中国农业气象 ›› 2010, Vol. 31 ›› Issue (01): 5-10.

• 论文 • 上一篇    下一篇

近54年濮阳市降水变化特征及突变分析

王春玲;崔力;时凤云;吴建河;李树勇;徐巧真;郝同伟;王建英;许国庆;   

  1. 河南省濮阳市气象局;
  • 出版日期:2010-02-10 发布日期:2010-02-10

Analysis of Varying Characteristics and Abrupt Change of Precipitation in Recent 54 Years in Puyang City

WANG Chun-ling,CUI Li,SHI Feng-yun,WU Jian-he,LI Shu-yong,XU Qiao-zhen,HAO Tong-wei,WANG Jian-ying,XU Guo-qing(Meteorological Bureau of Puyang City,Puyang 457000,China)   

  • Online:2010-02-10 Published:2010-02-10

摘要: 采用线性趋势分析和t检验、滑动t检验方法对濮阳1954年12月-2008年11月的月、季、年降水资料进行综合分析。结果表明:濮阳年降水量总体呈减少趋势(-8.66mm/10a,|t|=1.5694t0.1/2=1.6684)。暴雨天气发生时间在逐渐提前。强降水日数的多、少与该年代降水量偏多、偏少的趋势相一致。

关键词: 降水变化特征, 突变, 气候变化倾向率

Abstract: Precipitation data in Puyang city from 1954 to 2008 was analyzed in months,seasons and years based on linear trend test,T-detected method,and slide T-detected method.The results showed that annual precipitation decreased(-8.66mm per 10 years,|t|=1.5694t0.1/2=1.6684),rainstorm occurred early than the past.The days of heavy rain were in accordance with the amount of precipitation.

Key words: Varying characteristics of precipitation, Abrupt change, Bias of climate change