What does best image for the S2 data mean?

Found in the Problem Description section: We have selected the best image for each month from the S2 data, as opposed to taking the mean of all images collected over the month, as is done with S1.

What is the criteria for “best image”?

Hi @zhou.m,

The best image is the one with the least missing data.

Good luck, and let us know if you have any other questions!