Watson, A.R., Elliott, J.R. orcid.org/0000-0003-2957-4596, Lazecký, M. et al. (3 more authors) (2024) An InSAR‐GNSS Velocity Field for Iran. Geophysical Research Letters, 51 (10). e2024GL108440. ISSN 0094-8276
Abstract
We present average ground-surface velocities and strain rates for the 1.7 million km² area of Iran, from the joint inversion of InSAR-derived displacements and GNSS data. We generate interferograms from 7 years of Sentinel-1 radar acquisitions, correct for tropospheric noise using the GACOS system, estimate average velocities using LiCSBAS time-series analysis, tie this into a Eurasia-fixed reference frame, and perform a decomposition to estimate East and Vertical velocities at 500 m spacing. Our InSAR-GNSS velocity fields reveal predominantly diffuse crustal deformation, with localized interseismic strain accumulation along the North Tabriz, Main Kopet Dagh, Main Recent, Sharoud, and Doruneh faults. We observe signals associated with recent groundwater subsidence, co- and postseismic deformation, active salt diaprism, and sediment motion. We derive high-resolution strain rate estimates on a country- and fault-scale, and discuss the difficulties of mapping diffuse strain rates in areas with abundant non-tectonic and anthropogenic signals.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2024. The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use,distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | InSAR, Iran, velocity field, strain rate, interseismic, groundwater |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 26 Mar 2025 14:29 |
Last Modified: | 26 Mar 2025 14:29 |
Published Version: | https://agupubs.onlinelibrary.wiley.com/doi/10.102... |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1029/2024gl108440 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:224842 |
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Filename: Geophysical Research Letters - 2024 - Watson - An InSAR‐GNSS Velocity Field for Iran.pdf
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