Details:

Journal Title:
Geophysical Research Letters
Personal Author:
Baddock, Matthew C. ; Ginoux, Paul ; Bullard, Joanna E. ; Gill, Thomas E.
Baddock, Matthew C. ; Ginoux, Paul ; Bullard, Joanna E. ; Gill, Thomas E. Less -
NOAA Program & Office:
OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CREST (Center for Earth System Sciences and Remote Sensing Technologies and Tech Center at City College of CUNY) ; NCAS (Center for Atmospheric Science at Howard University)
OAR (Oceanic and Atmospheric Research) ; GFDL (Geophysical Fluid Dynamics Laboratory) ; CREST (Center for Earth System Sciences and Remote Sensing Technologies and Tech Center at City College of CUNY) ; NCAS (Center for Atmospheric Science at Howard University) Less -
Description:
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.
Keywords:
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Aerosols
Dust
Geomorphology
MODIS

Source:
Geophys. Res. Lett., 43, 2606– 2613
DOI:
https://doi.org/10.1002/2015GL067327
Document Type:
Journal Article
Funding:
Grant no. NA17AE1623 ; Grant no. NA17AE1625
Grant no. NA17AE1623 ; Grant no. NA17AE1625 Less -
Rights Information:
Other
Compliance:
Submitted
Main Document Checksum:
[+]
urn:sha256:2730284c2b4fbf7170d6b19c4773ff30d9106d8acc599f7b88ceabea20484dad
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