摘要
综述了PDO机制的研究进展,尤其是近年来关于PDO是热带和南半球起源的观点,强调PDO是一种太平洋海盆尺度的现象。讨论了SST异常的维持机制、大气在PDO机制中的作用及不同相位中大气的变化特征。最后提出自己的看法:只考虑北太平洋PDO信号是没有构成回路的,实际上北太平洋的PDO冷、暖期的交替可能是对南太平洋闭合回路的一种反应。
The research advance of new PDO loop mechanisms is summarized in this paper. In recent years, it is held that PDO is originated from tropical and south Pacific and it is emphasized that PDO is a Pacific basin-wide phenomenon. The persistence mechanism of SST anomaly, atmospheric effects in PDO mechanism and atmospheric low variation features during different phases of PDO are emphasized too. We propose an idea that the only considering of the PDO signature in North Pacific is not a close loop, and the transition between PDO cold and warm phases in North Pacific is actually a response to the close loop of South Pacific.
出处
《热带气象学报》
CSCD
北大核心
2003年第B09期136-144,共9页
Journal of Tropical Meteorology
基金
国家自然科学基金重点项目"热带太平洋年际与年代际海洋环流变异规律"(40136010)资助
关键词
年代际变化
机制
大气变化
太平洋海盆尺度
interdecadal variability
mechanism
atmospheric variation
Pacific ocean basin-wide
