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Accurate Azimuth Ground Deformation Estimation From Sentinel-1 Time Series

Yague-Martinez, Nestor and Prats-Iraola, Pau (2022) Accurate Azimuth Ground Deformation Estimation From Sentinel-1 Time Series. IEEE Geoscience and Remote Sensing Letters, pp. 1-5. IEEE - Institute of Electrical and Electronics Engineers. doi: 10.1109/LGRS.2022.3160763. ISSN 1545-598X.

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Official URL: https://ieeexplore.ieee.org/document/9738593


This letter proposes the exploitation of the overlapping areas between bursts of Sentinel-1 interferometric wide (IW) swath data for the estimation of ground azimuth deformation velocities from time series, which provides high sensitivity to the North–South direction. The availability of two separated Doppler spectral looks over these areas allows one to obtain high accurate estimates, overcoming the limited performance of classical correlation techniques with coarse resolution modes. Since the estimation is restricted to the (sparsely distributed) burst overlaps, its applicability is limited to geophysical phenomena characterized by a slow spatial variability, e.g., seismic scenarios. We demonstrate the suitability of this approach to time series over a region in Pakistan affected by post-seismic deformation. The estimated mean azimuth velocity performance from real data indicates an accuracy better than 7 mm/year over high long-term coherent areas for a three-year data stack.

Item URL in elib:https://elib.dlr.de/190815/
Document Type:Article
Additional Information:©2022 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE
Title:Accurate Azimuth Ground Deformation Estimation From Sentinel-1 Time Series
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Yague-Martinez, NestorUNSPECIFIEDhttps://orcid.org/0000-0002-4923-8525UNSPECIFIED
Prats-Iraola, PauUNSPECIFIEDhttps://orcid.org/0000-0002-7583-2309UNSPECIFIED
Date:21 March 2022
Journal or Publication Title:IEEE Geoscience and Remote Sensing Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:Yes
Page Range:pp. 1-5
Publisher:IEEE - Institute of Electrical and Electronics Engineers
Keywords:Azimuth ground deformation, Balochistan, enhanced spectral diversity (ESD), interferometry, overlaps, Sentinel-1, synthetic aperture radar (SAR), terrain observation by progressive scan (TOPS), time series
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Aircraft SAR
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute
Microwaves and Radar Institute > SAR Technology
Deposited By: Prats, Dr. Pau
Deposited On:28 Nov 2022 06:12
Last Modified:22 Feb 2024 13:03

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