File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

차동현

Cha, Dong-Hyun
High-impact Weather Prediction Lab.
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Did recent sea surface temperature warming reinforce the extreme East Asian summer monsoon precipitation in 2020?

Author(s)
Mun, TaehoPark, HaerinCha, Dong-HyunSong, Chang-KeunMin, Seung-KiSon, Seok-Woo
Issued Date
2024-06
DOI
10.1016/j.wace.2024.100682
URI
https://scholarworks.unist.ac.kr/handle/201301/83020
Citation
WEATHER AND CLIMATE EXTREMES, v.44, pp.100682
Abstract
We analyzed the possible effects of recent sea surface temperature (SST) warming on the extraordinary East Asian summer monsoon (EASM) precipitation in 2020 summer. The dynamic and thermodynamic impacts of SST are examined by conducting regional climate model experiments with observed SST and cold SST where the 22year SST trend is removed. In the presence of warm SST, precipitation increases in low latitudes but decreases in the EASM region. This dipolar precipitation change pattern opposes the precipitation anomalies in 2020 summer, indicating that the extraordinary 2020 EASM precipitation is not likely driven by recent SST warming. The warm SST suppresses the western North Pacific subtropical high expansion and weakens the southwesterly from the South China Sea toward the EASM region. In terms of large-scale atmospheric circulations, SST-induced wind changes strengthen the local Walker circulation in the South China Sea and the Philippines and the local Hadley circulation across the EASM region. These support the reduced EASM rainfall in the control experiment compared to the cold SST experiment and imply that the precipitation reduction by dynamical effects could exceed the precipitation increase by thermodynamic effects in the EASM region under warm SST.
Publisher
ELSEVIER
ISSN
2212-0947
Keyword (Author)
Extreme precipitationRecent sea surface temperature warmingEast Asian summer monsoon
Keyword
CLIMATECIRCULATIONSENSITIVITYSIMULATIONCOMPONENTSEL-NINOANOMALIESTRANSPORTIMPACTCHINA

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.