Cross calibration of ocean-color bands from Moderate Resolution Imaging Spectroradiometer on Terra platform
Applied Optics, Vol. 47, Issue 36, pp. 6796-6810 (2008)
http://dx.doi.org/10.1364/AO.47.006796
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Abstract
Ocean-color applications require maximum uncertainties in blue-wavelength water-leaving radiances in oligotrophic ocean of approximately 5%. Water-leaving radiances from Moderate Resolution Imaging Spectroradiometer (MODIS) on the Terra satellite, however, exhibit temporal drift of the order of 15% as well as sensor changes in response versus scan and polarization sensitivity, which cannot be tracked by onboard calibrators. This paper introduces an instrument characterization approach that uses Earth-view data as a calibration source. The approach models the top of the atmosphere signal over ocean that the instrument is expected to measure, including its polarization, with water-leaving radiances coming from another well-calibrated global sensor. The cross calibration allows for significant improvement in derived MODIS–Terra ocean-color products, with largest changes in the blue wavelengths.
© 2008 Optical Society of America
OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(010.1285) Atmospheric and oceanic optics : Atmospheric correction
(280.4788) Remote sensing and sensors : Optical sensing and sensors
(010.1690) Atmospheric and oceanic optics : Color
(010.0280) Atmospheric and oceanic optics : Remote sensing and sensors
ToC Category:
Atmospheric and Oceanic Optics
History
Original Manuscript: June 26, 2008
Revised Manuscript: October 18, 2008
Manuscript Accepted: October 18, 2008
Published: December 15, 2008
Virtual Issues
Vol. 4, Iss. 2 Virtual Journal for Biomedical Optics
Citation
Ewa J. Kwiatkowska, Bryan A. Franz, Gerhard Meister, Charles R. McClain, and Xiaoxiong Xiong, "Cross calibration of ocean-color bands from Moderate Resolution Imaging Spectroradiometer on Terra platform," Appl. Opt. 47, 6796-6810 (2008)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-47-36-6796
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