Preprint Technical Note Version 1 Preserved in Portico This version is not peer-reviewed

Assessing the Accuracy of Deformation Time Series Using an Automated InSAR Pipeline

Version 1 : Received: 2 June 2022 / Approved: 7 June 2022 / Online: 7 June 2022 (08:12:53 CEST)

How to cite: Olsen, K.M.; Calef, M.T.; Agram, P.S. Assessing the Accuracy of Deformation Time Series Using an Automated InSAR Pipeline. Preprints 2022, 2022060097 (doi: 10.20944/preprints202206.0097.v1). Olsen, K.M.; Calef, M.T.; Agram, P.S. Assessing the Accuracy of Deformation Time Series Using an Automated InSAR Pipeline. Preprints 2022, 2022060097 (doi: 10.20944/preprints202206.0097.v1).

Abstract

InSAR and associated analytic methods can measure surface deformation from low earth orbit with a claimed accuracy of centimeters to millimeters. The realized accuracy depends on the area being measured and on the choice of analytic method, suggesting one choose a method in response to the area being measured. Here we consider a specific fixed analytic method and compare the results it produces to measurements gathered from other means in a variety of settings. In particular we compare Sentinel-1 InSAR with GPS at the Kilauea volcano around the 2018 eruption, with GPS in the city of Arica, Chile, and with public survey data at a decommissioned tailings mine. In addition, we compare two independent Sentinel-1 InSAR analyses for a railway station in Oslo, Norway. Our goal is estimate the accuracy of a fully automated Sentinel-1 InSAR pipeline in various settings. Our conclusions are that centimeter level accuracy is a reasonable claim in many, but not all settings, and that accuracy is typically not lost by using an automated pipeline, instead of hand-selecting and tuning parameters.

Keywords

InSAR; deformation; validation; GPS; consistency

Subject

EARTH SCIENCES, Geophysics

Comments (0)

We encourage comments and feedback from a broad range of readers. See criteria for comments and our diversity statement.

Leave a public comment
Send a private comment to the author(s)
Views 0
Downloads 0
Comments 0
Metrics 0


×
Alerts
Notify me about updates to this article or when a peer-reviewed version is published.

We use cookies on our website to ensure you get the best experience.
Read more about our cookies here.