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
Abstract
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/ | ||||||||||||
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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 | ||||||||||||
Authors: |
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Date: | 21 March 2022 | ||||||||||||
Journal or Publication Title: | IEEE Geoscience and Remote Sensing Letters | ||||||||||||
Refereed publication: | Yes | ||||||||||||
Open Access: | No | ||||||||||||
Gold Open Access: | No | ||||||||||||
In SCOPUS: | Yes | ||||||||||||
In ISI Web of Science: | Yes | ||||||||||||
DOI: | 10.1109/LGRS.2022.3160763 | ||||||||||||
Page Range: | pp. 1-5 | ||||||||||||
Publisher: | IEEE - Institute of Electrical and Electronics Engineers | ||||||||||||
ISSN: | 1545-598X | ||||||||||||
Status: | Published | ||||||||||||
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: | 28 Nov 2022 06:12 |
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