干旱区生态环境知识资源中心(Arid): Geospatial assessment of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture in the arid region of Southern Punjab, Pakistan

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DOI	10.2166/wcc.2022.425
	Geospatial assessment of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture in the arid region of Southern Punjab, Pakistan
	Arshad, Sana; Kazmib, Jamil Hasan; Shaikhb, Saima; Fatima, Munazza; Faheema, Zulqadar; Asifa, Muhammad; Arshada, Waqar
通讯作者	Arshad, S
来源期刊	JOURNAL OF WATER AND CLIMATE CHANGE
ISSN	2040-2244
EISSN	2408-9354
出版年	2022
卷号	13 期号:11 页码:4105-4129
英文摘要	This study focuses on the spatiotemporal analysis of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture from 2013 to 2022 in South Punjab, Pakistan. The study uses a unique approach of utilizing a combination of meteorological-based maximum air temperature T-max derived from Modern-Era Retrospective analysis for Research and Applications V.2 (MERRA-2) and remotely sensed land surface temperature (LST) to calculate heatwave metrics. Station-based precipitation (P) and remote sensing-based temperature condition index (TCI) are utilized to calculate droughts. The normalized difference vegetation index (NDVI) and the normalized difference water index (NDWI) are used to analyze the relationship between extreme events with vegetation and soil moisture. The results reveal a significant rise in the region's heatwave frequency, duration, and intensity. Spatiotemporal analysis of the SPI and TCI shows the occurrence of droughts in more heatwave years. Negative Pearson correlation R = 0.5-0.9 and coefficient of determination R-2 of 0.76-0.86 of the NDVI and NDWI with drought and heatwave metrics represents a significant (<0.01) relationship and direct response of vegetation and soil moisture towards extreme events. The study affirms the hydrological vulnerability of arid regions due to extreme events and marks the attention to appropriate mitigation and adaptation strategies in the future.
英文关键词	heatwave metrics normalized difference vegetation index normalized difference water index Pearson correlation standardized precipitation index temperature condition index
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:000885266100001
WOS关键词	HEAT-WAVE ; CLIMATIC EXTREMES ; CHOLISTAN DESERT ; TRENDS ; INDEXES ; PRECIPITATION ; VARIABILITY ; ENVIRONMENT ; IMPACTS ; GROWTH
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/393640
推荐引用方式 GB/T 7714	Arshad, Sana,Kazmib, Jamil Hasan,Shaikhb, Saima,et al. Geospatial assessment of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture in the arid region of Southern Punjab, Pakistan[J],2022,13(11):4105-4129.
APA	Arshad, Sana.,Kazmib, Jamil Hasan.,Shaikhb, Saima.,Fatima, Munazza.,Faheema, Zulqadar.,...&Arshada, Waqar.(2022).Geospatial assessment of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture in the arid region of Southern Punjab, Pakistan.JOURNAL OF WATER AND CLIMATE CHANGE,13(11),4105-4129.
MLA	Arshad, Sana,et al."Geospatial assessment of early summer heatwaves, droughts, and their relationship with vegetation and soil moisture in the arid region of Southern Punjab, Pakistan".JOURNAL OF WATER AND CLIMATE CHANGE 13.11(2022):4105-4129.