Sentinel-1 displacements map in SNAP

[@rohullahsediqi8289]

one of the best video ever i have seen, you know i have been watching so many videos to how can i estimate land subsidence today after 2 years i succussed.

[@Khalilgholamnia2]

I really appreciate your video, it's excellent.

[@b33fcake34]

What is happening at 5:50 ? No explanation of where you got that

[@basitalikhan9961]

can anyone tell?

[@badiluakewak4442]

Its nice class, but how to get polygons during subset that like AOI_WKT,i ts where i will be gets?

[@badiluakewak4442]

Its nice class, but how to get polygons during subset that like AOI_WKT,i ts where i will be gets? And now I will be doing land subsidence, so how will get more videos' for that process, my teachers using SNAP software

[@sweetness2393]

Thank you very much for the video. just a question is there a simple method to convert the displacement into a vertical one , or to 3D displacement?

[@MrGIS]

Yes you can export displacements map as raster and visualize it in QGIS

[@DurgaPrasad-dh8nw]

Thanks for this informative tutorial sir, is it possible to generate DEM contours with less than meter interval on Deformation area, I have to create elevation profile for small ponds in my study area. Thanks.

[@MrGIS]

Yes it's possible even up to millimeters but you need to use advanced InSAR methods and software like SarScape.

[@surajs5266]

Can this be done for subsidence study? Loved your tutorial ❤️

[@MrGIS]

Yes but you need a lot of more scenes at least 20. You can do it in StaMPS. Read about this and persistent scatterers.

[@nz1229]

@@MrGIS Do you need Matlab to use StaMPS or is their less expensive option?

[@Lady_2001]

Thank you very much for the video. I can't put the "snaphu-unwapping" button on the graf building, although I have installed the plugin. Tell me what to do?

[@Lady_2001]

And I have problem with Orbit Files.

[@swadhinsatpathy4527]

How can I produce the displacement values over time?

[@naufalmh1169]

very informative! can this procedure be applied to estimate glacier displacement as well?

[@MrGIS]

I’d rather recommend PSI methods.

[@jonathanaviles5975]

Excelent!!! what means the positive and negative sign?

[@philasibandze4714]

Negative values mean subsidence, while positive values represent surface uplift.

[@cristianorellana7092]

Hi There, thanks a lot for your video, this is great, just a question, I see you are running the unwrapping under Windows, did you check this values?, I thought snaphu doesnt run properly over windows and you had to run it under Linux

[@MrGIS]

Snaphu is available as plug-in in SNAP and works fine on Windows.

[@cristianorellana7092]

@@MrGIS thanks a lot for your answer :)

[@danielalvesjati4755]

Hello. Thank you very much for the class. I have a question, I'm generating an MDE but I'm not sure if I use IW1 or IW3. Some videos, the authors use IW1 and in others IW3, but do not explain the reason. Thanks.

[@MrGIS]

One SLC scene is made of 3 subswaths. If your area of interest is in one of them you have to choose correct subswath. Every subswath has a different area coverage.

[@b33fcake34]

And updated video would be helpful since this is 5 years old. Some of the tools you use are not there anymore or are renamed/moved

[@hofiznavruzshoev1072]

Can MrGIS or anyone tell me how to add snaphu_unwrapping to the graph builder, I don't have it. I have it on radar from menu but not for graph builder. Please, if anyone know write me about it. Thank you very much.

[@maryembenkhelifa9736]

hello, i advise you to do it manually.

[@hussainmengal3041]

greetings MrGIS i can not process my unwrapped file please will process this?

[@aleksandarandonov7011]

Thank you for the structured and very informative video! I started using SNAP recently and I notice that there's no option to do "Snaphu-unwrapping". Is that a Java class you added?

[@MrGIS]

You need to install it as plug-in. From menu Tools--->plugins. Best regards.

[@panchomolt]

@@MrGIS I have installed the Snaphu-unwrapping tool in the system and also as a plugin but I still can't build that step in the Graph Builder, Do you have an idea of what can be happening?

[@angelnicolealvaro3723]

How did you get the exact coordinates of the area you were analyzing (in the subset part)?

[@MrGIS]

Yes that's right.

[@angelnicolealvaro3723]

Dear sir, sorry, i mean, where did you get the exact coords? You were copying and pasting the boundaries of your area in the video. Where can I find that? My study area is in Naga, Cebu in Philippines.

[@MrGIS]

I've made shapefile with my area of interest and then in QGIS made WKT (well know rext) from it. There is a plugin in QGIS.

[@demistevany234]

So this method we called Dinsar, right? Not Insar?

[@MrGIS]

Yes

[@badiluakewak4442]

How to calculate volume using displacement in SNAP software

[@shubhambhosale6028]

Is land displacement and land deformation is the same? And if so then can i use this method for land deformation study? Pls help

[@shubhambhosale6028]

Can we use same process for land deformation?

[@vivekagarwal7134]

@@shubhambhosale6028 yes land deformation and displacement are same.

[@shubhambhosale6028]

@@vivekagarwal7134 thank you...

[@kartikeyvishwas5768]

Can we do this for multiple images.. ex- if w ehave to calculate subsidence for 5 years?

[@MrGIS]

Actually no this method is only for 2 images. For calculating multiple images you need to use PSI methods. There is a plug-in for SNAP called STaMPS for this.

[@172udaynift]

Can displacement be mapped using InSAR in SNAP? Or SarScape is essential?

[@MrGIS]

At this moment no. You need SarScape.

[@chouaibbarkat3479]

Si sir what an amazing job I wender if you can prove or find void with this technologie and what if I send you the location and you help me

[@asepmuhammad8419]

nice video. what the tite of the music backsound?

[@MrGIS]

Actually I don’t remember 😀. Best regards.

[@asepmuhammad8419]

It is possible if use 2 IW in S1- Tops corregistrstion, Like IW2 and IW3? And how to merge IW?

[@MrGIS]

Yes. Look at my video for DEM creation kzbin.info/www/bejne/bajCXpebgriFitU

[@Batang90sto]

are you using pair scene?

[@MrGIS]

Yes

[@Batang90sto]

@@MrGIS do you have tutorial on how to get the pair?

[@MrGIS]

Check Alaska State Facility website there is a tool for best image pair selection.

[@Batang90sto]

@@MrGIS thanks

[@luccimusakulimushi1247]

A useful and helpful video I subscribe to your channel. Can we use the same workflow when processing the CosmoSkymed dataset? I need your email please for further request. Thanks

[@MrGIS]

Thanks. SNAP support CosmoSkymed but haven't processed any skymed data yet. I think workflow will be the same maybe different parameters needed. You have to test it by yourself. Best regards.

[@ugochukwuvictor9623]

Thanks for the video please can i get your email?

[@basitalikhan9961]

?