A possible relation between Arctic sea ice and late season Indian Summer Monsoon Rainfall extremes

Abstract The out-of-phase inter-decadal co-variability between summer (JJA) sea ice extent (SIE) in the Kara Sea (KS) sector of the Arctic Ocean and Indian Summer Monsoon Rainfall (ISMR) is found to be weakened during the recent decades with rapidly declining SIE in the KS (since the 1980s). However...

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Bibliographic Details
Published in:npj Climate and Atmospheric Science
Main Authors: Sourav Chatterjee, Muthalagu Ravichandran, Nuncio Murukesh, Roshin P. Raj, Ola M. Johannessen
Format: Article in Journal/Newspaper
Language:English
Published: Nature Portfolio 2021
Subjects:
Environmental sciences
GE1-350
Meteorology. Climatology
QC851-999
Arctic
Arctic Ocean
Indian
Kara Sea
Sea ice
Online Access:https://doi.org/10.1038/s41612-021-00191-w
https://doaj.org/article/a51de953ef5248919db9ae1b851c2409
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Summary:Abstract The out-of-phase inter-decadal co-variability between summer (JJA) sea ice extent (SIE) in the Kara Sea (KS) sector of the Arctic Ocean and Indian Summer Monsoon Rainfall (ISMR) is found to be weakened during the recent decades with rapidly declining SIE in the KS (since the 1980s). However, SIE in the KS and frequency of ISMR extremes are found to have a consistent out-of-phase relation during the rapidly declining SIE periods. A possible physical mechanism for the relation between the late-season ISMR extremes and summer SIE in the KS is suggested, focusing on the recent years since the 1980s.

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