文章基本信息

标题：Revisiting Asymmetry for the Decaying Phases of El Nino and La Nina
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作者：Chen Wei ; Lu Ri-Yu ; Buwen Dong 等
期刊名称：Atmospheric and Oceanic Science Letters
印刷版ISSN：1674-2834
电子版ISSN：2376-6123
出版年度：2014
卷号：7
期号：4
页码：275-278
DOI：10.3878/j.issn.1674-2834.13.0091
语种：English
出版社：Taylor and Francis Ltd
摘要：This study investigated the relationship between the asymmetry in the duration of El Niño and La Nina and the length of their decaying phases. The results suggested that the duration asymmetry comes from the long decaying ENSO cases rather than the short decaying ones. The evolutions of short decaying El Niño and La Nina are approximately a mirror image with a rapid decline in the following summer for the warm and cold events. However, a robust asymmetry was found in long decaying cases, with a prolonged and re-intensified La Nina in the following winter. The asymmetry for long decaying cases starts from the westward extension of the zonal wind anomalies in a mature winter, and is further contributed to by the air-sea interaction over the tropical Pacific in the following seasons.
关键词：ENSO; asymmetry; duration; decaying phase