Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017JD027258 |
AERONET-Based Nonspherical Dust Optical Models and Effects on the VIIRS Deep Blue/SOAR Over Water Aerosol Product | |
Lee, Jaehwa1,2; Hsu, N. Christina1; Sayer, Andrew M.1,3; Bettenhausen, Corey1,4; Yang, Ping5 | |
2017-10-16 | |
发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
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ISSN | 2169-897X |
EISSN | 2169-8996 |
出版年 | 2017 |
卷号 | 122期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Aerosol Robotic Network (AERONET)-based nonspherical dust optical models are developed and applied to the Satellite Ocean Aerosol Retrieval (SOAR) algorithm as part of the Version 1 Visible Infrared Imaging Radiometer Suite (VIIRS) NASA Deep Blue aerosol data product suite. The optical models are created using Version 2 AERONET inversion data at six distinct sites influenced frequently by dust aerosols from different source regions. The same spheroid shape distribution as used in the AERONET inversion algorithm is assumed to account for the nonspherical characteristics of mineral dust, which ensures the consistency between the bulk scattering properties of the developed optical models and the AERONET-retrieved microphysical and optical properties. For the Version 1 SOAR aerosol product, the dust optical model representative for Capo Verde site is used, considering the strong influence of Saharan dust over the global ocean in terms of amount and spatial coverage. Comparisons of the VIIRS-retrieved aerosol optical properties against AERONET direct-Sun observations at five island/coastal sites suggest that the use of nonspherical dust optical models significantly improves the retrievals of aerosol optical depth (AOD) and Angstrom exponent by mitigating the well-known artifact of scattering angle dependence of the variables, which is observed when incorrectly assuming spherical dust. The resulting removal of these artifacts results in a more natural spatial pattern of AOD along the transport path of Saharan dust to the Atlantic Ocean; that is, AOD decreases with increasing distance transported, whereas the spherical assumption leads to a strong wave pattern due to the spurious scattering angle dependence of AOD. |
英文关键词 | aerosol nonspherical dust VIIRS Deep Blue SOAR |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413675900019 |
WOS关键词 | DIFFERENCE TIME-DOMAIN ; DISCRETE-DIPOLE APPROXIMATION ; SKY RADIANCE MEASUREMENTS ; LIGHT-SCATTERING ; MINERAL DUST ; SATELLITE RETRIEVALS ; RADIATIVE PROPERTIES ; REFRACTIVE-INDEX ; ICE CRYSTALS ; GLOBAL OCEAN |
WOS类目 | Meteorology & Atmospheric Sciences |
WOS研究方向 | Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/32458 |
专题 | 气候变化 |
作者单位 | 1.NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA; 2.Univ Maryland, Earth Syst Sci Interdisciplinary Ctr, College Pk, MD 20742 USA; 3.Univ Space Res Assoc, Goddard Earth Sci Technol & Res, Columbia, MD USA; 4.ADNET Syst Inc, Bethesda, MD USA; 5.Texas A&M Univ, Dept Atmospher Sci, College Stn, TX USA |
推荐引用方式 GB/T 7714 | Lee, Jaehwa,Hsu, N. Christina,Sayer, Andrew M.,et al. AERONET-Based Nonspherical Dust Optical Models and Effects on the VIIRS Deep Blue/SOAR Over Water Aerosol Product[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2017,122(19). |
APA | Lee, Jaehwa,Hsu, N. Christina,Sayer, Andrew M.,Bettenhausen, Corey,&Yang, Ping.(2017).AERONET-Based Nonspherical Dust Optical Models and Effects on the VIIRS Deep Blue/SOAR Over Water Aerosol Product.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,122(19). |
MLA | Lee, Jaehwa,et al."AERONET-Based Nonspherical Dust Optical Models and Effects on the VIIRS Deep Blue/SOAR Over Water Aerosol Product".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 122.19(2017). |
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