Gu Songyan, Fan Tianxi, hang Wenjian, et al. Improved NDVI of FY-1C CAVHRR. J Appl Meteor Sci, 2003, 14(5): 562-567.
Citation: Gu Songyan, Fan Tianxi, hang Wenjian, et al. Improved NDVI of FY-1C CAVHRR. J Appl Meteor Sci, 2003, 14(5): 562-567.

IMPROVED NDVI of FY-1C CAVHRR

  • Received Date: 2002-08-08
  • Rev Recd Date: 2002-10-16
  • Publish Date: 2003-10-31
  • An analysis of the NDVI and the calibration coefficients used to describe sensor degradation in Channel 1 of the Chinese Advanced Very High Resolution Radiometer (CAVHRR) boarding on the FY-1C spacecraft are presented. The radiometrically stable permanent sand of Dunhuang is used as a target to characterize sensor performance, and remote sensing data of CAVHRR over Dunhuang during 3 years was used. The analysis results show that the degradation in Channel 1 of FY-1C made the distribution of FY-1C NDVI all over the world fuzzy and cannot show the situation of canopy growing. Corrected model for NDVI and califuzzy and cannot show the situation of Channel 1 of FY-1C CAVHRR constructed from Dunhuang reflectivity and NDVI database can improve the FY-1C global NDVI distribution. The relationship improving with time for NDVI and calibration coefficients for Channel 1 of FY-1C was derived from this researching work. The improved new calibration coefficients for CAVHRR Channel 1 have a great correspondence with the results of CRCS is 2000. It is recommended that the derived model and coefficients are helpful to improve the quantity application of FY-1C global remote sensing data.
  • [1]
    谷松岩, 邱红, 刘玉洁, 等. FY-1C可见光通道衰减分析及订正试验.应用气象学报, 2002, 13(6):734-740. http://qikan.camscma.cn/jams/ch/reader/view_abstract.aspx?file_no=20020696&flag=1
    [2]
    Rao C R N, Chen J. Inter-satellite calibration linkage for the visible and near infrared channels of the Advanced Very High Resolution Radiometer on the NOAA-7, 9, and 11 spacecraft. Int. J. Remote Sensing, 1995, 16: 1931-1942. doi:  10.1080/01431169508954530
    [3]
    Rao C R N, Chen J. Post-launch calibration of the visible and near infrared channels of the Advanced Very High Resolution Radiometer on the NOAA-14 spacecraft. Int. J. Remote Sensing. 1996, 17: 2743-2747. doi:  10.1080/01431169608949104
    [4]
    Tahnk W R, Coakley J A. Improved calibration coefficients for NOAA-14 AVHRR visible and near-infrared channels. Int. J. Remote Sensing, 2001, 22(7) : 1269-1283. doi:  10.1080/01431160151144341
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    • Received : 2002-08-08
    • Accepted : 2002-10-16
    • Published : 2003-10-31

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