干旱区生态环境知识资源中心(Arid): Meteorological Influence of Mineral Dust Distribution Over South-Western Africa Deserts Using Reanalysis and Satellite Data

Arid

DOI	10.3389/fenvs.2022.856438
	Meteorological Influence of Mineral Dust Distribution Over South-Western Africa Deserts Using Reanalysis and Satellite Data
	Shikwambana, Lerato; Kganyago, Mahlatse
通讯作者	Shikwambana, L
来源期刊	FRONTIERS IN ENVIRONMENTAL SCIENCE
EISSN	2296-665X
出版年	2022
卷号	10
英文摘要	This study investigated the meteorological influence of mineral dust in the south-western African region using satellite and reanalysis datasets by studying 1) the seasonal transport and distribution of mineral dust in the region; 2) the relationship between precipitation, wind and desert dust, and 3) the long-term trends of dust column density, precipitation rate and surface wind speed. The results show that the Namib desert is the main source of dust in the region, with the density and distribution varying by seasons. The study found that the greatest dust distribution occurs in the June-July-August (JJA) season, attributed to the southwesterly winds which transport the dust into the interior of the region. Moreover, small dust aerosols less that 20 mu m are observed at highest altitudes between 7 and 10.28 km. Favourable meteorological such as strong and fast winds and low precipitation, and low vegetation played a vital role in the production and distribution of dust aerosols. Over a long time (i.e., from 1990 to 2020), dust column density trend increased, while precipitation and surface wind speed trends decreased. This study provides significant basis for assessing and monitoring of the desertification processes and their effect on regional climate variability and change in Southwest Africa, where data is ground-based data is scarce and related efforts are rare.
英文关键词	dust aerosols dust-extinction CALIPSO wind MODIS NDVI
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000823007300001
WOS关键词	MEASURING MISSION TRMM ; AEROSOL OPTICAL DEPTH ; LONG-RANGE TRANSPORT ; GLOBAL DISTRIBUTION ; WIND EROSION ; CLIMATE ; IMPACT ; LIDAR ; VERSION ; SCATTERING
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392754
推荐引用方式 GB/T 7714	Shikwambana, Lerato,Kganyago, Mahlatse. Meteorological Influence of Mineral Dust Distribution Over South-Western Africa Deserts Using Reanalysis and Satellite Data[J],2022,10.
APA	Shikwambana, Lerato,&Kganyago, Mahlatse.(2022).Meteorological Influence of Mineral Dust Distribution Over South-Western Africa Deserts Using Reanalysis and Satellite Data.FRONTIERS IN ENVIRONMENTAL SCIENCE,10.
MLA	Shikwambana, Lerato,et al."Meteorological Influence of Mineral Dust Distribution Over South-Western Africa Deserts Using Reanalysis and Satellite Data".FRONTIERS IN ENVIRONMENTAL SCIENCE 10(2022).