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Response to Toward Unified Satellite Climatology of Aerosol PropertiesA recent paper by Mishchenko et al. compares near-coincident MISR, MODIS, and AERONET aerosol optical depth (AOD), and gives a much less favorable impression of the utility of the satellite products than that presented by the instrument teams and other groups. We trace the reasons for the differing pictures to whether known and previously documented limitations of the products are taken into account in the assessments. Specifically, the analysis approaches differ primarily in (1) the treatment of outliers, (2) the application of absolute vs. relative criteria for testing agreement, and (3) the ways in which seasonally varying spatial distributions of coincident retrievals are taken into account. Mishchenko et al. also do not distinguish between observational sampling differences and retrieval algorithm error. We assess the implications of the different analysis approaches, and cite examples demonstrating how the MISR and MODIS aerosol products have been applied successfully to a range of scientific investigations.
Document ID
20110016148
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
Kahn, Ralph A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Garay, Michael J.
(Raytheon Co. Pasadena, CA, United States)
Nelson, David L.
(Raytheon Co. Pasadena, CA, United States)
Levy, Robert C.
(Science Systems and Applications, Inc. Lanham, MD, United States)
Bull, Michael A.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Diner, David J.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Martonchik, John V.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hansen, Earl G.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Remer, Lorraine A.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Tanre, Didler
(Universite des Sciences et Techniques de Lille Villeneuve d'Ascq, France)
Date Acquired
August 25, 2013
Publication Date
March 1, 2010
Publication Information
Publication: Journal of Quantitative Spectroscopy and Radiative Transfer
Publisher: Elsevier Ltd.
Volume: 112
Issue: 5
ISSN: 0022-4073
Subject Category
Earth Resources And Remote Sensing
Distribution Limits
Public
Copyright
Other

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