江西农业学报Issue(11)：115-118,4.
东亚夏季风年代际变化的波能影响特征
Impact Features of Wave Energy Propagation on Interdecadal Variations in East Asian Summer Monsoon
摘要
Abstract
Based on NCEP reanalysis data , we analyzed the impacts of wave packet propagation on the interdecadal variations in the East Asian Summer Monsoon ( EASM) by using the method of wave packet propagation diagnosis .The results indicated that:when EASM expressed interdecadal variations , the propagation of wave packet also had a certain change .The wave packet propaga-tion was obvious at the lower level , and it became weak at the higher level .So we selected 850 hPa as the studied layer .Over the region of 20°N~50°N, 70°E~120°E, the great value of wave packet spread from 80°S to equator in 1980s and 1990s.During the strong EASM years , the great value of wave packet spread from the middle part of the North Pacific to the northern part of the Northeast Pacific .During the weak EASM years , it spread from the northern part of the Northeast Pacific to the central part of the North Pacific.Over the region of 30°S~25°N, 100°E~160°E, the great value of wave packet spread from 90°S to 30°S in 1990s, and from the East Pacific to the West Pacific .Over the region of 25°S~40°N, 0°~60°E, the great value of wave packet spread from the Atlantic to the Central Pacific , and spread from the East Pacific to the Central Pacific .关键词
东亚夏季风/年代际变化/波包传播/特征Key words
East Asian summer monsoon/Interdecadal variation/Wave packet propagation/Feature分类
天文与地球科学引用本文复制引用
于亚薇,杨世昌,孟振雄,周丽娜,赵宇涵,周春晓,辛清阳,唐帅,李明慧,井川..东亚夏季风年代际变化的波能影响特征[J].江西农业学报,2013,(11):115-118,4.基金项目
国家科技支撑计划“持续性异常气象事件预测业务技术研究”资助项目（2009BAC51B03）。 （）
