Please use this identifier to cite or link to this item: https://doi.org/10.1029/2012JD017757
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dc.titleEvaluations of cirrus contamination and screening in ground aerosol observations using collocated lidar systems
dc.contributor.authorHuang, J.
dc.contributor.authorHsu, N.C.
dc.contributor.authorTsay, S.-C.
dc.contributor.authorHolben, B.N.
dc.contributor.authorWelton, E.J.
dc.contributor.authorSmirnov, A.
dc.contributor.authorJeong, M.-J.
dc.contributor.authorHansell, R.A.
dc.contributor.authorBerkoff, T.A.
dc.contributor.authorLiu, Z.
dc.contributor.authorLiu, G.-R.
dc.contributor.authorCampbell, J.R.
dc.contributor.authorLiew, S.C.
dc.contributor.authorBarnes, J.E.
dc.date.accessioned2014-12-12T07:11:05Z
dc.date.available2014-12-12T07:11:05Z
dc.date.issued2012
dc.identifier.citationHuang, J., Hsu, N.C., Tsay, S.-C., Holben, B.N., Welton, E.J., Smirnov, A., Jeong, M.-J., Hansell, R.A., Berkoff, T.A., Liu, Z., Liu, G.-R., Campbell, J.R., Liew, S.C., Barnes, J.E. (2012). Evaluations of cirrus contamination and screening in ground aerosol observations using collocated lidar systems. Journal of Geophysical Research D: Atmospheres 117 (15) : -. ScholarBank@NUS Repository. https://doi.org/10.1029/2012JD017757
dc.identifier.issn01480227
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/115100
dc.description.abstractCirrus clouds, particularly subvisual high thin cirrus with low optical thickness, are difficult to screen in operational aerosol retrieval algorithms. Collocated aerosol and cirrus observations from ground measurements, such as the Aerosol Robotic Network (AERONET) and the Micro-Pulse Lidar Network (MPLNET), provide us with an unprecedented opportunity to systematically examine the susceptibility of operational aerosol products to cirrus contamination. Quality assured aerosol optical thickness (AOT) measurements were also tested against the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) vertical feature mask (VFM) and the Moderate Resolution Imaging Spectroradiometer (MODIS) thin cirrus screening parameters for the purpose of evaluating cirrus contamination. Key results of this study include: (1) quantitative evaluations of data uncertainties in AERONET AOT retrievals are conducted; although AERONET cirrus screening schemes are successful in removing most cirrus contamination, strong residuals displaying strong spatial and seasonal variability still exist, particularly over thin cirrus prevalent regions during cirrus peak seasons; (2) challenges in matching up different data for analysis are highlighted and corresponding solutions proposed; and (3) estimates of the relative contributions from cirrus contamination to aerosol retrievals are discussed. The results are valuable for better understanding and further improving ground aerosol measurements that are critical for aerosol-related climate research. © 2012. American Geophysical Union. All Rights Reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1029/2012JD017757
dc.sourceScopus
dc.typeArticle
dc.contributor.departmentCTR FOR REM IMAGING,SENSING & PROCESSING
dc.description.doi10.1029/2012JD017757
dc.description.sourcetitleJournal of Geophysical Research D: Atmospheres
dc.description.volume117
dc.description.issue15
dc.description.page-
dc.identifier.isiut000307459900001
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