15 October 2012 On-orbit characterization of the GOES Imager channel-to-channel co-registration
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Abstract
The channel-to-channel co-registration of a satellite imaging system is an important performance metric that has a direct impact upon the reliability of the imager’s quantitatively-derived products. In this work, standard full-disk image data is used to measure the on-orbit channel-to-channel co-registration of the infrared channels of several GOES Imagers at a sub-pixel level. This is accomplished with two separate methods, one of which furthers preliminary research by Wu et. al.1 using GOES-8 and 9 spatial-spectral brightness temperature gradients, the other of which uses a statistical approach. The diurnal, seasonal, and long-term co-registration behavior is analyzed.
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Michael G. Grotenhuis, Xiangqian Wu, Fangfang Yu, Timothy J. Schmit, Scott S. Lindstrom, Changyong Cao, "On-orbit characterization of the GOES Imager channel-to-channel co-registration", Proc. SPIE 8510, Earth Observing Systems XVII, 85101T (15 October 2012); doi: 10.1117/12.929590; https://doi.org/10.1117/12.929590
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