基于小波变换的1～10TeV宇宙线气象效应研究  

Detection of Meteorological Effect of 1～10TeV Cosmic Ray Using Wavelets Transform

作　　者：刘珺[1] 周德文[1] 

机构地区：[1]郑州大学数学系,郑州450001

出　　处：《郑州大学学报（理学版）》2007年第1期75-78,共4页Journal of Zhengzhou University:Natural Science Edition

摘　　要：利用小波变换，结合折叠周期分析方法，对西藏羊八井宇宙线观测站Tibet ASγ阵列1997年11月～1998年6月的实验记录数据进行周期分析，验证了气象参量，包括观测面处大气压和室外温度的日变化和半日变化．关联分析表明：宇宙线流强的周期变化与气压和温度的周期变化显著相关．The technique of wavelet analysis and epoch folding methods is used to search for the superimposed periodic signals of 1-10 TeV cosmic ray in the data obtained with Tibet AS7 array from November 1997 to June 1998. Solar time semi-diurnal and diurnal variations of meteorological parameters, including the atmospheric pressure and the temperature outdoors are proved. The following correlation analysis shows that the obvious correlation exists between the periodic variations of trigger rate and record rate of the cosmic ray observation experiment and of the atmospheric pressure and the temperature outdoors.

关 键 词：宇宙线 气象效应 小波变换 关联分析 

分 类 号：O572.1[理学—粒子物理与原子核物理]