I want to do both conventional InSAR and offset tracking with ALOS PALSAR and ALOS-2 PALSAR-2 (in Stripmap mode, not ScanSAR). I am ordering some new data from JAXA with a view to using it in STEP.
I would like to order SLC (Level 1.1) for the InSAR… I’m hoping I can still do offset tracking with it? Would I need to convert to GRD (or similar) first?
only CEOS. SNAP cannot read ALOS metadata when delivered as Geotiffs.
SLC is required for InSAR, but it also works for offset tracking. The most important step is a proper coregistration. You could try if you get better results when you apply multi-looking before the actual offset tracking.
The ALOS in GeoTiff reader is coming in the next release. However, the product doesn’t have all the metadata available in the CEOS format therefore for InSAR it’s recommended you order the CEOS L1.1 SLC data