TY - JOUR
T1 - The contribution of dust devils and dusty plumes to the aerosol budget in western China
AU - Han, Yongxiang
AU - Wang, Kanghong
AU - Liu, Feng
AU - Zhao, Tianliang
AU - Yin, Yan
AU - Duan, Jiapeng
AU - Luan, Zhaopeng
N1 - Funding Information:
This study has been co-supported by the National Natural Science Foundation of China ( 41375158 ; 41030962 ). We would also like to thank all reviewers for their helpful comments and suggestions, which have led to improvements of this paper. Any opinions, findings, and conclusion or recommendations expressed in this material are those of the authors and do not necessarily reflect the view of the Nanjing University of Information Science and Technology, University of Illinois at Urban-Champaign, or any organizations and governmental agencies.
Publisher Copyright:
© 2015 Published by Elsevier Ltd.
Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 2016/2/1
Y1 - 2016/2/1
N2 - Based on thermodynamic theory and comprehensive analyses of the Total Ozone Mapping Spectrometer Aerosol Index, surface micro-pulse LiDAR, meteorological elements in the atmospheric boundary layer, observations of sporadic dust devil, the diurnal and seasonal changes of dust devil are characterized, the contribution to the aerosol budget from dust devils and dusty plumes is quantitatively analyzed. The results show that: 1) dust devils and dusty plumes show obvious diurnal and seasonal variations with a single-peaked distribution; 2) thermodynamic efficiency can effectively account for the daily variations of dust devils and dusty plumes from morning to early afternoon, seasonal changes of dust devil activity in summer. The future improved thermodynamic efficiency could be applied to their parameterization; 3) dust devils and dusty plumes may contribute more than 53% of annual total dust aerosols over desert regions in western China,but the calculated contributions have uncertainties. It will be helpful to understand the dust devil and dusty plume contributions to global and regional aerosol loading.
AB - Based on thermodynamic theory and comprehensive analyses of the Total Ozone Mapping Spectrometer Aerosol Index, surface micro-pulse LiDAR, meteorological elements in the atmospheric boundary layer, observations of sporadic dust devil, the diurnal and seasonal changes of dust devil are characterized, the contribution to the aerosol budget from dust devils and dusty plumes is quantitatively analyzed. The results show that: 1) dust devils and dusty plumes show obvious diurnal and seasonal variations with a single-peaked distribution; 2) thermodynamic efficiency can effectively account for the daily variations of dust devils and dusty plumes from morning to early afternoon, seasonal changes of dust devil activity in summer. The future improved thermodynamic efficiency could be applied to their parameterization; 3) dust devils and dusty plumes may contribute more than 53% of annual total dust aerosols over desert regions in western China,but the calculated contributions have uncertainties. It will be helpful to understand the dust devil and dusty plume contributions to global and regional aerosol loading.
KW - ISWS
KW - Dust devil
KW - Thermodynamic efficiency
KW - Dusty plumes
KW - Dust aerosol
KW - Variation characteristics
KW - Contribution rate
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U2 - 10.1016/j.atmosenv.2015.11.025
DO - 10.1016/j.atmosenv.2015.11.025
M3 - Article
SN - 1352-2310
VL - 126
SP - 21
EP - 27
JO - Atmospheric Environment
JF - Atmospheric Environment
ER -