Last year’s cold wave was the largest in 10 years!Winter and spring temperatures were slightly higher in 2022

2022-06-12 0 By

Peninsula all media reporter Sun Guidong correspondent Li Deping Zhang Lu recently, Qingdao Meteorological Observatory released the climate impact assessment in 2021.In 2021, Qingdao has more precipitation, significantly higher temperature and less sunshine hours.Specifically, the city’s average precipitation of 826.3 mm, 24.4% more than the usual;The average temperature is 13.9℃, 1.1℃ higher than usual.The average sunshine duration is 2,196.5 hours, 238.2 hours less than usual.The extreme maximum temperature in the city was 35.5℃, which was on the level on June 19 and 21.Extreme minimum temperature -18.1℃, January 7, pingdu, Jiaozhou.During the year, the climate is mainly warm and wet, with large temperature fluctuations, obvious extremes and frequent cold waves.There is a typhoon periphery effect in summer and autumn, and there is autumn flood.The main climatic events include: Extreme minimum temperature in warm winter: the average temperature in the last winter (From December 2020 to February 2021) was 1.4℃, which was 1.3℃ higher than usual, which was an obvious warm winter.But the temperature fluctuates greatly in the season, cold in winter and warm in winter.Affected by the strong cold wave in early January, the average temperature in The city was -5.2℃, 4.0℃ lower than usual.The lowest temperature in the urban area on January 7 was -15.9℃, breaking the historical extreme value since 1961.After the middle of January, the temperature reversed, from 1.7℃ lower in the early period to 2.8℃ higher in the late period.In particular, the average temperature in February was 4.3℃, the second highest in the same period in history.In late February, the temperature rose rapidly, and the maximum temperature at multiple stations in Qingdao broke through the historical extreme value: on 20th, the level reached the historical extreme value of 23.4℃, and the urban area of Qingdao (17.5℃) and Laoshan (18.3℃) were the second highest in history.Jiaozhou (26.2 ° C), Pingdu (26.1 ° C), Jimo (25.6 ° C), Laixi (25.5 ° C) and Huangdao (23.4 ° C) all broke record highs on Sunday.The flatness broke the extreme value for two consecutive days.The average precipitation in autumn was 245.9 mm, nearly twice as much as that in the previous year (97.4% more).The average temperature of the city is 15.9℃, 1.1℃ higher than the usual.Especially from the middle of September to the early part of October, affected by the subtropical high pressure to the north, high temperature and high humidity weather occurred in the city. The average precipitation of the city was 154.2mm, 262.8% more than the annual average, among which the flatness was 196.6mm, which was the extreme value in the history of this station since 1961.In terms of temperature, the average temperature of the city was 21.9℃, which was 2.2℃ higher than the annual average. The average temperature of the city in late September was 22.1℃, which was the highest historical temperature since 1961.As a result, except for the northern inland areas, most parts of the city entered autumn late, exceeding the historical extreme value since 1971.Qingdao urban area and west Coast New District first fall in October (October 5).In addition, in late September to the middle of October for the city’s autumn harvest autumn planting time, continuous rainfall makes each district city in October 4-11 period, there were 5 ~ 8 days of continuous rain weather.As a result, farmland soil is too wet, mechanical access is difficult, summer corn harvest and winter wheat sowing are affected.Typhoon “Fireworks” peripheral impact: From July 29 to 30, no. 6 typhoon “fireworks” peripheral impact of the city, there was heavy rain to local heavy rain, the city’s average process precipitation of 42.8 mm, including 29 days of 52.5 mm, Laoshan 50.3 mm.From the regional stations, there was a heavy rainstorm in laoshan mountain area on The 29th: Laodong 109.8mm and Bejiushui 105.8mm.During the period, the city’s inland gusts of 8 ~ 10, Wangcun town 28.3 m/s (10);Coastal and offshore waters gusts of force 8 to 10, 24.9 m/s (force 10) toward Lian Dao.In addition to the typhoon rainstorm, there were 6 rainstorm events in the city from July to October, including 3 in August and 1 in other months.In particular, under the influence of vortex shear line at the edge of subtropical high on August 31, there was a regional rainstorm and a local rainstorm process in the city. The average precipitation of the city was 66.8 mm. Except for Huangdao, there was a rainstorm in the other 6 stations, among which laoshan 104.8 mm, reaching the magnitude of a rainstorm.In short, there were 7 rainstorm processes in This city in 2021, and 18 stations in total had rainstorm, among which 1 station was a heavy rainstorm.Most cold waves in recent 10 years: there were 7 cold waves in this city during the year, which was the year with the most cold waves in recent 10 years.One in January, March and October, and two in November and December.From January 6 to 7 in the beginning of the year, affected by strong cold air, the temperature drop in most parts of the city was 7 ~ 12℃, and the lowest temperature was below -14℃. On January 7, The lowest temperature in Jiaozhou Heping was -18.1℃, and the lowest temperature in Qingdao urban area was -15.9℃, breaking the lowest temperature extreme value in this station since 1961.It was the second lowest extreme temperature since 1899 (the first occurred on January 10, 1931, which was -16.9℃), and the lowest temperature in Huangdao was -17.3℃, which was the lowest temperature in this station since 1961.In 2021, the number of cold waves in the city is not only large, but also the earliest in the past 10 years.The first cold wave in the second half of the year occurred on October 16-17, which caused the northern Laixi, Pingdu and Jimo to enter the meteorological winter 10-15 days earlier. The autumn in Jimo is 20 days later, and 2021 will be the shortest autumn in history (22 days).In addition, a cold wave at the end of 2021 brought the first significant snowfall of the winter to most parts of the city.Affected by it, most areas of light snow, snow level.The rain and snow weather has certain impact on the operation of the city.Spring dust and hail: this year, there are three major dust weather processes in the city, respectively on March 16, March 28-29 and May 7.Among them, from the afternoon of March 28 to 29, due to the influence of Mongolian cyclone and cold air, most areas of the city had dust or sand blowing weather, and the AQI index once reached more than 500, which had a certain impact on people’s health, production and life.The number of sand dust days (floating dust and blowing sand) in Qingdao urban area reached 3 days this year, which is the longest number of sand dust days in recent 10 years (tied with 2013 and 2017).This year, the number of hail days in Qingdao was 3 stations, which appeared in Qingdao urban area on April 29, flatness on May 26 and Laixi at night on May 27.In addition, the number of snowfall days and fog days in Qingdao urban area in 2021 is 8 days and 41 days, 5.4 days and 12.5 days less than usual, respectively.Short-term climate trend forecast in winter and spring (From February to May) (1) Precipitation Is expected to average 110 ~ 150 mm in the city, slightly more than normal (perennial 122.9 mm).10 ~ 15 mm in February, slightly less in normal (perennial 14.5 mm);Precipitation in March is 20 ~ 25 mm, slightly more normal (perennial 16.7 mm);Precipitation in April is 30 ~ 40 mm, slightly more normal (perennial 33.4 mm);The precipitation in May is 50 ~ 60 mm, close to the usual (58.3 mm).(2) The average temperature of the city is expected to be 9.5 ~ 10.5℃, and the normal temperature is slightly higher (perennial 9.7℃).In February 0.5 ~ 1.5℃, the normal slightly lower (perennial 1.4℃);6.0 ~ 7.0℃ in March, slightly higher in normal (perennial 6.4℃);12.5 ~ 13.5℃ in April, slightly higher normal (perennial 12.6℃);May 18.0 ~ 19.0℃, normal slightly higher (perennial 18.4℃).Countermeasures and Suggestions (1) To prevent wind, cooling, snow and haze and other weather impacts, to ensure the safety of urban operation, transportation and residents’ lives.(2) strengthen wheat field winter management, do a good job of vegetable greenhouse heat preservation and reinforcement work.(3) To do a good job in winter and spring fire prevention and production safety work, to prevent the impact of spring may appear stage low temperature weather on agricultural production.Disclaimer: The copyright of this article belongs to the original author, if there is a source error or infringement of your legitimate rights and interests, you can contact us through email or wechat, we will deal with it in time.Email address: jpbl@jp.jiupainews.com;Wechat id: Jiupai6688 (Note to add and withdraw)