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Izvestiya, Atmospheric and Oceanic Physics

, Volume 54, Issue 9, pp 1408–1414 | Cite as

Correcting for Cryoprecipitation in the Calibration of IR Channels of the MSU-MR Radiometer

  • A. I. AlexaninEmail author
  • Yu. M. Gektin
  • S. E. Diakov
  • A. A. Zaitsev
  • V. A. Kachur
SPACECRAFT, SPACE SYSTEMS, AND PROGRAMS FOR EXPLORATION OF THE EARTH FROM SPACE

Abstract

The presence of cryoprecipitation, which forms a thin film on the input windows of infrared (IR) detectors and distorts the signal, is a major issue in calibration of IR channels of the multispectral scanning imager–radiometer (MSU-MR) aboard Meteor-M No. 2. A model of signal attenuation in transmission through such films and a method for calculating this attenuation were developed. Correction functions for the detected signal were obtained. The developed algorithms were used for cross-calibration between the MSU-MR IR channels and the corresponding channels of the advanced very-high-resolution radiometer of MetOp satellites. An algorithm for calculating the sea surface temperature (SST) based on the non-linear SST technology (split-window technology) was developed and verified by comparison with in situ data. The SST calculation error was less than 0.8°C for the entire sample, which satisfies world quality standards. The stability of calibration parameters within an interval of two years was demonstrated.

Keywords:

MSU-MR Meteor-M No. 2 calibration cryoprecipitation sea surface temperature 

Notes

ACKNOWLEDGMENTS

The development of the optical model of cryoprecipitation was supported by the Russian Science Foundation, project no. 4-50-00034. The study was also supported by the Fundamental Research Program of the Presidium of the Russian Academy of Sciences. Resources of the Satellite Center of the Far Eastern Branch of the Russian Academy of Sciences were employed.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • A. I. Alexanin
    • 1
    • 3
    Email author
  • Yu. M. Gektin
    • 2
  • S. E. Diakov
    • 1
  • A. A. Zaitsev
    • 2
  • V. A. Kachur
    • 1
    • 3
  1. 1.Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of SciencesVladivostokRussia
  2. 2.Russian Space SystemsMoscowRussia
  3. 3.Far Eastern Federal UniversityVladivostokRussia

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