DinSAR with AlospalSAR Pairs free from Alaska Satellite Facility

Hello Everyone, I´m Fernando Monterroso and I´m working InSAR for detect deformations in manizales City zone from colombian central. For this job, I downloaded Image Pairs from Alaska Satellite Facility. I show the caracteristics image in the folowing image.

AlosPal SAR 1.1 (Ascendent), SLC.

But, my results are very incoerent in the interferograma and coherence in the city is ok.

Please Help me.


The coherence is low because the time-interval between the images is so long.

Ok @mengdahl thanks.