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Arid

DOI	10.1016/j.jafrearsci.2022.104745
	How has aridity changed over West Africa in the past four decades?
	Daramola, Mojolaoluwa Toluwalase; Eresanya, Emmanuel Olaoluwa; Erhabor, Stephen Chibuike
通讯作者	Daramola, MT
来源期刊	JOURNAL OF AFRICAN EARTH SCIENCES
ISSN	1464-343X
EISSN	1879-1956
出版年	2023
卷号	197
英文摘要	Notable dryland expansion from changes in global aridity has been documented in previous studies, particularly with the increase in global mean temperature. Here, we examined the changes in the aridity of the western region of Africa over the past four decades. Using the aridity index (P/PET) as an indicator, the Climate Research Unit (CRU TS) data was used to identify drying and wetting areas of the region. The result showed that intense warming of 0.018 degrees C per year has occurred which was more evident in the last two decades. The warming in the past two decades caused a significant increase in PET. The first two decades were the driest compared to the last decades, particularly the first decade which also had major drought occurrences across the region. The aridity index increased by 0.86 (x10-3) per year within the past four decades, with the greatest change at the semi-arid zone. Result showed that precipitation exerts dominant control on aridity changes in the region despite a sig-nificant increase in PET. This was evident in the expansion of the wet areas between 2000 and 2019 compared to the 1979-1998 period.
英文关键词	Warming climate Drying Wetting Arid zones Trends West Africa
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000888054900003
WOS关键词	CLIMATE-CHANGE ; GLOBAL DRYLANDS ; TREND ANALYSIS ; VARIABILITY ; DROUGHT ; INDEX ; BASIN ; DESERTIFICATION ; AREAS
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397097
推荐引用方式 GB/T 7714	Daramola, Mojolaoluwa Toluwalase,Eresanya, Emmanuel Olaoluwa,Erhabor, Stephen Chibuike. How has aridity changed over West Africa in the past four decades?[J],2023,197.
APA	Daramola, Mojolaoluwa Toluwalase,Eresanya, Emmanuel Olaoluwa,&Erhabor, Stephen Chibuike.(2023).How has aridity changed over West Africa in the past four decades?.JOURNAL OF AFRICAN EARTH SCIENCES,197.
MLA	Daramola, Mojolaoluwa Toluwalase,et al."How has aridity changed over West Africa in the past four decades?".JOURNAL OF AFRICAN EARTH SCIENCES 197(2023).