Questions about the conversion from pixel value to reflectance value in PSScence4Band product

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Chenyong Miao

• May 24, 2019 16:50

Hi,

What does the pixel value mean in the `analytic` and 'analytic_sr' file? DNs or TOA Radiance?

If I want to convert the pixel value in `analytic_sr` file to the surface reflectance value which should be in 0-1, where I can find the scale factor or reflectance coefficient to do that?

 

Thanks

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• Official comment

  

  Pooja Pandey

  • May 28, 2019 10:07

  Hi Chenyong,

  The SR product is provided as a 16-bit GeoTIFF image with reflectance values scaled by 10,000. 

  You can find out more about it here:

  https://assets.planet.com/marketing/PDF/Planet_Surface_Reflectance_Technical_White_Paper.pdf

   

  Best Regards,

  Pooja

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