热带气象学报2016，Vol.32Issue(5)：634-644,11.DOI:10.16032/j.issn.1004-4965.2016.05.006
MJO持续异常对ENSO的影响
THE INFLUENCE OF PERSISTENT ANOMALY OF MJO ON ENSO
摘要
Abstract
In this study,two possible persistent anomaly modes of MJO are found in the summer season (per-sistently active over the Pacific and Indian Oceans),and an index is set to define the intensity of the two modes.They are proved to have high statistical correlations to subsequent ENSO events in the autumn and win-ter seasons:When a persistent anomaly of MJO happens in the Pacific in summer,El Nio events are often in-duced during the autumn and winter seasons of that year.However,during the other MJO mode when the sum-mer persistent anomaly of MJO occurs in the Indian Ocean,La Nia events often follow instead.An analysis of the atmospheric circulation field indicates that persistent anomaly of MJO can probably affect the entire equatori-al Pacific circulation,resulting in wind stress anomalies.The wind stress anomalies could excite warm or cold water masses which propagate eastwards in the subsurface ocean.The accumulation of warm or cold subsurface water in the equatorial eastern Pacific may eventually lead to the formation of an ENSO.关键词
MJO/ENSO/风应力/次表层海温(SOTA)/SSTKey words
MJO/ENSO/wind stress/sea surface temperature anomaly/subsurface ocean temperature anomaly分类
天文与地球科学引用本文复制引用
严欣,琚建华,甘薇薇..MJO持续异常对ENSO的影响[J].热带气象学报,2016,32(5):634-644,11.基金项目
国家自然科学基金项目（41375059）；国家公益性行业（气象）专项（GYHY201306022）共同资助 （）
