| 摘要: |
| 利用玉屏国家地面气象观测站1961-2016年逐日平均气温资料,采用中国气象行业标准《气候季节划分》(QX/T15-2012),对玉屏县四季起始日期及长度进行统计分析。结果表明：(1)玉屏县常年四季起始日期：入春3月5日,入夏5月23日,入秋9月22日,入冬11月28日；常年四季长度：春季79d,夏季122d,秋季67d,冬季97d。(2)56年来玉屏春季起始日期呈提前趋势,长度呈增加趋势,两者均在90年代前后出现了转折,但未发生气候突变；夏季起始日期及长度趋势变化不明显；秋季起始日期呈推后趋势,长度变化不明显；冬季起始日期变化不明显,长度呈减少趋势；春季长度增加、冬季长度减少主要是春季起始日期提前所致。(3)玉屏县四季起始日期的年际变幅大,起始日期比常年偏早(晚)连续2候以上的异常年份,春季达23%,夏季达27%,秋季达32%,冬季达25%。(4)四季开始后,出现低于季节指标时段≥1侯的年份较多,尤其是春季达41%,表明玉屏县春季升温不稳。(5)行标平均法与常年季节起始日期、长度基本一致。稳定通过法与常年比,起始日期春(夏)季偏晚,秋(冬)季偏早,季节长度春(夏)季偏少,秋季一致,冬季偏多。自定义法与常年比,起始日期春季偏晚,秋季偏早,夏(冬)季相同,季节长度分配趋势与常年一致。由此可以认为,气象行标法对玉屏县的四季划分是基本适用的。 |
| 关键词: 气候季节；四季特征；玉屏 |
| DOI： |
| 投稿时间：2018-03-23修订日期：2018-08-24 |
| 基金项目: |
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| The features analysis of divisions of seasons in Yuping of Guizhou |
| wulihua,yangming,lixiaolan,luojunyi,hewei |
| (Yuping Meteorological Station of Guizhou Province;Tongren Meteorology Bureau of Guizhou Province) |
| Abstract: |
| Based on the daily mean temperature data of Yuping National Terrestrial Weather Observatory from 1961-2016, the starting date and the length of four seasons in Yuping County were statistically analyzed by using the Chinese meteorological industry standard QX/T15-2012. The results show that:(1) Yuping county year of the four seasons starting date: spring March 5, summer May 23, autumn September 22, winter November 28; Seasonal length: spring 79d, summer 122d, autumn 67d, winter 97d. (2) In the past 56 years, the spring start date of Yuping has shown an earlier trend and the length has increased, both of which took turns around the 1990s, but did not produce a climatic mutation; The trend of summer beginning date and length was not obvious. The beginning date of autumn was pushed back, and the length change was not obvious. The beginning date of winter did not change significantly and the length decreased. The increase of spring length and decrease of winter length are mainly due to the early start of spring. (3) The starting date of four seasons in Yuping County varies greatly from year to year |
| Key words: climate season; features analysis;Yuping |
