气候变化领域集成服务门户(CCPortal): Spatiotemporal variability of vegetation due to drought dynamics (2012–2017): a case study of the Upper Paraíba River basin, Brazil

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DOI	10.1007/s11069-020-03940-x
	Spatiotemporal variability of vegetation due to drought dynamics (2012–2017): a case study of the Upper Paraíba River basin, Brazil
	Ferreira da Silva G.J.; de Oliveira N.M.; Santos C.A.G.; da Silva R.M.
发表日期	2020
ISSN	0921030X
起始页码	939
结束页码	964
卷号	102 期号:3
英文摘要	Abstract: Vegetation indices have been widely used for monitoring the spatiotemporal variables of vegetation and characterizing droughts, primarily in semiarid regions. Drought is a multifaceted natural process that can lead to reduced water availability and can consequently have extensive effects on the socioeconomic, agricultural and development sectors of countries. This study aims to evaluate the spatial–temporal pattern of vegetation as a result of drought dynamics during the last major drought (2012–2017) in the Brazilian semiarid region. Satellite image products from the Moderate Resolution Imaging Spectroradiometer (MOD16, MOD11 and MOD15), standardized precipitation index, rainfall anomaly and vegetation indices were used to monitor and identify drought episodes. To relate vegetation with droughts, the vegetation supply water index was used. The results revealed a strong influence of droughts on vegetation behavior and a strong seasonal pattern of variables in the study area, primarily for land surface temperature, leaf area index and evapotranspiration. These results lead to the conclusion that, based on correlations between vegetation and droughts over a climatological period, it is possible to evaluate the relative roles of vegetation behavior for semiarid regions using MODIS products. Graphic abstract: [Figure not available: see fulltext.] © 2020, Springer Nature B.V.
关键词	Drought monitoring Evapotranspiration Land surface temperature MODIS Semiarid
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/205691
作者单位	Postgraduate Program, Civil and Environmental Engineering/CT/UFPB, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil; Department of Civil and Environmental Engineering, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil; Department of Geosciences, Federal University of Paraíba, João Pessoa, PB 58051-900, Brazil
推荐引用方式 GB/T 7714	Ferreira da Silva G.J.,de Oliveira N.M.,Santos C.A.G.,等. Spatiotemporal variability of vegetation due to drought dynamics (2012–2017): a case study of the Upper Paraíba River basin, Brazil[J],2020,102(3).
APA	Ferreira da Silva G.J.,de Oliveira N.M.,Santos C.A.G.,&da Silva R.M..(2020).Spatiotemporal variability of vegetation due to drought dynamics (2012–2017): a case study of the Upper Paraíba River basin, Brazil.Natural Hazards,102(3).
MLA	Ferreira da Silva G.J.,et al."Spatiotemporal variability of vegetation due to drought dynamics (2012–2017): a case study of the Upper Paraíba River basin, Brazil".Natural Hazards 102.3(2020).