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

• 论文 • 上一篇    下一篇

1957~2000年沈阳地区气温和降水变化特征分析

张凯1;娄德君2;潘静1;王冀3;苗传海1   

  1. 1.辽宁省专业气象台 沈阳110016;2.齐齐哈尔市气象局 齐齐哈尔161006;3.南京信息工程大学资源环境与城乡规划系 南京210044
  • 收稿日期:2006-06-26 修回日期:2006-11-06 出版日期:2006-12-01 发布日期:2006-12-01

Characteristics of temperature and precipitation in Shenyang area from 1957 to 2000

ZHANG Kai LOU Dejun PAN Jing WANG Ji MIAO Chuanhai   

  1. 1.Liaoning Specialized Meteorological Observatory;Shenyang 110016;2.Qiqihaer MeteorologicalBureau;Qiqihaer 161006;3.Department of Geography;Nanjing University ofInformation Science and Technology;Nanjing 210044
  • Received:2006-06-26 Revised:2006-11-06 Online:2006-12-01 Published:2006-12-01

摘要:

利用1957~2000年沈阳地区逐日平均气温、降水量资料,采用线性趋势分析、Mann-Kendall突变检测法和Morlet小波变换等方法,分析了近44a来沈阳地区气温和降水变化的总体特征及趋势,并利用极端气温和降水指数探讨了其变化特征。结果表明:近44 a来沈阳地区气温呈显著的上升趋势,气温变化有较明显的突变特征,突变时间出现在1981~1982年;降水呈波动下降趋势,自20世纪80年代以来,极端降水事件的强度和频率均呈上升趋势。

关键词: 气温, 降水, 极端气温指数, 极端降水指数, 变化特征

Abstract: Based on mean daily temperature and precipitation data from 1957 to 2000 in Shenyang area,the general characteristics and trends of temperature and precipitation variations were analyzed with linear trend analysis,Mann-Kendall break detector and Morlet wavelet transform method.Furthermore,their variation characteristics were discussed with the extreme temperature index and the extreme precipitation index.The results indicated that temperature showed a significant upward trend in Shenyang area during recent 44 years.And temperature variation had obviously abrupt change.The time of abrupt change was from 1981 to 1982.Precipitation showed a fluctuant downtrend,while intensity and frequency of extreme precipitation events were increasing since 1980s.