Decreasing trend of tropical cyclone-induced ocean warming in recent decades

Tropical cyclones (TCs) can influence climate by pumping heat into the ocean, yet little is known about how the TC-induced ocean heat uptake (OHU) has changed in recent decades. Based on ocean reanalysis, we calculated OHU and found a significant decline of TC-induced OHU from 1982 to 2018. If all t...

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Main Authors: Ruizi Shi, Qinya Zhang, Fanghua Xu, Xueyang Zhang, Yanluan Lin, Jishi Zhang
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:Environmental Research Letters
Subjects:
Online Access:https://doi.org/10.1088/1748-9326/acd2ed
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author Ruizi Shi
Qinya Zhang
Fanghua Xu
Xueyang Zhang
Yanluan Lin
Jishi Zhang
author_facet Ruizi Shi
Qinya Zhang
Fanghua Xu
Xueyang Zhang
Yanluan Lin
Jishi Zhang
author_sort Ruizi Shi
collection DOAJ
description Tropical cyclones (TCs) can influence climate by pumping heat into the ocean, yet little is known about how the TC-induced ocean heat uptake (OHU) has changed in recent decades. Based on ocean reanalysis, we calculated OHU and found a significant decline of TC-induced OHU from 1982 to 2018. If all the ocean heat gain is balanced by poleward heat transport, approximately 15% of peak ocean heat transport would have been reduced during the study period. The decreasing trend of OHU is consistent with the enhanced ocean stratification, the shallowed mixed layer depth and the reduced cold wake size. The reduction of OHU primarily occurs in the Northwest Pacific, where the shortened TC lifespan contributes as well. Furthermore, the decline of OHU might offset about 28% of the upper ocean warming in the subtropical Northwest Pacific.
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spelling doaj.art-864dcb98a48141d5ab04b4c0e3a686792023-08-09T15:16:31ZengIOP PublishingEnvironmental Research Letters1748-93262023-01-0118606401310.1088/1748-9326/acd2edDecreasing trend of tropical cyclone-induced ocean warming in recent decadesRuizi Shi0https://orcid.org/0000-0002-0660-5786Qinya Zhang1Fanghua Xu2https://orcid.org/0000-0003-4057-8387Xueyang Zhang3Yanluan Lin4Jishi Zhang5Department of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University , Beijing 100084, People’s Republic of ChinaDepartment of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University , Beijing 100084, People’s Republic of ChinaDepartment of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University , Beijing 100084, People’s Republic of ChinaDepartment of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University , Beijing 100084, People’s Republic of ChinaDepartment of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University , Beijing 100084, People’s Republic of ChinaDepartment of Earth System Science, Ministry of Education Key Laboratory for Earth System Modeling, Institute for Global Change Studies, Tsinghua University , Beijing 100084, People’s Republic of China; Lawrence Livermore National Laboratory , Livermore, CA, United States of AmericaTropical cyclones (TCs) can influence climate by pumping heat into the ocean, yet little is known about how the TC-induced ocean heat uptake (OHU) has changed in recent decades. Based on ocean reanalysis, we calculated OHU and found a significant decline of TC-induced OHU from 1982 to 2018. If all the ocean heat gain is balanced by poleward heat transport, approximately 15% of peak ocean heat transport would have been reduced during the study period. The decreasing trend of OHU is consistent with the enhanced ocean stratification, the shallowed mixed layer depth and the reduced cold wake size. The reduction of OHU primarily occurs in the Northwest Pacific, where the shortened TC lifespan contributes as well. Furthermore, the decline of OHU might offset about 28% of the upper ocean warming in the subtropical Northwest Pacific.https://doi.org/10.1088/1748-9326/acd2eddecreasingtrendtropical cycloneocean heat uptake
spellingShingle Ruizi Shi
Qinya Zhang
Fanghua Xu
Xueyang Zhang
Yanluan Lin
Jishi Zhang
Decreasing trend of tropical cyclone-induced ocean warming in recent decades
Environmental Research Letters
decreasing
trend
tropical cyclone
ocean heat uptake
title Decreasing trend of tropical cyclone-induced ocean warming in recent decades
title_full Decreasing trend of tropical cyclone-induced ocean warming in recent decades
title_fullStr Decreasing trend of tropical cyclone-induced ocean warming in recent decades
title_full_unstemmed Decreasing trend of tropical cyclone-induced ocean warming in recent decades
title_short Decreasing trend of tropical cyclone-induced ocean warming in recent decades
title_sort decreasing trend of tropical cyclone induced ocean warming in recent decades
topic decreasing
trend
tropical cyclone
ocean heat uptake
url https://doi.org/10.1088/1748-9326/acd2ed
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AT fanghuaxu decreasingtrendoftropicalcycloneinducedoceanwarminginrecentdecades
AT xueyangzhang decreasingtrendoftropicalcycloneinducedoceanwarminginrecentdecades
AT yanluanlin decreasingtrendoftropicalcycloneinducedoceanwarminginrecentdecades
AT jishizhang decreasingtrendoftropicalcycloneinducedoceanwarminginrecentdecades