Assessment of MERIS reflectance data as processed with SeaDAS over the European seas

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Mélin, F., Zibordi, G., Berthon, J. -F., Bailey, S., Franz, B., Voss, K., … Grant, M. (2011). Assessment of MERIS reflectance data as processed with SeaDAS over the European seas. Optics Express, 19(25), 25657-25671.
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TitleAssessment of MERIS reflectance data as processed with SeaDAS over the European seas
AuthorsF. Mélin, G. Zibordi, J. Berthon, S. Bailey, B. Franz, K. Voss, S. Flora, M. Grant
AbstractThe uncertainties associated with MERIS remote sensing reflectance (R RS) data derived from the SeaWiFS Data Analysis System (SeaDAS) are assessed with field observations. In agreement with the strategy applied for other sensors, a vicarious calibration is conducted using in situ data from the Marine Optical BuoY offshore Hawaii, and leads to vicarious adjustment factors departing from 1 by 0.2% to 1.6%. The three field data sets used for validation have been collected at fixed stations in the northern Adriatic Sea and the Baltic Sea, and in a variety of European waters in the Baltic, Black, Mediterranean and North Seas. Excluding Baltic waters, the mean absolute relative difference |Psi;| between satellite and field data is 10-14% for the spectral interval 490-560 nm, 16-18% at 443 nm, and 24-26%at413 nm. In the Baltic Sea, the |Psi;| values are much higher for the blue bands characterized by low RRS amplitudes, but similar or lower at 560 and 665 nm. For the three validation sets, the root-mean-square differences decrease from approximately 0.0013 sr -1 at 413 nm to 0.0002 sr -1 at 665 nm, and are found similar or lower than those obtained for SeaWiFS or MODIS-Aqua. As derived from SeaDAS, the RRS records associated with these three missions thus provide a multi-mission data stream of consistent accuracy. © 2011 Optical Society of America.
JournalOptics Express
Date2011
Volume19
Issue25
Start page25657
End page25671
ISSN1094-4087
SubjectsBaltic sea, Data analysis system, Data stream, Field data, Field data sets, Field observations, In-situ data, Marine optical buoys, MODIS-Aqua, North Sea, Northern Adriatic Sea, Reflectance data, Remote-sensing reflectance, Root mean squares, SeaWiFs, Validation sets, Vicarious calibration, Band structure, Remote sensing, Uncertainty analysis, Reflection
NoteCited By (since 1996):4, Oceanography

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