A GUI/dialogue will open. We now locate and select the Leader file for our dataset. Next click “Check Files” to ensure the dataset is correct and complete, then “Read Header”. Click OK to close the dialogue and OK again when a pop-up reminds us to extract the data. PolSARPro is a little pedantic at times. We no select “Import”, then “Extract” and “Full Resolution” to open a new dialogue allowing us to load our image data.I want to calibrate the data so I choose to produce the Sinclair Elements (S2) not coherency or covariance elements.