%0 Journal Article
%T The Abortion of the El Nino Event in 1993 and Its Comparison with the Typical El Nino Event
1993年El Nino夭折事件及其与典型El Nino事件的对比分析
%A Liu Changzheng
%A Xue Feng
%A
刘长征
%A 薛峰
%J 气候与环境研究
%D 2012
%I
%X Over the equatorial central-eastern Pacific,there is an anomalous seawater warming event that is significantly different from the typical El Nio event.In 1993,for example,an anomalous warming event occurred in March with its peak in May,then it decayed rapidly.This warming event is referred to abortion of an El Nio event.By comparing the event in 1993 with the typical El Nio event,the authors explore the feature and the cause of the abortion of this event.It is found that the event in 1993 is a local air-sea coupling phenomenon in the tropical central-eastern Pacific.Due to the relatively strong El Nio event during 1991-1992,the western Pacific warm pool was anomalously cold during 1992-1993,and the thermal condition was not suitable for the occurrence of an El Nio event in 1993.In this case,the eastward extension of the equatorial westerly anomaly in spring from the western Pacific to the central Pacific satisfied the dynamical condition for the occurrence of an El Nio event,but the basin-scale Bjerknes-type positive feedback failed to work due to the cold warm pool.As a result,the seawater warming in the equatorial central-eastern Pacific lasted for a short period,then it decayed rapidly,causing the abortion of an El Nio event.
%K abortion
%K typical El Nio event
%K thermal condition
%K dynamical condition
夭折
%K 典型
%K El
%K Nio事件
%K 热力条件
%K 动力条件
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=484C10BAB5333C14751916EACFF8295F&aid=D7EC41DBAB8A19631F35876F253BF608&yid=99E9153A83D4CB11&vid=BCA2697F357F2001&iid=0B39A22176CE99FB&sid=2BA123C6EB9D54C2&eid=02DC3A182A5530DF&journal_id=1006-9585&journal_name=气候与环境研究&referenced_num=0&reference_num=21