How to calculate TOA Spectral radiance for Landsat 8

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  • Опубликовано: 12 сен 2024
  • video is about how to estimate TOA spectral radiance and its uses

Комментарии • 10

  • @gurpreetkaurbhavneet2016
    @gurpreetkaurbhavneet2016 9 месяцев назад

    God job❤

  • @sushreemonali1291
    @sushreemonali1291 3 года назад +1

    radiance will calculate for only thermal band or for all bands?

    • @studyathome4820
      @studyathome4820  3 года назад +1

      you can calculate for all bands

    • @studyathome4820
      @studyathome4820  3 года назад +1

      the formula for the same is given in the USGS website

  • @vishvapatel7317
    @vishvapatel7317 2 года назад

    Are the values of TOA reflectance and radiance are same ?

  • @vishvapatel7317
    @vishvapatel7317 2 года назад

    How can I find radiance of sentinel 2 level 1C data ?

  • @naureenfatima9715
    @naureenfatima9715 3 года назад

    If you can tell me how to obtain these constants because I am stuck in one numerical question because I want to Have ESUNi values,Lmax,Lmin etc

    • @studyathome4820
      @studyathome4820  3 года назад +1

      Thank you for your message. All the information is provided in the MTL text file, which is downloaded along with satellite bands.

    • @naureenfatima9715
      @naureenfatima9715 3 года назад +1

      I couldn't find Lmax,Lmin value...
      I have been surfing the site since long.....

    • @studyathome4820
      @studyathome4820  3 года назад

      @@naureenfatima9715 Hi.
      Lmin is the spectral radiance scales to QCALMIN, while Lmax is the spectral radiance scales to QCALMAX. So accordingly you can calculate. For help, I am providing you the links to the websites that might help you.
      1) yceo.yale.edu/how-convert-landsat-dns-top-atmosphere-toa-reflectance,
      2) landsat.gsfc.nasa.gov/sites/landsat/files/2012/08/news_0077.pdf.
      You can easily calculate.