Difference between vertical and LOS displacement

[ABraun]

SNAP cannot do that, but it has been discussed several times in this forum:

Phase to Displacement Units?

It’s a change of vector basis from LOS-vectors (+the orthogonal 3rd basis vector) to a new 3D vector basis (easting. northing. up). The formulas get quite involved, see for example: https://www.researchgate.net/profile/Xiaoli_Ding2/publication/225604929_Inferring_three-dimensional_surface_displacement_field_by_combining_SAR_interferometric_phase_and_amplitude_information_of_ascending_and_descending_orbits/links/00b4952428c1a31364000000.pdf

Difference between vertical and LOS displacement

Strictly speaking, to get the optimum results in intereforometry, the satellite orbits should be the same. The limitation of this is that only one surface displacement vector can be resolved. So, many studies carried out using both ascending and descending orbits to isolate vertical from horizontal motion. have a look on these articles. You can collect a few images derived by both ascending and descending orbits and do the interferometric processing and see what you get. Your graph look…

Difference between vertical and LOS displacement

This article is pertinent to the discussion at hand: