The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium

Abstract Inconsistent reconstructions of East Asian hydroclimate for the last millennium significantly limit our understanding of the mechanisms behind climate variability during the medieval climate anomaly (MCA) and little ice age (LIA) in the region. In this study, we present new high-resolution...

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Autores principales:	Jungjae Park, Jiwoo Han, Qiuhong Jin, Junbeom Bahk, Sangheon Yi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/027decba4c794653b79e9084f575b6c5
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spelling	oai:doaj.org-article:027decba4c794653b79e9084f575b6c52021-12-02T16:06:00ZThe Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium10.1038/s41598-017-08538-12045-2322https://doaj.org/article/027decba4c794653b79e9084f575b6c52017-08-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-08538-1https://doaj.org/toc/2045-2322Abstract Inconsistent reconstructions of East Asian hydroclimate for the last millennium significantly limit our understanding of the mechanisms behind climate variability during the medieval climate anomaly (MCA) and little ice age (LIA) in the region. In this study, we present new high-resolution multiproxy records (diatom, δ13C, C/N, TS) from the Mulyoungari swamp, Jeju Island, South Korea. Our results indicate that El Niño southern oscillation-like variations caused the dry MCA/wet LIA pattern in the study area. Recent paleo-ENSO studies generally support the hypothesis that the MCA was characterized by more persistent El Niño-like conditions. During El Niño events, the genesis of typhoons affecting coastal East Asia tends to diminish because of warm anomalies of eastern tropical Pacific (ETP) SSTs and downward motions over the western tropical Pacific. Therefore, coastal East Asia likely experienced a decline in typhoon-related precipitation during the MCA, in contrast to monsoon-dominated northern China. Our results additionally imply that SST anomalies in the ETP need to be carefully checked to better understand current hydroclimate variability in coastal East Asia, one of the most populated areas on earth.Jungjae ParkJiwoo HanQiuhong JinJunbeom BahkSangheon YiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jungjae Park Jiwoo Han Qiuhong Jin Junbeom Bahk Sangheon Yi The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium
description	Abstract Inconsistent reconstructions of East Asian hydroclimate for the last millennium significantly limit our understanding of the mechanisms behind climate variability during the medieval climate anomaly (MCA) and little ice age (LIA) in the region. In this study, we present new high-resolution multiproxy records (diatom, δ13C, C/N, TS) from the Mulyoungari swamp, Jeju Island, South Korea. Our results indicate that El Niño southern oscillation-like variations caused the dry MCA/wet LIA pattern in the study area. Recent paleo-ENSO studies generally support the hypothesis that the MCA was characterized by more persistent El Niño-like conditions. During El Niño events, the genesis of typhoons affecting coastal East Asia tends to diminish because of warm anomalies of eastern tropical Pacific (ETP) SSTs and downward motions over the western tropical Pacific. Therefore, coastal East Asia likely experienced a decline in typhoon-related precipitation during the MCA, in contrast to monsoon-dominated northern China. Our results additionally imply that SST anomalies in the ETP need to be carefully checked to better understand current hydroclimate variability in coastal East Asia, one of the most populated areas on earth.
format	article
author	Jungjae Park Jiwoo Han Qiuhong Jin Junbeom Bahk Sangheon Yi
author_facet	Jungjae Park Jiwoo Han Qiuhong Jin Junbeom Bahk Sangheon Yi
author_sort	Jungjae Park
title	The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium
title_short	The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium
title_full	The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium
title_fullStr	The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium
title_full_unstemmed	The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium
title_sort	link between enso-like forcing and hydroclimate variability of coastal east asia during the last millennium
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/027decba4c794653b79e9084f575b6c5
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The Link between ENSO-like Forcing and Hydroclimate Variability of Coastal East Asia during the Last Millennium

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