I’m trying a simple manipulation using Graph Builder from SNAP. I want to calibrate from ENVISAT ASAR N1 data to Sigma Nought for a big stack of data (> 200).
When used for one image, it works perfectly.
But when I tried with Graph Builder and using “Product set reader” module, I obtain this message error : «Operator ‘CalibrationOp’ : Mandatory source product (field ‘sourceProduct’) not set.»
In the Calibration parameter, I mentioned I would like to use the Amplitude band information, I understand that the Graph Builder is waiting for this kind of information but it doesn’t work.
Could you please help me on this topic ?
Thanks a lot,