High-Pass Filters to Reduce the Effects of Broad Atmospheric Contributions in Sbas Inversions: A Case Study in the Delaware Basin

We use Sentinel-1 A/B InSAR to measure deformation rates of -2 to 2.5 cm/yr in the Delaware Basin from fluid injection and extraction relating to oil and gas activity. Long-wavelength atmospheric effects make it challenging to obtain reliable time series, which are necessary to study the time-dependent deformation. We show that high-pass filters isolate the short-wavelength deformation signals from broad-scale atmospheric contributions. Future work will explore automatic ways to choose the most-suitable filter, which may be applied to other tectonically-stable regions.