22 August 2005 Residual correlations in the solar diffuser measurements of the MODIS Aqua ocean color bands to the sun yaw angle
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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 Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Gerhard Meister, Gerhard Meister, Frederick S. Patt, Frederick S. Patt, Xiaoxiong Xiong, Xiaoxiong Xiong, Junqiang Sun, Junqiang Sun, Xiaobo Xie, Xiaobo Xie, Charles R. McClain, Charles R. McClain, } "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 (22 August 2005); doi: 10.1117/12.620094; https://doi.org/10.1117/12.620094
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