Why DN values of images processed by Sen2Cor are not reflectance

[rebecca1993]

After S2 images processed by Sen2Cor, their DN values are hundreds not reflectance (0< reflectance <1), how can I got reflectance?

[ABraun]

How to calculate the reflectance

Level 2A is reflectance, but in Integer. To get it scaled over 0-1, you’ll have to divide by the QUANTIFICATION_VALUE from the metadata, mostly 10000 [image]