费亮,王玉清,薛宗元,吴天泉. 1993. 赤道东太平洋海温与长江下游地区降水异常的相关分析[J]. 气象学报, 51(4):442-447, doi:10.11676/qxxb1993.055
赤道东太平洋海温与长江下游地区降水异常的相关分析
THE CORRELATION ANALYSIS BETWEEN THE SEA TEMPERATURE ON THE EQUATORIAL EAST PACIFIC AND THE ANOMALOUS RAINFALL IN THE LOWER REACHES OF THE YANGTZE RIVER
投稿时间:1991-03-11  修订日期:1991-11-30
DOI:10.11676/qxxb1993.055
中文关键词:  赤道东太平洋海温  长江下游地区降水  相关分析
英文关键词:The sea temperature on the equatorial East Pacific  Rainfall in the lower reaches of the Yangtze River  Correlation analysis
基金项目:
作者单位
费亮 上海台风研究所, 200030 
王玉清 上海台风研究所, 200030 
薛宗元 上海台风研究所, 200030 
吴天泉 上海台风研究所, 200030 
摘要点击次数: 1888
全文下载次数: 2377
中文摘要:
      本文采用最大熵谱分析方法揭示了赤道东太平洋海温和长江下游地区降水均存在3-4年和准两年的周期性振荡特征。且通过时滞相关分析发现两者均存在显著的相关关系,并以降水滞后海温约4个月的正相关最为明显。在此基础上利用一个多级数字滤波器对两者的逐月距平序列进行了高通、低通和带通滤波,并对两者在不同时间尺度上的滤波分量进行时滞相关分析,结果发现只是在2-4年的时间尺度上两者相关最为密切,并以降水滞后海温4-5月的正相关最为显著。
英文摘要:
      This paper reveals that the periodic oscillation performs in 3-4 years and quasi-two years between the sea temperature on the equatorial East Pacific and the rainfall in the lower reaches of the Yangtze River,using maximal entropy spectral analysis method.Moreover,it is found that both mentioned above have the obvious correlation passing the time delay correlation analysis.It is most obvious that the sea temperature has the positive correlation with the rainfall delaying four-month.Furthermore,a multiple-stage numerical filter is used for the both departure sequence month by month to conduct high-pass,low-pass and band-pass filter.And it has conducted the time delay correlation analysis for the both at the different time scales.
HTML   查看全文   查看/发表评论  下载PDF阅读器
分享按钮