气候与气候变化研究进展  

Progress in Research on Climate and Climate Change

出　　处：《中国气象科学研究院年报》2022年第1期73-90,共18页Annual Report of Cams

摘　　要：1次季节至季节变化特征与机理1.11青藏高原-孟加拉湾大气热力差异与夏季暴雨利用1979-2019年多年平均5-8月的逐日气象资料,采用EOF,MV-EOF、相关分析和合成分析等方法,对夏季青藏高原-孟加拉湾的大气热源与中国东部暴雨的时空演变特征及两者之间的联系进行探讨。研究结果表明,MV-EOF能够很好地表现不同要素的空间分布特征及其时间演变之间的联系。1 Features and mechanism of the subseasonal to seasonal variability 1.1 Assessing the reliability of global monsoon low-pressure system track datasets for the East Asian monsoon Limited by the lack of atmospheric observation data over the ocean and the absence of a comprehensive set of track data for monsoon low-pressure systems(MLPSs),an in-depth understanding of the activity of East Asian MLPSs has not been acquired.In recent years,advancements in satellite remote sensing and data assimilation techniques have enabled the creation of numerous high-resolution global reanalysis datasets.

关 键 词：逐日气象资料 时间演变 气候变化研究 合成分析 孟加拉湾 大气热源 夏季暴雨 空间分布特征 

分 类 号：P45[天文地球—大气科学及气象学]