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기후물리 연구단
기후물리 연구단
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ENSO Regime Changes Responsible for Decadal Phase Relationship Variations Between ENSO Sea Surface Temperature and Warm Water Volume

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Title
ENSO Regime Changes Responsible for Decadal Phase Relationship Variations Between ENSO Sea Surface Temperature and Warm Water Volume
Author(s)
Zhang W.; Li S.; Jin F.-F.; Xie R.; Liu C.; Malte F. Stuecker; Xue A.
Publication Date
2019-07
Journal
GEOPHYSICAL RESEARCH LETTERS, v.46, no.13, pp.7546 - 7553
Publisher
AMER GEOPHYSICAL UNION
Abstract
©2019. American Geophysical Union. All Rights Reserved.The relationship between the equatorial Pacific warm water volume (WWV) and El Niño–Southern Oscillation (ENSO) sea surface temperature (SST) has varied considerably on decadal timescales. These changes are strongly related to the occurrence frequency of central Pacific (CP) ENSO events. While both eastern Pacific (EP) and CP ENSO events show clear signatures of WWV recharge/discharge, their phase-lag relationships between WWV and Niño3.4 SST are different. The WWV usually leads the Niño3.4 SST by two to three seasons during EP ENSO, while the lead time is reduced to one season during CP ENSO. The different phase-lag relationships can be explained by distinct periodicities of the two ENSO types. Hence, ENSO regime changes associated with decadal predominance of either EP or CP ENSO events can give rise to decadal variations in the statistical WWV-ENSO SST relationship. We emphasize the importance of identifying these different ENSO types and potentially different ENSO regimes to assess ENSO predictability
URI
https://pr.ibs.re.kr/handle/8788114/6298
ISSN
0094-8276
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > Journal Papers (저널 논문)
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17. ENSO regime changes responsible for decadal phase relationship variations between ENSO sea surface temperature and warm water volume.pdfDownload

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