Preferential dust sources: A geomorphological classification designed for use in global dust-cycle models
Bullard, JE (Bullard, Joanna E.)1; Harrison, SP (Harrison, Sandy P.)2,3; Baddock, MC (Baddock, Matthew C.)4; Drake, N (Drake, Nick)5; Gill, TE (Gill, Thomas E.)6; McTainsh, G (McTainsh, Grant)7; Sun, YB (Sun, Youbin)8
2011-12-24
发表期刊JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
卷号116页码:F04034
文章类型期刊论文
摘要

We present a simple theoretical land-surface classification that can be used to determine the location and temporal behavior of preferential sources of terrestrial dust emissions. The classification also provides information about the likely nature of the sediments, their erodibility and the likelihood that they will generate emissions under given conditions. The scheme is based on the dual notions of geomorphic type and connectivity between geomorphic units. We demonstrate that the scheme can be used to map potential modern-day dust sources in the Chihuahuan Desert, the Lake Eyre Basin and the Taklamakan. Through comparison with observed dust emissions, we show that the scheme provides a reasonable prediction of areas of emission in the Chihuahuan Desert and in the Lake Eyre Basin. The classification is also applied to point source data from the Western Sahara to enable comparison of the relative importance of different land surfaces for dust emissions. We indicate how the scheme could be used to provide an improved characterization of preferential dust sources in global dust-cycle models.

DOI10.1029/2011JF002061
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/10350
专题黄土与第四纪地质国家重点实验室(2010~)
通讯作者Bullard, JE (Bullard, Joanna E.)1; Sun, YB (Sun, Youbin)8
作者单位1.Department of Geography, Loughborough University, Loughborough,UK;
2.School of Geographical Sciences, University of Bristol, Bristol, UK;
3.School of Biological Sciences, Macquarie University, North Ryde,New South Wales, Australia;
4.Department of Environmental Sciences, University of Virginia,Charlottesville, Virginia, USA;
5.Department of Geography, King’s College London, London, UK;
6.Department of Geological Sciences, University of Texas at El Paso,El Paso, Texas, USA;
7.Griffith School of Environment, Griffith University, Brisbane,Queensland, Australia;
8.Institute of Earth Environment, Chinese Academy of Sciences, Xi’an,China
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Bullard, JE ,Harrison, SP ,Baddock, MC ,et al. Preferential dust sources: A geomorphological classification designed for use in global dust-cycle models[J]. JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,2011,116:F04034.
APA Bullard, JE .,Harrison, SP .,Baddock, MC .,Drake, N .,Gill, TE .,...&Sun, YB .(2011).Preferential dust sources: A geomorphological classification designed for use in global dust-cycle models.JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE,116,F04034.
MLA Bullard, JE ,et al."Preferential dust sources: A geomorphological classification designed for use in global dust-cycle models".JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE 116(2011):F04034.
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