Validation of GOES-17 ABI reflective channels performance: Salar de Uyuni 2018 field campaign results

Boryana Efremova; Joel McCorkel; Alexander Krimchansky; Jason Hair; Marcos Andrade

doi:10.1117/12.2568601

14 September 2020 Validation of GOES-17 ABI reflective channels performance: Salar de Uyuni 2018 field campaign results

Boryana Efremova, Joel McCorkel, Alexander Krimchansky, Jason Hair, Marcos Andrade

Proceedings Volume 11501, Earth Observing Systems XXV; 115011B (2020) https://doi.org/10.1117/12.2568601
Event: SPIE Optical Engineering + Applications, 2020, Online Only

Abstract

Validation results from a reflectance-based field campaign at the Salar de Uyuni in Bolivia (September 2018) are presented for GOES-17 and GOES-16 Advanced Baseline Imagers (ABI) reflective channels. The in situ measurements were used to characterize the surface reflectance and the atmosphere in order to constrain a radiative transfer model and predict the reflectance at the top of the atmosphere (TOA), which was then compared to the ABI measurements. The field campaign provides TOA reflectance estimates over several days, allowing assessment of the calibration accuracy and stability of channels 1, 2, 3, 5 and 6 for GOES-17 and GOES-16 ABI. Channel 1 of GOES-17 ABI shows -5.5% bias in comparison to the ground-based predicted TOA. Over 6% bias in GOES-17 B2 was confirmed. A comparison to NOAA-20 VIIRS was also carried on during a near nadir overpass.

Conference Presentation

Citation Download Citation

Boryana Efremova, Joel McCorkel, Alexander Krimchansky, Jason Hair, and Marcos Andrade "Validation of GOES-17 ABI reflective channels performance: Salar de Uyuni 2018 field campaign results", Proc. SPIE 11501, Earth Observing Systems XXV, 115011B (14 September 2020); https://doi.org/10.1117/12.2568601

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