Potential influence of the Atlantic Multi-decadal Oscillation in modulating the biennial relationship between Indian and Australian summer monsoons

Chilukoti Nagaraju, Karumuri Ashok, Thayannur Mullachery Balakrishnan Nair, Zhaoyong Guan, Wenju Cai

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

Using observed and reanalysed data sets, we investigate the potential role of Atlantic Multi-decadal Oscillations (AMO) in weakening the in-phase association between Indian summer monsoon rainfall (ISMR) and following Australian summer monsoon rainfall (ASMR) during the 1932–1966 period. This weakened inter-monsoon link was earlier attributed to a complete breakdown of the El Niño–Southern Oscillation (ENSO) links with the ASMR. We now find that this weakening was associated with strengthening of low-level westerlies and an increase in local low-level convergence in the northern Australia associated with the warm phase of the AMO during this period. This increased background convergence resulted in relatively enhanced ASMR during the El Niño summers during this period.
Original languageEnglish (US)
Pages (from-to)5220-5230
Number of pages11
JournalInternational Journal of Climatology
Volume38
Issue number14
DOIs
StatePublished - Nov 30 2018
Externally publishedYes

Bibliographical note

Generated from Scopus record by KAUST IRTS on 2023-09-21

ASJC Scopus subject areas

  • Atmospheric Science

Fingerprint

Dive into the research topics of 'Potential influence of the Atlantic Multi-decadal Oscillation in modulating the biennial relationship between Indian and Australian summer monsoons'. Together they form a unique fingerprint.

Cite this