Rong Zhiguo, Zhang Yuxiang, Qiu Kangmu, et al. Radiometric calibration on orbit for FY-2B meteorological satellite' s visible channels with the radiometric calibration site of Dunhuang. J Appl Meteor Sci, 2004, 15(3): 266-272.
Citation: Rong Zhiguo, Zhang Yuxiang, Qiu Kangmu, et al. Radiometric calibration on orbit for FY-2B meteorological satellite' s visible channels with the radiometric calibration site of Dunhuang. J Appl Meteor Sci, 2004, 15(3): 266-272.

RADIOMETRIC CALIBRATION ON ORBIT FOR FY-2B METEOROLOGICAL SATELLITE' S VISIBLE CHANNELS WITH THE RADIOMETRIC CALIBRATION SITE OF DUNHUANG

  • Received Date: 2003-01-12
  • Rev Recd Date: 2003-07-09
  • Publish Date: 2004-06-30
  • Pre-launch calibration of the FY-2B's visible channels has much error due to the influence of stray light. The radiometric calibration on orbit for FY-2B's visible channels might be running with the radiometric calibration site of Dunhuang's Gobi. There are must calibrated the BRDF of bi-direction characteristic of Dunhuang's site, because the zenith is close to 50°. The reflectance of the Gobi, light extinction of atmosphere and radiosonde observation were measured in synchronization for FY-2B in July 2002, while the bi-direction characteristics of the site were measured. The data processed results indicate that the calibration precision are debased 20% due to influence of stray light for FY-2B's visible channels, and the output of FY-2B's visible channels is very stabilization after long stakeout. The calibration tables calibrated by the site of four visible channels were listed.
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    • Received : 2003-01-12
    • Accepted : 2003-07-09
    • Published : 2004-06-30

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