Evaluation of vicarious calibration for airborne sensors using RadCalnet

Brian N. Wenny, Kurtis Thome, Jeff Czapla-Myers

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

2 Scopus citations


Vicarious calibration approaches using in-situ measurements is a key technique applied to on-orbit remote sensors. The in-situ measurements have advantages in terms of traceability and quantifiable accuracy making them ideal for interconsistency studies of on-orbit sensors. The Committee on Earth Observation Satellites (CEOS) Working Group on Calibration and Validation (WGCV) Infrared Visible Optical Sensors (IVOS) initiated the Radiometric Calibration Network (RadCalNet) to provide automated surface and top-of atmosphere reflectance data from multiple participating ground sites to the world-wide user community. RadCalNet standardizes protocols for collecting data, processing to top-of- atmosphere reflectance, and provides SI-traceable uncertainty budgets for the 4 currently operating sites. RadCalNet data from the Railroad Valley Playa, Nevada site was used to provide an SI-traceable, absolute radiometric calibration of the Enhanced MODIS Airborne Simulator (eMAS) as part of an overflight of opportunity during the FIREX-AQ campaign. The results shown here demonstrate the utility of RadCalNet data for absolute radiometric calibration of airborne imagers making flights of opportunity without the need for coordination with a field validation team.

Original languageEnglish (US)
Title of host publicationSensors, Systems, and Next-Generation Satellites XXIV
EditorsSteven P. Neeck, Arnaud Heliere, Toshiyoshi Kimura
ISBN (Electronic)9781510638730
StatePublished - 2020
EventSensors, Systems, and Next-Generation Satellites XXIV 2020 - Virtual, Online, United Kingdom
Duration: Sep 21 2020Sep 25 2020

Publication series

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


ConferenceSensors, Systems, and Next-Generation Satellites XXIV 2020
Country/TerritoryUnited Kingdom
CityVirtual, Online


  • Calibration
  • Sensor
  • Vicarious

ASJC Scopus subject areas

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


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