干旱区生态环境知识资源中心(Arid): The Connection between Extreme Precipitation Variability over Monsoon Asia and Large-Scale Circulation Patterns

Arid

DOI	10.3390/atmos12111492
	The Connection between Extreme Precipitation Variability over Monsoon Asia and Large-Scale Circulation Patterns
	Khadgarai, Sunilkumar; Kumar, Vinay; Pradhan, Prabodha Kumar
通讯作者	Kumar, V (corresponding author), Texas A&M Univ, Dept Environm Engn, Kingsville, TX 78363 USA.
来源期刊	ATMOSPHERE
EISSN	2073-4433
出版年	2021
卷号	12 期号:11
英文摘要	Spatial and temporal variability in precipitation has been dramatically changed due to climate variability and climate change over the global domain. Increasing in extreme precipitation events are pronounced in various regions, including monsoon Asia (MA) in recent decades. The present study evaluated precipitation variability in light of intensity, duration, and frequency with several extreme precipitation climate change indices developed by the Expert Team on Climate Change Detection Indices (ETCCDI) over the MA region. This study uses an improved version (APHRO_V1901) of the Asian Precipitation Highly Resolved Observation Data Integration Towards Evaluation of extreme events (APHRODITE-2) gridded rainfall product. Results showed that the spatial variability of the extreme precipitation climate change indices is reflected in the annual mean rainfall distribution in MA. Maximum one-day precipitation (R x 1) and precipitation contributed from extremes (R95) depict a peak in decadal mean rainfall values over topography regions. A significant positive trend in R x 1 (with a slope of 0.3 mm/yr) and precipitation greater than the 95th percentile (R95: with a slope of 0.5 mm/yr) are predominantly observed in decadal trends in regional average extreme precipitation climate change indices over MA. Maritime continental countries exhibit an inclined trend in R10, whereas central Asian arid regions show a decreasing tendency in continuous dry days (CDD). The positive trend in R95 is observed over central India, the monsoon region in China, countries that reside over the equator and some parts of Japan, and the Philippines. When comparing the influence of surface temperature (T) and total column water vapor (TCW) on precipitation climate change indices, TCW seems to be a crucial attributor to climate change indices meridional variability. The mutual correlation analysis depicts that precipitation contributed from extremes (R95) strongly correlates in terms of temporal variability with all extreme precipitation indices. Among various global circulation patterns, the prevalent conditions of sea surface temperature (SST) over the equatorial Pacific Ocean have a significant influence on decadal variability in extreme precipitation climate change indices. R10 and R95 possess a relatively significant correlation (0.86 and 0.91) with the Southern Oscillation Index. The maximum number of consecutive dry days (CDD) shows an increasing trend with a positive phase of the North Atlantic Oscillation Index.
英文关键词	climate change indices extreme precipitation APHRODITE monsoon Asia
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000724151400001
WOS关键词	SUMMER MONSOON ; CLIMATE-CHANGE ; EAST-ASIA ; TEMPERATURE ; RAINFALL ; INDEXES ; VALIDATION ; NETWORK ; TRENDS ; SOUTH
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/373770
作者单位	[Khadgarai, Sunilkumar] Minist Earth Sci, Indian Inst Trop Meteorol IITM, Pune 411008, Maharashtra, India; [Kumar, Vinay] Texas A&M Univ, Dept Environm Engn, Kingsville, TX 78363 USA; [Pradhan, Prabodha Kumar] Sri Venkateswara Univ, Dept Phys, Tirupati 517502, Andhra Pradesh, India
推荐引用方式 GB/T 7714	Khadgarai, Sunilkumar,Kumar, Vinay,Pradhan, Prabodha Kumar. The Connection between Extreme Precipitation Variability over Monsoon Asia and Large-Scale Circulation Patterns[J],2021,12(11).
APA	Khadgarai, Sunilkumar,Kumar, Vinay,&Pradhan, Prabodha Kumar.(2021).The Connection between Extreme Precipitation Variability over Monsoon Asia and Large-Scale Circulation Patterns.ATMOSPHERE,12(11).
MLA	Khadgarai, Sunilkumar,et al."The Connection between Extreme Precipitation Variability over Monsoon Asia and Large-Scale Circulation Patterns".ATMOSPHERE 12.11(2021).