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Development of South Atlantic Subtropical Dipole and Its Relationship with ENSO

Development of South Atlantic Subtropical Dipole and Its Relationship with ENSO

Year:    2022

Author:    Xueli Liu, Ran Dong, Chenguang Guo, Yuxin Li

Journal of Information and Computing Science, Vol. 17 (2022), Iss. 1 : pp. 19–27

Abstract

Based on the monthly sea surface temperature (SST) data provided by Hadley Centre, the characteristics of Southern Subtropical Atlantic SST variation and its relationship with ENSO are discussed. The results of this paper show that: 1) In the summer of the southern hemisphere, the SST anomaly (SSTA) of the Southern Subtropical Atlantic presents a southwest-northeast antiphase dipole modes, that is, the South Atlantic Subtropical Dipole (SASD), which develops from September to November. It reaches its peak in austral summer(December January February, the next year), weakens from March to May (the next year), and declines until austarl winter(June July August, the next year). 2) SASD is significantly correlated with ENSO, and positive SASD and negative SASD are correlated with El Niño and La Niña events respectively.

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Journal Article Details

Publisher Name:    Global Science Press

Language:    English

DOI:    https://doi.org/2024-JICS-22358

Journal of Information and Computing Science, Vol. 17 (2022), Iss. 1 : pp. 19–27

Published online:    2022-01

AMS Subject Headings:   

Copyright:    COPYRIGHT: © Global Science Press

Pages:    9

Keywords:    The South Atlantic Subtropical Dipole ENSO empirical orthogonal function Composite analysis.

Author Details

Xueli Liu

Ran Dong

Chenguang Guo

Yuxin Li