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The Ocean Colour Climate Change Initiative: I. A Methodology for Assessing Atmospheric Correction Processors Based on In-Situ MeasurementsThe Ocean Colour Climate Change Initiative intends to provide a long-term time series of ocean colour data and investigate the detectable climate impact. A reliable and stable atmospheric correction procedure is the basis for ocean colour products of the necessary high quality. In order to guarantee an objective selection from a set of four atmospheric correction processors, the common validation strategy of comparisons between in-situ and satellite derived water leaving reflectance spectra, is extended by a ranking system. In principle, the statistical parameters such as root mean square error, bias, etc. and measures of goodness of fit, are transformed into relative scores, which evaluate the relationship of quality dependent on the algorithms under study. The sensitivity of these scores to the selected database has been assessed by a bootstrapping exercise, which allows identification of the uncertainty in the scoring results. Although the presented methodology is intended to be used in an algorithm selection process, this paper focusses on the scope of the methodology rather than the properties of the individual processors.
Document ID
20150023339
Document Type
Reprint (Version printed in journal)
Authors
Muller, Dagmar (Helmholtz-Zentrum Geesthacht Germany)
Krasemann, Hajo (Helmholtz-Zentrum Geesthacht Germany)
Brewin, Robert J. W. (Plymouth Marine Lab. United Kingdom)
Deschamps, Pierre-Yves (Hygeos Earth Observation Lille, France)
Doerffer, Roland (Helmholtz-Zentrum Geesthacht Germany)
Fomferra, Norman (Brockmann-Consult GmBH Geesthacht)
Franz, Bryan A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Grant, Mike G. (Plymouth Marine Lab. United Kingdom)
Groom, Steve B. (Plymouth Marine Lab. United Kingdom)
Melin, Frederic (Commission of the European Communities Ispra, Italy)
Platt, Trevor (Plymouth Marine Lab. United Kingdom)
Regner, Peter (European Space Agency Paris, France)
Sathyendranath, Shubha (Plymouth Marine Lab. United Kingdom)
Steinmetz, Francois (Hygeos Earth Observation Lille, France)
Swinton, John (Telespazio VEGA UK Ltd. United Kingdom)
Date Acquired
December 18, 2015
Publication Date
April 15, 2015
Publication Information
Publication: Remote Sensing of Environment
Volume: 162
Subject Category
Oceanography
Numerical Analysis
Report/Patent Number
GSFC-E-DAA-TN23655
Funding Number(s)
WBS: WBS 365382.04.23.02
Distribution Limits
Public
Copyright
Other
Keywords
Climate Change
Atmospheric correction
Ocean Colour