| 华北汛期降水月内时间尺度周期振荡的年代际变化分析 |
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| 引用本文： | 刘海文,丁一汇.华北汛期降水月内时间尺度周期振荡的年代际变化分析[J].大气科学,2011,35(1):157-167. |
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| 作者姓名： | 刘海文 丁一汇 |
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| 作者单位： | 1.成都信息工程学院高原大气与环境四川省重点实验室, 成都,610225;中国科学院大气物理研究所大气科学和地球流体力学数值模拟国家重点实验室, 北京,100029;成都信息工程学院大气科学学院, 成都,610225 |
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| 基金项目： | 国家自然科学基金资助项目40805026、 40975058， 成都信息工程学院科研基金资助KYTZ201012 |
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| 摘 要： | 利用中国740站逐日降水资料和NCEP/NCAR逐日再分析资料,使用小波分析等方法,对华北汛期降水的月内时间尺度周期振荡的年代际变化及其原因进行了分析.结果表明:由于西太平洋副热带高压和华北夏季风的月内时间尺度周期振荡存在显著的年代际变化,使得华北汛期降水在两个不同阶段,存在着显著不同的月内时间尺度的周期振荡.在华北汛...
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| 关 键 词： | 华北降水 月内尺度 年代际变化 |
Analysis on the Interdecadal Change of Submonthly Time Scales Oscillation of Precipitation over North China during Rainy Seasons and Its Cause |
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| Liu Haiwen and Ding Yihui.Analysis on the Interdecadal Change of Submonthly Time Scales Oscillation of Precipitation over North China during Rainy Seasons and Its Cause[J].Chinese Journal of Atmospheric Sciences,2011,35(1):157-167. |
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| Authors: | Liu Haiwen and Ding Yihui |
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| Institution: | 1.Plateau Atmospheric and Environmental Research Key Laboratory of Sichuan Province, Chengdu University of Information Technology, Chengdu,610225;State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute o2.National Climate Center, Beijing,100081 |
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| Abstract: | Based on the daily precipitation data from 740 stations in China and NCEP/NCAR reanalysis daily datasets,the interdecadal change of submonthly time scales oscillation of precipitation over North China during rainy seasons and its cause are analyzed by means of the wavelet analysis method.Some results are discovered as follows: There exists significantly different submonthly timescales oscillation for the rainfall over North China during rainy seasons in the two different interdecadal periods due to interdec... |
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| Keywords: | precipitation over North China submonthly time scales interdecadal change |
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