SNAP Biophysical operator Flags

Hi all,

I’m currently working with LAI, FPAR and FCOVER data retrieved from the Biophisycal operator. I ran the module from command line using and R script to automate the process.

When i check the output data it looks good, for example the values and ranges of the variables.

My question is regarding the quality flags. Reading the manual ( it looks that the QA flags could take values from 0 to 4 (3 bits) but i have strange values (image attached), it seems that the 0 value is ok, the 1 value is fair ok (input out of range) but the values above 4 are bad quality data. The majority of the QA data is beetween 0 and 1 but i think that if may be and error in the computing of the flags, maybe it could be a error in the computing of the LAI, FPAR and FCOVER products also.

Someone have had this error?

Best regards,


There is several issue with biophysical processor on S2A product mainly.
Also, the last ATBD version is here
The next minor release will fix the problem ASAP.
I hope next week.