Obtaining vertical displacement using InSAR using one flight direction

s1tbx
#1

Hey,

So I am trying to determine vertical displacements caused by the Brumadinho dam collapse that occurred on Jan 25 2019 in Brazil. However, I can only find descending Sentinel-1 data for the area. Is it possible to determine vertical displacements using only these images? If not, is there anything I can do?

Thanks in advance!

#2

You don’t need both Asce and Desc, this issue is discussed in the following posts,

Source of the post (vertical dips.)

Source of the post (vertical disp.)

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#3

If you have InSAR measurements from only one satellite line-of-sight (LOS) direction, you need to make assumptions about the amount of horizontal motion. If you can assume that the horizontal motion is near-zero in the east-west direction, then the InSAR LOS measurement can be estimated as purely vertical deformation.

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