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Enhanced Deep Blue Aerosol Retrieval Algorithm: The Second GenerationThe aerosol products retrieved using the MODIS collection 5.1 Deep Blue algorithm have provided useful information about aerosol properties over bright-reflecting land surfaces, such as desert, semi-arid, and urban regions. However, many components of the C5.1 retrieval algorithm needed to be improved; for example, the use of a static surface database to estimate surface reflectances. This is particularly important over regions of mixed vegetated and non- vegetated surfaces, which may undergo strong seasonal changes in land cover. In order to address this issue, we develop a hybrid approach, which takes advantage of the combination of pre-calculated surface reflectance database and normalized difference vegetation index in determining the surface reflectance for aerosol retrievals. As a result, the spatial coverage of aerosol data generated by the enhanced Deep Blue algorithm has been extended from the arid and semi-arid regions to the entire land areas.
Document ID
20140010902
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1002/jgrd.50712
Authors
Hsu, N. C. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Jeong, M.-J. (Gangneung-Wonju National Univ. Gangneung, Korea, Republic of)
Bettenhausen, C. (Science Systems and Applications, Inc. Lanham, MD, United States)
Sayer, A. M. (Universities Space Research Association Greenbelt, MD, United States)
Hansell, R. (Maryland Univ. College Park, MD, United States)
Seftor, C. S. (Science Systems and Applications, Inc. Lanham, MD, United States)
Huang, J. (National Environmental Satellite Service Boulder, CO, United States)
Tsay, S.-C. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 20, 2014
Publication Date
August 30, 2013
Publication Information
Publication: Journal of Geophysical Research: Atmospheres
Volume: 118
Issue: 16
Subject Category
Earth Resources And Remote Sensing
Report/Patent Number
GSFC-E-DAA-TN9142
Funding Number(s)
CONTRACT_GRANT: NNG11HP16A
CONTRACT_GRANT: NNG12HP08C
CONTRACT_GRANT: NNX12AD03A
Distribution Limits
Public
Copyright
Public Use Permitted.
Keywords
Deep Blue
aerosol optical depth
aerosol retrieval algorithm

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