VEGETATION PRODUCTS

PRODUCTS FORMAT DEFINITION

MIR SPECTRAL BAND PLANE

This table describe the auxiliary data associated to spectral band MIR.

remark : HDF file, the first pixel, first line is reference (1,1).

Information on pixel radiometry :

 

  • Pixels non covered by a viewing segment are coded 0 with the 4 quality radiometric indicators in the status map set as bad (for S1, S10 products)

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  • Pixels having a ground reflectance less than 0 after atmospheric corrections, and with the corresponding quality radiometric indicator in the status map flagged as good, are coded 1 (for S1, S10, BS10 products)

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  • {phy}T0A=1 corresponds to a numeric value of 2000

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  • {phy}ground=1 corresponds to a numeric value of 2000

    • Auxiliary data

    VDATA NAMEVDATA CLASSFIELD NAME
    SPECTRAL BAND MIR AUXILIARY DATA IMAGE INFORMATION
    Keyword Definition Opt Content
    NUMBER_OF_LINES Number of lines --- lllll
    NUMBER_OF_PIXELS Number of pixels (the same for each line) --- PPPPP
    NUMBER_OF_BITS Number of bits for each pixel --- 16

     

    VDATA NAMEVDATA CLASSFIELD NAME
    SPECTRAL BAND MIR AUXILIARY DATA RADIOMETRIC PARAMETERS

    Including

     

  • parameters for equivalent radiance transformations (ABS_CALIB_COEF, ON_BOARD_AGAIN, NORMAL_SOLAR_IRR)

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  • calibration parameters (used for digital count to TOA or ground Reflectance transformation) : real_{phy}=a*Digital_count+b

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  • reference of atmospheric correction parameters if any (SMAC_COEF_REF)
    Keyword Definition Opt Content
    ABS_CALIB_COEF Absolute calibration coefficient (to calculate reflectance from luminance) --- A^k (for S product taken from the first segment included in the synthesis)
    ANALOG_GAIN Analog gain used for the current spectral Band --- Gm^k (for S product taken from the first segment included in the synthesis)
    ON_BOARD_GAIN VGT gain number used for the current spectral Band --- values from 1 to 6 (for S product taken from the first segment included in the synthesis)
    NORMAL_SOLAR_IRR Solar equivalent irradiance used for the current spectral band for TOA reflectance calculation --- E^k (for S product taken from the first segment included in the synthesis)
    COEF_A Coefficient a --- aaaaa.aa
    OFFSET B Coefficient b --- bbbbb.bb

    Pixel data

    SD Scientific data set

    Number type : DFNT_UINT16
    Rank : 2
    Dimension [rank] : (NUMBER_OF_LINES,NUMBER_OF_PIXELS)
    Name : PIXEL DATA

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