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Proceedings Article

Residual correlations in the solar diffuser measurements of the MODIS Aqua ocean color bands to the sun yaw angle

[+] Author Affiliations
Gerhard Meister

Futuretech Corp.

Frederick S. Patt

SAIC, NASA Goddard Space Flight Ctr.

Xiaoxiong Xiong

NASA/GSFC

Junqiang Sun, Xiaobo Xie

Science Systems and Applications Inc.

Charles R. McClain

NASA Goddard Space Flight Ctr.

Proc. SPIE 5882, Earth Observing Systems X, 58820V (September 08, 2005); doi:10.1117/12.620094
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From Conference Volume 5882

  • Earth Observing Systems X
  • James J. Butler
  • San Diego, California, United States | July 31, 2005

abstract

The Moderate Resolution Imaging Spectroradiometer (MODIS) on the Earth Observing System (EOS) Aqua platform uses biweekly solar diffuser measurements for the radiometric calibration of the ocean color bands. The solar angle relative to the spacecraft changes throughout the year. This document describes correlations in the solar diffuser measurements of the ocean color bands to the sun yaw angle. The functional form of the correlations depends on the position of the respective band and detector on the focal plane. The proposed corrections often exceed 0.5% (peak-to-peak). The most likely source of the correlations is the radiometric characterization of the solar diffuser screen. These results show the importance of a complete prelaunch characterization for spaceborne sensors regarding the radiometric calibration.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Gerhard Meister ; Frederick S. Patt ; Xiaoxiong Xiong ; Junqiang Sun ; Xiaobo Xie, et al.
"Residual correlations in the solar diffuser measurements of the MODIS Aqua ocean color bands to the sun yaw angle", Proc. SPIE 5882, Earth Observing Systems X, 58820V (September 08, 2005); doi:10.1117/12.620094; http://dx.doi.org/10.1117/12.620094


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