Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China
Understanding the spatiotemporal pattern of precipitation concentration is important in the water cycle under changing environments. In this study, the daily precipitation concentration index in the Yangtze River Delta in China is calculated based on the Lorenz curves obtained from the observed data...
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2022
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Online Access: | https://doi.org/10.2166/wcc.2021.413 https://doaj.org/article/a9f67f95652843ec903d316ba2a855b2 |
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fttriple:oai:gotriple.eu:oai:doaj.org/article:a9f67f95652843ec903d316ba2a855b2 2023-05-15T13:58:27+02:00 Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China Chao Mei Jiahong Liu Ze Huang Hao Wang Kaibo Wang Weiwei Shao Meng Li 2022-03-01 https://doi.org/10.2166/wcc.2021.413 https://doaj.org/article/a9f67f95652843ec903d316ba2a855b2 en eng IWA Publishing 2040-2244 2408-9354 doi:10.2166/wcc.2021.413 https://doaj.org/article/a9f67f95652843ec903d316ba2a855b2 undefined Journal of Water and Climate Change, Vol 13, Iss 3, Pp 1583-1598 (2022) daily precipitation concentration large-scale atmosphere circulation lorenz curve spatiotemporal pattern yangtze river delta geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2022 fttriple https://doi.org/10.2166/wcc.2021.413 2023-01-22T18:10:31Z Understanding the spatiotemporal pattern of precipitation concentration is important in the water cycle under changing environments. In this study, the daily precipitation concentration index in the Yangtze River Delta in China is calculated based on the Lorenz curves obtained from the observed data of 36 meteorological stations from 1960 to 2017, and spatiotemporal pattern variations and their possible causes are investigated. The driving forces of elevation, SUNSPOT, El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation are detected with correlation and wavelet analysis. Results show that, the daily precipitation concentration index ranges from 0.55 to 0.62 during the study period, 22 of 36 stations (accounting for 61%) show increasing trends, while three stations increase significantly at the 95% significant level. Relationship analysis indicates that the daily precipitation concentration shows a slightly negative correlation with elevation, while the relationships with SUNSPOT, El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation are complicated and diverse, there are different correlations and significance levels in different years. Further analysis shows that SUNSPOT is significantly correlated with El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation, which suggests that SUNSPOT may be an important factor that drives the changes of the three large-scale atmosphere circulation factors and causes precipitation concentration changing indirectly. These results provide further understanding of precipitation variations, which is meaningful for regional flood risk management under climate change. HIGHLIGHTS Spatiotemporal variations of daily precipitation concentration in the Yangtze River Delta are investigated.; Daily precipitation concentration shows a strong spatial heterogeneity overall.; Large-scale atmospheric circulation and SUNSPOTS are possible driving forces.; Article in Journal/Newspaper Antarc* Antarctic Arctic Climate change Unknown Antarctic Arctic Pacific Journal of Water and Climate Change 13 3 1583 1598 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
English |
topic |
daily precipitation concentration large-scale atmosphere circulation lorenz curve spatiotemporal pattern yangtze river delta geo envir |
spellingShingle |
daily precipitation concentration large-scale atmosphere circulation lorenz curve spatiotemporal pattern yangtze river delta geo envir Chao Mei Jiahong Liu Ze Huang Hao Wang Kaibo Wang Weiwei Shao Meng Li Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China |
topic_facet |
daily precipitation concentration large-scale atmosphere circulation lorenz curve spatiotemporal pattern yangtze river delta geo envir |
description |
Understanding the spatiotemporal pattern of precipitation concentration is important in the water cycle under changing environments. In this study, the daily precipitation concentration index in the Yangtze River Delta in China is calculated based on the Lorenz curves obtained from the observed data of 36 meteorological stations from 1960 to 2017, and spatiotemporal pattern variations and their possible causes are investigated. The driving forces of elevation, SUNSPOT, El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation are detected with correlation and wavelet analysis. Results show that, the daily precipitation concentration index ranges from 0.55 to 0.62 during the study period, 22 of 36 stations (accounting for 61%) show increasing trends, while three stations increase significantly at the 95% significant level. Relationship analysis indicates that the daily precipitation concentration shows a slightly negative correlation with elevation, while the relationships with SUNSPOT, El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation are complicated and diverse, there are different correlations and significance levels in different years. Further analysis shows that SUNSPOT is significantly correlated with El Niño-Antarctic Oscillation, Pacific Decade Oscillation, and Arctic Oscillation, which suggests that SUNSPOT may be an important factor that drives the changes of the three large-scale atmosphere circulation factors and causes precipitation concentration changing indirectly. These results provide further understanding of precipitation variations, which is meaningful for regional flood risk management under climate change. HIGHLIGHTS Spatiotemporal variations of daily precipitation concentration in the Yangtze River Delta are investigated.; Daily precipitation concentration shows a strong spatial heterogeneity overall.; Large-scale atmospheric circulation and SUNSPOTS are possible driving forces.; |
format |
Article in Journal/Newspaper |
author |
Chao Mei Jiahong Liu Ze Huang Hao Wang Kaibo Wang Weiwei Shao Meng Li |
author_facet |
Chao Mei Jiahong Liu Ze Huang Hao Wang Kaibo Wang Weiwei Shao Meng Li |
author_sort |
Chao Mei |
title |
Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China |
title_short |
Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China |
title_full |
Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China |
title_fullStr |
Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China |
title_full_unstemmed |
Spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the Yangtze River Delta, China |
title_sort |
spatiotemporal pattern variations of daily precipitation concentration and their relationship with possible causes in the yangtze river delta, china |
publisher |
IWA Publishing |
publishDate |
2022 |
url |
https://doi.org/10.2166/wcc.2021.413 https://doaj.org/article/a9f67f95652843ec903d316ba2a855b2 |
geographic |
Antarctic Arctic Pacific |
geographic_facet |
Antarctic Arctic Pacific |
genre |
Antarc* Antarctic Arctic Climate change |
genre_facet |
Antarc* Antarctic Arctic Climate change |
op_source |
Journal of Water and Climate Change, Vol 13, Iss 3, Pp 1583-1598 (2022) |
op_relation |
2040-2244 2408-9354 doi:10.2166/wcc.2021.413 https://doaj.org/article/a9f67f95652843ec903d316ba2a855b2 |
op_rights |
undefined |
op_doi |
https://doi.org/10.2166/wcc.2021.413 |
container_title |
Journal of Water and Climate Change |
container_volume |
13 |
container_issue |
3 |
container_start_page |
1583 |
op_container_end_page |
1598 |
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1766266757017763840 |