Synchronous spring precipitation in Southeastern China and Bengal: a potential indicator for the Indian summer monsoon?

Bibliographic Details
Title: Synchronous spring precipitation in Southeastern China and Bengal: a potential indicator for the Indian summer monsoon?
Authors: Keyan Fang, Feifei Zhou, Hao Wu, Hui Tang, Zepeng Mei, Jinbao Li, Tinghai Ou, Zheng Zhao, Deliang Chen
Source: Environmental Research Letters, Vol 19, Iss 10, p 104008 (2024)
Publisher Information: IOP Publishing, 2024.
Publication Year: 2024
Collection: LCC:Environmental technology. Sanitary engineering
LCC:Environmental sciences
LCC:Science
LCC:Physics
Subject Terms: spring synchronous precipitation, East Asian Subtropical Jet (EASJ), El Niño-Southern oscillation (ENSO), Indian summer monsoon (ISM), tree ring, Environmental technology. Sanitary engineering, TD1-1066, Environmental sciences, GE1-350, Science, Physics, QC1-999
More Details: Spring precipitation in southeastern China and Bengal, occurring during the transitional phase from winter to summer monsoons, serves as a critical window into the dynamics of large-scale circulations and the subsequent summer monsoon. While many studies have analyzed spring precipitation in southeastern China and Bengal, their interconnections and implications for the summer monsoon have remained relatively under explored. We utilized the Empirical Orthogonal Function of spring precipitation to reveal Synchronous Spring Precipitation (SSP) in southeastern China and Bengal. This synchronicity is bridged by the East Asian Subtropical Jet (EASJ) that extends from Bengal to southeastern China. The EASJ was predominantly correlated with precipitation in southeastern China prior to the 1990s, while it developed a more profound connection with precipitation in Bengal after the 1990s. Notably, SSP anomalies occurred during the developing phase of the El Niño-Southern Oscillation (ENSO). The predictive capacity of SSP for the Indian summer monsoon (ISM) amplifies during periods of the intensified SSP-ENSO correlations and positive phase of the North Pacific Meridional Mode. Tree-ring based reconstructions spanning the past two centuries further corroborate the persistent linkages among the SSP, ISM, and ENSO. Our research sheds light on the intricate interplay of these factors and their significance in understanding and predicting the monsoon dynamics in the region.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 1748-9326
Relation: https://doaj.org/toc/1748-9326
DOI: 10.1088/1748-9326/ad6f2b
Access URL: https://doaj.org/article/fc252934cad24ad5b56b579ef566157b
Accession Number: edsdoj.fc252934cad24ad5b56b579ef566157b
Database: Directory of Open Access Journals
More Details
ISSN:17489326
DOI:10.1088/1748-9326/ad6f2b
Published in:Environmental Research Letters
Language:English