Validation of the on-board radiometric calibration of the GOES I-M visible channel by reflectance-based vicarious methods

Nathan P. Leisso, Kurtis J. Thome, Jeffrey S. Czapla-Myers

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

The current generation of the Geostationary Operations Environmental Satellite (GOES) platform employs a total of 5 sensors to monitor and record atmospheric conditions used in predictions of upcoming weather events. Included in this package is a 5-band imager that, from the 36,000-km geosynchronous orbit inhabited by GOES platform, enables multiple fixed full-disc surface images of the earth during the course of a 24-hour day. There is currently no on-board radiometric calibration for the visible bands of the imager and radiometric calibration relies on vicarious approaches. The Remote Sensing Group (RSG) at the University of Arizona uses a vicarious approach that relies on ground-based measurements to determine the radiometric calibration for multiple sun-synchronous and airborne visible and near-infrared sensors. The current work extends the approach to the GOES I-M series of sensor. The paper presents the methods and results of the reflectance-based method applied to the 1-km visible channel of GOES-11 using large North American high-desert test sites. Modifications to the RSG's methods to take into account the location of the test sites at large zenith angles within the full-disk GOES image. The work provides an opportunity to evaluate uncertainties of the spectral BRF of the test sites at large view angles and resulting importance to the accurate radiometric calibration of a sensor. In addition, the impact of increased path length caused by the large view angle is evaluated with an emphasis on the increased effect of the atmospheric characterization.

Original languageEnglish (US)
Title of host publicationAtmospheric and Environmental Remote Sensing Data Processing and Utilization III
Subtitle of host publicationReadiness for GEOSS
DOIs
StatePublished - Dec 1 2007
EventAtmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS - San Diego, CA, United States
Duration: Aug 27 2007Aug 30 2007

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume6684
ISSN (Print)0277-786X

Other

OtherAtmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS
CountryUnited States
CitySan Diego, CA
Period8/27/078/30/07

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Keywords

  • Atmospheric characterization
  • BRDF
  • GOES-11
  • Radiometric calibration
  • Vicarious calibration

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Cite this

Leisso, N. P., Thome, K. J., & Czapla-Myers, J. S. (2007). Validation of the on-board radiometric calibration of the GOES I-M visible channel by reflectance-based vicarious methods. In Atmospheric and Environmental Remote Sensing Data Processing and Utilization III: Readiness for GEOSS [668404] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6684). https://doi.org/10.1117/12.734410