ESD misregistration due to along track deformation

[fdelgadodelapuente]

Dear ISCE developers,

I am processing Sentinel-1 time series of the 2018 Kilauea eruption and interferograms that span the Mw 6.8 earthquake that occurred in the fault below the volcano have strong phase jumps between specific bursts. This is expected because a significant part of this deformation is in the NS direction, and therefore it is recorded by the double differential burst overlap interferograms.

This is clearly seen in the burst overlap interferograms, in which the phase is not constant.

Is it possible to somehow not consider the ESD phase of the specific swath with the issue and instead derive the azimuth misregistration from a single swath with no along track deformation?

Thanks,
Francisco

[piyushrpt]

You are welcome to contribute scripts that take a bounding box into consideration for estimating ESD. Defining an area not impacted by large deformation is probably easier in geographic coordinates that swath coordinates (you may have multiple tracks to work with in general) and you can use that to decide which burst overlaps to consider for histogram generation.