System vicarious calibration for ocean color climate change applications: Requirements for in situ data,
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Voss, Kenneth J.
Franz, Bryan A.
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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.....
JournalRemote Sensing of Environment
Sustainable Development Goals (SDG)14.A
Essential Ocean Variables (EOV)Ocean colour
Maturity LevelTRL 8 Actual system completed and "mission qualified" through test and demonstration in an operational environment (ground or space)
Best Practice TypeManual (incl. handbook, guide, cookbook etc)
CitationZibordi, 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.
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