Difference between vertical and LOS displacement

[gomalhunzai]

Thanks @ABraun i already read these topics. One thing which is confusing me is the “+” sign in the tutorial slides. As per you discussion in various topics regarding the Vertical displacement you have mentioned to subtract the value of pixel where no deformation happened.

Question regarding Phase to Displacement and Time series tool in SNAP

the reference height would be at a point where you have high coherence and expect no change in the image. The displacement value at this point is the one to to level to zero (by adding or subtracting the respective value). If you then mask out all areas with low coherence the total displacements along the LOS should remain .