Does FORCE correct for the RADIO_ADD_OFFSET in the Sentinel-2 L1C metadata?

[jesperdejby]

Hi! I have a few questions regarding harmonization and scaling of Sentinel-2 data:

• Does FORCE correct for the RADIO_ADD_OFFSET found in the MTD_MSIL1C.xml (typically -1000) where applicable? I have been generating products with the force-l2ps function.

• I have been referring to this article to scale and harmonize the ESA L2A product: https://clearsky.vision/knowledge/sentinel2-scaling-harmonization . Can similar scaling be used for the FORCE to produce reflectance values between 0 and 1 or would you recommend some other normalization technique?

Thank you!

[davidfrantz]

Hi @jesperdejby,

FORCE accounts for the additive offset in the L1C data.

The outputs of FORCE are only scaled by a multiplicative term, i.e. 10,000.
If you need floating point values between 0 and 1, simply divide by 10,000.

Best,
David

[jesperdejby]

Thank you!