DOI: 10.1002/grl.50968
论文题名: A sub-basin scale dust plume source frequency inventory for southern Africa, 2005-2008
作者: Vickery K.J. ; Eckardt F.D. ; Bryant R.G.
刊名: Geophysical Research Letters
ISSN: 0094-8510
EISSN: 1944-8241
出版年: 2013
卷: 40, 期: 19 起始页码: 5274
结束页码: 5279
语种: 英语
英文关键词: dust souces
; Southern Africa
Scopus关键词: Distinct points
; Frequency data
; Frequency map
; Meteosat second generations
; Moderate resolution imaging spectroradiometer
; Southern Africa
; Sub-basin scale
; Thermal infrared
; Radiometers
; Satellite imagery
; Dust
; basin analysis
; data acquisition
; dust
; frequency analysis
; infrared imagery
; Meteosat
; plume
; tracking
; Africa
英文摘要: We present a dust plume source inventory for southern Africa. In order to locate and track the local, short-lived plume events, source and frequency data have been derived from Meteosat Second Generation (MSG) thermal infrared composite data (4 km data using 8.7, 10.8, and 12.0 μm) and Moderate Resolution Imaging Spectroradiometer (MODIS) visible composite data (0.25 km data utilizing 0.620 - 0.670 μm, 0.545 - 0.565 μm, and 0.459 - 0.479 μm). Between January 2005 and December 2008, a total of 328 distinct daytime dust plumes more than 10 km in length were detected. These plumes were attributed to 101 distinct point sources, consisting largely of ephemeral inland lakes, coastal pans as well as dry river valleys in Namibia, Botswana, and South Africa. These data also provided sub-basin scale source observations for large basins such as Etosha and Makgadikgadi Pans. Key Points A dust plume source and frequency map of southern Africa is presented ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884877031&doi=10.1002%2fgrl.50968&partnerID=40&md5=23ee16123b86a566de4ddffe25a59b2d
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5774
Appears in Collections: 气候减缓与适应
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作者单位: Department of Environmental and Geographical Science, University of Cape Town, Cape Town, Rondebosch 7701, South Africa
Recommended Citation:
Vickery K.J.,Eckardt F.D.,Bryant R.G.. A sub-basin scale dust plume source frequency inventory for southern Africa, 2005-2008[J]. Geophysical Research Letters,2013-01-01,40(19).