Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer

In a globally changing climate, there is a growing concern for understanding and predicting compound climate extremes. However, the relationship of compound climate extremes with each other has been mostly analyzed in isolation and/or on regional scales. Little attention has been paid to their simul...

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Main Authors: Joseph Basconcillo, Il-Ju Moon, Bin Wang, Malcolm Mistry
Format: Article
Language:English
Published: IOP Publishing 2021-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/ac30f8
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author Joseph Basconcillo
Il-Ju Moon
Bin Wang
Malcolm Mistry
author_facet Joseph Basconcillo
Il-Ju Moon
Bin Wang
Malcolm Mistry
author_sort Joseph Basconcillo
collection DOAJ
description In a globally changing climate, there is a growing concern for understanding and predicting compound climate extremes. However, the relationship of compound climate extremes with each other has been mostly analyzed in isolation and/or on regional scales. Little attention has been paid to their simultaneous occurrence and compound impacts worldwide. Here we demonstrate that the compound climate extremes in the Northern Hemisphere during the boreal summer are interconnected from the tropics to the Arctic. This connection originates from the interannual variations of the Indo-Pacific warm pool’s intertropical convergence zone (ITCZ). We demonstrate that the warm pool ITCZ (WPI) convection possibly influences three major teleconnection patterns (i.e. zonal, meridional, and circumglobal) where compound climate extremes occur along the wave train excited by the WPI convection. Most notably, the WPI can sufficiently explain climate variabilities in the North Atlantic region, which influences the occurrence of compound climate extremes in many parts of Europe and North America. Our findings advance the understanding of the interannual global/regional variability of climate extremes and are potentially valuable for predicting seasonal high-impact climate extremes.
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spelling doaj.art-f73e27088d67400bb977f720c14487182023-08-09T15:07:21ZengIOP PublishingEnvironmental Research Letters1748-93262021-01-01161111403910.1088/1748-9326/ac30f8Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summerJoseph Basconcillo0Il-Ju Moon1https://orcid.org/0000-0001-9370-0900Bin Wang2Malcolm Mistry3https://orcid.org/0000-0003-3345-6197Typhoon Research Center, Jeju National University , Jeju, Republic of Korea; Philippine Atmospheric, Geophysical and Astronomical Services Administration, Department of Science and Technology , Quezon City, PhilippinesTyphoon Research Center, Jeju National University , Jeju, Republic of KoreaSchool of Ocean and Earth Science and Technology, University of Hawaii , Honolulu, HI, United States of AmericaDepartment of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine (LSHTM) , London, United Kingdom; Department of Economics, Ca’ Foscari University of Venice , Venice, ItalyIn a globally changing climate, there is a growing concern for understanding and predicting compound climate extremes. However, the relationship of compound climate extremes with each other has been mostly analyzed in isolation and/or on regional scales. Little attention has been paid to their simultaneous occurrence and compound impacts worldwide. Here we demonstrate that the compound climate extremes in the Northern Hemisphere during the boreal summer are interconnected from the tropics to the Arctic. This connection originates from the interannual variations of the Indo-Pacific warm pool’s intertropical convergence zone (ITCZ). We demonstrate that the warm pool ITCZ (WPI) convection possibly influences three major teleconnection patterns (i.e. zonal, meridional, and circumglobal) where compound climate extremes occur along the wave train excited by the WPI convection. Most notably, the WPI can sufficiently explain climate variabilities in the North Atlantic region, which influences the occurrence of compound climate extremes in many parts of Europe and North America. Our findings advance the understanding of the interannual global/regional variability of climate extremes and are potentially valuable for predicting seasonal high-impact climate extremes.https://doi.org/10.1088/1748-9326/ac30f8compound climate extremestropicsArctictropical cycloneswarm pool ITCZ
spellingShingle Joseph Basconcillo
Il-Ju Moon
Bin Wang
Malcolm Mistry
Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer
Environmental Research Letters
compound climate extremes
tropics
Arctic
tropical cyclones
warm pool ITCZ
title Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer
title_full Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer
title_fullStr Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer
title_full_unstemmed Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer
title_short Possible influence of the warm pool ITCZ on compound climate extremes during the boreal summer
title_sort possible influence of the warm pool itcz on compound climate extremes during the boreal summer
topic compound climate extremes
tropics
Arctic
tropical cyclones
warm pool ITCZ
url https://doi.org/10.1088/1748-9326/ac30f8
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