主办单位:中国气象局沈阳大气环境研究所
国际刊号:ISSN 1673-503X
国内刊号:CN 21-1531/P

气象与环境学报 ›› 2017, Vol. 33 ›› Issue (2): 37-43.doi: 10.3969/j.issn.1673-503X.2017.02.005

• 论文 • 上一篇    下一篇

1960—2014年辽宁省汛期暴雨气候特征

吴琼1, 赵春雨1, 牛丹2, 晁华1, 张志恒3, 王大钧1, 徐方姝4   

  1. 1. 沈阳区域气候中心, 辽宁 沈阳 110166;
    2. 辽宁省气象信息中心, 辽宁 沈阳 110166;
    3. 辽宁省气象局, 辽宁 沈阳 110001;
    4. 辽宁省气象服务中心, 辽宁 沈阳 110166
  • 收稿日期:2015-11-16 修回日期:2016-07-04 出版日期:2017-04-30 发布日期:2017-04-30
  • 通讯作者: 赵春雨,E-mail:springrainscn@163.com。 E-mail:springrainscn@163.com
  • 作者简介:吴琼,男,1988年生,助理工程师,主要从事气候监测与评价研究,E-mail:675342760@qq.com。
  • 基金资助:
    辽宁省科技厅农业攻关项目“气象干旱中长期预测评估技术研究”(2015103038)和公益性行业(气象)科研专项“近百年全球陆地气候变化监测技术与应用”(GYHY201206012)共同资助。

Climate characteristics of flood season rainstorms from 1960 to 2014 in Liaoning province

WU Qiong1, ZHAO Chun-yu1, NIU Dan2, CHAO Hua1, ZHANG Zhi-heng3, WANG Da-jun1, XU Fang-shu4   

  1. 1. Shenyang Regional Climate Center, Shenyang 110166, China;
    2. Meteorological Information Center of Liaoning Province, Shenyang 110166, China;
    3. Liaoning Provincial Meteorological Service, Shenyang 110001, China;
    4. Meteorological Service Center of Liaoning Province, Shenyang 110166, China
  • Received:2015-11-16 Revised:2016-07-04 Online:2017-04-30 Published:2017-04-30

摘要: 利用1960—2014年辽宁省54个国家气象站逐日降水观测资料,对近55 a辽宁省汛期(6—9月)暴雨日数和暴雨强度的时空变化特征进行了分析。结果表明:1960—2014年辽宁省暴雨集中出现在汛期(6—9月),其中尤以7—8月暴雨出现最多,7—8月暴雨总量占年暴雨总量的72%。近55 a辽宁省汛期暴雨日数呈由东南部地区向西北部地区减少的分布,暴雨强度则自沿海地区向内陆地区减小;辽宁省汛期持续性暴雨主要为连续2 d的暴雨过程,暴雨发生次数不同区域差异较大。1960—2014年辽宁省汛期平均暴雨日数、暴雨强度和暴雨范围均无明显变化趋势,汛期暴雨日数和暴雨强度序列主要变化周期均为12 a,在20世纪90年代二者还存在显著的2 a变化周期。

关键词: 汛期, 暴雨, 周期

Abstract: Daily precipitation data at 54 national weather stations from 1960 to 2014 in Liaoning were used to analyze the temporal-spatial variation characteristics of the rainstorms and their intensities during the flood seasons (from June to September).The results show that most rainstorms appear in flood seasons based on data from 55 years,especially in July and August during which the number of rainstorms takes up 72% of the annual total.The number of rainstorm days decreases from the southeast to the northwest of Liaoning province and the rainstorm intensities decrease from coastal regions to inland regions.The lifetime for most rainstorms lasts about two days,and the number of occurring times at different regions is very different.The days,intensities and ranges of rainstorms vary little during the 55 years,with a 12-year variation period of rainstorm days and intensities and a 2-year significant period in 1990s.

Key words: Flood season, Rainstorm, Period

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