skip to main content
Language:
Search Limited to: Search Limited to: Resource type Show Results with: Show Results with: Search type Index

Impact of La Niña on the Following-Summer East Asian Precipitation through Intermediate SST Anomalies

Journal of climate, 2023-09, Vol.36 (17), p.5743-5755 [Peer Reviewed Journal]

Distributed under a Creative Commons Attribution 4.0 International License ;ISSN: 0894-8755 ;EISSN: 1520-0442 ;DOI: 10.1175/JCLI-D-22-0650.1

Full text available

Citations Cited by
  • Title:
    Impact of La Niña on the Following-Summer East Asian Precipitation through Intermediate SST Anomalies
  • Author: Wen, Na ; Li, Laurent
  • Subjects: Environmental Sciences
  • Is Part Of: Journal of climate, 2023-09, Vol.36 (17), p.5743-5755
  • Description: Abstract This study investigates the impact of boreal winter–peaked La Niña on the following-summer precipitation in East Asia through intermediate sea surface temperature (SST) anomalies playing the role of relay in observation and numerical models. There are widespread dry conditions in both North and South China and wet conditions in coastal areas of central and eastern China. Such a pattern is mainly attributed to an anomalous low pressure over the western tropical Pacific and an anomalous anticyclone over northeast Asia. It is found that the delayed impact of La Niña on the East Asian climate is operated through intermediate SST anomalies—the Z-shape cold SST anomalies in the tropical North Pacific. There might be three ways for the SST anomalies to operate. First, they produce tropical atmospheric perturbations that can penetrate into the subtropical jet through the westerly trough over the northeast subtropical Pacific, the wave train being then excited along the jet. Second, perturbations created through the monsoon trough over the western Pacific can directly stimulate northward-propagating Rossby waves along the East Asian coast, mainly at low level. And third, perturbations over the tropical Atlantic–northwest Africa can also trigger downstream propagating waves along the subtropical jet. The observation effects of the intermediate SST anomalies and their possible impact mechanisms on atmospheric circulation are largely reproduced within numerical simulations performed with the Community Earth System Model.
  • Publisher: American Meteorological Society
  • Language: English
  • Identifier: ISSN: 0894-8755
    EISSN: 1520-0442
    DOI: 10.1175/JCLI-D-22-0650.1
  • Source: Alma/SFX Local Collection
Back to results list
INSPIRE LIBRARY - TON DUC THANG UNIVERSITY (84-028) 37 755 057 Feedback
19 Nguyen Huu Tho St. Dist.7, HCM thuvien@tdtu.edu.vn

Copyright © 2017 INSPIRE LIBRARY - TON DUC THANG UNIVERSITY

Searching Remote Databases, Please Wait