BROWSE

Related Scientist

ccp's photo.

ccp
기후물리연구단
more info

ITEM VIEW & DOWNLOAD

Tropical intraseasonal oscillations as key driver and source of predictability for the 2022 Pakistan record-breaking rainfall event

Cited 0 time in webofscience Cited 0 time in scopus
14 Viewed 0 Downloaded
Title
Tropical intraseasonal oscillations as key driver and source of predictability for the 2022 Pakistan record-breaking rainfall event
Author(s)
Xie, Jinhui; Hsu, Pang-Chi; June-Yi Lee; Wang, Lu; Turner, Andrew G.
Publication Date
2024-10
Journal
npj Climate and Atmospheric Science, v.7, no.1
Publisher
Nature Publishing Group
Abstract
In August 2022, Pakistan experienced unprecedented monsoon rains, leading to devastating floods and landslides affecting millions. While previous research has mainly focused on the contributions of seasonal and synoptic anomalies, this study elucidates the dominant influences of tropical and extratropical intraseasonal oscillations on both the occurrence and subseasonal prediction of this extreme rainfall event. Our scale-decomposed moisture budget analysis revealed that intense rainfall in Pakistan was triggered and sustained by enhanced vertical moisture transport anomalies, primarily driven by interactions between intraseasonal circulation anomalies and the prevailing background moisture field when tropical and mid-latitude systems coincided over Pakistan. Evaluation of subseasonal-to-seasonal prediction models further highlighted the critical role of tropical intraseasonal modes in causing this extreme rainfall event in Pakistan. Models that accurately predicted northward-propagating intraseasonal convection with a forecast lead time of 8-22 days demonstrated good skill in predicting the extreme event over Pakistan.
URI
https://pr.ibs.re.kr/handle/8788114/16177
DOI
10.1038/s41612-024-00809-9
ISSN
2397-3722
Appears in Collections:
Center for Climate Physics(기후물리 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
There are no files associated with this item.

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

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

Browse