Influence of the North American dipole on the Atlantic warm pool

Using the observational data, the Coupled Model Intercomparison Project phase 6 (CMIP6) models and the numerical experiment, this study examines the influence of the North American dipole (NAD) on the Atlantic warm pool (AWP). The results show that a strong positive (negative) phase of the winter NA...

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Main Authors: Jinghua Chao, Guangzhou Fan, Ruiqiang Ding, Quanjia Zhong, Tao Wen
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-02-01
Series:Frontiers in Earth Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/feart.2023.1117030/full
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author Jinghua Chao
Jinghua Chao
Guangzhou Fan
Ruiqiang Ding
Quanjia Zhong
Tao Wen
author_facet Jinghua Chao
Jinghua Chao
Guangzhou Fan
Ruiqiang Ding
Quanjia Zhong
Tao Wen
author_sort Jinghua Chao
collection DOAJ
description Using the observational data, the Coupled Model Intercomparison Project phase 6 (CMIP6) models and the numerical experiment, this study examines the influence of the North American dipole (NAD) on the Atlantic warm pool (AWP). The results show that a strong positive (negative) phase of the winter NAD tends to inhibit (favor) the development of AWP in its area and depth in subsequent months. As opposed to the North Atlantic Oscillation (NAO), the NAD plays a more pivotal role in influencing the AWP due to its effectiveness in forcing the tropical North Atlantic (TNA) SST variability, which means that AWP variability may be more of a lagging response to NAD atmospheric forcing than a lagging response to NAO atmospheric forcing. Additional analysis indicates that the winter NAD-like atmospheric signal may be stored in the following AWP, thus markedly influencing the TNA precipitation and air temperature in summer. It is speculated that the AWP may act as a bridge linking winter NAD to the following summer precipitation and air temperature in the TNA region.
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spelling doaj.art-091d919417214ecdaa37a90e6bb1ebb62023-02-02T13:24:42ZengFrontiers Media S.A.Frontiers in Earth Science2296-64632023-02-011110.3389/feart.2023.11170301117030Influence of the North American dipole on the Atlantic warm poolJinghua Chao0Jinghua Chao1Guangzhou Fan2Ruiqiang Ding3Quanjia Zhong4Tao Wen5Key Laboratory of Environmental Change and Natural Disasters of Chinese Ministry of Education/State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, ChinaFoshan Nanhai Meteorological Bureau, Foshan, ChinaSchool of Atmospheric Sciences, Chengdu University of Information Technology, Chengdu, ChinaKey Laboratory of Environmental Change and Natural Disasters of Chinese Ministry of Education/State Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, ChinaState Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, ChinaState Key Laboratory of Earth Surface Processes and Resource Ecology, Beijing Normal University, Beijing, ChinaUsing the observational data, the Coupled Model Intercomparison Project phase 6 (CMIP6) models and the numerical experiment, this study examines the influence of the North American dipole (NAD) on the Atlantic warm pool (AWP). The results show that a strong positive (negative) phase of the winter NAD tends to inhibit (favor) the development of AWP in its area and depth in subsequent months. As opposed to the North Atlantic Oscillation (NAO), the NAD plays a more pivotal role in influencing the AWP due to its effectiveness in forcing the tropical North Atlantic (TNA) SST variability, which means that AWP variability may be more of a lagging response to NAD atmospheric forcing than a lagging response to NAO atmospheric forcing. Additional analysis indicates that the winter NAD-like atmospheric signal may be stored in the following AWP, thus markedly influencing the TNA precipitation and air temperature in summer. It is speculated that the AWP may act as a bridge linking winter NAD to the following summer precipitation and air temperature in the TNA region.https://www.frontiersin.org/articles/10.3389/feart.2023.1117030/fullAtlantic warm poolNorth American dipoleNorth Atlantic oscillationair-sea interactionclimatology
spellingShingle Jinghua Chao
Jinghua Chao
Guangzhou Fan
Ruiqiang Ding
Quanjia Zhong
Tao Wen
Influence of the North American dipole on the Atlantic warm pool
Frontiers in Earth Science
Atlantic warm pool
North American dipole
North Atlantic oscillation
air-sea interaction
climatology
title Influence of the North American dipole on the Atlantic warm pool
title_full Influence of the North American dipole on the Atlantic warm pool
title_fullStr Influence of the North American dipole on the Atlantic warm pool
title_full_unstemmed Influence of the North American dipole on the Atlantic warm pool
title_short Influence of the North American dipole on the Atlantic warm pool
title_sort influence of the north american dipole on the atlantic warm pool
topic Atlantic warm pool
North American dipole
North Atlantic oscillation
air-sea interaction
climatology
url https://www.frontiersin.org/articles/10.3389/feart.2023.1117030/full
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