DOI: 10.1002/2015GL067327
论文题名: Do MODIS-defined dust sources have a geomorphological signature?
作者: Baddock M.C. ; Ginoux P. ; Bullard J.E. ; Gill T.E.
刊名: Geophysical Research Letters
ISSN: 0094-9234
EISSN: 1944-8965
出版年: 2016
卷: 43, 期: 6 起始页码: 2606
结束页码: 2613
语种: 英语
英文关键词: aerosol
; dust
; geomorphology
; MODIS
Scopus关键词: Aerosols
; Geomorphology
; Image reconstruction
; Landforms
; Radiometers
; Satellite imagery
; Supercomputers
; Conceptual model
; Dust emission
; Dust sources
; Moderate resolution imaging spectroradiometer
; MODIS
; Quantitative measurement
; Surface dynamics
; Surface emissivity
; Dust
; aerosol
; conceptual framework
; dust
; emission inventory
; emissivity
; geomorphological mapping
; loading
; measurement method
; MODIS
; prediction
; satellite sensor
; Chihuahuan Desert
英文摘要: The preferential dust source (PDS) scheme enables large-scale mapping of geomorphology in terms of importance for dust emissions but has not been independently tested other than at local scales. We examine the PDS qualitative conceptual model of surface emissivity alongside a quantitative measurement of dust loading from Moderate Resolution Imaging Spectroradiometer (MODIS) Deep Blue Collection 6 for the Chihuahuan Desert. The predicted ranked importance of each geomorphic type for dust emissions is compared with the actual ranked importance as determined from the satellite-derived dust loading. For this region, the predicted variability and magnitude of dust emissions from most surface types present coincides with the observed characteristics demonstrating the significance of geomorphological controls on emission. The exception is for areas of low magnitude but persistent emissions such as alluvial surfaces where PDS overpredicts dustiness. As PDS is a good predictor of emissions and incorporates surface dynamics it could improve models of future dust emissions. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977963083&doi=10.1002%2f2015GL067327&partnerID=40&md5=a9c1f6ee33220639f5a162a33a46466f
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10197
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Geography, Loughborough University, Loughborough, United Kingdom
Recommended Citation:
Baddock M.C.,Ginoux P.,Bullard J.E.,et al. Do MODIS-defined dust sources have a geomorphological signature?[J]. Geophysical Research Letters,2016-01-01,43(6).