热带地理2011，Vol.31Issue(2)：178-181,198,5.
鄱阳湖流域降水变化及其与太阳黑子的关系
Relationship between Sunspot Activities and Precipitation Change over the Poyang Lake Basin
摘要
Abstract
Based on the precipitation raster data of the Poyang Lake Basin and relative data of sunspots from 1961-2000, the precipitation characteristics of the Basin was analyzed by moving average method, unary linear regression, and Mann-Kendall test method, etc. The possible links between precipitation change and sunspot activities were discussed with wavelet analysis. The results show that the precipitation of the Poyang Lake Basin was increasing during 1961-2000, and had a sudden change in 1996. The precipitation had a principal cycle of about 10 years, which was in accord with that of sunspot activities, and the correlation coefficient between their wavelet variances was 0.86. Before the sudden change in 1996, the precipitation in the rise period of sunspot was lower than that in the decrease period of sunspot. It is believed that the periodic change of precipitation in the Poyang Lake Basin has certain connection with sunspot activity.关键词
鄱阳湖流域/降水变化/太阳黑子/周期Key words
Poyang Lake/ precipitation change/ sunspot/ cycle分类
天文与地球科学引用本文复制引用
贾玉芳,申洪源,丁召静..鄱阳湖流域降水变化及其与太阳黑子的关系[J].热带地理,2011,31(2):178-181,198,5.基金项目
国家自然科学基金(41072138) （41072138）
山东省自然科学基金(ZR2010DM002) （ZR2010DM002）
