연구진흥

창의적인 신지식 창출과 산업계와의 협력적 네트워크 구축

금주의 우수논문

SCI-E Article
Two regimes of inter-basin interactions between the Atlantic and Pacific Oceans on interannual timescales
예상욱
  1. 성명
    예상욱
  2. 소속
    과학기술융합대학 해양융합공학과
  3. 캠퍼스
  4. 우수선정주
    2023년 03월 3째주
Author
예상욱 (Dept Marine Sci & Convergent Technol) corresponding author;
Corresponding Author Info
Kug, JS (corresponding author), Pohang Univ Sci & Technol POSTECH, Div Environm Sci & Engn, Pohang, South Korea.; Yeh, SW (corresponding author), Hanyang Univ, Dept Marine Sci & Convergent Technol, ERICA, Ansan, South Korea.; Kug, JS (corresponding author
E-mail
이메일swyeh@hanyang.ac.kr
Document Type
Article
Source
NPJ CLIMATE AND ATMOSPHERIC SCIENCE Volume:6 Issue:1 Pages:- Published:2023
Times Cited
0
External Information
http://dx.doi.org/10.1038/s41612-023-00332-3
Abstract
Understanding the inter-basin interactions between the Atlantic and Pacific Oceans is of great concern due to their substantial global climatic implications. By analyzing observational reanalysis datasets (1948-2020), we found that there are two regimes in Atlantic-Pacific inter-basin interactions: (1) the Pacific-driven regime, and (2) the Atlantic-driven regime. In the Pacific-driven regime before the mid-1980s, the El Nino-Southern Oscillation (ENSO) in winter effectively drives the primary mode of sea surface temperature anomaly (SSTA) in the tropical Atlantic (i.e., North Tropical Atlantic (NTA) mode) in the following spring. The NTA mode has a meridional contrast of SSTA along the Atlantic Intertropical Convergence Zone, similar to the Atlantic Meridional Mode. Whereas, in the Atlantic-driven regime after the mid-1980s, the ENSO effect on the NTA becomes remarkably weaker, so that the NTA mode is featured with a SSTA monopole. Notably, the NTA mode without the meridional contrast of SSTA is capable of modulating an ENSO event with a lag. Our analyses of the latest climate models participating in the Coupled Model Intercomparison Project (CMIP) phases 6 support the hypothesis that the two regimes engendered by the Atlantic-Pacific inter-basin interactions are likely due to natural variability.
Web of Science Categories
Meteorology & Atmospheric Sciences
Funding
National Research Foundation (NRF) of Korea - Korean government (MSIT) [NRF-2020R1C1C1006569]; National Research Foundation of Korea (NRF) [NRF-2018R1A5A1024958]; National Research Foundation of Korea (NRF) - Korean government [NRF-2022R1A3B1077622]
Language
English
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