Java.lang.NullPointerException (again...)

[ABraun]

as you see only very few pixels have high coherence. That means information in all other pixels cannot be trusted.

Please read here for an explanation:

Some explanations about concepts of fringes of interferogram and coherence

Atmospheric phase cannot be removed by a SNAP module as it cannot be modeled, like flat earth phase or topographic phase, for example. If you would make reference measurements of water vapor or have dense time-series data (example) you could theoretically remove the atmospherical phase distortions. This is advanced however (example 2). You calculate an interferogram between a pair of images. It shows you the differences between both images regarding their single phase signal. As the satelli…