Software Open Access

WGBIS: Bayesian inversion of wrapped satellite interferometric phase to estimate fault and volcano surface ground deformation models

Jiang, Yu; González, Pablo

(1) Introduction

WGBIS is the Bayesian geodetic inversion package that uses as observations, the interferometric wrapped phases.

In WGBIS, earthquake and volcano source parameters are estimated directly from the interferometric wrapped phase, rather than the unwrapped phases, thus phase unwrapping errors are avoided. Using a Bayesian approach, WGBIS provides an assessment of the model uncertainty. Extensive testing shows that this method has the capability to escape local minima during the model inversion.

 

(2) Novel aspects of the WGBIS method:

  • A new method to model interferometric wrapped phase based on Bayesian inference.
  • Wrapped observations are weighted by appropriate data covariance.
  • An improved wrapped interferometic phase data downsampling algorithm.
  • WGBIS further extends current state-of-the-art geodetic modelling of InSAR data to cases where phase unwrapping is difficult or impossible.

 

(3) References

WGBIS is described and applied in a manuscript written by Yu Jiang and Pablo J. González, published in JGR: Solid Earth.

If you use this package, please cite:

  • Jiang, Y., and González, P. J. (2020). Bayesian inversion of wrapped satellite interferometric phase to estimate fault and volcano surface ground deformation models. JGR: Solid Earth.
  • Jiang, Y., and González, P. J. (2020). WGBIS: Bayesian inversion of wrapped satellite interferometric phase to estimate fault and volcano surface ground deformation models. Zenodo. http://doi.org/10.5281/zenodo.3727159

 

(4) Updates

This released version is only aimed for the researcher.

The authors will continue to make development, and publish the latest version on GitHub: 

https://github.com/jiangyuinsar/WGBIS

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