What hindered the El Nino pattern in 2014?

被引：86
作者：
Min, Qingye [1 ]
Su, Jingzhi [1 ]
Zhang, Renhe [1 ]
Rong, Xinyao [1 ]
机构：
[1] Chinese Acad Meteorol Sci, Beijing, Peoples R China
来源：
GEOPHYSICAL RESEARCH LETTERS | 2015年 / 42卷 / 16期
基金：
中国国家自然科学基金;
关键词：
MERIDIONAL MODES; ENSO PREDICTION; EASTERN-PACIFIC; WARM POOL; CLIMATE; EVENTS; RESOLUTION; SKILL;
D O I：
10.1002/2015GL064899
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
At the beginning of 2014, an El Nino event was predicted to occur in the following winter. However, the El Nino that started to develop in 2014 was hindered in the boreal summer, and only the ocean reached a weak El Nino condition. This outcome was largely attributed to a suppressed ocean-atmosphere interaction caused by anomalous easterly winds in the eastern equatorial Pacific. These winds were related to negative sea surface temperature anomalies (SSTAs) in the southeastern subtropical Pacific (SESP). The negative phase of the Interdecadal Pacific Oscillation (IPO) laid the foundation for the persistence of cooler SSTAs and enhanced trade winds in the SESP after the year 2000. As the recent IPO downward trend continued, the SSTAs in SESP reached an extremely low value in the boreal summer of 2014 and imposed a serious obstacle to the evolution of a warming event.
引用
收藏
页码：6762 / 6770
页数：9
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