气候变化领域集成服务门户(CCPortal): A new approach for a drought composite index

CCPortal

DOI	10.1007/s11069-021-04704-x
	A new approach for a drought composite index
	Bravo R.Z.B.; Cunha A.P.M.A.; Leiras A.; Cyrino Oliveira F.L.
发表日期	2021
ISSN	0921030X
起始页码	755
结束页码	773
卷号	108 期号:1
英文摘要	Drought is one of the most critical meteorological hazards that has a devastating effect on natural habitats, ecosystems, and many economic and social sectors. Due to these severe impacts of drought events, many studies have focused on drought monitoring, prediction, and risk analysis to aid drought preparedness plans and mitigation measures. This paper presents a new drought composite index (DCI) to measure the intensity and frequency of the hazard component of meteorological drought. The DCI considers multiple indicators, such as precipitation, temperature, evapotranspiration, wind speed, relative humidity, and sunshine duration. The DCI is validated through an application to the Brazilian semiarid context. Based on the expert's opinion, we define the weight of each indicator using the analytical hierarchy process. The results were compared with two other drought indices to provide an initial validation because the other indices are not exclusively meteorological indices. The DCI estimates for January 2019 show that the semiarid central region is the most critical. The findings also indicate that the drought intensity is growing in this region. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
关键词	AHP Brazil Composite index Drought Hazard
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206126
作者单位	Department of Industrial Engineering, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil; National Center for Monitoring and Early Warnings of Natural Disasters – CEMADEN, São José Dos Campos, Brazil
推荐引用方式 GB/T 7714	Bravo R.Z.B.,Cunha A.P.M.A.,Leiras A.,et al. A new approach for a drought composite index[J],2021,108(1).
APA	Bravo R.Z.B.,Cunha A.P.M.A.,Leiras A.,&Cyrino Oliveira F.L..(2021).A new approach for a drought composite index.Natural Hazards,108(1).
MLA	Bravo R.Z.B.,et al."A new approach for a drought composite index".Natural Hazards 108.1(2021).