BROWSE

Related Scientist

tamas,bodai's photo.

tamas,bodai
기후물리연구단
more info

ITEM VIEW & DOWNLOAD

Investigating ENSO and its teleconnections under climate change in an ensemble view - A new perspective

Cited 3 time in webofscience Cited 3 time in scopus
593 Viewed 134 Downloaded
Title
Investigating ENSO and its teleconnections under climate change in an ensemble view - A new perspective
Author(s)
Haszpra T.; Herein M.; Tamás Bódai
Publication Date
2020-03
Journal
EARTH SYSTEM DYNAMICS, v.11, no.1, pp.267 - 280
Publisher
COPERNICUS GESELLSCHAFT MBH
Abstract
© 2020 Museum National d'Histoire Naturelle. All rights reserved.The changes in the El Niño-Southern Oscillation (ENSO) phenomenon and its precipitation-related teleconnections over the globe under climate change are investigated in the Community Earth System Model Large Ensemble from 1950 to 2100. For the investigation, a recently developed ensemble-based method, the snapshot empirical orthogonal function (SEOF) analysis, is used. The instantaneous ENSO pattern is defined as the leading mode of the SEOF analysis carried out at a given time instant over the ensemble. The corresponding principal components (PC1s) characterize the ENSO phases. By considering sea surface temperature (SST) regression maps, we find that the largest changes in the typical amplitude of SST fluctuations occur in the June-July-August-September (JJAS) season, in the Niño3-Niño3.4 (5_ N-5_ S, 170-90_W; NOAA Climate Prediction Center) region, and the western part of the Pacific Ocean; however, the increase is also considerable along the Equator in December-January-February (DJF). The Niño3 amplitude also shows an increase of about 20% and 10% in JJAS and DJF, respectively. The strength of the precipitation-related teleconnections of the ENSO is found to be nonstationary, as well. For example, the anticorrelation with precipitation in Australia in JJAS and the positive correlation in central and northern Africa in DJF are predicted to be more pronounced by the end of the 21th century. Half-year-lagged correlations, aiming to predict precipitation conditions from ENSO phases, are also studied. The Australian and Indonesian precipitation and that of the eastern part of Africa in both JJAS and DJF seem to be well predictable based on the ENSO phase, while the southern Indian precipitation relates to the half-year previous ENSO phase only in DJF. The strength of these connections increases, especially from the African region to the Arabian Peninsula
URI
https://pr.ibs.re.kr/handle/8788114/7169
DOI
10.5194/esd-11-267-2020
ISSN
2190-4979
Appears in Collections:
HiddenCommunity > 1. Journal Papers (저널논문)
Files in This Item:
16. Investigating ENSO and its teleconnections under climate change in an ensemble view – a new perspective.pdfDownload

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