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Figure: A lunar intrusion (LI) case occurring on May 31, 2020. Plotted are the original space view counts (black dots) and their standard deviation (blue dots) for NOAA-20 ATMS Channel 1 and 16 during the LI event.

Advanced Technology Microwave Sounder Radiance Data Products Calibration and Evaluation

ESSIC/CISESS Scientist Hu “Tiger” Yang has a new article on the Advanced Technology Microwave Sounder (ATMS) in press at IEEE Transactions on Geoscience and Remote Sensing. The Advanced Technology Microwave Sounder (ATMS) is a passive microwave radiometer for the current generation of polar-orbiting meteorological satellites operated by NOAA. The first two ATMS instruments are onboard the Suomi National Polar-orbiting Partnership (S-NPP) and NOAA-20 satellites. The article explains several critical changes in the ATMS operational calibration algorithm since March 2017. Details of the radiance-based ATMS on-orbit calibration are documented and results of pre-launch calibration error budget analysis and post-launch calibration accuracy evaluation are also presented.

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