摘要
本文用欧洲中心客观分析资料,分析了冬半年青藏高原及其附近地区上空大气中的低频振荡。结果表明,15-25天振荡是冬半年最主要的振荡分量,还进一步分析了15-25天振荡的统计特征及其与大气环流的关系。
In this paper the low-frequency oscillation in the atmosphereover the Qinghai-Xizang Platean and its vicinity during the winter halfyear is analyzed by using the ECMWF objective analysis data. Studiesindicate that 15-25 day oscillation is the most significant component inthe winter half year. Further analysis is then made of the relationshipbetween the statistical features of the 15-25 day oscillation and theatmospheric circulation.
出处
《南京气象学院学报》
CSCD
1991年第A30期432-438,共7页
Journal of Nanjing Institute of Meteorology
关键词
青藏高原
大气
低频振荡
统计
环流
low-frequency oscillation
maximum entropy spectrum
digital filtering
