TOPSAR Question

[ABraun]

yes, of course.

Deformation in Volcano with InSAR

Hi! I’m working with Sentinel-1 data with the goal of determinate deformation in Turrialba Volcano, in Costa Rica. In the last months, the volcano has had an important eruptive activity and I want to determinate the deformation related with this activity. In my the very first processing, I used the next images: S1A_IW_SLC__1SSV_20160801T112228_20160801T112255_012406_0135B4_8F2F.zip S1A_IW_SLC__1SSV_20160825T112229_20160825T112256_012756_014161_B925.zip I made the processing in SNAP for Wind…

Fault Deformation Steps

Hi everyone, i am trying to detect deformation on faults by using sentinel SLC IW data but i am a little confused about the steps that i should apply; My first step of every image is ; Splitting, Debursting and Merging the data and after i create a Subset with only VV or HH band (because i am only interested with these bands) After doing upper steps for all my images ,do i need to follow ; Radiometric—Calibrate Multilooking the image ( I dont know what i am going to choose for “Number…

Some explanations about concepts of fringes of interferogram and coherence

Dear all, The phase difference can have contributions from five different sources: Δφflat is called flat Earth phase which is the phase contribution due to the earth curvature.  Δφelevation is the topographic contribution to the interferometric phase.  Δφdisplacement is the surface deformation contribution to the interferometric phase.  Δφatmosphere is the atmospheric contribution to the interferometric phase. It is introduced due to the atmospheric humidity, temperature and pressur…

Repeat-pass interferometry

Dear all, There are basically three different concepts of SAR interferometry: 1) single-pass along-track interferometry, 2) single-pass across-track interferometry, and 3) repeat-pass interferometry. The single-pass concepts illuminate the surface simultaneously in time with two spatially separated antennas. For the along-track case, the antennas are separated in the along-track direction. Systems using the along-track InSAR technique are mainly airborne, but the technique has also been demons…

S1 Tops coregistration

Good morning, thank you in advance for your help. I followed the guide, and Tops S1 Coreg phase me a “dataBuffer” error appeared. I attach images errors and PC RAM Using Intel i5, 4 GB Ram, I thank you for your invaluable help. Michele [image][image][image] Good morning, thank you in advance for your help. I followed the guide, and Tops S1 Coreg phase me a “dataBuffer” error appeared. I attach images errors and PC RAM Using Intel i5, 4 GB Ram, I thank you for your invaluable help. Michele …