Interannual Variability of Regional Hadley Circulation and El Niño Interaction-Reference-Cited by-同舟云学术

Interannual Variability of Regional Hadley Circulation and El Niño Interaction

Published:2023-02-22 Issue:4 Volume:50 Page:
ISSN:0094-8276
Container-title:Geophysical Research Letters
language:en
Short-container-title:Geophysical Research Letters

Author:

Li Yadi¹²,Xie Shang‐Ping³^ORCID,Lian Tao⁴⁵⁶^ORCID,Zhang Gan⁷^ORCID,Feng Juan⁸^ORCID,Ma Jing⁹,Peng Qihua³¹⁰^ORCID,Wang Wenzhu¹²,Hou Yurong¹²,Li Xichen¹^ORCID

Affiliation:

1. International Center for Climate and Environment Sciences (ICCES) Institute of Atmospheric Physics Chinese Academy of Sciences Beijing China

2. University of Chinese Academy of Sciences Beijing China

3. Scripps Institution of Oceanography University of California San Diego La Jolla CA USA

4. State Key Laboratory of Satellite Ocean Environment Dynamics Second Institute of Oceanography Ministry of Natural Resources Hangzhou China

5. Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai) Zhuhai China

6. School of Oceanography Shanghai Jiao Tong University Shanghai China

7. Atmospheric and Oceanic Sciences Program Princeton University Princeton NJ USA

8. State Key Laboratory of Remote Sensing Science College of Global Change and Earth System Science Beijing Normal University Beijing China

9. Collaborative Innovation Center on Forecast and Evaluation of Meteorological Disasters/KLME/ILCEC Nanjing University of Information Science and Technology Nanjing China

10. State Key Laboratory of Tropical Oceanography South China Sea Institute of Oceanology Chinese Academy of Sciences Guangzhou China

Abstract

AbstractEl Niño‐Southern Oscillation (ENSO) triggers variations of the global Hadley circulation (HC), while the latter may potentially feedback to ENSO events. Previous studies mainly investigated the interactions between ENSO and the global zonal‐mean HC. Here, we present a regional perspective of HC variability by introducing zonal variations. Results show that El Niño intensifies the regional HC over the central‐eastern Pacific, while weakening the regional HC over both the Indo‐Pacific warm pool and the tropical Atlantic. The background seasonal cycle modulates the equatorial‐asymmetric component of HC, with an anticlockwise (clockwise) asymmetric circulation over the central equatorial Pacific before (after) El Niño peaks. Remarkably, the asymmetric HC in boreal spring leads ENSO with a lead correlation of up to 0.68, mediated by the wind‐evaporation‐sea surface temperature (SST) feedback and other atmosphere‐ocean dynamics. The antecedent HC anomaly may contribute to ENSO predictability.

Publisher

American Geophysical Union (AGU)

Subject

General Earth and Planetary Sciences,Geophysics

Link

https://onlinelibrary.wiley.com/doi/pdf/10.1029/2022GL102016

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