Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China

The Huang-Huai-Hai Plain is an important commercial grain production base in China. Understanding the temporal and spatial variations in precipitation can help prevent drought and flood disasters and ensure food security. Based on the precipitation data for the Huang-Huai-Hai Plain from 1960 to 2019...

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Autores principales:	Minhua Ling, Hongbao Han, Xingling Wei, Cuimei Lv
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	eof huang-huai-hai plain mann–kendall test precipitation barycentre wavelet analysis Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/f0f73a2d36b8418e908ae441ec70d6bb
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spelling	oai:doaj.org-article:f0f73a2d36b8418e908ae441ec70d6bb2021-11-05T19:07:11ZTemporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China2040-22442408-935410.2166/wcc.2021.313https://doaj.org/article/f0f73a2d36b8418e908ae441ec70d6bb2021-09-01T00:00:00Zhttp://jwcc.iwaponline.com/content/12/6/2232https://doaj.org/toc/2040-2244https://doaj.org/toc/2408-9354The Huang-Huai-Hai Plain is an important commercial grain production base in China. Understanding the temporal and spatial variations in precipitation can help prevent drought and flood disasters and ensure food security. Based on the precipitation data for the Huang-Huai-Hai Plain from 1960 to 2019, this study analysed the spatiotemporal distribution of total precipitation at different time scales using the Mann–Kendall test, the wavelet analysis, the empirical orthogonal function (EOF), and the centre-of-gravity model. The results were as follows: (1) The winter precipitation showed a significant upward trend on the Huang-Huai-Hai Plain, while other seasonal trends were not significant. (2) The precipitation on the Huang-Huai-Hai Plain shows a zonal decreasing distribution from southeast to northwest. (3) The application of the EOF method revealed the temporal and spatial distribution characteristics of the precipitation field. The cumulative variance contribution rate of the first two eigenvectors reached 51.5%, revealing two typical distribution fields, namely a ‘global pattern’ and a ‘north-south pattern’. The ‘global pattern’ is the decisive mode, indicating that precipitation on the Huang-Huai-Hai Plain is affected by large-scale weather systems. (4) The annual precipitation barycentres on the Huang-Huai-Hai Plain were located in Jining city and Taian city, Shandong Province, and the spatial distribution pattern was north-south. The annual precipitation barycentres tended to move southwest, but the trend was not obvious. The annual precipitation barycentre is expected to continue to shift to the north in 2020. HIGHLIGHTS Temporal and spatial variation characteristics of total precipitation on the Huang-Huai-Hai Plain.; Two typical distribution fields on the Huang-Huai-Hai Plain.; The shifts of precipitation barycentres on the Huang-Huai-Hai Plain.;Minhua LingHongbao HanXingling WeiCuimei LvIWA Publishingarticleeofhuang-huai-hai plainmann–kendall testprecipitation barycentrewavelet analysisEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENJournal of Water and Climate Change, Vol 12, Iss 6, Pp 2232-2244 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	eof huang-huai-hai plain mann–kendall test precipitation barycentre wavelet analysis Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	eof huang-huai-hai plain mann–kendall test precipitation barycentre wavelet analysis Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Minhua Ling Hongbao Han Xingling Wei Cuimei Lv Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China
description	The Huang-Huai-Hai Plain is an important commercial grain production base in China. Understanding the temporal and spatial variations in precipitation can help prevent drought and flood disasters and ensure food security. Based on the precipitation data for the Huang-Huai-Hai Plain from 1960 to 2019, this study analysed the spatiotemporal distribution of total precipitation at different time scales using the Mann–Kendall test, the wavelet analysis, the empirical orthogonal function (EOF), and the centre-of-gravity model. The results were as follows: (1) The winter precipitation showed a significant upward trend on the Huang-Huai-Hai Plain, while other seasonal trends were not significant. (2) The precipitation on the Huang-Huai-Hai Plain shows a zonal decreasing distribution from southeast to northwest. (3) The application of the EOF method revealed the temporal and spatial distribution characteristics of the precipitation field. The cumulative variance contribution rate of the first two eigenvectors reached 51.5%, revealing two typical distribution fields, namely a ‘global pattern’ and a ‘north-south pattern’. The ‘global pattern’ is the decisive mode, indicating that precipitation on the Huang-Huai-Hai Plain is affected by large-scale weather systems. (4) The annual precipitation barycentres on the Huang-Huai-Hai Plain were located in Jining city and Taian city, Shandong Province, and the spatial distribution pattern was north-south. The annual precipitation barycentres tended to move southwest, but the trend was not obvious. The annual precipitation barycentre is expected to continue to shift to the north in 2020. HIGHLIGHTS Temporal and spatial variation characteristics of total precipitation on the Huang-Huai-Hai Plain.; Two typical distribution fields on the Huang-Huai-Hai Plain.; The shifts of precipitation barycentres on the Huang-Huai-Hai Plain.;
format	article
author	Minhua Ling Hongbao Han Xingling Wei Cuimei Lv
author_facet	Minhua Ling Hongbao Han Xingling Wei Cuimei Lv
author_sort	Minhua Ling
title	Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China
title_short	Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China
title_full	Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China
title_fullStr	Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China
title_full_unstemmed	Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China
title_sort	temporal and spatial distributions of precipitation on the huang-huai-hai plain during 1960–2019, china
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/f0f73a2d36b8418e908ae441ec70d6bb
work_keys_str_mv	AT minhualing temporalandspatialdistributionsofprecipitationonthehuanghuaihaiplainduring19602019china AT hongbaohan temporalandspatialdistributionsofprecipitationonthehuanghuaihaiplainduring19602019china AT xinglingwei temporalandspatialdistributionsofprecipitationonthehuanghuaihaiplainduring19602019china AT cuimeilv temporalandspatialdistributionsofprecipitationonthehuanghuaihaiplainduring19602019china
_version_	1718444076162875392

Temporal and spatial distributions of precipitation on the Huang-Huai-Hai Plain during 1960–2019, China

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