Volume 41 Issue 8
Sep.  2012
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MIN Min, ZHANG Yong, HU Xiu-Qing, DONG Li-Xin, RONG Zhi-Guo. Evaluation for radiometric calibration of infrared band of FY-3A medium resolution spectral imager(MERSI) using radiometric calibration sites[J]. Infrared and Laser Engineering, 2012, 41(8): 1995-2001.
Citation: MIN Min, ZHANG Yong, HU Xiu-Qing, DONG Li-Xin, RONG Zhi-Guo. Evaluation for radiometric calibration of infrared band of FY-3A medium resolution spectral imager(MERSI) using radiometric calibration sites[J]. Infrared and Laser Engineering, 2012, 41(8): 1995-2001.
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Evaluation for radiometric calibration of infrared band of FY-3A medium resolution spectral imager(MERSI) using radiometric calibration sites

  • 1.

    Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites,China Meteorological Administration (LRCVES/CMA),National Satellite Meteorological Center,Beijing 100081,China

  • Publish Date: 2012-08-25
  • This investigation compared the brightness temperatures observed by infrared band of FY-3A MERSI using on-board radiometric calibration coefficients with that simulated surface observation data. The primary surface data were collected from the simultaneous observation in Qinghai Lake site in 2008, 2009 and Dunhuang site in 2010, and buoy data in Qinghai Lake site in 2008 and 2009. Seven and eighteen groups of available data from the simultaneous observation data using optical instruments and buoy data in Qinghai Lake were used. It was found that the observed brightness temperatures by medium resolution spectral imager(MERSI) sensor were basically higher than the results derived from buoy data at nighttime, and the results were opposite at daytime. To sum up, the results from both simultaneous observation and buoy data indicate that the brightness temperatures observed by MERSI sensor are 1.721.18 K, which are systematically higher than the simulated results using surface observation data, which is mainly attributed to the variations of emissivity of on-board blackbody without calibration.
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    [2] Prabhakara C, Dalu G, Kunde V G. Estimation of sea surface temperature from remote sensing in the 11-to 13-m window region[J]. Journal of Geophysical Research, 1974, 79(33): 5039-5044.
    [3] Guenther B, Barnes W, Knight E, et al. MODIS calibration: a brief review of the strategy for the at-launch calibration approach[J]. Journal of Atmosphere Oceanic Technology, 1996, 13(2): 274-285.
    [4] Hu Xiuqing, Zhang Liyang, Zheng Zhaojun, et al. FY-3A multi-detector radiometric calibration for infrared band medium resolution spectral imager[J]. Optics and Precision Engineering, 2010, 18(9): 1972-1980. (in Chinese)
    [5] Zhang Yong, Li Yuan, Rong Zhiguo, et al. Absolute radiometric calibration of FY-2C infrared split-window channels by using sea buoy data and NCEP reanalysis data [J]. Journal of Infrared and Millimeter Waves, 2009, 28(3):188-193. (in Chinese)
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    [7] Kalnay E, Kanamitsu M, Kistler R, et al. The NCEP/NCAR 40-year reanalysis project[J]. Bulletin of the American Meteorological Society, 1996, 77(3): 437-471.
    [8] Hu Xiuqing, Rong Zhiguo, Qiu Kangmu, et al. In-flight radiometric calibration for thermal channels of FY-1C meteorological satellite sensors using QinghaiLake, Water surface radiometric calibration site[J]. Journal of Remote Sensing, 2002, 6(5): 328-334. (in Chinese)
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    [16] Hu Xiuqing, Zhang Yuxiang, Qiu Kangmu. In-flight radiometric calibration for VIR channels of FY-1C satellite sensor by using irradiance-based method[J]. Journal of Remote Sensing, 2003, 7(6): 458-464. (in Chinese)
    [17] Rong Zhiguo, Zhang Yuxiang, Wang Yuhua, et al. Calibration method for water vapor channel of scanning-radiometer carried by FY-2B satellite[J]. Journal of Infrared and Millimeter Waves, 2005, 24(5): 357-360. (in Chinese)
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Evaluation for radiometric calibration of infrared band of FY-3A medium resolution spectral imager(MERSI) using radiometric calibration sites

  • 1. Key Laboratory of Radiometric Calibration and Validation for Environmental Satellites,China Meteorological Administration (LRCVES/CMA),National Satellite Meteorological Center,Beijing 100081,China
  • Publish Date: 2012-08-25

Abstract: This investigation compared the brightness temperatures observed by infrared band of FY-3A MERSI using on-board radiometric calibration coefficients with that simulated surface observation data. The primary surface data were collected from the simultaneous observation in Qinghai Lake site in 2008, 2009 and Dunhuang site in 2010, and buoy data in Qinghai Lake site in 2008 and 2009. Seven and eighteen groups of available data from the simultaneous observation data using optical instruments and buoy data in Qinghai Lake were used. It was found that the observed brightness temperatures by medium resolution spectral imager(MERSI) sensor were basically higher than the results derived from buoy data at nighttime, and the results were opposite at daytime. To sum up, the results from both simultaneous observation and buoy data indicate that the brightness temperatures observed by MERSI sensor are 1.721.18 K, which are systematically higher than the simulated results using surface observation data, which is mainly attributed to the variations of emissivity of on-board blackbody without calibration.

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