干旱区生态环境知识资源中心(Arid): Recent changes in global dryland temperature and precipitation

Arid

DOI	10.1002/joc.7301
	Recent changes in global dryland temperature and precipitation
	Daramola, Mojolaoluwa Toluwalase; Xu, Ming
通讯作者	Xu, M (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China.
来源期刊	INTERNATIONAL JOURNAL OF CLIMATOLOGY
ISSN	0899-8418
EISSN	1097-0088
出版年	2021-09
英文摘要	Changes in dryland temperature and precipitation are essential components of dryland climate change. This study applies the use of the monthly reanalysis data product of ERA5, which has a spatial resolution of 0.25 degrees, to investigate the changes in the dryland climate between 1979 and 2018. The result revealed warming and drying of the drylands in recent decades, most notably in the current decade. The general global dryland temperature and precipitation increased and decreased significantly (0.01 significance level) at the rate of 0.032 degrees C center dot year(-1) and 0.074 mm center dot month(-1)center dot year(-1), respectively, in the last 40 years. Although precipitation generally decreased over the drylands, summer precipitation increased over southern Africa and Australia as well as northern Africa and south Asia dryland areas. Variation in the warming rate over the dryland zones at different periods was also observed. The semiarid and dry subhumid warmed continually from the first decade (0.02 degrees C center dot year(-1) and 0.017 degrees C center dot year(-1)) to the fourth decade (0.077 degrees C center dot year(-1) and 0.065 degrees C center dot year(-1), respectively), while the hyperarid warmed at a slower rate in the last two decades compared to the prior decades. More intense warming was also observed in the areas where precipitation decreased, suggesting the effect of reduced evaporative cooling. These changes have implications on the dryland environment, such as aridity changes, which could affect the sustainable development of the areas through the corresponding impact on the ecosystem.
英文关键词	arid zones decadal variation drying trends warming rate wetting
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691663500001
WOS关键词	ARCTIC SEA-ICE ; CLIMATE-CHANGE ; ARIDITY INDEX ; COLD WINTERS ; VEGETATION ; EVAPORATION ; FEEDBACKS ; TRENDS ; AREAS
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363626
作者单位	[Daramola, Mojolaoluwa Toluwalase; Xu, Ming] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, 11A Datun Rd, Beijing 100101, Peoples R China; [Daramola, Mojolaoluwa Toluwalase; Xu, Ming] Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Daramola, Mojolaoluwa Toluwalase,Xu, Ming. Recent changes in global dryland temperature and precipitation[J]. 中国科学院地理科学与资源研究所,2021.
APA	Daramola, Mojolaoluwa Toluwalase,&Xu, Ming.(2021).Recent changes in global dryland temperature and precipitation.INTERNATIONAL JOURNAL OF CLIMATOLOGY.
MLA	Daramola, Mojolaoluwa Toluwalase,et al."Recent changes in global dryland temperature and precipitation".INTERNATIONAL JOURNAL OF CLIMATOLOGY (2021).