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DOI10.5194/acp-19-10279-2019
The influence of simulated surface dust lofting and atmospheric loading on radiative forcing
Saleeby S.M.; Van Den Heever S.C.; Bukowski J.; Walker A.L.; Solbrig J.E.; Atwood S.A.; Bian Q.; Kreidenweis S.M.; Wang Y.; Wang J.; Miller S.D.
发表日期2019
ISSN16807316
起始页码10279
结束页码10301
卷号19期号:15
英文摘要This high-resolution numerical modeling study investigates the potential range of impact of surface-lofted dust aerosols on the mean radiative fluxes and temperature changes associated with a dust-lofting episode over the Arabian Peninsula (2-5 August 2016). Assessing the potential for lofted dust to impact the radiation budget and temperature response in regions of the world that are prone to intense dust storms is important due to the impact of such temperature perturbations on thermally driven mesoscale circulations such as sea breezes and convective outflows. As such, sensitivity simulations using various specifications of the dust-erodible fraction were performed using two high-resolution mesoscale models that use similar dust-lofting physics based on threshold friction wind velocity and soil characteristics. The dust-erodible fraction, which represents the fraction (0.0 to 1.0) of surface soil that could be mechanically lifted by the wind and controls the location and magnitude of surface dust flux, was varied for three experiments with each model. The Idealized experiments, which used an erodible fraction of 1.0 over all land grid cells, represent the upper limit on dust lofting within each modeling framework, the Ginoux experiments used a 1 the local radiation budget and surface thermal conditions, and the potential dust radiative impacts on thermally driven mesoscale features. © Author(s) 2019.
语种英语
scopus关键词aerosol; air temperature; cooling; dust storm; optical depth; radiation budget; radiative forcing; Arabian Peninsula
来源期刊Atmospheric Chemistry and Physics
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/144215
作者单位Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Naval Research Laboratory, Monterey, CA, United States; Cooperative Institute for Research in the Atmosphere, Fort Collins, CO, United States; Department of Chemical and Biochemical Engineering, Interdisciplinary Graduate Program in Informatics, Center for Global and Regional Environmental Research, University of Iowa, Iowa City, IA, United States
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Saleeby S.M.,Van Den Heever S.C.,Bukowski J.,et al. The influence of simulated surface dust lofting and atmospheric loading on radiative forcing[J],2019,19(15).
APA Saleeby S.M..,Van Den Heever S.C..,Bukowski J..,Walker A.L..,Solbrig J.E..,...&Miller S.D..(2019).The influence of simulated surface dust lofting and atmospheric loading on radiative forcing.Atmospheric Chemistry and Physics,19(15).
MLA Saleeby S.M.,et al."The influence of simulated surface dust lofting and atmospheric loading on radiative forcing".Atmospheric Chemistry and Physics 19.15(2019).
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