American University
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Prelaunch radiometric calibration and uncertainty analysis of Landsat Thermal Infrared Sensor 2

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posted on 2023-08-05, 13:06 authored by Aaron Pearlman, Matthew Montanaro, Boryana Efremova, Joel McCorkel, Brian Wenny, Allen LunsfordAllen Lunsford, Dennis Reuter

The Thermal Infrared Sensor-2 (TIRS-2) that will be onboard Landsat 9 has undergone a prelaunch testing campaign to characterize its radiometric, spectral, and spatial performances and demonstrate compliance to its requirements. This work reviews the key elements of the instrument-level radiometric testing using an SI-traceable source to derive its uncertainties. Those arising from on-orbit calibration using the TIRS-2 onboard blackbody are also discussed. We use a Monte Carlo approach to propagate the uncertainties through a nonlinear calibration equation and address both random and systematic uncertainty terms. Achieving the required performance demonstrates the instrument's potential for enhancing our understanding of the Earth's environment.



IEEE Transactions on Geoscience and Remote Sensing


Published in: IEEE Transactions on Geoscience and Remote Sensing, Volume 59, Issue 4, April 2021, Article number 9147018, Pages 2715-2726.


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