Characterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performance

Simple item page
dc.contributor.authorTao, Minghui
dc.contributor.authorWang, Jun
dc.contributor.authorLi, Rong
dc.contributor.authorChen, Liangfu
dc.contributor.authorXu, Xiaoguang
dc.contributor.authorWang, Lunche
dc.contributor.authorTao, Jinhua
dc.contributor.authorWang, Zifeng
dc.contributor.authorXiang, Juan
dc.date.accessioned2020-08-06T20:15:29Z
dc.date.available2020-08-06T20:15:29Z
dc.date.issued2020-06-01
dc.description.abstractThe lack of aerosol type information has largely hindered satellite products from further applications such as constraining model simulations and quantifying aerosol climate effects. The recent Version (V) 23 Multi‐angle Imaging Spectroradiometer (MISR) aerosol products with an enhanced spatial resolution at 4.4 km enable an unprecedented chance to explore aerosol types and associated processes in the regional scale. Here we provide a comprehensive insight into the characterization of MISR aerosol optical and microphysical properties, as well as their performance, over East Asia. Ground validation shows a remarkable improvement in the accuracy of V23 MISR aerosol optical depth (AOD) with ~80% of its retrieval bias within ±(0.05 + 20%AODAERONET). However, an underestimation of MISR AOD is still prevalent in the high‐AOD (>0.6) conditions, due to the surface‐atmosphere separation problem and insufficient absorbing aerosol mixtures being selected. MISR AOD of different size bins agrees well with AErosol RObotic NETwork (AERONET) results, demonstrating an evident advantage in discriminating natural dust from anthropogenic particles. Although MISR nonspherical and absorbing retrievals display a consistent variation with the AERONET inversions, their component AODs have a poor reliability over East Asia due to the inappropriate aerosol component models or their mixtures as in V22. In particular, the most striking problem is the sparse and discrete MISR absorbing retrievals with spatial discontinuity. Generally, the high‐resolution V23 MISR products exhibit a great potential in characterizing the regional variations of aerosol type, which can be further refined by considering the prior aerosol knowledge over East Asia.en_US
dc.description.sponsorshipThis study was supported by NationalScience Found ation of China (Grants41830109, 41871262, and 41601472). J.Wang's participation is made possiblethrough the inkind support from theUniversity of Iowa. We thank the MISRaerosol team (https://misr.jpl.nasa.gov)for the data used in our work. Weacknowledge AERONET site PIs (B. N.Holben, H. Chen, L. Wu, R. Ma, J. E.Nichol, P. Wang, X. Xia, and Z. Li) forproviding the aerosol data availableen_US
dc.description.urihttps://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JD031909en_US
dc.format.extent16 pagesen_US
dc.genrejournal articlesen_US
dc.identifierdoi:10.13016/m2v6rl-izz8
dc.identifier.citationTao, Minghui; Wang, Jun; Li, Rong; Chen, Liangfu; Xu, Xiaoguang; Wang, Lunche; Tao, Jinhua; Wang, Zifeng; Xiang, Juan; Characterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performance; JGR Atmospheres 125,12 (2020); https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2019JD031909en_US
dc.identifier.urihttps://doi.org/10.1029/2019JD031909
dc.identifier.urihttp://hdl.handle.net/11603/19369
dc.language.isoen_USen_US
dc.publisherAmerican Geophysical Unionen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Physics Department Collection
dc.relation.ispartofUMBC Faculty Collection
dc.relation.ispartofUMBC Joint Center for Earth Systems Technology (JCET)
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rights©2020. American Geophysical Union. All Rights Reserved
dc.rightsAccess to this item will begin on 2020-12-01
dc.titleCharacterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performanceen_US
dc.typeTexten_US

Files

Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
2019JD031909.pdf
Size:
31.89 MB
Format:
Adobe Portable Document Format
Description:
Characterization of Aerosol Type Over East Asia by 4.4 km MISR Product: First Insight and General Performance
Download
Thumbnail Image
Name:
jgrd56319-sup-0001-2019jd031909-si.pdf
Size:
1.11 MB
Format:
Adobe Portable Document Format
Description:
Supporting Information
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
2.56 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

UMBC Physics Department
UMBC Faculty Collection
UMBC Joint Center for Earth Systems Technology (JCET)