Correcting for Cryoprecipitation in the Calibration of IR Channels of the MSU-MR Radiometer
- Авторы: Alexanin A.1,2, Gektin Y.3, Diakov S.1, Zaitsev A.3, Kachur V.1,2
-
Учреждения:
- Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences
- Far Eastern Federal University
- Russian Space Systems
- Выпуск: Том 54, № 9 (2018)
- Страницы: 1408-1414
- Раздел: 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
Цитировать
Аннотация
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.
Ключевые слова
Об авторах
A. Alexanin
Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences; Far Eastern Federal University
Автор, ответственный за переписку.
Email: aleks@iacp.dvo.ru
Россия, Vladivostok, 690041; Vladivostok, 690000
Yu. Gektin
Russian Space Systems
Email: aleks@iacp.dvo.ru
Россия, Moscow, 111250
S. Diakov
Institute of Automation and Control Processes, Far Eastern Branch, Russian Academy of Sciences
Email: aleks@iacp.dvo.ru
Россия, Vladivostok, 690041
A. Zaitsev
Russian Space Systems
Email: aleks@iacp.dvo.ru
Россия, 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
Россия, Vladivostok, 690041; Vladivostok, 690000