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DOI	10.1038/s41598-024-68534-0
	Multifractal characterization of meteorological to agricultural drought propagation over India
	Pachore, Akshay Bajirao; Remesan, Renji; Kumar, Rohini
通讯作者	Remesan, R
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2024
卷号	14 期号:1
英文摘要	Agricultural drought affects the regional food security and thus understanding how meteorological drought propagates to agricultural drought is crucial. This study examines the temporal scaling trends of meteorological and agricultural drought data over 34 Indian meteorological sub-divisions from 1981 to 2020. A maximum Pearson's correlation coefficient (MPCC) derived between multiscale Standardised Precipitation Index (SPI) and monthly Standardised Soil Moisture Index (SSMI) time series was used to assess the seasonal as well as annual drought propagation time (DPT). The multifractal characteristics of the SPI time series at a time scale chosen from propagation analysis as well as the SSMI-1 time series were further examined using Multifractal Detrended Fluctuation Analysis (MF-DFA). Results reveal longer average annual DPT in arid and semi-arid regions like Saurashtra and Kutch (similar to 6 months), Madhya Maharashtra (similar to 5 months), and Western Rajasthan (similar to 6 months), whereas, humid regions like Arunachal Pradesh, Assam and Meghalaya, and Kerala exhibit shorter DPT (similar to 2 months). The Hurst Index values greater/less than 0.5 indicates the existence of long/short-term persistence (LTP/STP) in the SPI and SSMI time series. The results of our study highlights the inherent connection among drought propagation time, multifractality, and regional climate variations, and offers insights to enhance drought prediction systems in India.
英文关键词	Drought propagation time SPI-n SSMI-1 Meteorological drought Agricultural drought Multifractality MF-DFA
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:001294096300078
WOS关键词	DETRENDED FLUCTUATION ANALYSIS ; TIME-SERIES ; STREAMFLOW ; INDEX ; RAINFALL
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/405563
推荐引用方式 GB/T 7714	Pachore, Akshay Bajirao,Remesan, Renji,Kumar, Rohini. Multifractal characterization of meteorological to agricultural drought propagation over India[J],2024,14(1).
APA	Pachore, Akshay Bajirao,Remesan, Renji,&Kumar, Rohini.(2024).Multifractal characterization of meteorological to agricultural drought propagation over India.SCIENTIFIC REPORTS,14(1).
MLA	Pachore, Akshay Bajirao,et al."Multifractal characterization of meteorological to agricultural drought propagation over India".SCIENTIFIC REPORTS 14.1(2024).