Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China

In this study, 11 extreme precipitation indices were selected to examine the spatiotemporal variation of extreme precipitation in the Poyang Lake Basin during 1960–2017. The responses of extreme precipitation indices to El Nino/Southern Oscillation (ENSO) events of different Pacific Ocean areas were...

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Autores principales:	Xiaoxia Yang, Juan Wu, Jia Liu, Xuchun Ye
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	extreme precipitation spatiotemporal variation ENSO the Poyang Lake Basin Meteorology. Climatology QC851-999
Acceso en línea:	https://doaj.org/article/295071eaca6c4ce7be02b39d9c3f7a3d
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spelling	oai:doaj.org-article:295071eaca6c4ce7be02b39d9c3f7a3d2021-11-25T16:45:51ZChanges of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China10.3390/atmos121115222073-4433https://doaj.org/article/295071eaca6c4ce7be02b39d9c3f7a3d2021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4433/12/11/1522https://doaj.org/toc/2073-4433In this study, 11 extreme precipitation indices were selected to examine the spatiotemporal variation of extreme precipitation in the Poyang Lake Basin during 1960–2017. The responses of extreme precipitation indices to El Nino/Southern Oscillation (ENSO) events of different Pacific Ocean areas were further investigated. The results show that the temperature in the Poyang Lake Basin has increased significantly since the 1990s, and the inter-decadal precipitation fluctuated. Most extreme precipitation indices showed an increasing trend with abrupt changes occurring around 1991. Spatially, most of the extreme precipitation indices decreased from northeast to southwest. The increasing trend of most indices in the center and south of the basin was relatively prominent. The linear correlations between the extreme precipitation indices and Nino 1 + 2 were the most significant. On the timescale of 2–6 years, a common oscillation period between the extreme precipitation of the basin and the four ENSO indices can be observed. After 2010, the positive correlation between the precipitation of the Poyang Lake Basin and the SST (sea surface temperature) anomalies in the equatorial Pacific increased significantly. Additionally, annual total wet–day precipitation in most areas of the Poyang Lake Basin increased with varying degrees in warm ENSO years. The results of this study will improve the understanding of the complex background and driving mechanism of flood disasters in the Poyang Lake Basin.Xiaoxia YangJuan WuJia LiuXuchun YeMDPI AGarticleextreme precipitationspatiotemporal variationENSOthe Poyang Lake BasinMeteorology. ClimatologyQC851-999ENAtmosphere, Vol 12, Iss 1522, p 1522 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	extreme precipitation spatiotemporal variation ENSO the Poyang Lake Basin Meteorology. Climatology QC851-999
spellingShingle	extreme precipitation spatiotemporal variation ENSO the Poyang Lake Basin Meteorology. Climatology QC851-999 Xiaoxia Yang Juan Wu Jia Liu Xuchun Ye Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China
description	In this study, 11 extreme precipitation indices were selected to examine the spatiotemporal variation of extreme precipitation in the Poyang Lake Basin during 1960–2017. The responses of extreme precipitation indices to El Nino/Southern Oscillation (ENSO) events of different Pacific Ocean areas were further investigated. The results show that the temperature in the Poyang Lake Basin has increased significantly since the 1990s, and the inter-decadal precipitation fluctuated. Most extreme precipitation indices showed an increasing trend with abrupt changes occurring around 1991. Spatially, most of the extreme precipitation indices decreased from northeast to southwest. The increasing trend of most indices in the center and south of the basin was relatively prominent. The linear correlations between the extreme precipitation indices and Nino 1 + 2 were the most significant. On the timescale of 2–6 years, a common oscillation period between the extreme precipitation of the basin and the four ENSO indices can be observed. After 2010, the positive correlation between the precipitation of the Poyang Lake Basin and the SST (sea surface temperature) anomalies in the equatorial Pacific increased significantly. Additionally, annual total wet–day precipitation in most areas of the Poyang Lake Basin increased with varying degrees in warm ENSO years. The results of this study will improve the understanding of the complex background and driving mechanism of flood disasters in the Poyang Lake Basin.
format	article
author	Xiaoxia Yang Juan Wu Jia Liu Xuchun Ye
author_facet	Xiaoxia Yang Juan Wu Jia Liu Xuchun Ye
author_sort	Xiaoxia Yang
title	Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China
title_short	Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China
title_full	Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China
title_fullStr	Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China
title_full_unstemmed	Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China
title_sort	changes of extreme precipitation and possible influence of enso events in a humid basin in china
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/295071eaca6c4ce7be02b39d9c3f7a3d
work_keys_str_mv	AT xiaoxiayang changesofextremeprecipitationandpossibleinfluenceofensoeventsinahumidbasininchina AT juanwu changesofextremeprecipitationandpossibleinfluenceofensoeventsinahumidbasininchina AT jialiu changesofextremeprecipitationandpossibleinfluenceofensoeventsinahumidbasininchina AT xuchunye changesofextremeprecipitationandpossibleinfluenceofensoeventsinahumidbasininchina
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Changes of Extreme Precipitation and Possible Influence of ENSO Events in a Humid Basin in China

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