Evaluation of Aqua MODIS and S-NPP VIIRS thermal emissive bands calibration stability using Dome-C

Ashish Shrestha; Xiaoxiong Xiong

doi:10.1117/12.2570827

20 August 2020 Evaluation of Aqua MODIS and S-NPP VIIRS thermal emissive bands calibration stability using Dome-C

Ashish Shrestha, Xiaoxiong Xiong

Proceedings Volume 11501, Earth Observing Systems XXV; 115011S (2020) https://doi.org/10.1117/12.2570827
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Conference Poster

Abstract

Establishing the calibration consistency between satellite measurements is an essential step in the implementation of a long-term global monitoring plan, which often leads to sensor calibration improvements. The Suomi National Polar-Orbiting Partnership (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) is a polar-orbiting Earth remote sensing instrument built with a strong Moderate Resolution Imaging Spectroradiometer (MODIS) heritage. The center wavelengths of all VIIRS thermal emissive bands (TEBs) match well with those of MODIS with the exception of VIIRS TEB M15 (10.7 μm). Previous work from the MODIS Characterization Support Team (MCST) at the NASA/GSFC used specific Earth surface targets to track the long-term consistency, stability, and relative bias between the two MODIS instruments onboard the Terra and Aqua satellites. Using similar methodologies, this paper evaluates the TEB calibration consistency between the MODIS instruments and S-NPP VIIRS over Dome Concordia (Dome-C). The Dome-C site is uniformly snow-covered and the atmospheric effects are small in the surrounding area. Near-surface air temperature measurements from an Automatic Weather Station (AWS) are used as a reference to track each sensor's calibration stability and determine the relative bias between the MODIS and VIIRS instruments. The results of this study provide a quantitative assessment of the S-NPP VIIRS TEB mission-long performance.

Citation Download Citation

Ashish Shrestha and Xiaoxiong Xiong "Evaluation of Aqua MODIS and S-NPP VIIRS thermal emissive bands calibration stability using Dome-C", Proc. SPIE 11501, Earth Observing Systems XXV, 115011S (20 August 2020); https://doi.org/10.1117/12.2570827

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