Problem RADtoREF

[marpet]

In Landsat only raw values are stored. In the metadata are coefficients given to compute radiance or reflectance values. By default we provide the radiances. You can set a property to get the reflectances.
I’ve explained how to do it in this post:

Compared with landsat 8

Actually there is no factor for the conversion to surface reflectance. But there is a factor to TOA reflectance. See my post here And for landsat8 I don’t know, but I don’t think that there is constant factor. And I think these are also TOA radiance or TOA reflectance. (see http://landsat.usgs.gov/Landsat8_Using_Product.php) By default SNAP provides the TOA radiance but you can change to TOA reflectance by specifying a property. To do this lookup the .snap folder in your user directory. Ins…