Hi every one, I want to make land subsidence map in Can Tho city, Viet Nam use Sentinel-1 but I just begin with radar image and SNAP software so I hope eavery one can help me How to do that please? step by step use SAR approach to generate Land subsidence
There was a webinar last year. The recorded video is probably a good starting point.
FYI, there is an upcoming RUS Copernicus webinar next 14th June 2018 at 14:00 CEST on how to use SAR interferometry (InSAR) to identify and map land subsidence using the ESA SNAP Sentinel-1 Toolbox and the
RUS Copernicus cloud environment . Check this link for more information and registration.
@ABraun has suggested a link here:
Temporal decorrelation is probably too high to use image at a yearly base.
with ABCD i mean the single images you have. You create pairs of every subsequent ones. First+second, second+third, third+fourth,…
It is unlikely that you will get good results with one image per year (unless you are in arid regions without any vegetation cover).
Maybe these materials help you to understand the theories behind InSAR for subsidence monitoring:
Also if you search the forum you will probably find more information:
Thank you so much, my computer is poor boy, I can not complete dowload Sentinel 1
I will try and practice follow video you attached