurred in mid-to-late September 1997 was the largest, longest-lasting, most far-reaching and most harmful in the past 30 years.
"On the fifteenth day of August, Yanmen Pass opens, and the geese come with frost on their heads." Frost is caused by the invasion of cold air. The average daily temperature is above 0℃, and the surface temperature drops sharply to below 0℃. The water between crop cells freezes and continuously absorbs the water inside the cells, causing cell dehydration, leading to the withering or death of crops.
Summary: Through the above article, we know about [How many days are left until the White Dew solar term in 2017? What are the climatic characteristics of Bailu? 】I hope this analysis of the problem can help everyone!

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