Hi SNAP, I used to compute Coherence between two Sentinel-1 images following this S1TBX Tutorial using this graph attached. However, even for small areas this takes very long computation because it loads full images and then debursts.
I later discovered that ASF provides single bursts, but the graph does not work anymore, it gives an error saying that the input is not a SAR product. How should I perform Coherence between two S1 Bursts?
Thanks
s1coherence.xml (7.3 KB)
Coherence between S-1 bursts can be obtained using the ASF On Demand processing service. This is a free, cloud-based service available through Vertex Data Search, or programmatically using the HyP3 SDK or HyP3 API.
Information on the ISCE2-based burst processing service is available in the Product Guide:
General information on the ASF On Demand processing service is available in the user guide:
Thank you for the info. What about SNAP? Is it possible reading ASF bursts as SAR products in SNAP?
Thanks
No. SNAP supports official Copernicus S-1 products and their single-burst product once it becomes operational.
It’s incorrect because SNAP supports SAFE format scenes independently of their origin. You can try these options:
NASA ASF team provided burst downloading tool to download individual bursts and convert them to common SAFE scenes: GitHub - forrestfwilliams/burst2safe: A package for converting ASF-derived Sentinel-1 burst SLC products to the ESA SAFE format
PyGMTSAR (Python InSAR) provides bursts downloading module to save them as single burst SAFE scenes.