System vicarious calibration for ocean color climate change applications: Requirements for in situ data,

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Date
2015Author
Zibordi, Giuseppe
Mélin, Frédéric
Voss, Kenneth J.
Johnson, B.Carol
Franz, Bryan A.
Kwiatkowska, Ewa
Huot, Jean-Paul
Wangg, Menghua
Antoine, David
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Show full item recordAbstract
System Vicarious Calibration (SVC) ensures a relative radiometric calibration to satellite ocean color sensors that
minimizes uncertainties in thewater-leaving radiance Lw derived fromthe top of atmosphere radiance LT. This is
achieved through the application of gain-factors, g-factors, to pre-launch absolute radiometric calibration coefficients
of the satellite sensor corrected for temporal changes in radiometric sensitivity. The g-factors are determined
by the ratio of simulated to measured spectral LT values where the former are computed using: i. highly
accurate in situ Lw reference measurements; and ii. the same atmospheric models and algorithms applied for
the atmospheric correction of satellite data. By analyzing basic relations between relative uncertainties of Lw
and LT, and g-factors consistently determined for the same satellite mission using different in situ data sources,
this work suggests that the creation of ocean color Climate Data Records (CDRs) should ideally.....
Journal
Remote Sensing of EnvironmentVolume
159Page Range
pp.361-369Document Language
enSustainable Development Goals (SDG)
14.AEssential Ocean Variables (EOV)
Ocean colourMaturity Level
TRL 8 Actual system completed and "mission qualified" through test and demonstration in an operational environment (ground or space)Best Practice Type
Manual (incl. handbook, guide, cookbook etc)DOI Original
http://dx.doi.org/10.1016/j.rse.2014.12.015Citation
Zibordi, G. et al (2015) System vicarious calibration for ocean color climate change applications: Requirements for in situ data. Remote Sensing of Environment, 159, pp.361-369. DOI: https://doi.org/10.1016/j.rse.2014.12.015.Collections
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