Sub-basin scale dust source geomorphology detected using MODIS

被引：131

作者：

Bullard, Joanna ^{[1
]}

Baddock, Matthew ^{[1
]}

McTainsh, Grant ^{[3
]}

Leys, John ^{[2
]}

机构：

[1] Univ Loughborough, Dept Geog, Loughborough LE11 3TU, Leics, England

[2] Dept Environm & Climate Change, Gunnedah, NSW 2380, Australia

[3] Griffith Univ, Griffith Sch Environm, Australian Rivers Inst, Brisbane, Qld 4111, Australia

来源：

GEOPHYSICAL RESEARCH LETTERS | 2008年 / 35卷 / 15期

关键词：

D O I：

10.1029/2008GL033928

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The spatial and temporal variability of dust emissions from different surfaces in the Lake Eyre Basin, Australia is determined using MODIS data. For 2003-6 the sources of 529 dust plumes were classified: overall 37% of plumes originated in areas of aeolian deposits, 30% from alluvial deposits and floodplains and 29% from ephemeral lakes or playas. At this sub-basin scale, the relative importance of different dust source geomorphologies varied primarily in response to sediment supply and availability and was not related to aeolian transport capacity, suggesting the Lake Eyre Basin is a supply-limited system.

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页数：6

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