气候变化领域集成服务门户(CCPortal): Spatiotemporal characterization of heatwaves on an urban center using satellite-based estimates

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DOI	10.1007/s00704-024-05026-1
	Spatiotemporal characterization of heatwaves on an urban center using satellite-based estimates
	Banjara, Prabhat; Bhattarai, Saurav; Pandey, Vishnu Prasad; Talchabhadel, Rocky
发表日期	2024
ISSN	0177-798X
EISSN	1434-4483
英文摘要	Climate variability, climate change, and anthropogenic disturbances increase the likelihood and intensity of heatwaves. Urban centers, characterized by dense populations, are experiencing a growing impact from these heatwaves. A comprehensive understanding of the spatiotemporal characteristics of heatwaves is essential for proposing effective mitigation strategies. This study utilizes land surface temperature datasets from 2003 to 2020 to characterize spatial and temporal variability of heatwaves across the Kathmandu Valley, Nepal, and identify regions and periods with high heat hazards, exposure, and risks. Regions with high heatwave hazards are identified based on frequency, duration, and magnitude of heatwaves for daytime, nighttime, average of daytime and nighttime, and a combination of both conditions. Additionally, vulnerability is assessed based on demographic distribution. Heatwave Risk Index is computed by superimposing composite heatwave index and vulnerability. Through geospatial analysis, our study identifies distinct regions and time periods characterized by varying levels of heatwave severity and associated risks to diverse population distributions. In recent years, there has been a notable increase in the prevalence of extreme heatwave conditions, particularly after 2010 and especially from 2012 onwards. Importantly, this trend is more pronounced in nighttime temperature data, highlighting discomfort during the night when the body requires rest and recovery. Our findings emphasize the crucial need for policies tailored to urban environments, addressing factors related to the built environment factors, societal stresses, and vulnerabilities. These policies are essential for enhancing systematic preparedness in response to the challenges posed by a changing climate.
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:001234553300002
来源期刊	THEORETICAL AND APPLIED CLIMATOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/288888
作者单位	Tribhuvan University; Institute of Engineering (IOE) - Nepal; Jackson State University
推荐引用方式 GB/T 7714	Banjara, Prabhat,Bhattarai, Saurav,Pandey, Vishnu Prasad,et al. Spatiotemporal characterization of heatwaves on an urban center using satellite-based estimates[J],2024.
APA	Banjara, Prabhat,Bhattarai, Saurav,Pandey, Vishnu Prasad,&Talchabhadel, Rocky.(2024).Spatiotemporal characterization of heatwaves on an urban center using satellite-based estimates.THEORETICAL AND APPLIED CLIMATOLOGY.
MLA	Banjara, Prabhat,et al."Spatiotemporal characterization of heatwaves on an urban center using satellite-based estimates".THEORETICAL AND APPLIED CLIMATOLOGY (2024).