What is the date of the plum blossom this year 2021
Out of Plum means the end of the rainy season.According to the calendar, the plum blossom time in 2021 is around July 10, but from a meteorological point of view, the climate changes in China’s vast territory are inconsistent, so the specific plum blossom time is different every year and each place.We can Based on the weather forecast.
What does chumei mean
chumei, also known as "broken plum", is the end date of the rainy season in the middle and lower reaches of the Yangtze River in early summer.During the Meiyu period, the Meiyu front system and the main rain belts obviously moved out of the middle and lower reaches of the Yangtze River.The rainy days in this area were less than 2 days in 5 days.If it increases, it will be called plum.The current Chinese almanac adopts the saying of the "Shenshu Jing", the first day after Xiaoshu, that is, the plum blossoms between July 8th and 19th.In some years, the plum season will be delayed.For example, from 1954 to August 2, the plum rain season lasts for 63 days.
Meteorologically determined plum entry and exit are different from those in the almanac.Meteorologically, the delineation of Meiyu, Meiyu and Meiyu periods is based on the background of the weather circulation situation in Dafan Network; the geographical distribution characteristics of the weather system, the geographical distribution of precipitation and the changes in meteorological elements.Because the evolution of the circulation situation is not consistent or the same every year, there are complex differences in the meteorological people, the date of the plum blossom and the plum period.When the Meiyu front area and its rain belts reach or form in the middle and lower reaches of the Yangtze River or the Jianghuai area, it is called entering the Meiyu period; when the rain belts stagnate or linger, it is called the Meiyu period; when the rain belts move northward and reach the Yellow River Basin relatively stably, the Jianghuai When the region is under the control of the subtropical high pressure in the western Pacific, the Meiyu in the Jianghuai region ends.That is, out of plum.
The time of plum blossom in 2021
The time of plum entry in 2021 is probably around June 7, and the plum blossom is around July 10, which belongs to the two solar terms of mango and small heat.The plum rain season is when the plums are ripe, so entering the plum can also be regarded as the first rain of the plum ripening time as the plum rain.Chumei is the last consecutive rainy season when the plum ripening period comes to an end, marking the end of the plum rainy season.Meteorologically, Meiyu refers to a period of rainy weather in the transition from early summer to midsummer.Enter the rainy season.The climate and season are different in different places, and the plum season is also different.You can’t guide production and life based on the incoming and outgoing plums on the calendar, but to listen to the plum rain forecast issued by the Meteorological Observatory.
June and July, on the 500mb map of the Northern Hemisphere, 125-140.The location of the ridge line of the western Pacific subtropical high pressure of E:23-24 in southern Zhejiang.N, northern Zhejiang at 24-25.C, and is stable for five or more consecutive days.Appears after the continuous rain:seven days or more in southern Zhejiang, and five or more days in northern Zhejiang without basically rain (excluding precipitation caused by the southern tropical system and local thermal thunderstorms).The average daily temperature is steady through 25.C or 25.C or above.The daily average temperature and air pressure time curves of a single station have a synchronous rise.If the subtropical high ridge has jumped north to 25.N, and stable for two hours, during this period of time there is still continuous rainy weather greater than or equal to 0.1 mm, then select the whole day with daily rainfall greater than or equal to 1.0 mm.
After the rainy season, 120---130.The ridge line of the subtropical high pressure between E jumped north to 26.N or its north, and the daily average temperature is ≥27.C, the maximum temperature is 330.C, and no rain for more than 6 consecutive days.The average annual plum blossom date is July 9.When the subtropical high ridge line jumps north to 26.North of N and stabilized for more than 3 days, the outer line of the subtropical high (588 dagpm) controlled Hankou for more than 2 days.The last province-wide precipitation process ended, and it was determined to be out of plum.
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