DOI: 10.1007/s11069-021-04704-x
论文题名: A new approach for a drought composite index
作者: Bravo R.Z.B. ; Cunha A.P.M.A. ; Leiras A. ; Cyrino Oliveira F.L.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期: 1 起始页码: 755
结束页码: 773
语种: 英语
中文关键词: AHP
; Brazil
; Composite index
; Drought
; Hazard
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. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168925
Appears in Collections: 气候变化与战略
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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
Recommended Citation:
Bravo R.Z.B.,Cunha A.P.M.A.,Leiras A.,et al. A new approach for a drought composite index[J]. Natural Hazards,2021-01-01,108(1)