Calibrated intercepts for solar radiometers used in remote sensor calibration

David I. Gellman, Stuart F. Biggar, Philip N. Slater, Carol J. Bruegge

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

35 Scopus citations

Abstract

Calibrated solar radiometer intercepts allow spectral optical depths to be determined for days with intermittently clear skies. This is of particular importance on satellite sensor calibration days that are cloudy except at the time of image acquisition. This paper describes the calibration of four solar radiometers using the Langley-Bouguer technique for data collected on days with a clear, stable atmosphere. Intercepts are determined with an uncertainty of less than 6%, corresponding to a maximum uncertainty of 0.06 in optical depth. The spread of voltage intercepts calculated in this process is carried through three methods of radiometric calibration of satellite sensors to yield an uncertainty in radiance at the top of the atmosphere of less than 1% associated with the uncertainty in solar radiometer intercepts for a range of ground reflectances.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
PublisherPubl by Int Soc for Optical Engineering
Pages175-180
Number of pages6
ISBN (Print)0819406023
StatePublished - Dec 1 1991
EventCalibration of Passive Remote Observing Optical and Microwave Instrumentation - Orlando, FL, USA
Duration: Apr 3 1991Apr 5 1991

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume1493
ISSN (Print)0277-786X

Other

OtherCalibration of Passive Remote Observing Optical and Microwave Instrumentation
CityOrlando, FL, USA
Period4/3/914/5/91

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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  • Cite this

    Gellman, D. I., Biggar, S. F., Slater, P. N., & Bruegge, C. J. (1991). Calibrated intercepts for solar radiometers used in remote sensor calibration. In Proceedings of SPIE - The International Society for Optical Engineering (pp. 175-180). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 1493). Publ by Int Soc for Optical Engineering.