| 贵州玉屏四季气候季节的划分及特征分析 |
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| 作者姓名： | 吴丽华 杨明 李小兰 罗俊祎 何为 |
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| 作者单位： | 贵州省玉屏侗族自治县气象局,贵州省铜仁市气象局,贵州省玉屏侗族自治县气象局,贵州省玉屏侗族自治县气象局,贵州省玉屏侗族自治县气象局 |
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| 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《气候季节划分》(QX/T15—2012)方法,对玉屏县四季起始日期及长度进行分析。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;四季长度:春季79 d,夏季122 d,秋季67 d,冬季97 d。(2)56 a来玉屏县春季起始日期呈提前趋势,长度呈增加趋势,两者均在20世纪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、冬季长度减少主要为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,春季为23%,夏季为27%,秋季为32%,冬季为25%。(4)玉屏县春季开始后出现低于季节指标≥1候的概率达41%,表明玉屏县春季出现倒春寒天气的概率很大。(5)比较气象行标法与稳定通过法的四季起始日期及长度,气象行标法对玉屏县的四季划分更能满足于农业生产的需要。
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| 关 键 词： | 气候季节 四季特征 玉屏 |
| 收稿时间： | 2018/3/23 0:00:00 |
| 修稿时间： | 2018/8/24 0:00:00 |
The features analysis of divisions of seasons in Yuping of Guizhou |
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| Authors: | wulihu yangming lixiaolan luojunyi and hewei |
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| Institution: | Yuping Meteorological Station of Guizhou Province,Tongren Meteorology Bureau of Guizhou Province,Yuping Meteorological Station of Guizhou Province,Yuping Meteorological Station of Guizhou Province,Yuping Meteorological Station of Guizhou Province |
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| 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 |
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| Keywords: | climate season features analysis Yuping |
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