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

气象与环境学报 ›› 2014, Vol. 30 ›› Issue (5): 62-68.doi:

• 论文 • 上一篇    下一篇

洞庭湖区近百年气温序列构建及其变化特征

彭嘉栋1 廖玉芳1刘珺婷2 伍湘秦1   

  1. 1. 湖南省气候中心，湖南 长沙 410118；2. 永州市气象局，湖南 永州 425000
  • 出版日期:2014-11-01 发布日期:2014-11-01

Construction of temperature series in recent 100 years and its changes over Dongting Lake region

PENG Jia-dong1  LIAO Yu-fang1  LIU Jun-ting2  WU Xiang-qin1   

  1. 1.Hu’nan Climate Center, Changsha 410007, China; 2. Yongzhou Meteorological Service, Yongzhou 425000, China
  • Online:2014-11-01 Published:2014-11-01

PDF (PC)

555

被引次数

7

摘要：

采用统计方法并结合气象台站历史沿革信息，对1910—2010年洞庭湖区气温观测资料进行均一性检验和订正，并利用洞庭湖区周边气象台站资料对洞庭湖区1951年以前缺测的气温资料进行插补，构成完整的气温序列。基于洞庭湖区完整气温序列，构建洞庭湖区近百年气温序列并分析其变化特征。结果表明：1910—2010年洞庭湖区年平均气温呈显著上升趋势，其中冬季和春季平均气温上升幅度最大，秋季次之，夏季变化趋势不显著；气温变化存在明显的冷暖交替，冷暖期交替比中国地区更频繁；近百年洞庭湖区年和冬季、春季、秋季平均气温均存在一个显著增暖的突变点；小波分析表明，近百年洞庭湖区年和四季平均气温均经历了冷—暖—冷—暖4个阶段的交替。

关键词: 洞庭湖区, 气温序列构建, 小波分析

Abstract:

Temperature data series for each station in Dongting Lake region during 1910-2010 had been tested for their homogeneity, and the series were adjusted in terms of meteorological historical information by a statistical method. The missing data over the Dongting Lake region before 1951 were then interpolated using data from the surrounding meteorological stations in order to obtain the complete series. The revised temperature series over the Dongting Lake Region during 1910-2010 were built and its changes were analyzed. The results indicate that the annual mean temperature has a significant warming trend during 1910-2010, and it has a largest ascending amplitude in winter and spring, and then in autumn, while it has no significant change in summer. Temperature variation over Dongting Lake Region has several significant warm-cold alternations and it is more frequently in this study area than in whole China region. Annual and seasonal mean temperatures are warming abrupt changes in the recent 100 years, except summer temperature. The wavelet analysis suggests that the annual mean and four seasonal mean temperatures in recent 100 years have experienced two climatic shifts from cold to warm.

Key words: Dongting Lake region, Construction of temperature series, Wavelet analysis