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

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

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.

Original languageEnglish
Title of host publicationEarth Observing Systems XXV
EditorsJames J. Butler, Xiaoxiong Xiong, Xingfa Gu
PublisherSPIE
ISBN (Electronic)9781510638082
DOIs
StatePublished - 2020
EventEarth Observing Systems XXV 2020 - Virtual, Online, United States
Duration: 24 Aug 20204 Sep 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11501
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceEarth Observing Systems XXV 2020
Country/TerritoryUnited States
CityVirtual, Online
Period24/08/204/09/20

Bibliographical note

Funding Information:
The authors would like to acknowledge: the GOES-R Flight Project and Landsat 9 TIRS-2 Project for travel funding support; the Remote Sensing Group Laboratory, University of Arizona - for calibration of the reference panel; Brent Holben and AERONET team for training and loan of sun photometer for atmospheric characterization. In addition, we would like to thank the US Embassy in Bolivia for their invaluable logistic support, and Hertz-Bolivia for its excellent service.

Publisher Copyright:
© 2020 SPIE.

Keywords

  • GOES-16 ABI
  • GOES-17 ABI
  • NOAA-20 VIIRS
  • Validation

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