Correcting for Cryoprecipitation in the Calibration of IR Channels of the MSU-MR Radiometer
- Autores: Alexanin A.1,2, Gektin Y.3, Diakov S.1, Zaitsev A.3, Kachur V.1,2
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Afiliações:
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences
- Far Eastern Federal University
- Russian Space Systems
- Edição: Volume 54, Nº 9 (2018)
- Páginas: 1408-1414
- Seção: Spacecraft, Space Systems, and Programs for Exploration of the Earth from Space
- URL: https://journals.rcsi.science/0001-4338/article/view/148673
- DOI: https://doi.org/10.1134/S0001433818090025
- ID: 148673
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Resumo
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.
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Sobre autores
A. Alexanin
Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences; Far Eastern Federal University
Autor responsável pela correspondência
Email: aleks@iacp.dvo.ru
Rússia, Vladivostok, 690041; Vladivostok, 690000
Yu. Gektin
Russian Space Systems
Email: aleks@iacp.dvo.ru
Rússia, Moscow, 111250
S. Diakov
Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences
Email: aleks@iacp.dvo.ru
Rússia, Vladivostok, 690041
A. Zaitsev
Russian Space Systems
Email: aleks@iacp.dvo.ru
Rússia, Moscow, 111250
V. Kachur
Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences; Far Eastern Federal University
Email: aleks@iacp.dvo.ru
Rússia, Vladivostok, 690041; Vladivostok, 690000