干旱区生态环境知识资源中心(Arid): Reduction in Precipitation Seasonality in China from 1960 to 2018

Arid

DOI	10.1175/JCLI-D-21-0324.1
	Reduction in Precipitation Seasonality in China from 1960 to 2018
	MAO, Y. U. N. A.; WU, G. U. O. C. A. N.; XU, G. U. A. N. G. Z. H. I.; WANG, K. A. I. C. U. N.
通讯作者	Wang, KC
来源期刊	JOURNAL OF CLIMATE
ISSN	0894-8755
EISSN	1520-0442
出版年	2022
卷号	35 期号:1 页码:227-248
英文摘要	Changes in precipitation seasonality or the distribution of precipitation have important impacts on hydrological extremes (e.g., floods or droughts). Precipitation extremes have been widely reported to increase with global warming; however, the variability and mechanism of precipitation seasonality have not been well quantified in China. Here, we explore the multiscale variability in precipitation seasonality from 1960 to 2018 in China. A seasonality index of precipitation is defined to quantify the precipitation seasonality with a lower value indicating a more even distribution throughout a year. The seasonality index increases from southeastern to northwestern China, with a decrease in the annual mean precipitation, a later timing of the wet season, and a shorter wet season duration. The seasonality index decreases from 1960 to 2018 in China, accompanied by the increasing duration of wet season, especially in northern climate-sensitive basins, such as the Northwest River, Hai River, and Songliao River basins. In the Northwest River basin, for example, the observed significant decrease in the seasonality index (similar to 0.02 decade(-1)) from 1960 to 2018 is consistent with a significant decrease in the ratio of annual maximum 10-day precipitation to annual precipitation, which is confirmed by their significant positive correlation (R = 0.72;p = 0). El Nifio-Southem Oscillation (ENSO) dominates interannual fluctuations and spatial patterns of precipitation seasonality in China. In El Nino years, the precipitation seasonality index decreases across China except for the Yangtze River basin, with broad increases in annual precipitation.
英文关键词	Precipitation Atmosphere-land interaction Surface observations
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000787141800014
WOS关键词	NINO-SOUTHERN-OSCILLATION ; DAILY EXTREME PRECIPITATION ; ASIAN SUMMER MONSOON ; RAINFALL SEASONALITY ; CLIMATE-CHANGE ; EL-NINO ; HEAVY PRECIPITATION ; WATER CYCLE ; ARID REGION ; ANTHROPOGENIC AEROSOLS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393385
推荐引用方式 GB/T 7714	MAO, Y. U. N. A.,WU, G. U. O. C. A. N.,XU, G. U. A. N. G. Z. H. I.,et al. Reduction in Precipitation Seasonality in China from 1960 to 2018[J],2022,35(1):227-248.
APA	MAO, Y. U. N. A.,WU, G. U. O. C. A. N.,XU, G. U. A. N. G. Z. H. I.,&WANG, K. A. I. C. U. N..(2022).Reduction in Precipitation Seasonality in China from 1960 to 2018.JOURNAL OF CLIMATE,35(1),227-248.
MLA	MAO, Y. U. N. A.,et al."Reduction in Precipitation Seasonality in China from 1960 to 2018".JOURNAL OF CLIMATE 35.1(2022):227-248.